1 SimGrid (3.3.2-svn) unstable; urgency=low
4 * Implement MPI_Waitany and MPI_Waitall
7 * Add xbt_set_get_by_name_or_null() [Silas De Munck]
8 * Add xbt_graph_node_get_outedges() [Silas De Munck]
10 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
12 SimGrid (3.3.1) stable; urgency=low
15 * Implement a --cfg-help to show existing configuration variables
16 * Build chain do not require doxygen in maintainer mode
19 * fix a bug on struct sizeof computation, which prevented the
20 exchange of arrays of structs in some conditions
21 - added a regression test about this in datadesc_usage
22 * Allow the exchange of 0-long dynamic vectors.
23 - for that, use -1 as indicator of dynamic size instead of 0
24 - This implied to change any size from unsigned long to long,
25 reducing a bit communication abilities, but I guess that with
26 64bits being quite common, this is more than enough.
27 - This also induce a protocol change, thus bumping network protocol
28 version from 0 to 1 (if we have external users, we have to get
29 clean on that point too ;)
30 - added two regression tests about this in datadesc_usage
31 * Be more verbose when propagating local exceptions
33 * Display the status of simulated processes when receiving SIGINT in
37 * Allow to control the simulation from a trace file.
38 New functions MSG_action_register() and MSG_action_trace_run()
39 The first one allows to associate a function execution to each
40 kind of action while the second one parses a trace file and
41 triggers the corresponding actions within the system.
42 For now, only a toy example is provided in examples/msg/actions
43 * Add an exemple of process migration in examples/msg/migration
44 * Fix a bug in task exchange which broke MSG_task_get_sender()
45 Add a teshsuite regression test for that.
46 [Bug: if MSG_task_get_sender() is called after sender exit,
48 * Fix a bug which prevented suspend/resume to work properly
49 * Display the status of simulated processes when receiving SIGINT
50 This fixes a regression of v3.3. due to the introduction of SIMIX
51 * Bug fixing in failure management:
52 - trace could not start by a failure at time 0
53 - failure during communications were not working
56 * Add SIMIX_process_set_name() to change the name of the current
57 process in the log messages.
58 * Store smx_hosts in a dict since we only retrieve them by name
59 * Move the configuration infrastructure to surf
62 * Move the configuration infrastructure to surf
65 * Massive internal cleanups:
66 - Store internal structures on processes instead of hosts (allows
67 to have more than one process per host, in addition of being more
69 - Cleanup the initialization/finalization process
70 - Kill a whole bunch of unneeded synchronization:
71 processes run in exclusive manner within the simulator
72 - Move queues from global tables to process data fields
74 - now accept -platform and -hostfile arguments
75 - Pass the right rank value to processes according to the hostfile
76 * Compile the examples by default, and use them as regression tests
77 * Implement MPI_Wtime()
78 * Change the reference speed to a command line option
81 * TCP_gamma can now be specified as command line option using
82 --cfg=TCP_gamma:10000000.0
83 * Change the --surf-path cmd line option into --cfg=path:
86 * Also include strbuff from xbt.h public header
87 * xbt_ex_display(): do not free the exception after displaying
88 This allows to do more with the given exception afterward.
89 Users should call xbt_ex_free() themselves.
93 Portability report of this version:
94 * Main portability targets:
95 - Linux(debian)/x86/context
96 - Linux(debian)/x86/pthreads
97 - Linux(debian)/amd64/context
98 - Linux(debian)/amd64/pthreads
99 These targets fail about 1/10 of times on gras/pmm, but we believe
100 that this is because of the test, not because of simgrid.
101 amok/saturate_sg fails even more rarely, and the test may not be
104 - Mac OSX Leopard/x86/context
105 The test suite still spits tons of errors because some obscure
106 force prevents us from removing the temporary directories
107 arguing that they still contain some metadata I've never heard of.
