1 SimGrid (3.13) UNRELEASED; urgency=low
3 The Easter Trim Release.
6 * s4u::Host is now the prefered public interface to the Host features.
7 sg_host_* functions are C bindings to the exact same behavior
8 MSG_host_* and SD_workstation_* are #define to the sg_host_* ones
11 * simgrid::simix::kernel() is the closure callback. It ensures that
12 the lambda or closure passed as a parameter will run in kernel mode.
13 Every callbacks should be rewritten to that interface at some point.
16 * Reorganizing and cleaning the internals all around the place.
20 - The option smpi/async_small_thres was renamed to smpi/async_small_thresh
21 as we attempt to unify our naming schemes -> smpi/send_is_detached_thresh
24 * Kill the setset datacontainer: it's unused since a while.
27 * Remove the ability to write internal plugins in Java.
28 It may be reintroduced once the ongoing cleanup is done.
30 -- $date Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
32 SimGrid (3.12) stable; urgency=low
37 * Require g++ v4.7 at least to not speak prehistorical C++.
38 * Require Boost 1.48 (for signal2 component).
39 * Java must be version 7 at least when activated.
40 * Builds on Windows again (including Java bindings).
41 * Tracing is now always enabled (no way to turn it out)
42 * Remove GTNetS. It was not working anyway.
43 * Various cleanups in the cmake scripts.
44 * Move headers around to sort them out on installed systems:
45 - instr/instr.h -> simgrid/instr.h
46 - instr/jedule/* -> simgrid/jedule
47 - simdag/datatypes.h was removed
48 - simdag/simdag.h -> simgrid/simdag.h
49 - msg/datatypes.h was removed
50 - msg/msg.h -> simgrid/msg.h
53 * Interface improvement:
54 - Rename MSG_host_is_avail(h) to MSG_host_is_on(h)
55 - Sanitize the interface in MSG_task_ module:
56 - Merge two functions that were close enough but misleading:
57 set_compute_duration(t) -> set_flops_amount(t)
58 get_remaining_computation(t) -> get_flops_amount(t)
59 - set_data_size(t) -> set_bytes_amount(t)
60 get_data_size(t) -> get_bytes_amount(t)
61 - Massive cleanups in the functions related to the energy
62 - MSG_host_get_pstate_number() -> MSG_host_get_nb_pstates()
63 - New: MSG_host_get_pstate()
65 - msg/energy/onoff: switching hosts on and off
67 * Interface improvement:
68 - Rename Host.isAvail() to Host.isOn()
69 - Rename Process.currentProcess() to Process.getCurrentProcess()
70 - Rename Task.setDataSize() to Task.setBytesAmount()
71 - Merge Task.getRemainingDuration() and Task.getComputeDuration() into Task.getFlopsAmount()
73 - #18874: Actually allows the GC to reclaim tasks
77 - SIMIX_process_throw: raises an exception in a remote process
78 * Refactoring: Separate sub-modules
79 - libsmx: the public interface, as libc in a real system
80 - popping: the strange dance that converts a user request into a kernel handling
81 - smx_context_*: the virtualization mechanisms that embed the user code
82 - smx_*: the handling of each simcalls
84 - simcall_host_set_power_peak_at -> simcall_host_set_pstate
85 * Rename smx_action_t into smx_synchro_t, making explicit that these
86 things are used to synchronize processes with their environment.
87 For example, a communication is a sort of synchronization involving
88 the communicating processes (that may block until the exchange) and
89 the platform. The same can be said from computations, etc.
91 - #18888: segfault when a process ends before its kill_time
95 - Onesided early support for : MPI_Win_(create, free, fence, get_name, set_name, get_group), MPI_Get, MPI_Put, MPI_Accumulate, MPI_Alloc_mem, MPI_Free_mem.
96 - MPI_Keyval*, MPI_Attr* functions, as well as MPI_Comm_attr*, MPI_Type_attr* variants (C only, no Fortran support yet)
97 - MPI_Type_set_name, MPI_Type_get_name
98 - MPI_*_c2f and MPI_*_f2c functions
99 - MPI_Info_* functions (beware, get_nthkey may not follow the insertion order)
100 - MPI_Pack, MPI_Unpack and MPI_Pack_size functions
101 - Activate a lot of new tests from the mpich 3 testsuite
103 - Constant times can be injected inside MPI_Wtime and MPI_Test through options smpi/wtime and smpi/test
104 - InfiniBand network model added : Based on the works of Jerome Vienne
105 http://mescal.imag.fr/membres/jean-marc.vincent/index.html/PhD/Vienne.pdf
106 - When smpi/display_timing is set, also display global simulation time and application times
107 - Have smpirun, smpicc and friends display the simgrid git hash version on --git-version
108 * Collective communications
109 - SMP-aware algorithms are now dynamically handled. An internal communicator is created for each node, and an external one to handle communications between "leaders" of each node
110 - MVAPICH2 (1.9) collective algorithms selector : normal and SMP algorithms are handled, and selection logic is based on the one used on TACC's Stampede cluster (https://www.tacc.utexas.edu/stampede/).
111 - Support for Rabenseifner Reduce/Allreduce algorithms (https://fs.hlrs.de/projects/par/mpi//myreduce.html)
113 - Replay now uses algorithms from wanted collective selector
114 - Replay can be used with SMP-aware algorithms
115 - Memory occupation of replay should now be contained (temporary buffers allocated in collective algorithms should be shared between processes)
116 - Replay can now replay several traces at the same time (check examples/smpi/replay_multiple example), to simulate interactions between several applications on a given platform. User can specify the start time of each instance. This should also allow replay + actual applications to run.
118 - [#17799] : have mpi_group_range_incl and mpi_group_range_excl better test some corner cases
119 - Correctly use loopback on fat-tree clusters
120 - Asynchronous small messages shouldn't trigger deadlocks anymore
121 * Energy/DVFS cleanup and improvement
122 - smpi_set_host_power_peak_at() -> smpi_set_host_pstate()
123 - new: smpi_get_host_pstate()
126 - "Full" network optimization flag was broken since Surf++
127 - Better handling of precision flags in maxmin
128 - Fix bug causing sometimes "Impossible" errors
129 - Properly pass cluster properties to included hosts
130 * Improvement of the Energy plugin.
131 - Always update the consumption before returning that value
132 - New property: watt_off to denote the dissipation when the host is off
133 - New functions getWattMinAt and getWattMaxAt to retrieve the
134 dissipation of pstates that we are not currently at.
135 * Java: class NetworkLink renamed to Link
136 * New function: simcall_process_get_kill_time()
137 * Massive rename s/workstation/host/
138 - That's intrusive, but that's good for the project consistency. Sorry.
139 - Change config option "workstation/model" into "host/model"
142 - Add a xbt_heap_update function, to avoid costly xbt_heap_remove+xbt_heap_insert use
143 - Add a xbt wrapper for simcall_mutex_trylock (asked in [#17878])
144 - Add two new log appenders : rollfile and splitfile. Patch by Fabien Chaix.
145 - xbt_dirname and xbt_basename for non-POSIX systems
147 * The model checker now runs as a separate process.
148 * The model checker runs must now be launched with the new simgrid-mc program.
149 * Record/Replay: the MC can display a textual representation of a path in the
150 execution graph. It can then be replayed outside of the model checker.
152 -- Mon Oct 12 06:02:41 CEST 2015 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
154 SimGrid (3.11) stable; urgency=low
159 * Normalizing pointers addresses tool for better diff between logs
162 * Add cloud examples using new VMs
163 - examples/msg/cloud/two_tasks_vm.tesh
164 - examples/msg/cloud/simple_vm.tesh
165 - examples/java/cloud/cloud.tesh
166 - examples/java/cloud/migration/migration.tesh
167 * Add java surf examples:
168 - examples/java/surfPlugin/surf_plugin.tesh
169 - examples/java/reservationSurfPlugin/reservation_surf_plugin.tes
170 - examples/java/surfCpuModel/surf_cpu_model.tesh
171 * Add SMPI+MSG example:
172 - examples/smpi/smpi_msg_masterslave/
177 - msg task destroy cancel test
178 - msg_host on/off test
179 * Move all tests in testsuite to teshsuite (adding tesh files)
180 * Restructure teshsuites
181 - one folder for each kind of test
182 * Restructure AddTests.cmake
184 - structure the order of tests (with sections)
187 * Add virtual machine
188 - creation of a VM on a PM
189 - migration of a VM from a PM to another PM
191 - MSG_process_join(msg_process_t process, double timeout)
192 - msg_bar_t MSG_barrier_init(unsigned int count)
193 - int MSG_barrier_wait(msg_bar_t barrier)
194 - void MSG_barrier_destroy(msg_bar_t barrier)
195 - msg_as_t MSG_environment_as_get_by_name(const char * name)
196 * New option "msg/debug_multiple_use" to help debugging when a task is used
199 - Improvements and finalization of MSG_storage, MSG_file APIs and their
201 - Increase code coverage in test suites
205 * Protect context stacks against stack overflow. The number of protected memory
206 pages allocated on the top of each stack (1 by default) can be configured
207 with the new command line option --cfg=contexts/guard_size:<value>.
208 * Simcalls are now generated by a python script that
209 - generates files included by SimGrid
210 - checks that all the functions exist, and proposes prototypes
212 - remove sem_destroy, file_set_data, comm_destroy, vm_set_state,
213 host_set_data, host_get_data
215 - simcall_process_join(smx_process_t process, double timeout)
216 * Fix bug where sleeping processing could not be suspended.
219 * Translate surf models from C to C++
220 - Generic classes for all models: Model, Resource, Action
221 - A generic interface for each kind of model (CPU, Network, Storage
222 Workstation, WorkstationVM)
224 * Translate surf routings from C to C++
225 * Add callbacks using sigc++ or boost::signals2
226 - Add callback functions for resource creation/destruction
227 - Add callback functions for action state change
228 - Handle Energy as a plugin
229 * Replace swag by boost::intrusive
230 * Add new routing models for clusters. For documentation, see
231 http://simgrid.gforge.inria.fr/simgrid/latest/doc/platform.html#pf_cluster
232 - tori, with topology="TORUS" and topo_parameters="ndim1,ndim2,...,ndimn"
233 parameters for cluster tag
234 - Fat trees, with topology="FAT_TREE" and
235 topo_parameters="h;m1,...,mh;w1,...,wh;p1,...,ph" parameters for cluster tag
236 - see examples/platforms/torus_cluster.xml and
237 examples/platforms/fat_tree_cluster.xml
241 * Hostfiles support host:nb_processes construct to deploy several processes on
243 * Collective communication algorithms should not crash if used with
244 improper number of nodes and report the error.
245 * SMPI now partially supports MPI_Topologies : MPI_Cart_create, MPI_Cart_shift,
246 MPI_Cart_rank, MPI_Cart_get, MPI_Cart_coords, MPI_Cartdim_get,
247 MPI_Dims_create, MPI_Cart_sub are supported.
248 * New interface to use SMPI programmatically (still depends on MSG for
249 some parts, see examples/smpi/smpi_msg_masterslave) :
250 - SMPI_app_instance_register(const char *name, xbt_main_func_t code,
254 * Global variables privatization in MPI executables is now performed at runtime
255 with the option smpi/privatize_global_variables (default:no).
256 Limitations : Linux/BSD only, with mmap enabled. Global variables inside
257 dynamic libraries loaded by the application are not privatized (static
258 linking with these libraries is advised in this case)
261 * Options defined in XML work correctly now.
264 * New cmake option, enable_lib_in_jar, to control whether native libraries are
265 copied into simgrid.jar or not (ON by default). Use this option if you want
266 to reduce the size of the installed simgrid.jar, *and* the native libraries
267 are kept installed elsewhere.
268 * Surf binding with SWIG (code generated in maintainer mode only):
269 - plugin to handle callbacks
270 - CPU model only for the moment
273 * Supernovae build mode is definitively removed. It was used to improve
274 inlining and inter-module optimizations. It is nowadays superseded by
275 link-time optimizations commonly available in compilers.
276 * Update ns-3 find lib. Bindings for ns-3 should work again now.
277 * Add boost dependency for surf++
278 * Add new macro for tests
279 - ADD_TESH(name <tesh_args>)
280 - ADD_TESH_FACTORIES(name "thread;ucontext;raw" <tesh_args>)
284 - xbt_bar_t XBT_barrier_init(unsigned int count)
285 - int XBT_barrier_wait(xbt_bar_t barrier)
286 - void XBT_barrier_destroy(xbt_bar_t barrier)
287 * Make the xbt_os_time module public
289 -- Sat May 31 22:39:38 CEST 2014 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
291 SimGrid (3.10) stable; urgency=low
293 The Clean Diaper Release, a.k.a. SimGrid is leak-free.
296 * Reintegrate Java to the main archive as desynchronizing these
297 package is not acceptable anymore (Java is now considered stable)
298 * Add explicit synchronization facilities through semaphores
299 * Bug fix: Task.setDataSize() only changed the C world, not the value
300 cached in the Java world
303 * Dramatically change the way files are handled. API and internals changed, but
304 this part of MSG was not considered as production grade either.
305 * Add explicit synchronization facilities through semaphores
306 * Add a new function MSG_host_get_process_list()
307 * Preliminary DVFS support (see examples/msg/energy/ for details)
310 * SMPI is now included directly in the libsimgrid as the windows
311 linker doesn't force us on splitting it anymore.
312 * Improvements of the SMPI replay tool:
313 - Most of the collective communications are now rooted in the same process as
314 in the original application.
315 - Traces now rely on the same MPI data type as the application (MPI_BYTE was
316 used until now). Multiple data types can now be used in a trace.
317 - The replay tool now supports traces produce either by TAU or a modified
319 - Bug Fix: the compute part of the reduce action is now taken into account.
320 - Gatherv collective is now supported
321 - SimGrid (SMPI for now) can generate replay traces as well. Option -trace-ti
322 of smpirun outputs time independent traces for the current run. One file
323 is created per process. If too many processes are simulated, this behavior
324 can be changed to one file for all processes by using the
325 tracing/smpi/format/ti_one_file flag
326 * smpirun generates the host file if needed (with given host count and platform)
327 * Integration of more than 100 STAR-MPI, MPICH, OpenMPI collective algorithms
328 - allows to select one in particular with --cfg=smpi/coll_name:algorithm
329 - allows to use the decision logic of OpenMPI(1.7) or MPICH(3.0.4) by setting
330 --cfg=smpi/coll_selector:(mpich/ompi)
331 * Support for new functions : MPI_Issend, MPI_Ssend, Commutative operations in
333 * Add a --cfg:tracing/smpi/internals option, to trace internal communications
334 happening inside a collective SMPI call.
335 * Fix the behavior of complex data types handling.
336 * Make MPI_Wtime another synchronization point to take computations into
338 * Replace MPICH-1 test suite by the one from MPICH 3.0.4. Can be built using
339 enable_smpi_MPICH3_testsuite flag in cmake. Run with ctest.
340 * Add all missing Fortran bindings, SMPI should work with Fortran 90
341 (no privatization of global variables yet)
342 * Preliminary DVFS support (see examples/smpi/energy/ for details)
345 * Verification of liveness properties is now available for SMPI applications
346 (in addition to MSG applications)
347 * Bugged examples using SMPI in examples/smpi/mc/
348 * Add --cfg=model-check/visited option. Allows the verification of infinite
349 programs. Detection of loops in the execution thanks to the system state
350 comparison and reduction of the state space to explore. Can be combined with
351 DPOR for safety properties.
354 * Allow to change SimGrid configuration (see --help) within the code
355 thanks to SD_config() as it can be done in MSG.
356 * Add a new function SD_task_set_amount() upon user request.
359 * Handle units for values (10ms, 10kiloflops, 10Bps, 1GB, ...)
360 * Remove rule based routing (no more PCRE dependency)
361 * Add a limiter_link option to cluster tag, to specify a maximum reachable
362 bandwidth in fullduplex mode when it is less than twice the nominal bandwidth.
