1 SimGrid (3.3.2-svn) unstable; urgency=low
4 * Implement MPI_Waitany and MPI_Waitall
7 * Declare common_public as an embeeded struct to reduce redirections
9 * Factorize model_init/exit between models
10 * Factorize the set of resources within common_public;
11 + change model->common_model->resource_name()
12 into surf_model_resource_by_name(model)
13 (less redirections, less function to write when defining a model)
14 * Unify the types of models in a uniq s_surf_model_t (using an union)
15 * Embeed every fields of common_public directly into s_surf_model_t
18 * Add xbt_set_get_by_name_or_null() [Silas De Munck]
19 * Add xbt_graph_node_get_outedges() [Silas De Munck]
21 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
23 SimGrid (3.3.1) stable; urgency=low
26 * Implement a --cfg-help to show existing configuration variables
27 * Build chain do not require doxygen in maintainer mode
30 * fix a bug on struct sizeof computation, which prevented the
31 exchange of arrays of structs in some conditions
32 - added a regression test about this in datadesc_usage
33 * Allow the exchange of 0-long dynamic vectors.
34 - for that, use -1 as indicator of dynamic size instead of 0
35 - This implied to change any size from unsigned long to long,
36 reducing a bit communication abilities, but I guess that with
37 64bits being quite common, this is more than enough.
38 - This also induce a protocol change, thus bumping network protocol
39 version from 0 to 1 (if we have external users, we have to get
40 clean on that point too ;)
41 - added two regression tests about this in datadesc_usage
42 * Be more verbose when propagating local exceptions
44 * Display the status of simulated processes when receiving SIGINT in
48 * Allow to control the simulation from a trace file.
49 New functions MSG_action_register() and MSG_action_trace_run()
50 The first one allows to associate a function execution to each
51 kind of action while the second one parses a trace file and
52 triggers the corresponding actions within the system.
53 For now, only a toy example is provided in examples/msg/actions
54 * Add an exemple of process migration in examples/msg/migration
55 * Fix a bug in task exchange which broke MSG_task_get_sender()
56 Add a teshsuite regression test for that.
57 [Bug: if MSG_task_get_sender() is called after sender exit,
59 * Fix a bug which prevented suspend/resume to work properly
60 * Display the status of simulated processes when receiving SIGINT
61 This fixes a regression of v3.3. due to the introduction of SIMIX
62 * Bug fixing in failure management:
63 - trace could not start by a failure at time 0
64 - failure during communications were not working
67 * Add SIMIX_process_set_name() to change the name of the current
68 process in the log messages.
69 * Store smx_hosts in a dict since we only retrieve them by name
70 * Move the configuration infrastructure to surf
73 * Move the configuration infrastructure to surf
76 * Massive internal cleanups:
77 - Store internal structures on processes instead of hosts (allows
78 to have more than one process per host, in addition of being more
80 - Cleanup the initialization/finalization process
81 - Kill a whole bunch of unneeded synchronization:
82 processes run in exclusive manner within the simulator
83 - Move queues from global tables to process data fields
85 - now accept -platform and -hostfile arguments
86 - Pass the right rank value to processes according to the hostfile
87 * Compile the examples by default, and use them as regression tests
88 * Implement MPI_Wtime()
89 * Change the reference speed to a command line option
92 * TCP_gamma can now be specified as command line option using
93 --cfg=TCP_gamma:10000000.0
94 * Change the --surf-path cmd line option into --cfg=path:
97 * Also include strbuff from xbt.h public header
98 * xbt_ex_display(): do not free the exception after displaying
99 This allows to do more with the given exception afterward.
100 Users should call xbt_ex_free() themselves.
104 Portability report of this version:
105 * Main portability targets:
106 - Linux(debian)/x86/context
107 - Linux(debian)/x86/pthreads
108 - Linux(debian)/amd64/context
109 - Linux(debian)/amd64/pthreads
110 These targets fail about 1/10 of times on gras/pmm, but we believe
111 that this is because of the test, not because of simgrid.
112 amok/saturate_sg fails even more rarely, and the test may not be
115 - Mac OSX Leopard/x86/context
116 The test suite still spits tons of errors because some obscure
117 force prevents us from removing the temporary directories
118 arguing that they still contain some metadata I've never heard of.
119 Smpi fails because seq is not installed.
120 Everything seems to work properly beside of that.
123 - AIX version 5.3 (both contexts and pthread)
124 Smpi still fails there because mktemp is not installed.
125 XML inclusions seems rosty on AIX.
127 * Windows: it's still lagging behind. If you want to help, please
130 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Sat, 27 Jun 2009 00:14:30 +0200
132 SimGrid (3.3) stable; urgency=high
136 * JAVA BINDINGS for MSG (you dreamt of them? We made them)
139 * Introduce the SIMIX module: factorize code between MSG and GRAS.
142 Until now, GRAS were using MSG as an interface to SURF. It was
143 quite difficult because both interface have several differences
144 (MSG channels vs GRAS sockets were the most notable point).
146 This also opens the gate to SMPI (which should occur soon) and speed
147 up simulations by to 40% (even if it were not the main goal).
149 **************************************
150 *DO NOT MIX 3.2 RESULTS WITH 3.3 ONES* Simix may changes simulations!
151 **************************************
152 The point is that events occuring at the exact same timestamp are
153 not scheduled in the same order with the old and new version. This
154 may be enough to completely change the execution of simulations in
155 some cases. Sorry for the inconvenience.
157 * Cleanup and upgrade the XML format to push further scalability
158 issues (check http://hal.inria.fr/inria-00256883/ for more info)
160 * Improve the testing infrastructure with tesh. Now a very large part of
161 the code is tested not only by being run but also by checking that the
162 output match an expected output [Mt].
164 * Move on to FleXML v1.7 for the embeeded XML parsers. This version
165 is really less memory-demanding, which should allow you to use
166 larger files in SimGrid [AL].
168 * Inform valgrind about our contextes, so that it becomes usable
169 with the default (and more effecient) version of SimGrid
170 [contributed by Sékou Diakite, many thanks]
173 * Introduce a listener thread in charge of receiving incomming
174 messages from the network. It allows to overlap communication and
175 computation but most notably, it removes some stupid deadlocks due
176 to the fact that so far, a process could not send and receive at
177 the same time. This made most non trivial communication schema
179 * Convert the PIDs from long int to int to match the MSG ones (and
181 * New function: gras_agent_spawn() to launch a new process on
182 current host. Only working in simulation for now. [Mt]
183 * New function: gras_os_hostport() returning a constant form (ie,
184 not needing to be freed) of "gras_os_hostname():gras_os_myport()"
187 * Make the backtrace of exceptions more human readable [Mt]
188 * New module: xbt/str [Mt]
189 a ton of string utility functions (split, join, printf to a newly
190 allocated buffer, trim, etc)
191 * New module: xbt/hash [Mt]
192 SHA1 hashing algorithm (more to come if needed)
193 * New module: xbt/synchro [Mt]
194 synchronization tools (mutex and conditions) working the same way
195 in simulation and in real life (mainly useful for GRAS, but not
197 * New module: xbt/queue [Mt]
198 classical producer/consumer synchronization scheme
199 * xbt_dynar_new_sync() creates a synchronized dynar. All access
200 (using the classical functions will get serialized) [Mt]
201 * Make dictionary internal table dynamic. No need to specify its size
202 anymore; functions xbt_dict_new_ext() and xbt_dict_hashsize_set()
204 * Make sure the log channels are organized as a tree under windows
205 (because of ANSI C compatibility issue, any channel were child of
209 * Cleaned many thing in surf and fixed a few bugs [AL].