108 Smpi fails because seq is not installed.
109 Everything seems to work properly beside of that.
112 - AIX version 5.3 (both contexts and pthread)
113 Smpi still fails there because mktemp is not installed.
114 XML inclusions seems rosty on AIX.
116 * Windows: it's still lagging behind. If you want to help, please
119 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Sat, 27 Jun 2009 00:14:30 +0200
121 SimGrid (3.3) stable; urgency=high
125 * JAVA BINDINGS for MSG (you dreamt of them? We made them)
128 * Introduce the SIMIX module: factorize code between MSG and GRAS.
131 Until now, GRAS were using MSG as an interface to SURF. It was
132 quite difficult because both interface have several differences
133 (MSG channels vs GRAS sockets were the most notable point).
135 This also opens the gate to SMPI (which should occur soon) and speed
136 up simulations by to 40% (even if it were not the main goal).
138 **************************************
139 *DO NOT MIX 3.2 RESULTS WITH 3.3 ONES* Simix may changes simulations!
140 **************************************
141 The point is that events occuring at the exact same timestamp are
142 not scheduled in the same order with the old and new version. This
143 may be enough to completely change the execution of simulations in
144 some cases. Sorry for the inconvenience.
146 * Cleanup and upgrade the XML format to push further scalability
147 issues (check http://hal.inria.fr/inria-00256883/ for more info)
149 * Improve the testing infrastructure with tesh. Now a very large part of
150 the code is tested not only by being run but also by checking that the
151 output match an expected output [Mt].
153 * Move on to FleXML v1.7 for the embeeded XML parsers. This version
154 is really less memory-demanding, which should allow you to use
155 larger files in SimGrid [AL].
157 * Inform valgrind about our contextes, so that it becomes usable
158 with the default (and more effecient) version of SimGrid
159 [contributed by Sékou Diakite, many thanks]
162 * Introduce a listener thread in charge of receiving incomming
163 messages from the network. It allows to overlap communication and
164 computation but most notably, it removes some stupid deadlocks due
165 to the fact that so far, a process could not send and receive at
166 the same time. This made most non trivial communication schema
168 * Convert the PIDs from long int to int to match the MSG ones (and
170 * New function: gras_agent_spawn() to launch a new process on
171 current host. Only working in simulation for now. [Mt]
172 * New function: gras_os_hostport() returning a constant form (ie,
173 not needing to be freed) of "gras_os_hostname():gras_os_myport()"
176 * Make the backtrace of exceptions more human readable [Mt]
177 * New module: xbt/str [Mt]
178 a ton of string utility functions (split, join, printf to a newly
179 allocated buffer, trim, etc)
180 * New module: xbt/hash [Mt]
181 SHA1 hashing algorithm (more to come if needed)
182 * New module: xbt/synchro [Mt]
183 synchronization tools (mutex and conditions) working the same way
184 in simulation and in real life (mainly useful for GRAS, but not
186 * New module: xbt/queue [Mt]
187 classical producer/consumer synchronization scheme
188 * xbt_dynar_new_sync() creates a synchronized dynar. All access
189 (using the classical functions will get serialized) [Mt]
190 * Make dictionary internal table dynamic. No need to specify its size
191 anymore; functions xbt_dict_new_ext() and xbt_dict_hashsize_set()
193 * Make sure the log channels are organized as a tree under windows
194 (because of ANSI C compatibility issue, any channel were child of
198 * Cleaned many thing in surf and fixed a few bugs [AL].
199 * Add a nice command line configuration mechanism to compose models [AL].
200 * Add a new model for parallel tasks (ptask_L07) that is less buggy than
201 the previous one (KCCFLN05). It relies on something that looks like
202 a max-min sharing mechanism but cannot be written as such. A new solver
203 was thus designed [AL].
204 * Add a new solver to lmm. Based on Lagrange optimization and
205 gradient-based descent, it enables to efficiently maximise systems s.a
207 sum f_i(x_i) s.t Ax<= b with A_{i,j}>=0 and f_i a concave function.
209 This solver enables to propose two new network models for TCP Reno and
210 TCP Vegas based on Low's work. These models still need to be fully
211 tested though [Pedro Velho].