363 * Add a loopback_bw and loopback_lat options to cluster tag.
364 * Fix the peer tag that could not be mixed with other AS within a Vivaldi
365 routing. Now peers are encapsulated in an AS and have their own private
366 router but this is transparent.
369 * Our own implementation of getline is renamed xbt_getline, and gets
370 used even if the OS provide a getline(). This should reduce the
371 configuration complexity by using the same code on all platforms.
372 * New type: xbt_cfg_elm_boolean.
373 * Allow to use yes/no for boolean configuration options in the command line.
374 * Allow to disable SimGrid cleanups at exit from command line option.
375 There are situations where one may want a simulation to end with an exit.
376 Unfortunately, calling exit may cause SimGrid to segfault, which is quite
377 annoying when scripting around the simulator. Adding a
378 --cfg=clean_atexit:no allows to circumvent this issue.
381 * Lots of memory leaks were corrected in this release.
382 There is no known memory leaks anymore, in all of our 600+ tests.
383 * New command line option --version, to get SimGrid version information.
384 Packagers may want to add extra words to SIMGRID_VERSION_EXTRA defined in
386 * Supernovae builds are deprecated, and expected to be removed in the next
389 -- Sun Nov 17 00:26:44 CET 2013 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
391 SimGrid (3.9) stable; urgency=low
393 The Grasgory release: GRAS is really dead now.
395 * Complete overhaul of the internal host structures scheme.
398 * If you use GRAS, you should stay at SimGrid 3.5 (at most) since it
399 was considered as experimental and badly maintained since then.
400 * Keeping it was thus a trap to our potential users, that could take
401 it instead of MSG or SMPI by mistake despite is pity state.
402 * GRAS seems to have very few users (if any), and no one volunteered
403 to maintain it further. It also induces a lot of XBT code (for
404 portability sake), that must be maintained too.
405 * For all these reasons, we killed GRAS. If someone wants to revive it
406 in the future, don't cry, our git history still remembers of GRAS.
409 * Major overhaul. Merge our documentation again as time proved that
410 splitting it was really not helping our users.
411 * Further improve the developer documentation to help newcomers
412 hacking on SimGrid itself. The user documentation (and in
413 particular, the beginner documentation) is still in a sorry state.
416 * Now works on Windows too!
417 * Much more extensive test suite, from MPICH
420 * Add a new loader (SD_PTG_dotload) that creates a parallel task graph
421 (i.e., a DAG whose nodes are parallel tasks) from a dot file. Creates a
422 dynar of SD_TASK_COMP_PAR_AMDAHL and SD_TASK_COMM_MXN_1D_BLOCK tasks.
423 * Bug fix: let task be scheduled when the last dependency to be solved is
424 a control dependency.
425 * Remove SD_load_environment_script function.
426 Use the C sg_platf function if you want to declare a platform
430 * New function: MSG_process_get_number()
431 * Old function documented: MSG_config()
432 * Remove MSG_load_platform_script function
433 Use the C sg_platf function if you want to declare a platform
437 * Change the default value of the TCP_gamma constant (maximal size of TCP
438 congestion window) to a more realistic 4MiB value. If you notice changes in
439 your simulation results, you can fall back to the previous 20k tiny window
440 by adding --cfg=network/TCP_gamma:20000 on command line.
441 * (Hopefully) fix a bug wrt periodic availability and state traces
442 * Bug fix: use default values at start when first event in availability/state
443 trace is not at time 0.
446 * remove the "new_" part of function name sg_platf_new_trace_connect
447 (resulting in sg_platf_trace_connect), since it does not create
451 * Kill synchronized dynars, and xbt_dynar_dopar(). We cannot think of a
452 use case where it's really mandatory, and maintaining it was a pain in
454 * New: xbt_fifo_search(), search an item with a user-provided
455 comparison function instead of dumb pointer comparison.
458 * Fix the lua deployment:
459 Use `simgrid.init_application()` before deployment instead of
460 `simgrid.msg_register_application()` after.
463 * Transfer the tracing files into the corresponding modules.
465 -- Tue Feb 5 11:31:43 CET 2013 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
467 SimGrid (3.8.1) stable; urgency=low
469 The "we are told that some people want to also *install* the simgrid
472 * Add missing file "tesh.1" to the archive.
474 -- Sat Oct 27 16:12:11 CEST 2012 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
476 SimGrid (3.8) stable; urgency=low
478 The Psssshiiiit release: SimGrid jumps into the Cloud.
481 * Add an experimental interface to manipulate VMs. They are mainly
482 process groups with very few intrinsic semantic, but they should
483 allow you to build the semantic you want easily.
484 * New function: MSG_host_set_property_value()
485 * New function: MSG_process_on_exit(). To clean memory in all cases.
486 * Bug fixes that made the host (and link) failures unusable.
487 * Add a way to auto-restart process when the host in which they are
488 executing comes back (ON_FAILURE="RESTART" on deployment file,
489 MSG_process_auto_restart_set).
490 * Use the "msg_" prefix for all datatypes (instead of m_, msg_ and MSG_),
491 please stop using the old ones, they are DEPRECATED.
493 * Deprecate functions MSG_global_init() / MSG_global_init_args()
494 Please use MSG_init() instead. (reducing the amount of entry
495 points in the library helps us).
496 * Make it impossible to link against the wrong version of the lib
497 * Deprecate MSG_clean(). No need to call it anymore.
498 * Function MSG_get_host_number() is not deprecated anymore.
501 * Split the doc into a user guide and a reference guide.
502 * Start a developper guide to help people hacking on SimGrid.
505 * Enable tracing by default. This modules rocks you should use it.
506 * Remove option custom_flags. Now use environment variables CFLAGS
508 * Use default cmake things to detect lua instead of home grown ones.
509 * New option "enable_mallocators" to disable mallocators, for debugging
510 purpose ("on" by default).
513 * Bug fixes around the resource failures: don't let the processes
514 survive the host they are running onto.
515 * Add an interface to auto-restart processes when the host in which they are
516 executing comes back.
517 * Ensures that SIMIX_clean is called automatically. It's not part of
518 the public interface anymore (bindings should be updated).
521 * Bug fix for when SD_Simulate is called with a positive value: be careful
522 when comparing doubles. Sometimes they are different for non significant
524 * New types of typed tasks. SD_TASK_COMP_PAR_AMDAHL represents a
525 parallel task whose initial work is distributed among host according
526 to the Amdahl's law. Such tasks are created with a parameter alpha
527 that corresponds to the non-parallelizable part of the computation.
528 SD_TASK_COMM_PAR_MXN_1D_BLOCK represents a complex data redistribution
529 between two sets of workstations assuming a 1D block distribution (each
530 workstation owns a similar share of data) on both sides.
532 These tasks can be scheduled with SD_task_schedulel or SD_task_schedulev.
533 Data redistribution will be automatically scheduled once parent and child
534 are both scheduled. The filling of computation_amount and
535 communication_amount structures is now done seamlessly thanks to the chosen
537 * New function SD_workstation_dump to display various information
538 * New function SD_task_set_rate to throttle the bandwidth allowed to be used
539 by a SD_TASK_COMM_E2E typed task. This rate depends on both the nominal
540 bandwidth on the route onto which the task is scheduled and the amount of
542 To divide the nominal bandwidth by 2, the rate then has to be :
543 rate = bandwidth/(2*amount)
544 * Compute tasks that have failed can now be rescheduled and executed again
545 (from their beginning)
546 * Increasing source code coverage (src/simdag is now covered at 95.8%
550 * Re-implement time-independent trace replay using SMPI (at the
551 smpi_smp_* level) instead of MSG. This should replace
552 examples/msg/actions/actions.c
553 * Implement support of MPI Datatypes (vectors, hvectors, indexed,
554 hindexed and structs)
555 * Implement the exchange of non-contiguous data.
556 [Khalid Hasanov & Jean-Noel Quintin] Thanks for the patch, guys.
557 * Correct behavior of smpi/sender_gap and set its default value to 0
558 * Add option to asynchronously send small messages to allow better
559 simulation of pt2pt communications. --cfg=smpi/async_small_threshold:value
560 specifies the size in bytes under which messages will be asynchronously sent.
561 * Add support of MPI_Iprobe, MPI_Probe, MPI_Testall, MPI_Wtick functions
562 * SMPI now handles more MPI specific values in input. Closes [#14389] and [#14388]
565 * New C interface to define a platform: XML is now optional.
566 For more info, please check include/simgrid/platf.h.
567 * New interface to define random platforms from the C:
568 For more info, please check include/simgrid/platf_generator.h and
569 examples/msg/masterslave/masterslave_platfgen.c
570 * Export a sg_cmdline dynar containing all the arguments we got from
574 * Two new tracing options for adding comments to trace file so you
575 can track your experiments (see --help-tracing for details).
576 * New option to generate a impoverished trace file (--cfg=tracing/basic:1)
577 * Adding the SimGrid version that generated the trace file as a comment.
578 * Instrumenting other MSG functions (MSG_task_isend_with_matching and MSG_task_dsend)
579 * Fix to avoid key clashes on Paje links
580 * Other minor fixes related to the Paje specification
583 * Functions xbt_dict_hash() and xbt_dict_hash_ext() are made public,
584 and renamed to xbt_str_hash() and xbt_str_hash_ext().
585 * New function: xbt_os_timer_resume() to restart a timer w/o resetting it.
586 * Greatly improve the robustness of mmalloc to user errors (such as
587 using an area after freeing it, or freeing it twice)
589 -- Thu Oct 25 17:30:06 CEST 2012 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
591 SimGrid (3.7.1) stable; urgency=low
594 * Restore the prototype of MSG_process_create_with_environment() to
595 the pre-3.7 situation by removing the kill_time argument.
596 * Add a MSG_process_set_kill_time() function instead.
599 * Fix weird behaviors when dealing with parallel tasks.
602 * Simgrid is now built as a dll.
603 * Simgrid-java now works on Windows.
604 * Simgrid-Java is now included into Windows package.
607 * First pre-build package for MacOSX.
610 * Fix compilation when using MSG_USE_DEPRECATED.
611 * Fix some compilation issues on Macs and Windows.
612 * Reduce the number of failing tests on exotic systems, like Debian/Hurd.
613 * Environment variables CFLAGS and LDFLAGS are now honored by cmake.
615 We discovered that the Lua console is broken, but we are missing the
616 manpower to fix it right now. The problem existed in 3.7 too, so we
617 are not blocking the release for that. Sorry if you depended on this
618 feature, any help would be really welcome.
620 -- Thu Jun 7 2012 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
622 SimGrid (3.7) stable; urgency=low
624 The "spring cleanups (before the next Big Project kicks in)" release.
627 * We can specify the SMPI latency/bandwidth factor with command line
628 add --cfg=smpi/bw_factor:"threshold0:value0;...;thresholdN:valueN"
629 or add --cfg=smpi/lat_factor:"threshold0:value0;...;thresholdN:valueN"
630 You can also use the "config tag" from platform file by adding this line
631 <prop id="smpi/bw_factor" value="threshold0:value0;...;thresholdN:valueN"></prop>
632 (see "example/platforms/tag_config.xml" to use "config tag").
633 Note that the command line supersedes the platform file configuration.
634 * Change the correction factors used in LMM model, according to
635 the latest experiments described in INRIA RR-7821.
636 Accuracy should be improved this way.
637 * Use the partial invalidation optimization by default for the
638 network too. Should produce the exact same results, only faster.
639 * Major cleanup in surf to merge models and split some optimization
640 mechanisms from the core of the models. As a result you can now
641 specify which model to use (e.g., --cfg=network/model:LV08
642 --cfg=cpu/model:Cas01) and which optimization mode to use
643 (e.g., --cfg=network/optim:lazy --cfg=cpu/optim:TI).
644 Incompatible combinations should err at initialization. See
645 --help-models for the list of all models and optimization modes.
646 * The CLM03 workstation model was dropped for simplicity because it
647 used the deprecated CM02 network model. Use default instead.
648 * Rename the TCP_gamma configuration option to network/TCP_gamma
649 * Rename the coordinates configuration option to
650 network/coordinates, and document it
651 * Use now crosstraffic keyword instead of the terribly misleading
652 fullduplex keyword. It is activated by default now in the current
653 default model, use --cfg=network/crosstraffic:0 to turn it off.
654 * Ongoing refactoring the model parsing to make XML files optional
655 See include/simgrid/platf.h for details (still to be completed)
658 * Major overhaul of the documentation. Almost instructive now :/
659 * Deprecate the use of m_channel_t mechanism like MSG_task_{get,put}
660 functions and friends. This interface was considered as
661 deprecated since over 2 years, it's time to inform our users that it is.
662 Switch to MSG_task_{send,recv} instead, or compile SimGrid command line
663 'cmake -Dcustom_flags="-DMSG_USE_DEPRECATED" .' if you really need to
664 use these (crappy) functions in your code.
665 These functions will be removed soon. Stop using them now.
666 * Deprecate MSG_get_host_{table,number}
667 Implement MSG_hosts_as_dynar() instead.
668 * Implement MSG_processes_as_dynar() (Closes gforge #13642)
669 * Remove the public field msg_host_t->name. Use MSG_host_get_name()
672 * Stabilize the parallel execution mode of user contexts
673 * Introduce configuration variables to control parallel execution:
674 - contexts/synchro: Synchronization mode to use when running
675 contexts in parallel (either futex, posix or busy_wait)
676 - contexts/parallel_threshold: Minimal number of user contexts
677 that must be part of a scheduling round to switch to parallel
678 execution mode (raw contexts only)
679 * Fix bugs that prevented to use suspend/resume along with
680 synchronization structures.
681 * Fix bugs in process termination that lead to invalid memory access
682 in very specific conditions.
685 * Introduce a parallel mode for the models (controlled by surf/nthreads
686 configuration item). In our tests, running the models in parallel
687 never lead to any speedups because they are so fast that the gain
688 of computing each model in parallel does not amortizes the
689 synchronization costs, even when ultra fast futexes are used.
690 This is released anyway because YMMV.
693 * Performance boost by using a swag internally to compute the set of
694 tasks that are finished and should constitute the return value of
698 * Enable it by default now that it is considered rather stable.
701 * Documentation of the tracing functions.
702 * Performance gains when tracing categorized/uncategorized resource
703 utilization by avoiding calls to get route when updating resource
704 variables. LMM constraints are being used instead.
705 * API changed to set task categories. Use MSG_task_set_category instead
706 of TRACE_msg_set_task_category, and SD_task_set_category instead
707 of TRACE_sd_set_task_category. They only work if ENABLE_TRACING is ON.
708 * Bugfix for graphicator, routes not correctly obtained, memory leaks
709 * Examples for link user variables added (see at examples/msg/tracing/)
710 * Deprecated function TRACE_msg_set_process_category completely removed
711 * Trace header updated according to the latest Paje file format
712 * Tracing network lazy updates, no longer obligate users to use full updates
713 * --cfg=tracing/platform:1 also registers power/bandwidth variables
714 * Experimental: let user code declare/set/push/pop application states for hosts
715 * API changed to allow the manual creation of graph configuration files
716 for Triva. See TRACE_get_node_types() and TRACE_get_edge_types().
719 * Improve the API of Lua MSG bindings, using the Lua spirit.
720 * Each simulated process now lives in its own Lua world (globals are
721 automatically duplicated). It helps writing simulators. Will allow
722 to run Splay programs within SimGrid in the future.
723 * Add a Chord example in Lua, equivalent to the MSG one.
726 * Start the implementation of a solution to express temporal
727 properties, not only local assertions. This is still an
728 experimental work in progress, stay clear from it to be safe.
732 - Add new runtime parameters --help-logs and --help-log-categories
733 to display informations about supported logging parameters and
735 - Old deprecated parameters --{gras,surf,msg,simix,xbt}-log=...
736 don't exists anymore.
737 * Mallocators: allow value NULL for the reset function.
739 - New function xbt_dict_new_homogeneous(void(*)(void*)) to
740 create homogeneous dictionaries, where all the elements share the
741 same free function. Non homogeneous dictionaries will be
742 deprecated in the next release.