210 * Add a nice command line configuration mechanism to compose models [AL].
211 * Add a new model for parallel tasks (ptask_L07) that is less buggy than
212 the previous one (KCCFLN05). It relies on something that looks like
213 a max-min sharing mechanism but cannot be written as such. A new solver
214 was thus designed [AL].
215 * Add a new solver to lmm. Based on Lagrange optimization and
216 gradient-based descent, it enables to efficiently maximise systems s.a
218 sum f_i(x_i) s.t Ax<= b with A_{i,j}>=0 and f_i a concave function.
220 This solver enables to propose two new network models for TCP Reno and
221 TCP Vegas based on Low's work. These models still need to be fully
222 tested though [Pedro Velho].
225 * Bug fix in SD_simulate. Now the time bound given as argument is
227 * Use the new parallel task model (ptask_L07) as default.
228 * Use the SURF command line configuration mechanism.
229 * 0-size tasks (for synchronization) should now work.
231 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Sun Apr 12 05:20:36 CEST 2009
233 SimGrid (3.2) stable; urgency=high
237 We still experience issues on this platform, but we believe that at
240 GRAS API BREAKAGE (for simplification purpose, sorry):
241 * the gras_msgtype_by_name is not used anymore. Instead of
242 gras_msg_send(toserver, gras_msgtype_by_name("request"), &request);
243 you can write (and must)
244 gras_msg_send(toserver, "request", &request);
245 - If you still want to pass a gras_msgtype_t to the function (to cache
246 the type and avoid the lookup time), use the gras_msg_send_() variant.
247 - Impacted functions:
248 gras_cb_register, gras_cb_unregister, gras_msg_send, gras_msg_wait,
249 gras_msg_rpccall, gras_msg_rpc_async_call, gras_msg_wait_ext
250 * The callbacks are now expected to return 0 when everything went well
251 (just like the main() function)
253 GRAS new features and improvements:
254 * New module mecanism where user code can use per process globals [Mt]
255 This is similar to gras_userdata_*() functions, but for libraries. It
256 factorize some code developped over and over in the examples and AMOK.
257 It has still to be documented and used (only amok/peermanagement is
259 * Fix a vicious bug in the TCP buffering mecanism which leaded to message
260 loss when they were small enough to fit into the buffer and sent quickly
261 enough so that they can all get received in one shoot.
262 * gras_datadesc_by_name and gras_msgtype_by_name: now raise an exception
263 if not found. Use the *_or_null() variant for the old semantic.
264 * In gras_msg_handle, do not discard messages without callback.
265 They are probably messages to be explicitly awaited later (ie, proofs of
266 mis-synchronization in userland since they are sent before being awaited)
268 * gras_socket_meas_send/recv: semantic changed!
269 The numerical arguments used to be (1) the total amount of data to send
270 and (2) msg_size. This was changed to (1) msg_size and (2) amount of
271 messages. This was need for the fool willing to send more than MAXINT
272 bytes on quite fat pipes.
275 * Do really rename the hostmanagement module to peermanagement. [Mt]
276 Ie, rename functions from amok_hm_* to amok_pm_*. This breaks the API,
277 but this is rather new and this was documented in the module
278 documentation (poor excuses, I admit)
279 * Bandwidth measurement semantic changed! This follows the changes to
280 gras_socket_meas_send/recv explained above.
283 * A sequential mode has been added to the workstations. When a workstation
284 is in sequential mode, it can execute only one task, and the other tasks
285 are waiting in a FIFO. [Christophe Thiery]
288 * The KCCFLN05 workstation model now handles parallel tasks. It is the
289 model for SIMDAG. [Christophe Thiery]
290 * Bug fix in the maxmin solver: Some values were close to 0 instead of
291 equal to 0, which caused some bad behaviors in
292 saturated_constraint_set_update. I now use a threshold mechanism like in
296 * When running manually src/testall, you select specific units [Mt]
297 testall is the result of our cunit mecanism, and should replace all
298 the scripty thingy around since bash don't run easily on billware.
300 * A mallocator system has been added. [Christophe Thiery]
301 Mallocators allow you to recycle your unused objects instead of freeing them
302 and allocating new ones.
304 Documentation update:
305 * FAQ reworking + New FAQs:
306 - "Valgrind spits tons of errors!" [Mt]
307 - "How to repport bugs" [Mt]
308 - "Cross-compiling a Windows DLL of SimGrid from Linux" [Mt]
309 - "What is the difference between MSG, SimDag, and GRAS?" [Mt]
310 - Communication time measurement within MSG [AL]
311 - I experience weird communication times when I change the latency [AL]
314 - an introduction to the framework and to the used communication model
315 - an initiatic tour introducing the most proheminent features:
317 . Lesson 0: Installing GRAS
318 . Lesson 1: Setting up your own project
319 o Part 2: Message passing
320 . Lesson 2: Exchanging simple messages
321 . Lesson 3: Passing arguments to the processes (in SG)
322 . Lesson 4: Attaching callbacks to messages
323 . Lesson 5: Using globals in processes
324 . Lesson 6: Logging informations properly
325 . Lesson 7: Using internal timers
326 . Lesson 8: Handling errors through exceptions
327 . Lesson 9: Exchanging simple data
328 . Lesson 10: Remote Procedure Calling (RPC)
329 . Lesson 11: Explicitely waiting for messages
330 . Recapping of message passing features in GRAS
331 - A HOWTO section containing:
332 o HOWTO design a GRAS application
333 More are due, of course. They will come latter. In the meanwhile, you can
334 check the examples which are still here.