214 * Bug fix in SD_simulate. Now the time bound given as argument is
216 * Use the new parallel task model (ptask_L07) as default.
217 * Use the SURF command line configuration mechanism.
218 * 0-size tasks (for synchronization) should now work.
220 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Sun Apr 12 05:20:36 CEST 2009
222 SimGrid (3.2) stable; urgency=high
226 We still experience issues on this platform, but we believe that at
229 GRAS API BREAKAGE (for simplification purpose, sorry):
230 * the gras_msgtype_by_name is not used anymore. Instead of
231 gras_msg_send(toserver, gras_msgtype_by_name("request"), &request);
232 you can write (and must)
233 gras_msg_send(toserver, "request", &request);
234 - If you still want to pass a gras_msgtype_t to the function (to cache
235 the type and avoid the lookup time), use the gras_msg_send_() variant.
236 - Impacted functions:
237 gras_cb_register, gras_cb_unregister, gras_msg_send, gras_msg_wait,
238 gras_msg_rpccall, gras_msg_rpc_async_call, gras_msg_wait_ext
239 * The callbacks are now expected to return 0 when everything went well
240 (just like the main() function)
242 GRAS new features and improvements:
243 * New module mecanism where user code can use per process globals [Mt]
244 This is similar to gras_userdata_*() functions, but for libraries. It
245 factorize some code developped over and over in the examples and AMOK.
246 It has still to be documented and used (only amok/peermanagement is
248 * Fix a vicious bug in the TCP buffering mecanism which leaded to message
249 loss when they were small enough to fit into the buffer and sent quickly
250 enough so that they can all get received in one shoot.
251 * gras_datadesc_by_name and gras_msgtype_by_name: now raise an exception
252 if not found. Use the *_or_null() variant for the old semantic.
253 * In gras_msg_handle, do not discard messages without callback.
254 They are probably messages to be explicitly awaited later (ie, proofs of
255 mis-synchronization in userland since they are sent before being awaited)
257 * gras_socket_meas_send/recv: semantic changed!
258 The numerical arguments used to be (1) the total amount of data to send
259 and (2) msg_size. This was changed to (1) msg_size and (2) amount of
260 messages. This was need for the fool willing to send more than MAXINT
261 bytes on quite fat pipes.
264 * Do really rename the hostmanagement module to peermanagement. [Mt]
265 Ie, rename functions from amok_hm_* to amok_pm_*. This breaks the API,
266 but this is rather new and this was documented in the module
267 documentation (poor excuses, I admit)
268 * Bandwidth measurement semantic changed! This follows the changes to
269 gras_socket_meas_send/recv explained above.
272 * A sequential mode has been added to the workstations. When a workstation
273 is in sequential mode, it can execute only one task, and the other tasks
274 are waiting in a FIFO. [Christophe Thiery]
277 * The KCCFLN05 workstation model now handles parallel tasks. It is the
278 model for SIMDAG. [Christophe Thiery]
279 * Bug fix in the maxmin solver: Some values were close to 0 instead of
280 equal to 0, which caused some bad behaviors in
281 saturated_constraint_set_update. I now use a threshold mechanism like in
285 * When running manually src/testall, you select specific units [Mt]
286 testall is the result of our cunit mecanism, and should replace all
287 the scripty thingy around since bash don't run easily on billware.
289 * A mallocator system has been added. [Christophe Thiery]
290 Mallocators allow you to recycle your unused objects instead of freeing them
291 and allocating new ones.