743 - Dicts of scalar elements (xbt_dicti_*) are deprecated.
744 - Multi-level dictionaries are deprecated.
746 - new function xbt_dynar_search_or_negative() that is useful when
747 you have less than 2 million elements in your dynar and don't
748 want of the extra complexity of catching exceptions when the
749 element is not found.
751 - Make xbt_os_thread module (for thread portability) public.
752 Documentation is still to come, sorry.
754 - Cleanups and simplifications to make it maintainable again.
755 - Exotic features (such as memalign and valloc) were removed.
756 - The metadata were extended and improved so that the
757 model-checker becomes able to explore and inspect the heaps.
758 - This may induce a performance drop when enable_model-checking is
759 ON in cmake (even if it's not used in the simulation), but it is
760 necessary at this point to get MC working.
762 Turn model-checking OFF if simulation performance matters to you.
763 Not enabling it at runtime is not enough, disable it in cmake.
765 -- Tue May 15 11:30:19 UTC 2012 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
767 SimGrid (3.6.2) stable; urgency=low
769 The "Not coding new stuff allows to polish old things" release.
772 * New bindings to the NS3 packet level simulator (experimental)
773 * Use the raw (efficient) execution contexts instead of the sysv
774 (portable) ones when possible.
775 * libpcre is now mandatory in any cases since not using it led to
776 severe performance loss and possibly other issues
777 * Update the XML platforms:
778 - G5K: include the latest machine in Nancy
779 - GridPP and LCG: new platforms
780 * Documentation was partially updated, at least (more to come)
782 Bug fixes, cosmetics and small improvements
783 * Free terminated processes before the end of the simulation to avoid
784 exhausting the memory of users having very dynamic amount of
786 * Bug fix and cosmetics about canceling non-running tasks
787 * Bug fix about the dot loader's issues when using libcgraph
790 * Create an installer for windows with nsis (amd64 and win32)
791 - Add an hello world project to illustrate simgrid project creation.
792 - Embed libpcre into the Simgrid installer to avoid
793 its compilation burden
794 * The raw execution contexts should work on Apple now
795 * Port to Windows 64 bits
796 - Sysv contexts now have an implementation for this arch
797 - GRAS communication features now support this arch
798 * Drop support for borland compiler on windows
799 - this code was not maintained, and we kinda depend on gcc nowadays
800 * Fix portability issues on kfreebsd/gnu: build error about semaphores
801 * Fix portability issue on unstable ubuntu: linker became picky on
804 -- Wed Oct 5 15:51:01 CEST 2011 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
806 SimGrid (3.6.1) stable; urgency=low
808 The "Oops, we broke Macs too" release
811 * Fixed contexts detection so that raw ones are used when possible
812 * On Mac, do not use Posix Ucontexts with gcc v4.[1-5] since this
813 leads to a strange error, with user code segfaulting sometimes when
814 the generated code is not perfectly aligned (which is not
815 controllable from the user side, depends on the amount of code)
818 * New macro: CATCH_ANONYMOUS, which is like CATCH(e) but without argument.
820 -- Mon Jun 27 13:59:03 CEST 2011 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
822 SimGrid (3.6) stable; urgency=medium
824 The Summer Release, also known as the "OMG! They Killed Kenny!" version
827 * Bindings now constitute their own package, separated from the main one.
828 Rationale: reduce our maintenance nightmare by reducing the module coupling
829 They will soon be released on their own on gforge.
831 svn co svn://scm.gforge.inria.fr/svn/simgrid/contrib/trunk/simgrid-java
832 svn co svn://scm.gforge.inria.fr/svn/simgrid/contrib/trunk/simgrid-ruby
834 GRAS: It is not considered as stable anymore, but experimental. Sorry.
835 * It's not quite deprecated for now because we have no replacement,
836 but it may soon become the case.
839 * New MPI functions supported: MPI_Comm_disconnect, MPI_Comm_get_name
840 * Fortran: New user-level cache variable to store the rank of the running
841 process. This improves performance by an order of magnitude.
842 * C: New coccinelle script to automatically locate and modify global and
843 local static variables.
844 * Improved SMPI network model with a sender-side gap to account for multiple
848 * New function MSG_comm_get_status(). MSG_comm_test() and MSG_comm_testany()
849 only say if a communication is finished, no matter whether it succeeded or
850 failed. You can call MSG_comm_get_status() to know the status of a finished
852 * New function MSG_task_dsend() to send a task and detach it. When a
853 communication is detached, you are never notified of its success or failure
854 and the memory is released automatically once it is finished. This function
855 is useful when you don't care about the end nor the success of a
857 * Change the prototypes of action replay. Sorry for inconvenience,
858 but this is really more efficient this way (and to adapt your code,
859 you just have to fix the initialization, that shouldn't be too long)
860 * Kill the braindead MSG_task_refcount_dec() function. I guess nobody
861 ever managed to do anything useful with it.
862 * New function MSG_comm_testany(). Similarly to MSG_comm_waitany(), it
863 takes a dynar of communications. It returns immediately and gives the
864 index of a finished communication (if any).
865 * New example: a basic implementation of the Chord P2P algorithm.
868 * New model for multi-core CPUs. You can now use the core attribute to
869 precise the number of cores of a host. This is a basic model. Every
870 process running on the host receives at most the power provided in
871 the DTD (throughput<=power). Total throughput of process cannot exceed
873 * New peer tag. This peer tag creates a tiny AS comprising a host and a
874 router linked by an up-link and a down-link (possibly asymmetrical).
875 This kind of pattern allows to easily build last-mile model style platforms.
876 Aggregating such patterns in a rule-based AS is thus the technique of
877 choice for modeling large peer-to-peer/volunteer computing/cloud platforms.
878 * New model for Vivaldi routing. We transformed the Vivaldi network model
879 into a Vivaldi routing model (based on the rule-based model). This allows to
880 combine Vivaldi based latencies with last-mile platforms.
883 * Added a check for NaN of IEEE754 infinite in the double entries of
885 * Introduce a new context factory "raw", highly inspirated from the
886 ucontext factory, but using manually crafted functions in assembly to
887 do the work in an efficient manner.
888 * Allow to change the used context factory at run time, not only at
889 compilation time. Use --cfg=contexts/factory:raw for maximal speed.
890 * Add an option --cfg=contexts/stacksize:N to set the stack size of the user
891 contexts at runtime (only with raw contexts or ucontexts).
892 * Completely rewrote this module to allow parallel execution of user
893 processes. Use --cfg=contexts/nthreads:N to execute user processes
894 with N parallel threads (the default is 1, meaning no parallelism).
895 * Allow to decide dynamically between sequential and parallel modes.
896 When nthreads > 1, you can use --cfg=contexts/threshold:P to run the user
897 processes in parallel only when their number is greater than or equal to P
899 * Added a check for NaN of IEEE754 infinite in the double entries of
903 * New command line option: if you pass --cfg=verbose-exit:0, SimGrid
904 won't output the state of processes when interrupted with Ctrl-C
905 * Add a new function xbt_dynar_to_array that transforms a dynar into a
906 NULL-terminated array. This may solve backward compatibility issues
907 due to the change to return type of SD_simulate. See also:
908 http://lists.gforge.inria.fr/pipermail/simgrid-user/2010-December/002206.html
909 * Add new macros with variable number of arguments.
910 - in xbt/log.h: XBT_DEBUG, XBT_VERB, XBT_INFO, etc.
911 - in xbt/asserts.h: xbt_assert
912 - in xbt/cunit.h: xbt_test_{add,fail,assert,log}
913 - in xbt/ex.h: THROWF and RETHROWF.
914 Define XBT_USE_DEPRECATED if you want to use the old numbered macros like
916 * Change xbt_die() to accept a format string with arguments, just like printf.
917 * New data structure: xbt_lib_t, like a dict but more general and with better
921 * New configuration options
922 Options triva/categorized and triva/uncategorized can be used to generate
923 graph configuration files for Triva visualization tool.
924 * Configuration option tracing/platform is renamed to tracing/categorized
925 * XBT logging makes tracing error checks easier, new root log hierarchy: instr
926 * New TRACE_user_link_variable interface:
927 User provides the name of the link and the tracing variable to attach to it
928 * the declaration of tracing categories must be done after the environment
930 * simpler tracing interface, just one way to declare categories
931 TRACE_category or TRACE_category_with_color, it is up to you
932 * links in the trace file are again identified by their names
933 * trace contains the full platform hierarchy exactly as declared using the ASes
934 * Options tracing/msg/[task|process]:1 groups the process by hosts
935 for both cases, tasks and processes must have names that are unique during the simulation
936 these options generate traces that are suited to gantt-charts, such as the space-time view of Paje
937 * The experimental option tracing/msg/volume is deprecated
938 its functionality may be reincorporated if needed
940 The tracing generates a trace file with unordered timestamped events,
941 because of the way the core simulator (surf) works. A script available
942 at the tools directory (fix-paje-trace.sh) can be used to put the events
943 in order. We have changed the tracing so it can generate ordered timestamped
944 events in the final trace, but depending on the simulator (and how much time
945 is simulated) that can lead to a huge memory utilization. It is deactivated
946 by default, but it can be activated using the --cfg=tracing/buffer:1 switch.
949 * Define a SIMGRID_VERSION macro in simgrid_config.h.
950 - We are trying hard to keep the API stable, but it may happen that
951 some things change (we're a research project after all, not a
952 nuclear plant operating system). If such things should happen, you
953 could rely on that macro to adapt.
954 - current value: 30600 for 3.06.00, aka 3.6
955 * Define macro MAKE_SIMGRID_VERSION(major, minor, patch) to help building
956 a number that can be compared with SIMGRID_VERSION.
957 * Add a build option -Denable_debug (set to ON by default): when set to OFF,
958 assertions and verbose/debug logging events are disabled at compile time.
960 -- Tue Jun 21 08:57:43 CEST 2011 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
962 SimGrid (3.5) stable; urgency=medium
965 * New feature to any SimGrid-based simulator: Model-Checking
966 Check SIN#1 for more details.
969 * New Model SMPI (three-interval linear regression for correction factors)
970 See RR-7426, available at http://hal.inria.fr/inria-00527150
971 * Ability to use FORTRAN MPI code (through f2c, automatically privatized)
972 * New MPI functions supported: MPI_Get_count(), MPI_Comm_split()
973 * New: RAM folding (see RR-7426 and examples/smpi/NAS/DT-folding)
974 * New: execution sampling (see RR-7426 and examples/smpi/NAS/EP-sampling)
975 * See also src/smpi/README
980 - Tracing API changes: TRACE_start and TRACE_end should not be called
981 by user-code. They are automatically called by simulators created
982 with SimDAG, MSG and SMPI if the toolkit is compiled with
983 tracing_enabled=ON. Categories declaration and utilization remain the
984 same for MSG and SimDag.
985 - A function was added to the tracing API to declare categories with
987 - TRACE_category_with_color (char *category, char *color)
988 where color must be in the following format
989 "%f %f %f", red, green, blue
990 and red, green, blue are float values in the interval [0, 1]
991 - User can specify NULL as color parameter, or continue calling
993 On that case, the tracing system will define random colors
994 - The following command-line options are supported:
995 --cfg=tracing/filename:msg.trace
996 --cfg=tracing:1 (activate tracing, needed to use others)
997 --cfg=tracing/platform:1 (categorized resource use)
998 --cfg=tracing/uncategorized:1 (uncategorized resource use)
999 --cfg=tracing/msg/task:1 (task creation)
1000 --cfg=tracing/msg/process:1 (process creation, migration)
1001 --cfg=tracing/msg/volume:1 (volume of MSG send/recv)
1002 --cfg=tracing/smpi:1 (SMPI interface tracing)
1003 --cfg=tracing/simdag:1 (allow SimDAG tasks receive categories)
1004 - examples of examples/msg/tracing updated
1006 - DAXLoader and DOTLoader functions can generate tasks with categories
1007 - A new function to attribute a category to SD tasks:
1008 TRACE_sd_set_task_category (SD_task_t task, char *category)
1009 * Tracing the MPI interface implemented by SMPI
1010 - Collective operations are traced with states
1011 - Point-to-Point operations are traced with states/links
1012 - Tracing activated by a parameter "-trace filename" passed
1013 to smpirun during execution (considering that simgrid
1014 is compiled with tracing enabled)
1015 - To run the simulation with gdb, the simulator
1016 accepts --cfg=tracing/smpi:1 to trace SMPI
1017 - tesh files to check if smpi tracing is ok
1018 - See examples/smpi/NAS/DT-trace
1019 * GTNetS tracing re-worked
1020 - adaptation to the tracing system of GTNets to cope
1021 with modifications regarding the fullduplex mode
1022 - new tesh files to check if gtnets tracing is ok
1025 * Asynchronous communications through the functions:
1026 MSG_task_isend/irecv and MSG_comm_test/wait/waitall
1027 * New function: MSG_load_platform_script()
1028 to make possible using a lua script instead of XML files to set up platforms
1029 * New function: MSG_set_function
1030 to associate functions to processes, used when bypassing the parser
1031 * New functions: MSG_task_set_name(), MSG_task_set_compute_duration()
1033 Platforms: Add some more examples in examples/platforms
1034 * Grid'5000: see www.grid5000.fr
1035 * *_30000_hosts.xml: various huge files [mainly scalability testing]
1038 * Change the XML format. This is a very important modification. SimGrid
1039 3.5 introduces a new hierarchical format based on the notion of
1040 Autonomous Systems. Compatibility with old format is ensured
1041 through the perl script provided in the install bin directory
1042 bin/simgrid_update_xml.
1043 It is now possible to build platforms with specific routing
1044 mechanism (Full/Dijkstra/DijkstraCache/Floyd) and to easily
1045 connect several platforms together. We will try to provide soon
1046 set of realistic platforms exploiting these properties (have a
1047 look at examples/platforms/ for the moment).
1048 * Take the opportunity of the XML format change to be a good XML citizen:
1049 rename link:ctn to link_ctn and similar changes (also dealt with by
1051 * Add a new routing scheme (rule-based) using regular expressions. It
1052 enables to have an extremely low memory footprint when the
1053 underlying routing is simple and can be compactly described. You
1054 need to have libpcre4-dev (perl regular expressions) installed if
1055 you want to use this routing scheme.
1056 * Revive the cluster TAG and allow to easily and efficiently (both in
1057 term of memory and speed) connect clusters together. Have a look
1058 at teshsuite/simdag/platforms/ to see how this can be done. With
1059 this tag, you can create clusters with thousands of tasks at no
1060 cost (have a look at examples/platforms/).
1061 Note: clusters are implemented as ASes, so there is no need for an
1062 enclosing AS tag if you have only one cluster in your platform.
1063 * Add new generic functions in the public interface that allows the user
1064 to call SURF 'create_resource' methods from your code (same
1065 functionality as the XML bypass mechanism but with a much lighter
1067 * Add a new model (enabled through command line --cfg=network/model:SMPI)
1068 that uses a piecewise linear approximation to produce better
1069 results when exchanging small messages.
1070 * Add a new parameter to handle correctly full duplex link and account
1071 for interferences between uplink and downlink communications
1072 (activate with --cfg=fullduplex:1).
1075 * Rename the SD_READY (all dependencies are satisfied and task is
1076 scheduled) state in SD_RUNNABLE and define a new SD_SCHEDULABLE (all
1077 dependencies are satisfied) state.
1078 This prevents a confusion between the notion of "ready to schedule"
1079 (SD_SCHEDULABLE) used in DAG scheduling and that of "ready to be
1080 simulated" (SD_RUNNABLE) used by the simulation kernel.
1081 * Change the way a task is considered as ready. Instead of removing
1082 dependencies when a task is done, a counter is decreased. This way,
1083 it is always possible to reach ancestors thanks to the
1084 SD_taks_get_parents function (even after the end of the simulation.)
1085 * Change the return type of SD_Simulate from (SD_task_t*) into
1086 xbt_dynar_t. This function was in handling a dynar internally and
1087 converted it into a NULL terminated array for historical reasons.