336 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri Mar 16 21:11:46 CET 2007
338 SimGrid (3.1) stable; urgency=high
342 There was a stack corruption somewhere, visible only when optimizing
343 with these versions. [Vince]
346 * This is a NEW module! SimDAG (SD for short) is a revival of the old SG
347 module that enabled to play with Directed Acyclic Graphs. It is built
348 directly on top of SURF and provides an API rather close to the old
349 SG. Some old codes using SG are currently under rewrite to check that
350 all needful functions are provided. [Christophe Thiery]
353 * Complete rewrite of the KCCFLN05 workstation model. It is now an
354 extension of the classical CLM03 model that gracefully handles
355 failures. This is now the default model for MSG and GRAS. It doesn't
356 handle parallel tasks yet though. [AL]
357 * Bug fix: Weights were not correctly set in the network part.
358 WARNING: This may have resulted in incorrect results with simulations
359 where there are more than one flow on a given link. [AL]
362 * After a (long ?) discussion on simgrid-devel, we have decided that the
363 convention we had on units was stupid. That is why it has been decided
364 to move from (MBits, MFlops, seconds) to (Bits, Flops, seconds).
365 WARNING : This means that all previous platform files will not work as
366 such with this version! A warning is issued to ask users to update
368 A conversion script can be found in the contrib module of the CVS, under
369 the name contrib/platform_generation/surfxml_update.pl [MQ]
372 * Bug fix: Processes were started in reverse order, wrt deployment file.
373 WARNING: if your code relies on this bug, please fix it. [AL]
374 * Bug fix: Add a test in MSG_task_execute to stop whenever a task is
375 being executed on two different locations. [AL]
376 * Bug fix: Failures are now better supported thanks to Derrick's tests
377 (there was many failure situations I hadn't thought of and that weren't
378 correctly handled). [AL]
379 * New function: MSG_host_is_avail indicates you whether a given m_host_t
383 * New! a real RPC mecanism, as it ought to be since too long. [MQ]
384 Exception occurring on server-side are propagated back to client (!).
386 API CHANGE: the callback changed their prototype. Change:
387 int my_handler(gras_socket_t expeditor, void *payload_data) {
389 int my_handler(gras_msg_cb_ctx_t ctx , void *payload_data) {
390 gras_socket_t expeditor=gras_msg_cb_ctx_from(ctx);
392 * New! function: gras_msg_handleall to deal with all messages arriving
393 within a given period.
394 * New! function: gras_socket_server_range to get a server socket in a
395 range of port numbers (ease to avoid port number conflicts) [MQ]
396 * New! gras processes display their backtrace when they get a SIGUSR1
397 or when Ctrl-C is pressed. Use Ctrl-C Ctrl-C to exit.
398 Sweet to debug RL processes [MQ]
402 - Do not force experiment sizes to be expressed in kb, or it becomes
403 impossible to measure the latency this way (needs one byte-long tests)
404 WARNING: this changes the amok_bw_* function semantic. [MQ]
405 - Implements the link saturation stuff. [MQ]
406 * Peer management module:
407 New! module factorizing code that we wrote over and over [MQ].
410 * New module: cunit (my jUnit implementation in ansi C) [MQ]
411 - Test units are placed directly into the library code, they get extracted
412 automatically and placed into the src/testall binary.
413 - Convert most of the XBT tests to this system.
414 * New functions: xbt_dynar_getfirst_as() and xbt_dynar_getlast_as() [MQ]
415 * XML parsing: rewrote parts of flexml to enable multiple xml parsers to
416 live in the same C code. This required to change a little bit the API
417 of surfxml parsing but shouldn't be an issue for end-users. [AL]
418 * New module: sparse graph structure with basic algorithms (this is work
419 in progress and the API is not considered to be frozen yet). [AL]
420 * Display more information on backtraces: source line & function names are
421 now displayed just like valgrind does (rely on addr2line tool) [MQ]
422 * New function: xbt_backtrace_display(). Sweet while debuging [MQ]
423 * Reworked a little bit some #include statements to load only required
424 headers. Some user code that relied on SimGrid to include stdlib or
425 stdio may need to include it by themselves. [AL]
426 * Fixed xbt/log.h. A missing SG_BEGIN_DECL prevented compilation with
428 * Renamed xbt_host_t into xbt_peer_t since it betterly describes what I
429 meant. This breaks the API of AMOK and of xbt/config. Sorry about this,
430 but I guess that almost nobody used those parts. [MQ]
432 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 14 Jul 2006 01:32:27 +0200
434 SimGrid (3.0.1) stable; urgency=low
437 * Unfortunately, I had missed 5 misnamed functions:
438 xbt_fifo_item_t xbt_fifo_newitem(void);
439 void xbt_fifo_freeitem(xbt_fifo_item_t);
440 xbt_fifo_item_t xbt_fifo_getFirstItem(xbt_fifo_t l);
441 xbt_fifo_item_t xbt_fifo_getNextItem(xbt_fifo_item_t i);
442 xbt_fifo_item_t xbt_fifo_getPrevItem(xbt_fifo_item_t i);
443 They're now deprecated. Please use their new versions:
444 xbt_fifo_item_t xbt_fifo_new_item(void);
445 void xbt_fifo_free_item(xbt_fifo_item_t);
446 xbt_fifo_item_t xbt_fifo_get_first_item(xbt_fifo_t l);
447 xbt_fifo_item_t xbt_fifo_get_next_item(xbt_fifo_item_t i);
448 xbt_fifo_item_t xbt_fifo_get_prev_item(xbt_fifo_item_t i);
450 * Bugfix: really disconnect fifo items which are remove_item()ed [AL]
451 * Documentation: xbt_log module unmercifully reworked [MQ]
452 * Bugfix: there was a problem with the ending of contexts with
453 the pthread backend. It caused some weird deadlock or behavior
454 depending on the pthread implementation. [AL]
455 * Bugfix: get the exceptions raised in the simulator repport where
456 and why they come from when they are not catched in time [AL, MQ]
459 * Bugfix: Do repport the error when two non-connected hosts try to
460 exchange data (Thanks to Flavien for stumbling into this one) [AL]
463 * Add additionnal checkings on communications. Assert that two
464 communicating hosts are connected by a set of links... [AL]
467 * Add additionnal checkings on channel values in communication [AL]
468 * New: MSG_task_get_source to see on which host a task was generated [HC]
469 * New: int MSG_task_probe_from_host(int channel, m_host_t host): returns
470 the number of tasks waiting to be received on channel and sent
472 * New: MSG_error_t MSG_task_get_from_host(m_task_t * task, int channel, m_host_t host);
473 waits for the first task coming from a given host.. [AL]
475 GRAS new functionnalities: [MQ]
476 * Enhance the parsing macro to allow the size of multidimentional objects
477 to be given thru annotations.
478 * New example (and documentation): Matrix Multiplication a la RPC
479 (as when I was young!) and fix a bunch of bugs found on the way.
481 GRAS performance improvements: [MQ]
483 * Reduce the amount of cbps creation/destruction by making it static to
484 datadesc_send/recv() and using a (newly created) cbps_reset (based on
487 * Change libdata to a set so that we can search for stuff by ID (and thus
488 reduce the insane amount of dict lookups)
491 * Actually implement gras_datadesc_copy() so that we don't have to mimick
492 RL communication on top of SG since it's so uneffective.
493 It may also be used for inter-thread communication in RL, one day.
494 * Use gras_datadesc_copy() to exchange messages on top of SG
496 - improve message exchange performance on top of SG
497 - deprecate transport_plugin_sg.c:gras_trp_sg_chunk_send() & recv()
498 * Don't exchange on the network the size of the used part of buffer,
499 instead, specify the possible buffer size to read().
501 - reduces the amount of read/write calls (one pair per exchange)
502 - reduces the amount of exchanged data (the size)
503 - allows to retrieve all arrived data on receiver side, if we don't need
504 it right now (subsequent read will peek the buffer)
505 - allows the receiver to proceed with the begining of the stream before
506 everything is arrived
507 - make it possible to build an iov transport (using readv/writev)
509 - take care of the data with non-stable storage (like stacked data),
511 * If possible, TCP send uses vector I/O (when writev() is here)
512 - Don't use it for receive since we send data sizes and data on the
513 same stream, so we wouldn't be able to chain large amount of chunks
514 before having to flush the stuff to read the size.
515 * Rework the transport plugin mecanism to simplify it and reduce the
516 amount of pointer dereferencement when searching for the right function
519 * I guess that now, we do almost as few system calls as possible while
520 doing as few data copy as possible.
522 To improve it further, we could try to send all the sizes first and then
523 all the data (to use iov on receiving size), but it's only a partial
524 solution: when you have 2 dimensional data, the sizes of the second
525 dimension is data of the first dimension, so you need 3 streams.
527 I'm not sure the potential performance gains justify the coding burden.
529 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 21 Oct 2005 14:42:20 +0200
531 SimGrid (3.00) stable; urgency=high
534 * New! Give the possibility to hijack the surf parser and thus bypass
535 MSG_create_environment and MSG_launch_application. Have a look at
536 examples/msg/msg_test_surfxml_bypassed.c to see how it can be done.
538 -- Arnaud Legrand <simgrid-devel@lists.gforge.inria.fr> Sat, 20 Aug 2005 23:25:25 -0700
540 SimGrid (2.96) unstable; urgency=low
545 * New! Exception handling with setjmp or such (code from OSSP ex) [MQ]
546 This deprecates the xbt_error_t mecanisms.
547 It modifies (simplifies) all XBT and GRAS API.
548 MSG API keeps unchanged (exceptions raised by XBT are catched from
549 within MSG and masked with existing error handling facilities)
552 * New! Add a FATPIPE model. [AL]
553 * New! Add a parallel task model. [AL]
554 * New! Add automatically a loopback interface (in the default
555 network model) if none was precised.
558 * Bugfix: MSG_process_resume now works with the current running process.
560 * New! Add MSG_parallel_task_create and MSG_parallel_task_execute. [AL]
561 * Modification of MSG_task_get_compute_duration. Once a task has been
562 processed, the value returned by this function is now equal to 0. [AL]
563 * New! Add double MSG_task_get_remaining_computation(m_task_t task) and
564 MSG_error_t MSG_task_cancel(m_task_t task). Add a state
565 (MSG_TASK_CANCELLED) to MSG_error_t corresponding to the cancelation
566 of a m_task. For now, MSG_task_cancel only works with computation
568 * New! Add double MSG_get_host_speed(m_host_t h) that returns the speed
569 of the processor (in Mflop/s) regardless of the current load on the
571 * API Change: use proper naming convention for MSG_getClock and
572 MSG_process_isSuspended: MSG_get_clock and MSG_process_is_suspended.
574 * New! Add void MSG_task_set_priority(m_task_t task, double priority).
575 This function changes the priority of a computation task. This priority
576 doesn't affect the transfer rate. A priority of 2 will make a task
577 receive two times more cpu power than the other ones. This function
578 has been added to suit the needs of Nguyen The Loc and hasn't been that
579 much tested yet. So if it fails, please report it and send me your code.
581 * API Change: removed all functions and types that were marked "deprecated"
582 since many months. Renamed MSG_global_init_args to MSG_global_init.
584 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Mon, 8 Aug 2005 17:58:47 -0700
586 SimGrid (2.95) unstable; urgency=low
589 * Steal some nice code to GNU pth to fix context detection and usage [AL]
590 * Cleanup in the xbt_config API; add configuration callbacks. [MQ]
591 * Cleanup in the initialization API: the unused "defaultlog" is dead. [MQ]
594 * Bugfix: Allow absolute paths for platform description files [MQ]
595 * Bugfix: do free the variables after use. Leads to drastic performance
597 * Implement max_duration (ie, timeouts) on resources [AL]
600 * Implement MSG_config to configure MSG at runtime. xbt_cfg test on a real
602 * Implement MSG_channel_select_from() to help GRAS now that SURF provide
603 the needed support (timeouts) [AL]
606 * Implement measurement sockets. You can now get the bandwidth between two
607 hosts thanks to AMOK (see below). [MQ]
608 * gras_datadesc_dynar() builds a dynar type descriptor, allowing to send
609 dynar over the network (yeah) [MQ]
610 * Real (even if simplistic) implementation of gras_os_myname() on RL [MQ]
611 * simple/static token-ring example. [Alexandre Colucci and MQ]
612 * Use MSG_channel_select_from() and remove the *slow* hack we had to put
616 * Differentiate the types "char[22]" and "unsigned char[22]" in automatic
617 type parsing. "short" and "long" modifiers were also ignored; other
618 modifier (such as reference level) are still ignored. [MQ]
619 * Embeed the buffer size within the buffer itself on SG. [MQ]
620 That way, send() are atomic and cannot get intermixed anymore (at least
621 the ones which are less than 100k; bigger messages still have the issue)
622 * Array size pushed by the field, not by the field type (or each
623 and every long int will push stuff to the cbps) [MQ]
624 * use select() to sleep since it allows to portably sleep less than one
627 GRAS (minor cleanups)
628 * <project>.Makefile.local (generated from gras_stub_generator) |MQ]:
631 * Type Callbacks now receive the gras_datadesc_type_t they work on as argument.
632 * type category 'ignored' killed as it was never used and were difficult
634 * whether a type can cycle or not is now a flag, leaving room for more
635 flags (as "ignored", if we feel the need one day ;)
636 * Rename raw sockets to measurement sockets since "raw" has another
637 meaning in networking community.
640 * Advanced Metacomputing Overlay Kit introduction. It is based over GRAS
641 and offers features not belonging to GRAS but that most applications
642 need. One day, it may be a set of plugins loadable at runtime.