1088 * New function SD_dotload(char*) to load a DAG described in dot
1089 format. This loader and the corresponding examples require the
1090 installation of the graphviz library.
1091 * Fix a bug in the management of tasks of size 0 in the surf network
1092 models. This problem was only visible with SIMDAG and you should
1093 thus disregard results produced with earlier versions if you
1094 relied on this feature (some tasks were blocked because of this).
1095 * Fix a bunch of stuff that prevented to use classical models with SIMDAG
1096 even though your applications were doing only point-to-point
1097 communications and sequential computations. Now you can really use any
1098 model you want (of course, if you create real parallel tasks, which are
1099 not implemented in most models beside ptaskL07, this will abort).
1100 * Add an example that schedules a DAX on an heterogeneous platform
1101 using a Min-Min strategy.
1102 * New function SD_workstation_get_current_task() that returns the kind
1103 of task currently running on a workstation in the sequential access
1105 * Raise some warnings when unexecuted tasks remains at the end of the
1106 simulation. This is usually caused by cycles in the DAG.
1109 * New function: SIMIX_process_set_function() called by MSG_set_function
1110 * Change the underlying waiting queue in semaphores so that a process
1111 can wait on several of them simultaneously (as in waitany).
1112 * Fix the way to handle tokens in semaphores so that all access patterns
1113 work: {acquire, acquire_timeout, waitany} / {release, release_forever}.
1114 * kill the dirty pimple SIMIX_message_sizes_output()
1115 Please use (proper) visualization instead
1118 * New data container: setset (set of sets of elements)
1119 * New module: mmalloc (mapped malloc, allowing to have several
1120 independent segments of malloc)
1121 * New function: xbt_dict_cursor_set_data()
1122 * New functions: xbt_dynar_sort(), xbt_dynar_compare()
1123 * New function: xbt_dynar_is_empty()
1124 * New function: xbt_fifo_get_last_item()
1125 * Fix xbt_dynar_shrink(): use the right element size.
1126 * Fix xbt_dynar_set*(): allow index larger than current size and memset 0
1127 uninitialized areas during expand.
1128 * Fix semaphores: previous implementation was severely broken.
1129 * Use library init/fini functions for our initialization.
1130 - you can use logs and other feature as soon as you want in your
1131 code (even before the xbt_init / MSG_init)
1132 - xbt_exit is now a no-op and produce a warning when used.
1135 * Port GRAS to new SIMIX mechanisms. This allows gras users to
1136 benefit from the latest improvement to the simulation kernel.
1137 * Kill measurement sockets for now. If you rely on them, sorry. This
1138 release is not for you. This feature will be reintroduced in the
1139 future, but we cannot delay the release any further.
1140 * New function: gras_msgtype_get_name().
1141 * Implement gras_agent_spawn in RL too (the prototype changed a bit)
1142 * Fix (at last) the pmm example: it should not randomly fail anymore.
1144 Build chain: bug fixes and overall polishing
1145 * Cmake is now stable enough. Hence, we killed the autotools.
1146 * Port to windows ( TM :)
1147 * Fix the 'make install' target.
1148 No need to use 'make install-simgrid' anymore
1149 * Introduce a 'make dist' target compiling a *source* archive
1150 'make package' compiles a binary archive
1151 * Compile java files only on need
1152 * Add --cd and --setenv command line options to tesh
1153 * Out of source builds are not fully supported yet, but we are close
1154 * Enable supernovae and optimization flags by default for our users
1157 * Add layer to set up environment directly from lua, without XML.
1158 * The effect of gras_stub_generator can be achieved through
1159 lua too (check examples/gras/console/ping_generator.lua)
1161 -- Wed, 01 Dec 2010 22:09:23 +0100 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
1163 SimGrid (3.4.1) stable; urgency=low
1165 The "Polishing easter eggs is probably a good idea" release.
1166 This is a bug fixes release only.
1170 * Fix a bug preventing the tasks from begin garbage collected.
1173 * Fix a bug occuring when a host involved in a communication fails.
1174 This was not detected properly by the other peer involved in the
1175 communication. Now, it's reported as a network error.
1178 * Warn the user about loop dependencies in data flow of DAX files
1179 * Obey the control-flow dependencies of DAX files
1182 * Add option "enable_smpi" allowing to not compile SMPI.
1183 Probably useful for the (Mac) users experiencing a build error here
1184 * Improve the detection of lua5.1 and ruby1.8
1186 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Tus, 04 May 2010 28 16:11:16 +0100
1188 SimGrid (3.4) stable; urgency=low
1190 The "Easter in Cargese" release. Also known as (major changes):
1192 * the "se habla Java, Ruby 話せます, fala-se Lua (and deaf-friendly)"
1193 ~> bindings were greatly improved
1194 ~> new tracing infrastructure for better visualization introduced
1196 * the "Welcome to configury modernity" release.
1197 ~> we switched from autotools to cmake, and improved our cdash
1200 A more detailled list of changes follow (full detail in svn log).
1202 Java Bindings: Various Cleanups
1203 * (install java-gcj-compat-dev on debian-like to use them)
1204 * Remove put/get: no need to export deprecated interface in Java
1205 Use send/receive instead.
1206 * Cleanup the examples and add a README per directory
1207 * Remove example autoDestination (that's the only way to go now)
1208 * Remove example explicitDestination (was a plain copy of basic)
1209 * Make JniException a runtime exception, so that there is no need to
1210 declare the fact that you may encounter such a beast. I guess that
1211 nobody will ever want to survive such error.
1212 * Create specific errors for each MSG case of failure:
1213 host failure, transfer failure, timeout, task cancelled
1214 * Cleanup the exceptions that may get thrown by each function
1215 * Other internal cleanups in Java bindings. Performance still bad :/
1216 Ruby and Lua Bindings: create them
1217 * (install ruby1.8-dev/liblua5.1-0-dev on debian-like to use them)
1218 * That's new and great, you should try them out.
1219 Same functionalities than Java bindings, only even less polished
1221 * Kill the useless "rate" argument of SD_task_get_execution_time()
1222 Everyone used to provide -1 as a value, it was not used, and the
1223 semantic of a possible use wasn't even clear.
1224 * SD_SCHED_NO_COST: Constant to use as cost in SD_task_schedule()
1225 either as comm costs or compute costs to mean that there is no
1226 such thing for that specific task.
1227 * Add a SD_task_set_name() function
1228 * Fix SD_task_unschedule() on typed tasks
1229 * Fix SD_task_get_execution_time() to return seconds, not flop*sec
1230 * In DAX loader, accept useless 'level' attributes to <job> since
1231 LIGO DAGs have them (seem to be to ease graphical representation).
1233 * Add an example masterslave_mailbox.c using send/receive and not
1234 the deprecated put/get interface.
1235 * Kill the MSG_paje_output() function. It's a noop since 2 years.
1236 * Kill MSG_WARNING and MSG_FATAL return codes: they were not used
1238 * Rename MSG_TIMEOUT_FAILURE into MSG_TIMEOUT for sake of logic
1239 (declare MSG_USE_DEPRECATED to still have the old name)
1240 * Add a MSG_task_set_data() function
1241 * About trace replay (see examples/msg/actions):
1243 - Allow to work with splitted trace files for each process
1244 Give the specific trace file as argument of each process,
1245 and call MSG_action_trace_run(NULL)
1246 You can still have one merged file for all processes.
1247 - Fix implementation of collective operations
1248 * Allow task_execute() on 0-sized tasks (closes #10063)
1250 * This is the first release of SimGrid where SMPI is not considered
1251 beta anymore (even if some corners should still be improved)
1252 * Port over the new SIMIX_network submodule (internal refactoring)
1253 * Basic support to log events as with SMPE (use --cfg=SMPE:1)
1254 * Implement more missing elements of the standard:
1256 - MPI_MAXLOC MPI_MINLOC + all associated datatype MPI_DOUBLE_INT,
1258 - MPI_Address() MPI_Get_count() MPI_Type_free() MPI_Type_extent()
1259 MPI_Scan() MPI_Get_processor_name()
1260 - Added implementation of missing case for Alltoall (warning: it's
1261 *not* the bruck variant from OpenMPI; based on Alltoallv instead)
1262 - SMPI_MPI_Gather() SMPI_MPI_Gatherv() SMPI_MPI_Scatterv()
1263 SMPI_MPI_Reduce_scatter() SMPI_MPI_Allgather()
1264 SMPI_MPI_Allgatherv()
1265 * Bug fixes include:
1266 - MPI_Waitsome() was broken
1267 - Allow relative includes in smpicc
1268 - Command line cfg argument 'reference_speed' was ignored...
1269 - Some functions did not properly lead to auto-benching of user code
1270 - smpicc passes -O2 by default (just like openmpi one)
1272 * add SIMIX_action_suspend() and SIMIX_action_resume() functions
1273 * Bug fixes about timeouts during communications
1274 * add SIMIX_message_sizes_output() as a pimple to write to file the
1275 amount of messages per size. Use gnuplot to get histogram.
1276 Pimple because that's the only user-visible function of simix,
1277 defined directly in xbt.h (irk, sorry)
1279 - Add a SIMIX_sem_get_capacity() function
1280 - Fix interactions with processe resume/suspende
1281 - release_forever() was stupidly broken
1282 - Fix SIMIX_display_process_status() for processes in a semaphore
1283 - Make SIMIX_sem_block_onto() user-visible
1284 * Refactoring context stuff:
1285 - Use pseudo-OOP for better modularity
1286 - reimplement SIMIX_process_kill() without process_schedule() so
1287 that the latter can take as invariant that it is called from
1289 - Merge context_start into context_new for sake of simplicity
1291 * Add a Vivaldi network model, coded live during SUD'10 ;)
1292 * Rename configuration variables to start a hierarchy:
1293 o cpu_model -> cpu/model
1294 o network_model -> network/model
1295 o workstation_model -> workstation/model
1296 * New configuration variables:
1297 o network/bandwidth_factor: correction to bandwith
1298 o network/latency_factor: correction to latency
1299 o netwotk/weight_S: correction to the weight of competing streams
1300 * Add a long description to the models, that users can see with such
1301 argument on the command line: --cfg=cpu/model:help
1302 * --help-models display the long description of all known models
1304 * config: add the ability to set a default value after registration
1305 Does not override any previously set value (e.g. from cmd line)
1306 * dict: allow to have integer key and data.
1307 When so, you need to use the following functions
1308 void xbt_dicti_set(xbt_dict_t dict, uintptr_t key, uintptr_t data);
1309 uintptr_t xbt_dicti_get(xbt_dict_t dict, uintptr_t key);
1310 void xbt_dicti_remove(xbt_dict_t dict, uintptr_t key);
1311 In contrary to regular dicts, the key is not malloced before copy.
1312 Mixing scalar and regular elements in the same dict is not tested
1314 * Allow to use xbt_dynar_shrink() to expend the dynar instead
1315 Tracing for Visualization:
1316 * SimGrid is now instrumented in order to generate a trace file for
1317 visualization analysis: to use it, need to compile SimGrid with the
1318 "tracing" option enabled, and instrument the program using SimGrid with
1319 TRACE_start, TRACE_category, TRACE_msg_set_task_category and TRACE_end
1320 (among other functions).
1321 * The instrumentation only traces the platform utilization for now
1322 * Documentation to use the tracing functions and how to analyze the
1323 traces with the Triva tool is written.
1324 * More information about: SimGrid FAQ (in the section Tracing Simulations
1327 * We moved to cmake as default build system. Autotools support will
1328 be dropped soon. Check the FAQ for more info about how to use it.
1329 * Greatly improved our cdash/ctest interactions
1330 Check http://cdash.inria.fr/CDash/index.php?project=Simgrid
1331 * Added memory checking tests with valgrind; lot of memleak fixing.
1332 This may be the first release of simgrid with so few memory issues
1333 * Added code coverage tests.
1334 Our coverage is still improvable, but at least we see it on cdash.
1336 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Wed, 28 Apr 2010 28 17:11:16 +0100
1338 SimGrid (3.3.4) stable; urgency=low
1340 The "Desktop Grid needs love too" release (also called Xmas release).
1342 Models improvements:
1343 * Major speedup in the maxmin system solving by using lazy evaluation
1344 Instead of solving completely the maxmin system at each iteration,
1345 only invalidate (and recompute) the modified parts.
1346 This new feature is enabled in default models but you can try to
1347 turn it on with "--cfg:maxmin-selective-update=1" for other models.
1348 * Cas01 IMproved as default CPU model
1349 This CPU model is the same Cas01 model, but it uses the
1350 maxmin-selective-update flag and a heap structure to manage
1351 actions on SURF kernel.
1352 It reduces the complexity to find the next action to finish and,
1353 consequently, it's faster than the old Cas01.
1354 This is the new default CPU model (Cas01).
1355 * Rename the old Cas01 model to Cas01_fullupdate
1356 Keep the old cpu model Cas01 with the new name of Cas01_fullupdate.
1357 Use "--cfg=cpu_model:Cas01_fullupdate" to use the old default CPU model.
1358 * CpuTI (CPU Trace Integration)
1359 A new CPU model whose objective is simulate faster when using
1360 availability trace files.
1361 Instead of using a full featured, over engineered maxmin system for
1362 CPU modeling, this model does the pre-integration of traces files
1363 to calculate the amount of CPU power available, and so, executes
1364 faster than the old CPU models.
1365 Use "--cfg=cpu_model:CpuTI" to change to this CPU model.
1366 * Use LV08 as default network model since it gives better accuracy
1367 for small messages and shouldn't change things for big ones.
1368 Use --cfg=network_model:CM02 to get the previous behavior.
1371 ******************************************
1372 *DO NOT MIX 3.3.4 RESULTS WITH OLDER ONES*
1373 ******************************************
1374 * The new CPU model may changes simulations!
1375 The point is that events occurring at the exact same timestamp
1376 are not scheduled in the same order with the old and new
1377 version. This may be enough to completely change the execution
1378 of simulations in some cases.
1379 * The new network model will change simulations!
1380 This new model is more realistic than the previous one, so you
1381 should consider redoing your old experiments with this model.
1382 Sorry for the inconvenience.
1385 * Introduce the supernovae compilation mode
1386 When compiled that way, the whole SimGrid (or almost) is put in a
1387 single compilation unit and compiled in one shoot.
1388 This is to help gcc which has difficulties to inline stuff from one
1390 The speedup seem to be above 15%, althrough more tests are needed on
1391 amd64 to confirm that gain.
1394 * Port of MSG's mailbox on top of SIMIX network
1395 The put/get mechanism was greatly simplified on the way.
1398 * New SIMIX network module. Provides:
1399 - Mailbox: rendez-vous mecanism to find with who you want to speak
1400 - Synchronous send/recv: easier and hopefully faster since the
1401 logic is handled in the maestro process directly now
1402 - Asynchronous send/recv: you dreamt of it? It's here now
1403 Too bad that nobody cared enough to propagate the change to MSG.
1404 * Add semaphores as SIMIX synchronization mechanism.
1407 * new function SD_daxload(char*) to load a DAX file
1408 (see http://vtcpc.isi.edu/pegasus/index.php/WorkflowGenerator)
1409 * Introduce typed tasks. Specify its kind and cost at creation.
1410 At scheduling, just give where it should be placed, and the cost
1411 for each involved resource is automatically computed.
1412 Existing constructors so far (more to come of course):
1413 - SD_task_create_comm_e2e() for end-to-end communication
1414 - SD_task_create_comp_seq() for sequential computation
1415 Use SD_task_schedulev() / SD_task_schedulel() to schedule them.
1416 * new function SD_task_dump() for debuging display
1417 * new function SD_task_dotty(task,FILE*) writing to file the info
1418 about the task in dotty format
1419 * SD_task_dependency_exists() can now cope with having one of its
1420 arguments NULL. If so, it tests whether the other argument has any
1422 * Add getters on list of preceding/following tasks:
1423 SD_task_get_parents(task) and SD_task_get_children(task)
1424 * Add getters on amount of workstations and list:
1425 SD_task_get_workstation_count(t) and SD_task_get_workstation_list(t)
1426 * Add getter on task kind: SD_task_get_kind(task)
1427 * Update the start_time and finish_time of tasks on completion/failure
1428 * Bugfix: Remove task from state swags when destroyed
1431 * New function: void gras_cpu_burn(double flops) -- a simple CPU burner
1434 * New function: xbt_dynar_dopar(dynar,fun) to map a function over the
1435 dynar with one separate thread per value of the dynar.