643 * New module: bandwidth
644 bandwidth measurement between arbitrary nodes running this module. [MQ]
646 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Thu, 30 Jun 2005 16:29:20 -0700
648 SimGrid (2.94) unstable; urgency=low
650 The first beta release of SimGrid 3 !
654 * Update the main page and the FAQ. Adding references to gforge.
657 * Add a gras_os_getpid function.
660 * Add MSG_task_get_compute_duration() and MSG_task_get_data_size()
661 * Extend the logs so that they also print PID, hostname, date, ... if
663 * Convert the MSG example to the use of xbt_logs instead of PRINT_MESSAGE,
664 and kill the old version which were in testsuite/
665 * Rewrite tools/MSG_visualization/colorize.pl for using with logs instead
669 * Add xbt_os_time(). As the rest of xbt/portability, this is not public
670 for users. Instead, each programming environment (GRAS, MSG,...) use it
671 when needed to provide such a feature to users.
672 Don't shortcut the mecanism or you will also shortcut the virtualization
673 you need on the simulator.
677 * Cleanups in configury with regard to compile optimization/warning flags.
678 Also add -fno-loop-optimize to any powerpc since it's the optimization
679 killing gcc (< 3.4.0).
680 * Doxygen cleanups: move MSG examples, kill the second Doxygen phase
681 needed by MSG examples complications
682 * Borrow configury beautifications from PHP
685 * Bugfix: XBT_LOG_NEW_DEFAULT_CATEGORY now compiles without compiler
686 warning (thanks loris for stumbling into this one).
687 * Bugfix: stop loading private headers (gras_config.h) from the public
691 * Change SIMGRID_INSTALL_PATH to GRAS_ROOT in Makefiles generated for user.
692 * Rename gras_get_my_fqdn to gras_os_myname and implement it in the simulator
693 RL would imply a DNS resolver, which is *hard* to do in a portable way
694 (and therefore delayed).
695 * Implement a real timer mecanism and use it in timing macros. This allows
696 to avoid rounding errors and get a 0.000005 sec precision in timing
697 macros. While I was at it, various cleanups:
698 - allow to declare more than one timed section per file (fix a stupid bug)
699 - move some private declaration to the right place
700 - merge conditional execution and timing macros into emulation module
701 - document the module
702 - make sure the module cleanups its mess on gras_exit
703 * Documentation improvements:
704 - (new) how to compile applications using GRAS
705 - (new) emulation support (timing macros)
707 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 13 May 2005 10:49:31 +0200
709 SimGrid (2.93) unstable; urgency=low
711 Alpha 4 on the path to SimGrid 3 (aka the "neuf-trois" version)
714 - Use Paje properly where used. Still to be sanitized properly.
715 - Portability fix: Add an implementation of the contexts using pthread
719 - Add xbt_procname(): returns the name of the current process.
720 Use it to show the current process's name in all logging.
722 - fix detection of older flex version and the reaction, since we do
723 depend on modern ones (we use lex_destroy)
724 - Better separation of SG and RL in the libs: remove all simulation code
725 from libgras. As a result, this lib is now only 200k when stripped.
726 Some of the xbt modules may also be duplicated (two sets and such) and
727 should be cleaned/killed before SG3.
728 - Insist on using xlC on AIX because of weird problems involving gcc there.
729 - Cleanup the make remote stuff. This is now done by scripts
730 tools/graspe-{master,slave} (GRAS Platform Expender). This is still
731 mainly for our private use, but we're working on changing them to user
734 - Bugfix: flush the socket on close only if there is some *output*.
735 - Bugfix: flush idempotent when there's nothing to send (don't send size=0)
737 - Add MSG_task_get_name. The task names are mainly for debugging purpose,
740 -- SimGrid team <simgrid2-users@listes.ens-lyon.fr> Fri, 4 Mar 2005 14:32:37 -0800
742 SimGrid (2.92) unstable; urgency=low
744 Alpha 3 on the path to SimGrid 3
748 - New! First try of benchmarking macros.
749 - New! First try so that gras_stub_generator generate deployment and
750 remote compilation helpers.
752 - Bugfix: Initialization fix in msg_test.
756 - Bugfix: applied patch to lexer so that it doesn't need a huge heap.
758 - Bugfix: let dicts work with NULL content (_foreach didn't) and cleanups
760 - API Change: gras_os_sleep to take the amount of seconds as a double.
761 Accepting an int was error prone since it was the only location where
762 seconds were coded as such. It leaded to damn rounding errors.
763 - Bugfix: Hard to belive that timers ever worked before this.
765 -- SimGrid team <simgrid2-users@listes.ens-lyon.fr> Wed, 23 Feb 2005 22:09:21 +0100
767 SimGrid (2.91) unstable; urgency=low
769 Alpha 2 on the path to SimGrid 3
773 - Bug fix in the lmm_solver.
775 - New! Interface to Paje (see http://www-id.imag.fr/Logiciels/paje/)
776 through the function MSG_paje_output.
777 - New! Introducing two new functions MSG_process_kill() and MSG_process_killall().
778 - It is possible to bound the rate of a communication in MSG with
779 MSG_task_put_bounded() (was already in the previous version but I had forgotten
780 to write it in the changelog).
781 - Bug fix to let GRAS run on top of MSG until we move it directly on top
786 - Various cleanups to the autotools stuff
787 - Begin to move Gras examples to examples/gras/
788 - Let make distcheck work again (yeah!)
790 - documentation overhauled using doxygen.
791 gtk-doc-tools is dead in SimGrid now.
792 - Automatically extract all existing logging categories, and add the list
793 to the documentation (long standing one, to say the less)
795 - Cleanup the known architecture table. Reorder the entries to group what
796 should be, and use a more consistent naming scheme.
797 (some of the test dataset are still to be regenerated)
798 - New! Allow library to register globals on each process just as userdata
800 This is implemented using a xbt_dict and not a xbt_set, so we loose the
801 lookup time (for now).
802 Use it in msg and trp.
803 This cleans a lot the internals and helps enforcing privacy of the
804 headers between the gras components.
805 - New! Add a timer mechanism, not unlike cron(8) and at(1).
806 - Bugfix: gras_os_time was delirious in RL.
807 - Bugfix: gras_trp_select/RL don't run into the wall when asked to select
809 - Reenable GRAS now that it works.
811 -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 14 Feb 2005 14:02:13 -0800
813 SimGrid (2.90) unstable; urgency=low
815 Alpha 1 on the path to SimGrid 3
817 * It is a long time since the last release of SimGrid. I'm sorry about
818 that but as I had told you, I was rewriting a lot of things. I apologize
819 to those who had been reporting bugs to me and that I had not answered.
820 If your bug is still in the new version, please tell me. Here is a
821 summary of the main changes.
823 * REVOLUTION 1: The SimGrid project has merged with the GRAS project
824 lead by Martin Quinson. As a consequence SimGrid gains a lot in
825 portability, speed, and a lot more but you'll figure it out later.