1436 * Change the prototype of xbt_thread_create(), sorry.
1437 Added a boolean parameter indicating whether we want to join this
1438 thread (used in SG only for now)
1439 * Implement xbt_thread_join and xbt_thread_yield in SG also.
1442 * GTNetS wrappers should now be usable again (and betterly tested too)
1443 * Fix a major regression from 3.2 where the timeout provided to
1444 MSG_task_put_with_timeout() was used as absolute time before which
1445 the comm should be done.
1446 * Start to fix the <cluster> tag.
1447 - Internal links should be good now (beside of the loopback, which
1448 use the private link instead)
1449 - paths to the external world is still rather broken
1450 - the <route:multi> tag is just broken. Actually that's brain-dead.
1451 We need sth like <route:multi src="myCluster" dst="$*-${myCluster}">
1452 to make it less stupid
1453 ** Check your platform with teshsuite/simdag/platforms/flatifier **
1454 * Fix a source-level compatibility glitch from 3.2: after defining
1455 MSG_USE_DEPRECATED, you can use the old name
1456 MSG_task_put_with_time_out() for MSG_task_put_with_timeout()
1457 * Allow to compile from the SVN with automake 1.11
1458 * Fix some problems when using the "start_time" tag in deployment XMLs.
1459 * Fix #8569: XBT/synchro.h has redundant declarations
1460 * Fix #8563: MSG return values and exceptions
1461 Introduce a MSG_TIMEOUT_FAILURE return code and use it consistently.
1462 * Integrate patch #8636: Obey DESTDIR when installing documentation.
1463 Thanks to Robson Peixoto.
1464 * Fix a vicious bug in dictionaries inducing that some elements were
1465 not freed on xbt_dict_free()
1467 Portability report of this version:
1468 * Main portability targets:
1469 - linux (ubuntu (804/810/910) /debian (4/5/testing) /fedora (core11))
1470 on (amd64/i386/ia64)
1471 - mac leopard on i386
1472 Known problems: http://cdash.inria.fr/CDash/index.php?project=Simgrid
1473 but nothing critical.
1474 * Other platforms: windows, AIX and others were not tested for this release
1476 Timing report of this version:
1477 * Lazy evaluation brings arbitrary speedup (ie, speedup depending on
1478 scenario parameters). From 8h to a few seconds in desktop grid settings.
1479 * Supernovae brings about 25% speedup on i386.
1481 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Thu, 24 Dec 2009 19:07:39 +0100
1483 SimGrid (3.3.3) stable; urgency=low
1485 The "Need for Speed" release.
1487 The timings done to validate the 3.3.2 were faulty.
1488 Instead of being 5% faster, it was 15% slower (compared to 3.3.1).
1490 The problem was a conversion from a manually handled vector to
1491 xbt_dynar_t on the critical path.
1492 xbt_dynar_foreach calls functions, inducing stack management crap.
1494 We inlined these functions and xbt_dynar_foreach is now breath taking.
1495 We also inlined xbt_swag_belong on the way.
1497 Here are some approximate speedup measurements (on master/slaves
1498 simulations lasting between 10s and 20s each):
1499 3.3.1 -> 3.3.2: about same performance
1500 3.3.2 -> 3.3.3: 40% speedup
1501 3.3.1 -> 3.3.3: 40% speedup
1502 3.3.1 with inline patch -> 3.3.3: 30% speedup
1504 Our reading is that the refactoring which occurred in 3.3.2 made us
1505 suffer much more from the xbt_dynar_foreach low performance, but
1506 once we solved this, this refactoring proved to be very performance
1507 effective. From the 40% speedup, somehow, 10% are due to the
1508 inlining and 30% to the refactoring.
1510 That's a pitty that gcc cannot inline functions placed in other files
1511 alone. We have to choose between:
1512 - break the encapsulation (by putting private data structures and
1513 accessors in headers files to help gcc)
1514 - live with low performance
1515 - switch to a decent compiler such as icc (not quite possible).
1517 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Thu, 20 Aug 2009 21:21:33 +0200
1519 SimGrid (3.3.2) stable; urgency=low
1521 The "Simplicity does not preceed complexity, but follows it" release.
1523 The main contributors of this release were (lexical order):
1524 Silas De Munck, Stéphane Genaud, Martin Quinson, Cristian Rosa.
1527 * Extract the routing logic into its own object.
1528 (was dupplicated in network.c and workstation_LV07.c;
1529 Allows to implement other ways of storing that info)
1530 => kill now useless network_card concept
1531 - Use dynar to represent routes (instead of void** + int*)
1532 - kill link_set (use surf_network_model->resource_set instead)
1533 - Add a command-line option to choose the routing schema to use
1534 - Add three new models:
1535 * Floyd (shortest path computed at initialization)
1536 * Dijikstra (shortest path recomputed all the time)
1537 * Cached Dijikstra (shortest path computed on need)
1538 All these models where contributed by Silas De Munck, and are
1539 described in his ICCS09 paper.
1541 * Simplify model declaration
1542 (less redirections, less function to write when defining a model)
1543 - Factorize stuff between models:
1546 surf_model_resource_set(model)
1547 surf_model_resource_by_name(model, name)
1548 - Unify the types of models in s_surf_model_t (using an union)
1549 - Embeed fields of common_public directly into s_surf_model_t
1550 - Rename model methods:
1551 action_free ~> action_unref
1552 action_change_state ~> action_state_set
1553 action_get_state ~> action_state_get
1554 - Change model methods into functions :
1555 (model)->common_public->action_use ~> surf_action_ref
1557 * Implement a generic resource; use it as ancestor to specific ones
1558 (allows to kill duplicated code in models)
1559 Drawback: timer command don't need no name nor properties;
1560 workstation_CLM03 don't need no properties
1561 (but I guess we can live with those few bytes wasted)
1563 * Improve the action object model
1564 - implement a constructor avoiding dupplicated code about field
1565 initialization in generic_action part.
1567 * Kill the SDP model: it has an external dependency, is deprecated
1568 in flavor of modern lmm models, and didn't compile since a while
1571 * Relocation of the context module from XBT to SIMIX.
1572 (the context were decoupled from the simix processes, duplicating a lot of code)
1573 => a lot of code was factorized
1574 - less overhead is introduced during scheduling
1575 - simpler API for the context factory
1576 - the logic for process creation,destruction and manipulation was simplified
1577 * Simplification of the s_smx_process_t data structure.
1578 => accesing the simix level data associated to a process is faster now,
1579 and the code is a lot more readable.
1582 * Implement some more MPI primitives:
1583 MPI_Bcast, MPI_Waitany, MPI_Waitall, MPI_Reduce, MPI_Allreduce, MPI_Scatter, MPI_Sendrecv, MPI_Alltoall
1584 -implementation: Bcast: flat or 2-ary tree (default),
1585 Barrier: 4-ary tree,
1587 Allreduce: Reduce then Bcast
1588 Alltoall: "basic_linear" if data per proc < 3Kb, "otherwise pairwise".
1589 Not yet implemented: "Bruck" for data per proc < 200b and comm size > 12
1590 Alltoallv: flat tree, like ompi
1592 * Add support for optimized collectives (Bcast is now binomial by default)
1593 * Port smpirun and smpicc to OS X
1596 * Kill SD_link_get_properties: hard to maintain and makes very little sense
1597 Shout out if you used it.
1600 * Display the list of still queued messages in SG mode when existing
1604 * Add xbt_set_get_by_name_or_null() [Silas De Munck]
1605 * Add xbt_graph_node_get_outedges() [Silas De Munck]
1606 * Add xbt_str_from_file(FILE*)
1607 * Add xbt_dict_get_key achieving a linear reverse search
1608 * Remove the context module
1610 Portability report of this version:
1611 * Main portability targets:
1612 - Linux(debian)/x86/context
1613 - Linux(debian)/x86/pthreads
1614 - Linux(debian)/amd64/context
1615 - Linux(debian)/amd64/pthreads
1616 On these, we still have the eratic breakages of gras/pmm and
1617 amok/saturate_sg reported in previous version. We still think
1618 that the tests are the cause of the fault, not the tested code.
1620 - Mac OSX Leopard/x86/context
1621 Still false negative in tesh autotesting.
1622 Smpi still fails, but this time because readlink does not accept -f
1623 Everything seems to work properly beside of that.
1626 - AIX version 5.3 (only tested contexts this time)
1627 Smpi still fails there because mktemp is not installed.
1628 Everything seems to work properly beside of that.
1630 I managed to compile it for the first time, but several breakages.
1631 Won't delay the release for this exotic platform.
1633 * Windows: it's still lagging behind. If you want to help, please
1636 Timing report of this version:
1637 This version seem to be more than 5% faster than 3.3.1 (on linux
1638 64bits with contextes). The gain is less than expected, we are
1639 investigating this for next release.
1641 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Wed, 19 Aug 2009 17:07:12 +0200
1643 SimGrid (3.3.1) stable; urgency=low
1646 * Implement a --cfg-help to show existing configuration variables
1647 * Build chain do not require doxygen in maintainer mode
1650 * fix a bug on struct sizeof computation, which prevented the
1651 exchange of arrays of structs in some conditions
1652 - added a regression test about this in datadesc_usage
1653 * Allow the exchange of 0-long dynamic vectors.
1654 - for that, use -1 as indicator of dynamic size instead of 0
1655 - This implied to change any size from unsigned long to long,
1656 reducing a bit communication abilities, but I guess that with
1657 64bits being quite common, this is more than enough.
1658 - This also induce a protocol change, thus bumping network protocol
1659 version from 0 to 1 (if we have external users, we have to get
1660 clean on that point too ;)
1661 - added two regression tests about this in datadesc_usage
1662 * Be more verbose when propagating local exceptions
1663 This helps debugging.
1664 * Display the status of simulated processes when receiving SIGINT in
1668 * Allow to control the simulation from a trace file.
1669 New functions MSG_action_register() and MSG_action_trace_run()
1670 The first one allows to associate a function execution to each
1671 kind of action while the second one parses a trace file and
1672 triggers the corresponding actions within the system.
1673 For now, only a toy example is provided in examples/msg/actions
1674 * Add an exemple of process migration in examples/msg/migration
1675 * Fix a bug in task exchange which broke MSG_task_get_sender()
1676 Add a teshsuite regression test for that.
1677 [Bug: if MSG_task_get_sender() is called after sender exit,
1679 * Fix a bug which prevented suspend/resume to work properly
1680 * Display the status of simulated processes when receiving SIGINT
1681 This fixes a regression of v3.3. due to the introduction of SIMIX
1682 * Bug fixing in failure management:
1683 - trace could not start by a failure at time 0
1684 - failure during communications were not working
1687 * Add SIMIX_process_set_name() to change the name of the current
1688 process in the log messages.
1689 * Store smx_hosts in a dict since we only retrieve them by name
1690 * Move the configuration infrastructure to surf
1693 * Move the configuration infrastructure to surf
1696 * Massive internal cleanups:
1697 - Store internal structures on processes instead of hosts (allows
1698 to have more than one process per host, in addition of being more
1700 - Cleanup the initialization/finalization process
1701 - Kill a whole bunch of unneeded synchronization:
1702 processes run in exclusive manner within the simulator
1703 - Move queues from global tables to process data fields
1705 - now accept -platform and -hostfile arguments
1706 - Pass the right rank value to processes according to the hostfile
1707 * Compile the examples by default, and use them as regression tests
1708 * Implement MPI_Wtime()
1709 * Change the reference speed to a command line option
1712 * TCP_gamma can now be specified as command line option using
1713 --cfg=TCP_gamma:10000000.0
1714 * Change the --surf-path cmd line option into --cfg=path:
1717 * Also include strbuff from xbt.h public header
1718 * xbt_ex_display(): do not free the exception after displaying
1719 This allows to do more with the given exception afterward.
1720 Users should call xbt_ex_free() themselves.
1724 Portability report of this version:
1725 * Main portability targets:
1726 - Linux(debian)/x86/context
1727 - Linux(debian)/x86/pthreads
1728 - Linux(debian)/amd64/context
1729 - Linux(debian)/amd64/pthreads
1730 These targets fail about 1/10 of times on gras/pmm, but we believe
1731 that this is because of the test, not because of simgrid.
1732 amok/saturate_sg fails even more rarely, and the test may not be
1735 - Mac OSX Leopard/x86/context
1736 The test suite still spits tons of errors because some obscure
1737 force prevents us from removing the temporary directories
1738 arguing that they still contain some metadata I've never heard of.
1739 Smpi fails because seq is not installed.
1740 Everything seems to work properly beside of that.
1743 - AIX version 5.3 (both contexts and pthread)
1744 Smpi still fails there because mktemp is not installed.
1745 XML inclusions seems rosty on AIX.
1747 * Windows: it's still lagging behind. If you want to help, please
1750 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Sat, 27 Jun 2009 00:14:30 +0200
1752 SimGrid (3.3) stable; urgency=high
1756 * JAVA BINDINGS for MSG (you dreamt of them? We made them)
1757 [Malek Cherier & Mt]
1759 * Introduce the SIMIX module: factorize code between MSG and GRAS.
1762 Until now, GRAS were using MSG as an interface to SURF. It was
1763 quite difficult because both interface have several differences
1764 (MSG channels vs GRAS sockets were the most notable point).
1766 This also opens the gate to SMPI (which should occur soon) and speed
1767 up simulations by to 40% (even if it were not the main goal).
1769 **************************************
1770 *DO NOT MIX 3.2 RESULTS WITH 3.3 ONES* Simix may changes simulations!
1771 **************************************
1772 The point is that events occuring at the exact same timestamp are
1773 not scheduled in the same order with the old and new version. This
1774 may be enough to completely change the execution of simulations in
1775 some cases. Sorry for the inconvenience.
1777 * Cleanup and upgrade the XML format to push further scalability
1778 issues (check http://hal.inria.fr/inria-00256883/ for more info)
1780 * Improve the testing infrastructure with tesh. Now a very large part of
1781 the code is tested not only by being run but also by checking that the
1782 output match an expected output [Mt].
1784 * Move on to FleXML v1.7 for the embeeded XML parsers. This version
1785 is really less memory-demanding, which should allow you to use
1786 larger files in SimGrid [AL].
1788 * Inform valgrind about our contextes, so that it becomes usable
1789 with the default (and more effecient) version of SimGrid
1790 [contributed by Sékou Diakite, many thanks]
1793 * Introduce a listener thread in charge of receiving incoming
1794 messages from the network. It allows to overlap communication and
1795 computation but most notably, it removes some stupid deadlocks due
1796 to the fact that so far, a process could not send and receive at
1797 the same time. This made most non trivial communication schema
1799 * Convert the PIDs from long int to int to match the MSG ones (and
1800 linux ones too) [Mt]
1801 * New function: gras_agent_spawn() to launch a new process on
1802 current host. Only working in simulation for now. [Mt]
1803 * New function: gras_os_hostport() returning a constant form (ie,
1804 not needing to be freed) of "gras_os_hostname():gras_os_myport()"
1807 * Make the backtrace of exceptions more human readable [Mt]
1808 * New module: xbt/str [Mt]
1809 a ton of string utility functions (split, join, printf to a newly
1810 allocated buffer, trim, etc)
1811 * New module: xbt/hash [Mt]
1812 SHA1 hashing algorithm (more to come if needed)
1813 * New module: xbt/synchro [Mt]
1814 synchronization tools (mutex and conditions) working the same way
1815 in simulation and in real life (mainly useful for GRAS, but not
1817 * New module: xbt/queue [Mt]
1818 classical producer/consumer synchronization scheme
1819 * xbt_dynar_new_sync() creates a synchronized dynar. All access
1820 (using the classical functions will get serialized) [Mt]
1821 * Make dictionary internal table dynamic. No need to specify its size
1822 anymore; functions xbt_dict_new_ext() and xbt_dict_hashsize_set()
1824 * Make sure the log channels are organized as a tree under windows
1825 (because of ANSI C compatibility issue, any channel were child of
1826 root directly) [Mt].