826 SimGrid now comprises 3 different projects : MSG, GRAS and SMPI.
827 I wanted to release the new MSG as soon as possible and I have
828 broken GRAS, which is the reason why, for now, only MSG is fully
829 functional. A laconic description of these projects is available
830 in the documentation.
832 * REVOLUTION 2: I have removed SG and I am now using a new simulation
833 kernel optimized for our needs (called SURF but only the developers
834 should use it). Hence, MSG is now roughly 30 times faster and I think
835 that by rewriting a little bit MSG, I could event speed it up a little
836 bit more. Beside the gain in speed, it is also much easier to encode a
837 new platform model with SURF than it was with SG. More to come...
839 * REVOLUTION 3: I have tried to change a little as possible the API of
840 MSG but a few things really had to disappear. The main differences
841 with the previous version are :
842 1) no more m_links_t and the corresponding functions. Platforms are
843 directly read from a XML description and cannot be hard-coded
844 anymore. The same format is used for application deployment
845 description. The new format is described in the documentation.
846 Have a look in tools/platform_generation. There is a tiny script
847 that converts from the old platform format to the new one. Concerning
848 the application deployment format, parsing the old one is tricky.
849 I think most of you should however be able to convert your files. If
850 it is really an issue, I can write a C code that does the conversion.
852 2) the toolbox tbx does not exist anymore. We now have a library
853 with much more data-structures but without the hash-tables (we have
854 dictionaries that are much faster).
856 -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 31 Jan 2005 10:45:53 -0800
858 *****************************************************************************
859 * Follows the old GRAS changelog. It does not follow the same syntax, but I *
860 * don't feel like converting the oldies. (Mt) *
861 *****************************************************************************
864 Version 2.90: "the long awaited one"
865 - Finished rewriting and debugging MSG. Rewrote the documentation.
866 - disable GRAS for now since it needs to be ported to the newest SG
869 - Finish the port to windows (using mingw32 for cross-compile)
872 - Main loop and datastructures of SURF. A cpu resource object is
873 functional. Surf can thus be used to create cpu's with variable
874 performance on which you can execute some actions.
876 2004-11-15 Martin Quinson
877 - Port to ARM. Simply added the alignment and size descriptions. Should
878 work, but the ARM machines are so slow that I didn't had the opportunity
879 to 'make check' over there yet.
881 2004-11-15 Arnaud Legrand
882 - Trace manager now written. It uses a heap structure and is therefore
883 expected to be efficient. It may however be speeded up (particularly
884 when many events occur at the same date) by using red and black
885 trees. One day maybe...
886 - Max-min linear system solver written. It uses a sparse matrix
887 structure taking advantage of its expected use. Most operations are
888 O(1) and free/calloc are called as few as possible. The computation of
889 the minimum could however be improved by using a red and black tree
892 2004-11-03 Arnaud Legrand
893 - Rename every gras_* function that was in xbt/ to its xbt_
895 - Add a heap and a doubly-linked list to xbt
896 - Added a dichotomy to the dictionaries. make check works as well before
897 so I assume that the patch is correct. I do not know however if things
898 run effectively faster than before now. :)
900 Inclusion of the SimGrid tree in the GRAS one. The archive is renamed to
901 SimGrid, and the version number is bumped to 2.x
903 2004-10-29 Martin Quinson
904 - Introduction of the remote errors.
905 They are the result of a RMI/RPC on the remote machine.
906 ErrCodes being scalar values, you can't get the host on which those
907 errors did happen. Extending the error mechanism as in Gnome is possible.
908 No idea yet whether it is a good idea.
910 2004-10-28 Martin Quinson
911 - Interface revolution: the Starred Structure Eradication.
912 I used to do typedef struct {} toto_t; and then handle *toto_t.
913 Arnaud (and Oli) didn't like it, and I surrendered. Now, you have:
914 - ???_t is a valid type (builded with typedef)
915 - s_toto_t is a structure (access to fields with .)
916 - s_toto is a structure needing 'struct' keyword to be used
917 - e_toto_t is an enum
918 - toto_t is an 'object' (struct*)
920 typedef struct s_toto {} s_toto_t, *toto_t;
921 typedef enum {} e_toto_t;
922 Moreover, only toto_t (and e_toto_t) are public. The rest (mainly
923 s_toto_t) is private.
925 - While I was at it, all gras_<obj>_free() functions want a gras_<obj>_t*
926 so that it can set the variable to NULL. It was so for dicts and sets,
927 it changed for dynars.
929 - Fix a bunch of memleaks in dict_remove
930 - Fix a bug in sg/server_socket opening: it failed all the time.
932 2004-10-07 Martin Quinson
933 - Speed up dynar lookup operation a bit.
935 gras_dynar_get is dead.
937 Now, you can choose between gras_dynar_get_cpy (the old gras_dynar_get
938 but should be avoided for efficiency reasons) and gras_dynar_get_ptr
939 (which gives you the address of the stored data).
941 gras_dynar_get_as is an helpful macro which allows you to retrieve a
942 copy of the data using an affectation to do the job and not a memcpy.
944 int toto = gras_dynar_get_as(dyn,0,int); rewrites itself to
945 int toto = *(int*)gras_dynar_get_ptr(dyn,0);
947 It does not really speedup the dynar test because they are
948 setting elements all the time (and look them seldom). But the dict does
949 far more lookup than setting.
951 So, this brings the dict_crash test from ~33s to ~25s (200000 elms).
953 2004-10-05 Martin Quinson
954 - Allow to (en/dis)able the cycle detection at run time.
956 Whether we should check for cycle or not is now a property of each
957 datatype. When you think there may be some cycle, use datadesc_cycle_set.
958 datadesc_cycle_unset allow to remove this property when previously set.
960 Note that the cycle detection is off by default since it impacts the
961 performance. Watch the data you feed GRAS with ;)
963 This property is hereditary. Any element embedded in a structure having it
964 set have it set for the time of this data exchange.
966 You should set it both on sender and receiver side. If you don't set it on
967 sender side, it will enter an endless loop. If you forget on receiver
968 side, the cycles won't be recreated after communication.
970 - Header reorganization.
971 Kill gras_private.h, each submodule must load the headers it needs.
973 2004-10-04 Martin Quinson
974 - Interface revolution: do not try to survive to malloc failure.
976 Now, gras_malloc and friends call gras_abort() on failure.
977 As a conclusion, malloc_error is not a valid error anymore, and all
978 functions for which it was the only gras_error_t return value are
979 changed. They now return void, or there result directly.
980 This simplify the API a lot.
982 2004-09-29 Martin Quinson
983 - Re-enable raw sockets.
984 Created by gras_socket_{client,server}_ext;
985 Used with gras_raw_{send,recv}
988 It should allow to kill the last bits of gras first version soon.
990 This is not completely satisfactory yet (duplicate code with
991 chunk_{send,recv}; a bit out of the plugin mechanism), but it should
994 - Simplify transport plugin (internal) interface by not passing any
995 argument to _server and _client, but embedding them in the socket
998 2004-09-28 Martin Quinson
999 - Finish the port to AIX.
1000 autoconf was my problem (segfault within the malloc replacement
1001 function. No idea why)
1003 2004-09-16 Martin Quinson
1004 - Fix some size_t madness on 64bit architectures.
1006 2004-09-08 Martin Quinson
1007 - Reduce the number of system headers loaded, overload some more system
1008 calls (such as malloc to cast the result of the system one, and work
1010 - Fix and reintroduce the config support
1012 2004-09-07 Martin Quinson
1013 - Source code reorganization to allow Arnaud to surf all over there.
1014 - Allow to document the logging categories.
1015 - Remove all uppercase from logging categories and useless cleanup in names.
1017 2004-08-18 Martin Quinson
1018 Version 0.6.2 (protocol not changed; API changed)
1019 - Interface cleanup: gras_msgtype_by_name returns the type (instead of a
1020 gras_error_t), and NULL when not found. Functions expecting a msgtype
1021 as argument (msg_wait; msg_send) deal with NULL argument by providing a
1022 hopefully usefull message.
1023 - Portability to prehistoric sparcs again
1025 2004-08-17 Martin Quinson
1026 Version 0.6.1 (protocol not changed; ABI not changed)
1027 - prealloc some buffers to speed things up
1029 2004-08-11 Martin Quinson
1030 Version 0.6 (protocol not changed; ABI expended)
1031 - The parsing macro can deal with the references, provided that you add
1032 the relevant annotations (using GRAS_ANNOTE(size,field_name))
1034 2004-08-09 Martin Quinson
1035 Version 0.5 (protocol not changed; ABI changed)
1036 - Allow to off turn the cycle detection code in data exchange at
1037 compilation time. It should be at run time, but I'm short of time (and
1038 the config stuff is still broken). That way, we keep dict out of the
1039 critical path, which is good because the performance is poor:
1040 - search not dichotomial yet
1041 - dynar give no way to access their content and memcpy everytime
1042 - In composed data description (struct, ref and so on), stop foolness of
1043 keeping the subtype's ID, but store the type itself. This keeps sets out
1044 of the critical path, which is good since they rely on dynar and
1045 dictionnaries. The only loose of that is that we cannot detect the
1046 redeclaration of a structure/union with another content (but I'm not sure
1047 the code detected well this error before anyway). We still can detect
1048 the redefinition discrepancy for the other types.
1049 - Use a whole bunch of optimisation flags (plus -fno-strict-aliasing since
1050 it breaks the code because of type-punning used all over the place).
1051 This breaks on all non-gcc architectures (for now).
1053 All those changes (plus the buffer of last time) allow me to gain 2 order
1054 of magnitude on cruel tests consisting of 800000 array of integers on two
1055 level of a hierarchical structure (200 secondes -> 4 secondes)
1058 - the selector of reference must now return the type it points to, not
1059 the ID of this type.
1061 2004-08-06 Martin Quinson
1062 Version 0.4 (protocol changed; ABI not changed)
1063 - Allow to pass --gras-log argument to processes in simulation mode. Really.
1064 - New debugging level: trace (under debug) to see effect of GRAS_IN/OUT
1065 - Implement a buffer transport, and use it by default (it relies on tcp in
1066 real life and on sg in simulation).
1067 That's a bit hackish since I had a new field to the structure to store
1068 its data without interfering with the subtype ones. Inheritance
1069 is tricky in C. And that's a kind of reverse inheritance with one class
1070 derivating two classes. Or maybe a game with java interfaces. Anyway,
1071 that's damn hard in C (at least).
1072 Moreover, I got tired while trying to ensure plugin separation and
1073 genericity in SG mode. MSG wants me to do weird things, so let's go for
1074 cruel hacks (temporarily of course ;).
1075 See comment in transport_private.h:71
1076 - do not include all the _interface headers in private but in the files
1077 which really need them (to cut the compilation time when they are
1080 2004-07-26 Martin Quinson
1081 Version 0.3 (protocol not changed; ABI changed)
1082 - Major overhault of the datadesc interface to simplify it:
1083 - shorted the function names:
1084 s/gras_datadesc_declare_struct/gras_datadesc_struct/ and so on
1085 - add a trivial way to push/pop integers into the cbps without malloc.
1086 This allows to make really generic sub_type description, which simply
1087 pop their size of the stack.
1088 - add a function gras_datadesc_ref_pop_arr() which does what users want
1089 most of the time: Declare a dynamic array (which pops its size of the
1090 stack) and declare a reference to it. Poor name, but anyway.
1091 - kill the post-send callback, add a post-receive one
1093 2004-07-23 Martin Quinson
1094 Version 0.2 (protocol changed; ABI changed)
1095 - add some testing for cpbs in the test cases, and fix some more bugs.
1096 This invalidate again the little64 data file, since I cannot regenerate
1098 - remove an awfull optimization in the logging stuff, allowing me to:
1099 - understand it again
1100 - learn gcc how to check that the argument match the provided format
1101 - fix all errors revealed by gcc after that
1102 - internal keys of dict are not \0 terminated. Deal with it properly in
1103 loggings instead of segfaulting when the user want to see the logs :-/
1105 2004-07-22 Martin Quinson
1106 - Fix some stupid bug preventing cbps (callback postit) from working
1108 2004-07-21 Martin Quinson
1109 - Some documentation cleanups
1110 - remove the useless last argument of msgtype_declare
1111 - rename the Virtu functions to fit into the 'os' namespace
1112 - move headers src/include -> src/include/gras/ and stop fooling with
1113 gras -> . symbolic link
1114 - make distcheck is now successful
1116 2004-07-19 Martin Quinson
1118 - Build shared library also
1119 - Install html doc to the right location
1120 - stop removing maintainer files in make clean
1121 - build tests only on make check
1123 2004-07-13 Martin Quinson
1125 - No major issue in previous version => change versionning schema
1126 - Re-enable little64 convertion test now that Abdou kindly regenerated the
1127 corresponding dataset.
1129 2004-07-11 Martin Quinson
1131 - Get it working with any kind of structure (we can compute the padding
1132 bytes remotely for all the architectures I have access to)
1133 - Implement the structure parsing macro (still not quite robust/complete)
1134 - Improvement to the remote testing toysuite
1136 2004-07-10 Martin Quinson
1137 [autoconf mechanism]
1138 - get ride of a bunch of deprecated macros
1139 - actually run the test for two-compliment, not only compile it :-/
1140 - test whether the structures get packed (and bail out if yes. Damn.