1829 * Cleaned many thing in surf and fixed a few bugs [AL].
1830 * Add a nice command line configuration mechanism to compose models [AL].
1831 * Add a new model for parallel tasks (ptask_L07) that is less buggy than
1832 the previous one (KCCFLN05). It relies on something that looks like
1833 a max-min sharing mechanism but cannot be written as such. A new solver
1834 was thus designed [AL].
1835 * Add a new solver to lmm. Based on Lagrange optimization and
1836 gradient-based descent, it enables to efficiently maximise systems s.a
1838 sum f_i(x_i) s.t Ax<= b with A_{i,j}>=0 and f_i a concave function.
1840 This solver enables to propose two new network models for TCP Reno and
1841 TCP Vegas based on Low's work. These models still need to be fully
1842 tested though [Pedro Velho].
1845 * Bug fix in SD_simulate. Now the time bound given as argument is
1847 * Use the new parallel task model (ptask_L07) as default.
1848 * Use the SURF command line configuration mechanism.
1849 * 0-size tasks (for synchronization) should now work.
1851 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Sun Apr 12 05:20:36 CEST 2009
1853 SimGrid (3.2) stable; urgency=high
1857 We still experience issues on this platform, but we believe that at
1858 least MSG is usable.
1860 GRAS API BREAKAGE (for simplification purpose, sorry):
1861 * the gras_msgtype_by_name is not used anymore. Instead of
1862 gras_msg_send(toserver, gras_msgtype_by_name("request"), &request);
1863 you can write (and must)
1864 gras_msg_send(toserver, "request", &request);
1865 - If you still want to pass a gras_msgtype_t to the function (to cache
1866 the type and avoid the lookup time), use the gras_msg_send_() variant.
1867 - Impacted functions:
1868 gras_cb_register, gras_cb_unregister, gras_msg_send, gras_msg_wait,
1869 gras_msg_rpccall, gras_msg_rpc_async_call, gras_msg_wait_ext
1870 * The callbacks are now expected to return 0 when everything went well
1871 (just like the main() function)
1873 GRAS new features and improvements:
1874 * New module mecanism where user code can use per process globals [Mt]
1875 This is similar to gras_userdata_*() functions, but for libraries. It
1876 factorize some code developped over and over in the examples and AMOK.
1877 It has still to be documented and used (only amok/peermanagement is
1879 * Fix a vicious bug in the TCP buffering mecanism which leaded to message
1880 loss when they were small enough to fit into the buffer and sent quickly
1881 enough so that they can all get received in one shoot.
1882 * gras_datadesc_by_name and gras_msgtype_by_name: now raise an exception
1883 if not found. Use the *_or_null() variant for the old semantic.
1884 * In gras_msg_handle, do not discard messages without callback.
1885 They are probably messages to be explicitly awaited later (ie, proofs of
1886 mis-synchronization in userland since they are sent before being awaited)
1887 No big deal usually.
1888 * gras_socket_meas_send/recv: semantic changed!
1889 The numerical arguments used to be (1) the total amount of data to send
1890 and (2) msg_size. This was changed to (1) msg_size and (2) amount of
1891 messages. This was need for the fool willing to send more than MAXINT
1892 bytes on quite fat pipes.
1895 * Do really rename the hostmanagement module to peermanagement. [Mt]
1896 Ie, rename functions from amok_hm_* to amok_pm_*. This breaks the API,
1897 but this is rather new and this was documented in the module
1898 documentation (poor excuses, I admit)
1899 * Bandwidth measurement semantic changed! This follows the changes to
1900 gras_socket_meas_send/recv explained above.
1903 * A sequential mode has been added to the workstations. When a workstation
1904 is in sequential mode, it can execute only one task, and the other tasks
1905 are waiting in a FIFO. [Christophe Thiery]
1908 * The KCCFLN05 workstation model now handles parallel tasks. It is the
1909 model for SIMDAG. [Christophe Thiery]
1910 * Bug fix in the maxmin solver: Some values were close to 0 instead of
1911 equal to 0, which caused some bad behaviors in
1912 saturated_constraint_set_update. I now use a threshold mechanism like in
1916 * When running manually src/testall, you select specific units [Mt]
1917 testall is the result of our cunit mecanism, and should replace all
1918 the scripty thingy around since bash don't run easily on billware.
1920 * A mallocator system has been added. [Christophe Thiery]
1921 Mallocators allow you to recycle your unused objects instead of freeing them
1922 and allocating new ones.
1924 Documentation update:
1925 * FAQ reworking + New FAQs:
1926 - "Valgrind spits tons of errors!" [Mt]
1927 - "How to repport bugs" [Mt]
1928 - "Cross-compiling a Windows DLL of SimGrid from Linux" [Mt]
1929 - "What is the difference between MSG, SimDag, and GRAS?" [Mt]
1930 - Communication time measurement within MSG [AL]
1931 - I experience weird communication times when I change the latency [AL]
1932 * GRAS tutorial [Mt]
1934 - an introduction to the framework and to the used communication model
1935 - an initiatic tour introducing the most proheminent features:
1937 . Lesson 0: Installing GRAS
1938 . Lesson 1: Setting up your own project
1939 o Part 2: Message passing
1940 . Lesson 2: Exchanging simple messages
1941 . Lesson 3: Passing arguments to the processes (in SG)
1942 . Lesson 4: Attaching callbacks to messages
1943 . Lesson 5: Using globals in processes
1944 . Lesson 6: Logging informations properly
1945 . Lesson 7: Using internal timers
1946 . Lesson 8: Handling errors through exceptions
1947 . Lesson 9: Exchanging simple data
1948 . Lesson 10: Remote Procedure Calling (RPC)
1949 . Lesson 11: Explicitely waiting for messages
1950 . Recapping of message passing features in GRAS
1951 - A HOWTO section containing:
1952 o HOWTO design a GRAS application
1953 More are due, of course. They will come latter. In the meanwhile, you can
1954 check the examples which are still here.
1956 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri Mar 16 21:11:46 CET 2007
1958 SimGrid (3.1) stable; urgency=high
1962 There was a stack corruption somewhere, visible only when optimizing
1963 with these versions. [Vince]
1966 * This is a NEW module! SimDAG (SD for short) is a revival of the old SG
1967 module that enabled to play with Directed Acyclic Graphs. It is built
1968 directly on top of SURF and provides an API rather close to the old
1969 SG. Some old codes using SG are currently under rewrite to check that
1970 all needful functions are provided. [Christophe Thiery]
1973 * Complete rewrite of the KCCFLN05 workstation model. It is now an
1974 extension of the classical CLM03 model that gracefully handles
1975 failures. This is now the default model for MSG and GRAS. It doesn't
1976 handle parallel tasks yet though. [AL]
1977 * Bug fix: Weights were not correctly set in the network part.
1978 WARNING: This may have resulted in incorrect results with simulations
1979 where there are more than one flow on a given link. [AL]
1982 * After a (long ?) discussion on simgrid-devel, we have decided that the
1983 convention we had on units was stupid. That is why it has been decided
1984 to move from (MBits, MFlops, seconds) to (Bits, Flops, seconds).
1985 WARNING : This means that all previous platform files will not work as
1986 such with this version! A warning is issued to ask users to update
1988 A conversion script can be found in the contrib module of the CVS, under
1989 the name contrib/platform_generation/surfxml_update.pl [MQ]
1992 * Bug fix: Processes were started in reverse order, wrt deployment file.
1993 WARNING: if your code relies on this bug, please fix it. [AL]
1994 * Bug fix: Add a test in MSG_task_execute to stop whenever a task is
1995 being executed on two different locations. [AL]
1996 * Bug fix: Failures are now better supported thanks to Derrick's tests
1997 (there was many failure situations I hadn't thought of and that weren't
1998 correctly handled). [AL]
1999 * New function: MSG_host_is_avail indicates you whether a given m_host_t
2003 * New! a real RPC mecanism, as it ought to be since too long. [MQ]
2004 Exception occurring on server-side are propagated back to client (!).
2006 API CHANGE: the callback changed their prototype. Change:
2007 int my_handler(gras_socket_t expeditor, void *payload_data) {
2009 int my_handler(gras_msg_cb_ctx_t ctx , void *payload_data) {
2010 gras_socket_t expeditor=gras_msg_cb_ctx_from(ctx);
2012 * New! function: gras_msg_handleall to deal with all messages arriving
2013 within a given period.
2014 * New! function: gras_socket_server_range to get a server socket in a
2015 range of port numbers (ease to avoid port number conflicts) [MQ]
2016 * New! gras processes display their backtrace when they get a SIGUSR1
2017 or when Ctrl-C is pressed. Use Ctrl-C Ctrl-C to exit.
2018 Sweet to debug RL processes [MQ]
2022 - Do not force experiment sizes to be expressed in kb, or it becomes
2023 impossible to measure the latency this way (needs one byte-long tests)
2024 WARNING: this changes the amok_bw_* function semantic. [MQ]
2025 - Implements the link saturation stuff. [MQ]
2026 * Peer management module:
2027 New! module factorizing code that we wrote over and over [MQ].
2030 * New module: cunit (my jUnit implementation in ansi C) [MQ]
2031 - Test units are placed directly into the library code, they get extracted
2032 automatically and placed into the src/testall binary.
2033 - Convert most of the XBT tests to this system.
2034 * New functions: xbt_dynar_getfirst_as() and xbt_dynar_getlast_as() [MQ]
2035 * XML parsing: rewrote parts of flexml to enable multiple xml parsers to
2036 live in the same C code. This required to change a little bit the API
2037 of surfxml parsing but shouldn't be an issue for end-users. [AL]
2038 * New module: sparse graph structure with basic algorithms (this is work
2039 in progress and the API is not considered to be frozen yet). [AL]
2040 * Display more information on backtraces: source line & function names are
2041 now displayed just like valgrind does (rely on addr2line tool) [MQ]
2042 * New function: xbt_backtrace_display(). Sweet while debuging [MQ]
2043 * Reworked a little bit some #include statements to load only required
2044 headers. Some user code that relied on SimGrid to include stdlib or
2045 stdio may need to include it by themselves. [AL]
2046 * Fixed xbt/log.h. A missing SG_BEGIN_DECL prevented compilation with
2048 * Renamed xbt_host_t into xbt_peer_t since it betterly describes what I
2049 meant. This breaks the API of AMOK and of xbt/config. Sorry about this,
2050 but I guess that almost nobody used those parts. [MQ]
2052 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 14 Jul 2006 01:32:27 +0200
2054 SimGrid (3.0.1) stable; urgency=low
2057 * Unfortunately, I had missed 5 misnamed functions:
2058 xbt_fifo_item_t xbt_fifo_newitem(void);
2059 void xbt_fifo_freeitem(xbt_fifo_item_t);
2060 xbt_fifo_item_t xbt_fifo_getFirstItem(xbt_fifo_t l);
2061 xbt_fifo_item_t xbt_fifo_getNextItem(xbt_fifo_item_t i);
2062 xbt_fifo_item_t xbt_fifo_getPrevItem(xbt_fifo_item_t i);
2063 They're now deprecated. Please use their new versions:
2064 xbt_fifo_item_t xbt_fifo_new_item(void);
2065 void xbt_fifo_free_item(xbt_fifo_item_t);
2066 xbt_fifo_item_t xbt_fifo_get_first_item(xbt_fifo_t l);
2067 xbt_fifo_item_t xbt_fifo_get_next_item(xbt_fifo_item_t i);
2068 xbt_fifo_item_t xbt_fifo_get_prev_item(xbt_fifo_item_t i);
2070 * Bugfix: really disconnect fifo items which are remove_item()ed [AL]
2071 * Documentation: xbt_log module unmercifully reworked [MQ]
2072 * Bugfix: there was a problem with the ending of contexts with
2073 the pthread backend. It caused some weird deadlock or behavior
2074 depending on the pthread implementation. [AL]
2075 * Bugfix: get the exceptions raised in the simulator repport where
2076 and why they come from when they are not catched in time [AL, MQ]
2079 * Bugfix: Do repport the error when two non-connected hosts try to
2080 exchange data (Thanks to Flavien for stumbling into this one) [AL]
2083 * Add additionnal checkings on communications. Assert that two
2084 communicating hosts are connected by a set of links... [AL]
2087 * Add additionnal checkings on channel values in communication [AL]
2088 * New: MSG_task_get_source to see on which host a task was generated [HC]
2089 * New: int MSG_task_probe_from_host(int channel, m_host_t host): returns
2090 the number of tasks waiting to be received on channel and sent
2092 * New: MSG_error_t MSG_task_get_from_host(m_task_t * task, int channel, m_host_t host);
2093 waits for the first task coming from a given host.. [AL]
2095 GRAS new functionnalities: [MQ]
2096 * Enhance the parsing macro to allow the size of multidimentional objects
2097 to be given thru annotations.
2098 * New example (and documentation): Matrix Multiplication a la RPC
2099 (as when I was young!) and fix a bunch of bugs found on the way.
2101 GRAS performance improvements: [MQ]
2103 * Reduce the amount of cbps creation/destruction by making it static to
2104 datadesc_send/recv() and using a (newly created) cbps_reset (based on
2107 * Change libdata to a set so that we can search for stuff by ID (and thus
2108 reduce the insane amount of dict lookups)
2111 * Actually implement gras_datadesc_copy() so that we don't have to mimick
2112 RL communication on top of SG since it's so uneffective.
2113 It may also be used for inter-thread communication in RL, one day.
2114 * Use gras_datadesc_copy() to exchange messages on top of SG
2116 - improve message exchange performance on top of SG
2117 - deprecate transport_plugin_sg.c:gras_trp_sg_chunk_send() & recv()
2118 * Don't exchange on the network the size of the used part of buffer,
2119 instead, specify the possible buffer size to read().
2121 - reduces the amount of read/write calls (one pair per exchange)
2122 - reduces the amount of exchanged data (the size)
2123 - allows to retrieve all arrived data on receiver side, if we don't need
2124 it right now (subsequent read will peek the buffer)
2125 - allows the receiver to proceed with the begining of the stream before
2126 everything is arrived
2127 - make it possible to build an iov transport (using readv/writev)
2129 - take care of the data with non-stable storage (like stacked data),
2131 * If possible, TCP send uses vector I/O (when writev() is here)
2132 - Don't use it for receive since we send data sizes and data on the
2133 same stream, so we wouldn't be able to chain large amount of chunks
2134 before having to flush the stuff to read the size.
2135 * Rework the transport plugin mecanism to simplify it and reduce the
2136 amount of pointer dereferencement when searching for the right function
2139 * I guess that now, we do almost as few system calls as possible while
2140 doing as few data copy as possible.
2142 To improve it further, we could try to send all the sizes first and then
2143 all the data (to use iov on receiving size), but it's only a partial
2144 solution: when you have 2 dimensional data, the sizes of the second
2145 dimension is data of the first dimension, so you need 3 streams.
2147 I'm not sure the potential performance gains justify the coding burden.
2149 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 21 Oct 2005 14:42:20 +0200
2151 SimGrid (3.00) stable; urgency=high
2154 * New! Give the possibility to hijack the surf parser and thus bypass
2155 MSG_create_environment and MSG_launch_application. Have a look at
2156 examples/msg/msg_test_surfxml_bypassed.c to see how it can be done.
2158 -- Arnaud Legrand <simgrid-devel@lists.gforge.inria.fr> Sat, 20 Aug 2005 23:25:25 -0700
2160 SimGrid (2.96) unstable; urgency=low
2165 * New! Exception handling with setjmp or such (code from OSSP ex) [MQ]
2166 This deprecates the xbt_error_t mecanisms.
2167 It modifies (simplifies) all XBT and GRAS API.
2168 MSG API keeps unchanged (exceptions raised by XBT are catched from
2169 within MSG and masked with existing error handling facilities)
2172 * New! Add a FATPIPE model. [AL]
2173 * New! Add a parallel task model. [AL]
2174 * New! Add automatically a loopback interface (in the default
2175 network model) if none was precised.
2178 * Bugfix: MSG_process_resume now works with the current running process.
2180 * New! Add MSG_parallel_task_create and MSG_parallel_task_execute. [AL]
2181 * Modification of MSG_task_get_compute_duration. Once a task has been
2182 processed, the value returned by this function is now equal to 0. [AL]
2183 * New! Add double MSG_task_get_remaining_computation(m_task_t task) and
2184 MSG_error_t MSG_task_cancel(m_task_t task). Add a state
2185 (MSG_TASK_CANCELLED) to MSG_error_t corresponding to the cancelation
2186 of a m_task. For now, MSG_task_cancel only works with computation
2188 * New! Add double MSG_get_host_speed(m_host_t h) that returns the speed
2189 of the processor (in Mflop/s) regardless of the current load on the
2191 * API Change: use proper naming convention for MSG_getClock and
2192 MSG_process_isSuspended: MSG_get_clock and MSG_process_is_suspended.
2194 * New! Add void MSG_task_set_priority(m_task_t task, double priority).
2195 This function changes the priority of a computation task. This priority
2196 doesn't affect the transfer rate. A priority of 2 will make a task
2197 receive two times more cpu power than the other ones. This function
2198 has been added to suit the needs of Nguyen The Loc and hasn't been that
2199 much tested yet. So if it fails, please report it and send me your code.
2201 * API Change: removed all functions and types that were marked "deprecated"
2202 since many months. Renamed MSG_global_init_args to MSG_global_init.
2204 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Mon, 8 Aug 2005 17:58:47 -0700
2206 SimGrid (2.95) unstable; urgency=low
2209 * Steal some nice code to GNU pth to fix context detection and usage [AL]
2210 * Cleanup in the xbt_config API; add configuration callbacks. [MQ]
2211 * Cleanup in the initialization API: the unused "defaultlog" is dead. [MQ]
2214 * Bugfix: Allow absolute paths for platform description files [MQ]
2215 * Bugfix: do free the variables after use. Leads to drastic performance
2217 * Implement max_duration (ie, timeouts) on resources [AL]
2220 * Implement MSG_config to configure MSG at runtime. xbt_cfg test on a real
2222 * Implement MSG_channel_select_from() to help GRAS now that SURF provide
2223 the needed support (timeouts) [AL]
2226 * Implement measurement sockets. You can now get the bandwidth between two
2227 hosts thanks to AMOK (see below). [MQ]
2228 * gras_datadesc_dynar() builds a dynar type descriptor, allowing to send
2229 dynar over the network (yeah) [MQ]
2230 * Real (even if simplistic) implementation of gras_os_myname() on RL [MQ]
2231 * simple/static token-ring example. [Alexandre Colucci and MQ]
2232 * Use MSG_channel_select_from() and remove the *slow* hack we had to put
2233 in place before [MQ]
2236 * Differentiate the types "char[22]" and "unsigned char[22]" in automatic
2237 type parsing. "short" and "long" modifiers were also ignored; other
2238 modifier (such as reference level) are still ignored. [MQ]
2239 * Embeed the buffer size within the buffer itself on SG. [MQ]
2240 That way, send() are atomic and cannot get intermixed anymore (at least
2241 the ones which are less than 100k; bigger messages still have the issue)
2242 * Array size pushed by the field, not by the field type (or each
2243 and every long int will push stuff to the cbps) [MQ]
2244 * use select() to sleep since it allows to portably sleep less than one
2247 GRAS (minor cleanups)
2248 * <project>.Makefile.local (generated from gras_stub_generator) |MQ]:
2251 * Type Callbacks now receive the gras_datadesc_type_t they work on as argument.
2252 * type category 'ignored' killed as it was never used and were difficult
2254 * whether a type can cycle or not is now a flag, leaving room for more
2255 flags (as "ignored", if we feel the need one day ;)
2256 * Rename raw sockets to measurement sockets since "raw" has another
2257 meaning in networking community.
2260 * Advanced Metacomputing Overlay Kit introduction. It is based over GRAS
2261 and offers features not belonging to GRAS but that most applications
2262 need. One day, it may be a set of plugins loadable at runtime.
2263 * New module: bandwidth
2264 bandwidth measurement between arbitrary nodes running this module. [MQ]
2266 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Thu, 30 Jun 2005 16:29:20 -0700
2268 SimGrid (2.94) unstable; urgency=low
2270 The first beta release of SimGrid 3 !
2274 * Update the main page and the FAQ. Adding references to gforge.
2277 * Add a gras_os_getpid function.
2280 * Add MSG_task_get_compute_duration() and MSG_task_get_data_size()
2281 * Extend the logs so that they also print PID, hostname, date, ... if
2283 * Convert the MSG example to the use of xbt_logs instead of PRINT_MESSAGE,
2284 and kill the old version which were in testsuite/
2285 * Rewrite tools/MSG_visualization/colorize.pl for using with logs instead
2289 * Add xbt_os_time(). As the rest of xbt/portability, this is not public
2290 for users. Instead, each programming environment (GRAS, MSG,...) use it
2291 when needed to provide such a feature to users.
2292 Don't shortcut the mecanism or you will also shortcut the virtualization
2293 you need on the simulator.
2297 * Cleanups in configury with regard to compile optimization/warning flags.
2298 Also add -fno-loop-optimize to any powerpc since it's the optimization
2299 killing gcc (< 3.4.0).
2300 * Doxygen cleanups: move MSG examples, kill the second Doxygen phase
2301 needed by MSG examples complications
2302 * Borrow configury beautifications from PHP
2305 * Bugfix: XBT_LOG_NEW_DEFAULT_CATEGORY now compiles without compiler
2306 warning (thanks loris for stumbling into this one).
2307 * Bugfix: stop loading private headers (gras_config.h) from the public
2311 * Change SIMGRID_INSTALL_PATH to GRAS_ROOT in Makefiles generated for user.
2312 * Rename gras_get_my_fqdn to gras_os_myname and implement it in the simulator
2313 RL would imply a DNS resolver, which is *hard* to do in a portable way
2314 (and therefore delayed).
2315 * Implement a real timer mecanism and use it in timing macros. This allows
2316 to avoid rounding errors and get a 0.000005 sec precision in timing
2317 macros. While I was at it, various cleanups:
2318 - allow to declare more than one timed section per file (fix a stupid bug)
2319 - move some private declaration to the right place
2320 - merge conditional execution and timing macros into emulation module
2321 - document the module
2322 - make sure the module cleanups its mess on gras_exit
2323 * Documentation improvements:
2324 - (new) how to compile applications using GRAS
2325 - (new) emulation support (timing macros)
2327 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 13 May 2005 10:49:31 +0200
2329 SimGrid (2.93) unstable; urgency=low
2331 Alpha 4 on the path to SimGrid 3 (aka the "neuf-trois" version)
2334 - Use Paje properly where used. Still to be sanitized properly.
2335 - Portability fix: Add an implementation of the contexts using pthread
2339 - Add xbt_procname(): returns the name of the current process.
2340 Use it to show the current process's name in all logging.
2342 - fix detection of older flex version and the reaction, since we do
2343 depend on modern ones (we use lex_destroy)
2344 - Better separation of SG and RL in the libs: remove all simulation code
2345 from libgras. As a result, this lib is now only 200k when stripped.
2346 Some of the xbt modules may also be duplicated (two sets and such) and
2347 should be cleaned/killed before SG3.
2348 - Insist on using xlC on AIX because of weird problems involving gcc there.
2349 - Cleanup the make remote stuff. This is now done by scripts
2350 tools/graspe-{master,slave} (GRAS Platform Expender). This is still
2351 mainly for our private use, but we're working on changing them to user
2354 - Bugfix: flush the socket on close only if there is some *output*.
2355 - Bugfix: flush idempotent when there's nothing to send (don't send size=0)
2357 - Add MSG_task_get_name. The task names are mainly for debugging purpose,
2360 -- SimGrid team <simgrid2-users@listes.ens-lyon.fr> Fri, 4 Mar 2005 14:32:37 -0800
2362 SimGrid (2.92) unstable; urgency=low
2364 Alpha 3 on the path to SimGrid 3
2368 - New! First try of benchmarking macros.
2369 - New! First try so that gras_stub_generator generate deployment and
2370 remote compilation helpers.
2372 - Bugfix: Initialization fix in msg_test.
2376 - Bugfix: applied patch to lexer so that it doesn't need a huge heap.
2378 - Bugfix: let dicts work with NULL content (_foreach didn't) and cleanups
2380 - API Change: gras_os_sleep to take the amount of seconds as a double.
2381 Accepting an int was error prone since it was the only location where
2382 seconds were coded as such. It leaded to damn rounding errors.
2383 - Bugfix: Hard to belive that timers ever worked before this.
2385 -- SimGrid team <simgrid2-users@listes.ens-lyon.fr> Wed, 23 Feb 2005 22:09:21 +0100
2387 SimGrid (2.91) unstable; urgency=low
2389 Alpha 2 on the path to SimGrid 3
2393 - Bug fix in the lmm_solver.
2395 - New! Interface to Paje (see http://www-id.imag.fr/Logiciels/paje/)
2396 through the function MSG_paje_output.
2397 - New! Introducing two new functions MSG_process_kill() and MSG_process_killall().
2398 - It is possible to bound the rate of a communication in MSG with
2399 MSG_task_put_bounded() (was already in the previous version but I had forgotten
2400 to write it in the changelog).
2401 - Bug fix to let GRAS run on top of MSG until we move it directly on top
2406 - Various cleanups to the autotools stuff
2407 - Begin to move Gras examples to examples/gras/
2408 - Let make distcheck work again (yeah!)
2410 - documentation overhauled using doxygen.
2411 gtk-doc-tools is dead in SimGrid now.
2412 - Automatically extract all existing logging categories, and add the list
2413 to the documentation (long standing one, to say the less)
2415 - Cleanup the known architecture table. Reorder the entries to group what
2416 should be, and use a more consistent naming scheme.
2417 (some of the test dataset are still to be regenerated)
2418 - New! Allow library to register globals on each process just as userdata
2420 This is implemented using a xbt_dict and not a xbt_set, so we loose the
2421 lookup time (for now).
2422 Use it in msg and trp.
2423 This cleans a lot the internals and helps enforcing privacy of the
2424 headers between the gras components.
2425 - New! Add a timer mechanism, not unlike cron(8) and at(1).
2426 - Bugfix: gras_os_time was delirious in RL.
2427 - Bugfix: gras_trp_select/RL don't run into the wall when asked to select
2429 - Reenable GRAS now that it works.
2431 -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 14 Feb 2005 14:02:13 -0800
2433 SimGrid (2.90) unstable; urgency=low
2435 Alpha 1 on the path to SimGrid 3
2437 * It is a long time since the last release of SimGrid. I'm sorry about
2438 that but as I had told you, I was rewriting a lot of things. I apologize
2439 to those who had been reporting bugs to me and that I had not answered.
2440 If your bug is still in the new version, please tell me. Here is a
2441 summary of the main changes.
2443 * REVOLUTION 1: The SimGrid project has merged with the GRAS project
2444 lead by Martin Quinson. As a consequence SimGrid gains a lot in
2445 portability, speed, and a lot more but you'll figure it out later.
2446 SimGrid now comprises 3 different projects : MSG, GRAS and SMPI.
2447 I wanted to release the new MSG as soon as possible and I have
2448 broken GRAS, which is the reason why, for now, only MSG is fully
2449 functional. A laconic description of these projects is available
2450 in the documentation.
2452 * REVOLUTION 2: I have removed SG and I am now using a new simulation
2453 kernel optimized for our needs (called SURF but only the developers
2454 should use it). Hence, MSG is now roughly 30 times faster and I think
2455 that by rewriting a little bit MSG, I could event speed it up a little
2456 bit more. Beside the gain in speed, it is also much easier to encode a
2457 new platform model with SURF than it was with SG. More to come...
2459 * REVOLUTION 3: I have tried to change a little as possible the API of
2460 MSG but a few things really had to disappear. The main differences
2461 with the previous version are :
2462 1) no more m_links_t and the corresponding functions. Platforms are
2463 directly read from a XML description and cannot be hard-coded
2464 anymore. The same format is used for application deployment
2465 description. The new format is described in the documentation.
2466 Have a look in tools/platform_generation. There is a tiny script
2467 that converts from the old platform format to the new one. Concerning
2468 the application deployment format, parsing the old one is tricky.
2469 I think most of you should however be able to convert your files. If
2470 it is really an issue, I can write a C code that does the conversion.
2472 2) the toolbox tbx does not exist anymore. We now have a library
2473 with much more data-structures but without the hash-tables (we have
2474 dictionaries that are much faster).
2476 -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 31 Jan 2005 10:45:53 -0800
2478 *****************************************************************************
2479 * Follows the old GRAS changelog. It does not follow the same syntax, but I *
2480 * don't feel like converting the oldies. (Mt) *
2481 *****************************************************************************
2484 Version 2.90: "the long awaited one"
2485 - Finished rewriting and debugging MSG. Rewrote the documentation.
2486 - disable GRAS for now since it needs to be ported to the newest SG
2489 - Finish the port to windows (using mingw32 for cross-compile)
2492 - Main loop and datastructures of SURF. A cpu resource object is
2493 functional. Surf can thus be used to create cpu's with variable
2494 performance on which you can execute some actions.
2496 2004-11-15 Martin Quinson
2497 - Port to ARM. Simply added the alignment and size descriptions. Should
2498 work, but the ARM machines are so slow that I didn't had the opportunity
2499 to 'make check' over there yet.
2501 2004-11-15 Arnaud Legrand
2502 - Trace manager now written. It uses a heap structure and is therefore
2503 expected to be efficient. It may however be speeded up (particularly
2504 when many events occur at the same date) by using red and black
2505 trees. One day maybe...
2506 - Max-min linear system solver written. It uses a sparse matrix
2507 structure taking advantage of its expected use. Most operations are
2508 O(1) and free/calloc are called as few as possible. The computation of
2509 the minimum could however be improved by using a red and black tree
2512 2004-11-03 Arnaud Legrand
2513 - Rename every gras_* function that was in xbt/ to its xbt_
2515 - Add a heap and a doubly-linked list to xbt
2516 - Added a dichotomy to the dictionaries. make check works as well before
2517 so I assume that the patch is correct. I do not know however if things
2518 run effectively faster than before now. :)
2520 Inclusion of the SimGrid tree in the GRAS one. The archive is renamed to
2521 SimGrid, and the version number is bumped to 2.x
2523 2004-10-29 Martin Quinson
2524 - Introduction of the remote errors.
2525 They are the result of a RMI/RPC on the remote machine.
2526 ErrCodes being scalar values, you can't get the host on which those
2527 errors did happen. Extending the error mechanism as in Gnome is possible.
2528 No idea yet whether it is a good idea.
2530 2004-10-28 Martin Quinson
2531 - Interface revolution: the Starred Structure Eradication.
2532 I used to do typedef struct {} toto_t; and then handle *toto_t.
2533 Arnaud (and Oli) didn't like it, and I surrendered. Now, you have:
2534 - ???_t is a valid type (builded with typedef)
2535 - s_toto_t is a structure (access to fields with .)
2536 - s_toto is a structure needing 'struct' keyword to be used
2537 - e_toto_t is an enum
2538 - toto_t is an 'object' (struct*)
2540 typedef struct s_toto {} s_toto_t, *toto_t;
2541 typedef enum {} e_toto_t;
2542 Moreover, only toto_t (and e_toto_t) are public. The rest (mainly
2543 s_toto_t) is private.