1141 Alignment is a serious matter)
1142 - test whether the structures get compacted (but respecting the alignment
1143 constraints of each types)
1144 - test whether the array fields of structures can straddle alignment boundaries
1146 - Damnit, double are bigger than float (typo in creation of 'double' datadesc)
1147 (took me 2 hours to find that bug, looking at the wrong place)
1148 - Add gras_datadesc_declare_{union,struct}_close(). They must be used
1149 before sending/receiving and are used to compute the offsets of fields
1150 - Given that padding size depend even on compiler options, keep track of
1151 alignment and aligned_size only for the current architecture. Not a big
1152 deal since we send structure fields one after the other (seems
1154 - Add the datastructure used for IEEE paper by the PBIO guys to the test
1155 program, let it work on linux/gcc/little32. portability todo.
1157 2004-07-08 Martin Quinson
1158 - import and improve remote compilation support from FAST
1159 - make sure make check works on half a dozen of machines out there
1161 2004-07-07 Martin Quinson
1162 Let's say it's version 0.0.3 ;)
1163 - Implement conversions (yuhu!)
1164 - Let it work on solaris (beside conversion, of course)
1165 - Stupid me, using rand() to generate the conversion datatests in not wise.
1167 2004-07-06 Martin Quinson
1168 - Let make dist work, since I'm gonna need it to compile on remote hosts
1169 - Let Tests/datadesc_usage write the architecture on which the file was
1170 generated as first byte.
1171 - Add PowerPC (being also IRIX64), SPARC (also power4) and ALPHA
1172 architecture descriptions.
1173 - Add datadesc_usage.{i386,ppc,sparc} files being the result of execution
1174 on those architectures.
1175 - Optimization: send/recv array of scalar in one shoot
1177 2004-07-05 Martin Quinson
1178 - YEAH! GRAS/SG and GRAS/RL are both able to run the ping example !
1180 - Plug a whole bunch of memleaks
1181 - each process now have to call gras_{init,exit}. One day, their log
1182 settings will be separated
1183 - Continue the code factorisation between SG, RL and common in Transport.
1185 2004-07-04 Martin Quinson
1187 - Redistribution between SG and RL.
1188 We wanna have to accept in SG, so move accepted related parts of RL in
1189 the common part. (more precisely, the dynar of all known sockets is no
1190 more a static in transport.c, but part of the process_data)
1192 [gras_stub_generator]
1193 - Bug fix: Do call gras_process_init from gras_init (wasnt called in RL).
1195 2004-07-03 Martin Quinson
1196 - Create a new log channel tbx containing dict, set, log, dynar (to shut
1197 them all up in one shot)
1199 - Fix the ugly case of reference to dynamic array.
1200 - New (semi-public) function gras_datadesc_size to allow the messaging
1201 layer to malloc the needed space for the buffer.
1203 - gras_socket_close now expect the socket to close (and not its address to
1204 put NULL in it after it). This is because the socket passed to handlers
1205 is one of their argument (=> not writable).
1207 - propagate the interface cleanup from last week in datadesc, ie remove a
1208 superfluous level of indirection. User pass adress of variable
1209 containing data (both when sending and receiving), and not of a variable
1210 being a pointer to the data. Let's say that I like it better ;)
1211 The price for that is constructs like "int msg=*(int*)payload" in
1212 handlers, but it's a fine price, IMHO.
1214 - Let it work in RL (yuhu)
1216 2004-06-21 Martin Quinson
1218 - porting SG plugin and SG select to new standards (works almost).
1219 - plug memleaks and fix bugs around.
1222 - cleanup the prototype of data recv and force users to specify when they
1223 want to handle references to objects. Test case working even for cycles.
1224 - plug memleaks. Valgrind is perfectly ok with this.
1226 2004-06-12 Martin Quinson
1228 - cleanup the separation between plugin and main code in plugin creation
1230 2004-06-11 Martin Quinson
1232 - Reput hook for raw sockets, needed for BW experiments
1233 - kill a few lines of dead code
1234 [Data description] Interface cleanup
1235 - gras_datadesc_by_name returns the searched type or NULL.
1236 That way, no variable is needed to use a type desc once, which makes
1238 - gras_datadesc_declare_[struct|union]_append_name is removed. The last
1239 two parameters were strings (field name, type name), leading to
1241 [Dicos] Interface cleanup
1242 - gras_dico_retrieve -> gras_dico_get ; gras_dico_insert -> gras_dico_set
1243 This is consistant with the dynar API.
1245 2004-04-21 Martin Quinson
1247 - Porting to new standards.
1249 - interface cleanup.
1250 There is no bag anymore, no need to take extra provision to mask the
1251 pointers behind "ID".
1252 Better splitup of functions between files create/exchange/convert.
1253 This is still a bit artificial since convert and receive are so
1254 interleaved, but anyway.
1256 - add a queued message list to procdata (the ones not matching criteria
1258 - factorize some more code between SG and RL wrt procdata
1260 - use gras_exit in example to track memleaks
1261 - get rid of gs_example now that GS is properly integrated into gras
1262 - update run_test to integrate the lastest tests (datadesc)
1264 - rename WARNINGn macros to WARNn since it prooved error-prone
1266 2004-04-19 Martin Quinson
1268 - register init/exit functions within gras module mechanism
1269 - send/receive function.
1270 Convertion is not implemented, but short-cutted if not needed.
1271 struct/array elements are sent one by one (instead of block-wise), but
1272 nobody really cares (yet). Get a prototype before optimizing.
1273 - tests (using a file socket) for DD send/receive on:
1274 - base types: int, float
1275 - array: fixed size, string (ie ref to dynamic string)
1276 - structure: homogeneous, heterogeneous
1277 - chained list, graph with cycle
1278 Believe it or not, valgrind is not too unhappy with the results. The
1279 cycle happily segfaults, but the others are ok. And I'm sick of pointers
1283 - Bugfix when using a filename explicitely (instead of '-')
1285 2004-04-09 Martin Quinson
1287 - factorize more code between RL and SG in socket creation
1288 - Complete the implementation and tests of:
1290 o file (only in RL, and mainly for debugging)
1292 I lost 3 days to design a portable address resolver, and then decided
1293 that the prototype mainly have to run on my box.
1294 Addressing portability too early may be like optimizing too early :-/
1296 - use gras_init in the Tests instead of the crappy parse_log_opt
1297 (the latter function is removed)
1298 [Conditional execution]
1299 - New functions: gras_if_RL/gras_if_SG (basic support for this)
1300 [Code reorganisation]
1301 - Get rid of libgrasutils.a since it makes more trouble than it solves.
1302 Build examples against the RL library, since there is no way to disable
1303 its creation for now.
1305 For information, the beginning of coding on GRAS was back in june
1306 2003. I guess that every line has been rewritten at least twice since