2545 - While I was at it, all gras_<obj>_free() functions want a gras_<obj>_t*
2546 so that it can set the variable to NULL. It was so for dicts and sets,
2547 it changed for dynars.
2549 - Fix a bunch of memleaks in dict_remove
2550 - Fix a bug in sg/server_socket opening: it failed all the time.
2552 2004-10-07 Martin Quinson
2553 - Speed up dynar lookup operation a bit.
2555 gras_dynar_get is dead.
2557 Now, you can choose between gras_dynar_get_cpy (the old gras_dynar_get
2558 but should be avoided for efficiency reasons) and gras_dynar_get_ptr
2559 (which gives you the address of the stored data).
2561 gras_dynar_get_as is an helpful macro which allows you to retrieve a
2562 copy of the data using an affectation to do the job and not a memcpy.
2564 int toto = gras_dynar_get_as(dyn,0,int); rewrites itself to
2565 int toto = *(int*)gras_dynar_get_ptr(dyn,0);
2567 It does not really speedup the dynar test because they are
2568 setting elements all the time (and look them seldom). But the dict does
2569 far more lookup than setting.
2571 So, this brings the dict_crash test from ~33s to ~25s (200000 elms).
2573 2004-10-05 Martin Quinson
2574 - Allow to (en/dis)able the cycle detection at run time.
2576 Whether we should check for cycle or not is now a property of each
2577 datatype. When you think there may be some cycle, use datadesc_cycle_set.
2578 datadesc_cycle_unset allow to remove this property when previously set.
2580 Note that the cycle detection is off by default since it impacts the
2581 performance. Watch the data you feed GRAS with ;)
2583 This property is hereditary. Any element embedded in a structure having it
2584 set have it set for the time of this data exchange.
2586 You should set it both on sender and receiver side. If you don't set it on
2587 sender side, it will enter an endless loop. If you forget on receiver
2588 side, the cycles won't be recreated after communication.
2590 - Header reorganization.
2591 Kill gras_private.h, each submodule must load the headers it needs.
2593 2004-10-04 Martin Quinson
2594 - Interface revolution: do not try to survive to malloc failure.
2596 Now, gras_malloc and friends call gras_abort() on failure.
2597 As a conclusion, malloc_error is not a valid error anymore, and all
2598 functions for which it was the only gras_error_t return value are
2599 changed. They now return void, or there result directly.
2600 This simplify the API a lot.
2602 2004-09-29 Martin Quinson
2603 - Re-enable raw sockets.
2604 Created by gras_socket_{client,server}_ext;
2605 Used with gras_raw_{send,recv}
2608 It should allow to kill the last bits of gras first version soon.
2610 This is not completely satisfactory yet (duplicate code with
2611 chunk_{send,recv}; a bit out of the plugin mechanism), but it should
2614 - Simplify transport plugin (internal) interface by not passing any
2615 argument to _server and _client, but embedding them in the socket
2618 2004-09-28 Martin Quinson
2619 - Finish the port to AIX.
2620 autoconf was my problem (segfault within the malloc replacement
2621 function. No idea why)
2623 2004-09-16 Martin Quinson
2624 - Fix some size_t madness on 64bit architectures.
2626 2004-09-08 Martin Quinson
2627 - Reduce the number of system headers loaded, overload some more system
2628 calls (such as malloc to cast the result of the system one, and work
2630 - Fix and reintroduce the config support
2632 2004-09-07 Martin Quinson
2633 - Source code reorganization to allow Arnaud to surf all over there.
2634 - Allow to document the logging categories.
2635 - Remove all uppercase from logging categories and useless cleanup in names.
2637 2004-08-18 Martin Quinson
2638 Version 0.6.2 (protocol not changed; API changed)
2639 - Interface cleanup: gras_msgtype_by_name returns the type (instead of a
2640 gras_error_t), and NULL when not found. Functions expecting a msgtype
2641 as argument (msg_wait; msg_send) deal with NULL argument by providing a
2642 hopefully usefull message.
2643 - Portability to prehistoric sparcs again
2645 2004-08-17 Martin Quinson
2646 Version 0.6.1 (protocol not changed; ABI not changed)
2647 - prealloc some buffers to speed things up
2649 2004-08-11 Martin Quinson
2650 Version 0.6 (protocol not changed; ABI expended)
2651 - The parsing macro can deal with the references, provided that you add
2652 the relevant annotations (using GRAS_ANNOTE(size,field_name))
2654 2004-08-09 Martin Quinson
2655 Version 0.5 (protocol not changed; ABI changed)
2656 - Allow to off turn the cycle detection code in data exchange at
2657 compilation time. It should be at run time, but I'm short of time (and
2658 the config stuff is still broken). That way, we keep dict out of the
2659 critical path, which is good because the performance is poor:
2660 - search not dichotomial yet
2661 - dynar give no way to access their content and memcpy everytime
2662 - In composed data description (struct, ref and so on), stop foolness of
2663 keeping the subtype's ID, but store the type itself. This keeps sets out
2664 of the critical path, which is good since they rely on dynar and
2665 dictionnaries. The only loose of that is that we cannot detect the
2666 redeclaration of a structure/union with another content (but I'm not sure
2667 the code detected well this error before anyway). We still can detect
2668 the redefinition discrepancy for the other types.
2669 - Use a whole bunch of optimisation flags (plus -fno-strict-aliasing since
2670 it breaks the code because of type-punning used all over the place).
2671 This breaks on all non-gcc architectures (for now).
2673 All those changes (plus the buffer of last time) allow me to gain 2 order
2674 of magnitude on cruel tests consisting of 800000 array of integers on two
2675 level of a hierarchical structure (200 secondes -> 4 secondes)
2678 - the selector of reference must now return the type it points to, not
2679 the ID of this type.
2681 2004-08-06 Martin Quinson
2682 Version 0.4 (protocol changed; ABI not changed)
2683 - Allow to pass --gras-log argument to processes in simulation mode. Really.
2684 - New debugging level: trace (under debug) to see effect of GRAS_IN/OUT
2685 - Implement a buffer transport, and use it by default (it relies on tcp in
2686 real life and on sg in simulation).
2687 That's a bit hackish since I had a new field to the structure to store
2688 its data without interfering with the subtype ones. Inheritance
2689 is tricky in C. And that's a kind of reverse inheritance with one class
2690 derivating two classes. Or maybe a game with java interfaces. Anyway,
2691 that's damn hard in C (at least).
2692 Moreover, I got tired while trying to ensure plugin separation and
2693 genericity in SG mode. MSG wants me to do weird things, so let's go for
2694 cruel hacks (temporarily of course ;).
2695 See comment in transport_private.h:71
2696 - do not include all the _interface headers in private but in the files
2697 which really need them (to cut the compilation time when they are
2700 2004-07-26 Martin Quinson
2701 Version 0.3 (protocol not changed; ABI changed)
2702 - Major overhault of the datadesc interface to simplify it:
2703 - shorted the function names:
2704 s/gras_datadesc_declare_struct/gras_datadesc_struct/ and so on
2705 - add a trivial way to push/pop integers into the cbps without malloc.
2706 This allows to make really generic sub_type description, which simply
2707 pop their size of the stack.
2708 - add a function gras_datadesc_ref_pop_arr() which does what users want
2709 most of the time: Declare a dynamic array (which pops its size of the
2710 stack) and declare a reference to it. Poor name, but anyway.
2711 - kill the post-send callback, add a post-receive one
2713 2004-07-23 Martin Quinson
2714 Version 0.2 (protocol changed; ABI changed)
2715 - add some testing for cpbs in the test cases, and fix some more bugs.
2716 This invalidate again the little64 data file, since I cannot regenerate
2718 - remove an awfull optimization in the logging stuff, allowing me to:
2719 - understand it again
2720 - learn gcc how to check that the argument match the provided format
2721 - fix all errors revealed by gcc after that
2722 - internal keys of dict are not \0 terminated. Deal with it properly in
2723 loggings instead of segfaulting when the user want to see the logs :-/
2725 2004-07-22 Martin Quinson
2726 - Fix some stupid bug preventing cbps (callback postit) from working
2728 2004-07-21 Martin Quinson
2729 - Some documentation cleanups
2730 - remove the useless last argument of msgtype_declare
2731 - rename the Virtu functions to fit into the 'os' namespace
2732 - move headers src/include -> src/include/gras/ and stop fooling with
2733 gras -> . symbolic link
2734 - make distcheck is now successful
2736 2004-07-19 Martin Quinson
2738 - Build shared library also
2739 - Install html doc to the right location
2740 - stop removing maintainer files in make clean
2741 - build tests only on make check
2743 2004-07-13 Martin Quinson
2745 - No major issue in previous version => change versionning schema
2746 - Re-enable little64 convertion test now that Abdou kindly regenerated the
2747 corresponding dataset.
2749 2004-07-11 Martin Quinson
2751 - Get it working with any kind of structure (we can compute the padding
2752 bytes remotely for all the architectures I have access to)
2753 - Implement the structure parsing macro (still not quite robust/complete)
2754 - Improvement to the remote testing toysuite
2756 2004-07-10 Martin Quinson
2757 [autoconf mechanism]
2758 - get ride of a bunch of deprecated macros
2759 - actually run the test for two-compliment, not only compile it :-/
2760 - test whether the structures get packed (and bail out if yes. Damn.
2761 Alignment is a serious matter)
2762 - test whether the structures get compacted (but respecting the alignment
2763 constraints of each types)
2764 - test whether the array fields of structures can straddle alignment boundaries
2766 - Damnit, double are bigger than float (typo in creation of 'double' datadesc)
2767 (took me 2 hours to find that bug, looking at the wrong place)
2768 - Add gras_datadesc_declare_{union,struct}_close(). They must be used
2769 before sending/receiving and are used to compute the offsets of fields
2770 - Given that padding size depend even on compiler options, keep track of
2771 alignment and aligned_size only for the current architecture. Not a big
2772 deal since we send structure fields one after the other (seems
2774 - Add the datastructure used for IEEE paper by the PBIO guys to the test
2775 program, let it work on linux/gcc/little32. portability todo.
2777 2004-07-08 Martin Quinson
2778 - import and improve remote compilation support from FAST
2779 - make sure make check works on half a dozen of machines out there
2781 2004-07-07 Martin Quinson
2782 Let's say it's version 0.0.3 ;)
2783 - Implement conversions (yuhu!)
2784 - Let it work on solaris (beside conversion, of course)
2785 - Stupid me, using rand() to generate the conversion datatests in not wise.
2787 2004-07-06 Martin Quinson
2788 - Let make dist work, since I'm gonna need it to compile on remote hosts
2789 - Let Tests/datadesc_usage write the architecture on which the file was
2790 generated as first byte.
2791 - Add PowerPC (being also IRIX64), SPARC (also power4) and ALPHA
2792 architecture descriptions.
2793 - Add datadesc_usage.{i386,ppc,sparc} files being the result of execution
2794 on those architectures.
2795 - Optimization: send/recv array of scalar in one shoot
2797 2004-07-05 Martin Quinson
2798 - YEAH! GRAS/SG and GRAS/RL are both able to run the ping example !
2800 - Plug a whole bunch of memleaks
2801 - each process now have to call gras_{init,exit}. One day, their log
2802 settings will be separated
2803 - Continue the code factorisation between SG, RL and common in Transport.
2805 2004-07-04 Martin Quinson
2807 - Redistribution between SG and RL.
2808 We wanna have to accept in SG, so move accepted related parts of RL in
2809 the common part. (more precisely, the dynar of all known sockets is no
2810 more a static in transport.c, but part of the process_data)
2812 [gras_stub_generator]
2813 - Bug fix: Do call gras_process_init from gras_init (wasnt called in RL).
2815 2004-07-03 Martin Quinson
2816 - Create a new log channel tbx containing dict, set, log, dynar (to shut
2817 them all up in one shot)
2819 - Fix the ugly case of reference to dynamic array.
2820 - New (semi-public) function gras_datadesc_size to allow the messaging
2821 layer to malloc the needed space for the buffer.
2823 - gras_socket_close now expect the socket to close (and not its address to
2824 put NULL in it after it). This is because the socket passed to handlers
2825 is one of their argument (=> not writable).
2827 - propagate the interface cleanup from last week in datadesc, ie remove a
2828 superfluous level of indirection. User pass adress of variable
2829 containing data (both when sending and receiving), and not of a variable
2830 being a pointer to the data. Let's say that I like it better ;)
2831 The price for that is constructs like "int msg=*(int*)payload" in
2832 handlers, but it's a fine price, IMHO.
2834 - Let it work in RL (yuhu)
2836 2004-06-21 Martin Quinson
2838 - porting SG plugin and SG select to new standards (works almost).
2839 - plug memleaks and fix bugs around.
2842 - cleanup the prototype of data recv and force users to specify when they
2843 want to handle references to objects. Test case working even for cycles.
2844 - plug memleaks. Valgrind is perfectly ok with this.
2846 2004-06-12 Martin Quinson
2848 - cleanup the separation between plugin and main code in plugin creation
2850 2004-06-11 Martin Quinson
2852 - Reput hook for raw sockets, needed for BW experiments
2853 - kill a few lines of dead code
2854 [Data description] Interface cleanup
2855 - gras_datadesc_by_name returns the searched type or NULL.
2856 That way, no variable is needed to use a type desc once, which makes
2858 - gras_datadesc_declare_[struct|union]_append_name is removed. The last
2859 two parameters were strings (field name, type name), leading to
2861 [Dicos] Interface cleanup
2862 - gras_dico_retrieve -> gras_dico_get ; gras_dico_insert -> gras_dico_set
2863 This is consistant with the dynar API.
2865 2004-04-21 Martin Quinson
2867 - Porting to new standards.
2869 - interface cleanup.
2870 There is no bag anymore, no need to take extra provision to mask the
2871 pointers behind "ID".
2872 Better splitup of functions between files create/exchange/convert.
2873 This is still a bit artificial since convert and receive are so
2874 interleaved, but anyway.
2876 - add a queued message list to procdata (the ones not matching criteria
2878 - factorize some more code between SG and RL wrt procdata
2880 - use gras_exit in example to track memleaks
2881 - get rid of gs_example now that GS is properly integrated into gras
2882 - update run_test to integrate the latest tests (datadesc)
2884 - rename WARNINGn macros to WARNn since it prooved error-prone
2886 2004-04-19 Martin Quinson
2888 - register init/exit functions within gras module mechanism
2889 - send/receive function.
2890 Convertion is not implemented, but short-cutted if not needed.
2891 struct/array elements are sent one by one (instead of block-wise), but
2892 nobody really cares (yet). Get a prototype before optimizing.
2893 - tests (using a file socket) for DD send/receive on:
2894 - base types: int, float
2895 - array: fixed size, string (ie ref to dynamic string)
2896 - structure: homogeneous, heterogeneous
2897 - chained list, graph with cycle
2898 Believe it or not, valgrind is not too unhappy with the results. The
2899 cycle happily segfaults, but the others are ok. And I'm sick of pointers
2903 - Bugfix when using a filename explicitely (instead of '-')
2905 2004-04-09 Martin Quinson
2907 - factorize more code between RL and SG in socket creation
2908 - Complete the implementation and tests of:
2910 o file (only in RL, and mainly for debugging)
2912 I lost 3 days to design a portable address resolver, and then decided
2913 that the prototype mainly have to run on my box.
2914 Addressing portability too early may be like optimizing too early :-/
2916 - use gras_init in the Tests instead of the crappy parse_log_opt
2917 (the latter function is removed)
2918 [Conditional execution]
2919 - New functions: gras_if_RL/gras_if_SG (basic support for this)
2920 [Code reorganisation]
2921 - Get rid of libgrasutils.a since it makes more trouble than it solves.
2922 Build examples against the RL library, since there is no way to disable
2923 its creation for now.
2925 For information, the beginning of coding on GRAS was back in june
2926 2003. I guess that every line has been rewritten at least twice since