293 Documentation update:
294 * FAQ reworking + New FAQs:
295 - "Valgrind spits tons of errors!" [Mt]
296 - "How to repport bugs" [Mt]
297 - "Cross-compiling a Windows DLL of SimGrid from Linux" [Mt]
298 - "What is the difference between MSG, SimDag, and GRAS?" [Mt]
299 - Communication time measurement within MSG [AL]
300 - I experience weird communication times when I change the latency [AL]
303 - an introduction to the framework and to the used communication model
304 - an initiatic tour introducing the most proheminent features:
306 . Lesson 0: Installing GRAS
307 . Lesson 1: Setting up your own project
308 o Part 2: Message passing
309 . Lesson 2: Exchanging simple messages
310 . Lesson 3: Passing arguments to the processes (in SG)
311 . Lesson 4: Attaching callbacks to messages
312 . Lesson 5: Using globals in processes
313 . Lesson 6: Logging informations properly
314 . Lesson 7: Using internal timers
315 . Lesson 8: Handling errors through exceptions
316 . Lesson 9: Exchanging simple data
317 . Lesson 10: Remote Procedure Calling (RPC)
318 . Lesson 11: Explicitely waiting for messages
319 . Recapping of message passing features in GRAS
320 - A HOWTO section containing:
321 o HOWTO design a GRAS application
322 More are due, of course. They will come latter. In the meanwhile, you can
323 check the examples which are still here.
325 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri Mar 16 21:11:46 CET 2007
327 SimGrid (3.1) stable; urgency=high
331 There was a stack corruption somewhere, visible only when optimizing
332 with these versions. [Vince]
335 * This is a NEW module! SimDAG (SD for short) is a revival of the old SG
336 module that enabled to play with Directed Acyclic Graphs. It is built
337 directly on top of SURF and provides an API rather close to the old
338 SG. Some old codes using SG are currently under rewrite to check that
339 all needful functions are provided. [Christophe Thiery]
342 * Complete rewrite of the KCCFLN05 workstation model. It is now an
343 extension of the classical CLM03 model that gracefully handles
344 failures. This is now the default model for MSG and GRAS. It doesn't
345 handle parallel tasks yet though. [AL]
346 * Bug fix: Weights were not correctly set in the network part.
347 WARNING: This may have resulted in incorrect results with simulations
348 where there are more than one flow on a given link. [AL]
351 * After a (long ?) discussion on simgrid-devel, we have decided that the
352 convention we had on units was stupid. That is why it has been decided
353 to move from (MBits, MFlops, seconds) to (Bits, Flops, seconds).
354 WARNING : This means that all previous platform files will not work as
355 such with this version! A warning is issued to ask users to update
357 A conversion script can be found in the contrib module of the CVS, under
358 the name contrib/platform_generation/surfxml_update.pl [MQ]
361 * Bug fix: Processes were started in reverse order, wrt deployment file.
362 WARNING: if your code relies on this bug, please fix it. [AL]
363 * Bug fix: Add a test in MSG_task_execute to stop whenever a task is
364 being executed on two different locations. [AL]
365 * Bug fix: Failures are now better supported thanks to Derrick's tests
366 (there was many failure situations I hadn't thought of and that weren't
367 correctly handled). [AL]
368 * New function: MSG_host_is_avail indicates you whether a given m_host_t
372 * New! a real RPC mecanism, as it ought to be since too long. [MQ]
373 Exception occurring on server-side are propagated back to client (!).
375 API CHANGE: the callback changed their prototype. Change:
376 int my_handler(gras_socket_t expeditor, void *payload_data) {
378 int my_handler(gras_msg_cb_ctx_t ctx , void *payload_data) {
379 gras_socket_t expeditor=gras_msg_cb_ctx_from(ctx);
381 * New! function: gras_msg_handleall to deal with all messages arriving
382 within a given period.
383 * New! function: gras_socket_server_range to get a server socket in a
384 range of port numbers (ease to avoid port number conflicts) [MQ]
385 * New! gras processes display their backtrace when they get a SIGUSR1
386 or when Ctrl-C is pressed. Use Ctrl-C Ctrl-C to exit.
387 Sweet to debug RL processes [MQ]
391 - Do not force experiment sizes to be expressed in kb, or it becomes
392 impossible to measure the latency this way (needs one byte-long tests)
393 WARNING: this changes the amok_bw_* function semantic. [MQ]
394 - Implements the link saturation stuff. [MQ]
395 * Peer management module:
396 New! module factorizing code that we wrote over and over [MQ].
399 * New module: cunit (my jUnit implementation in ansi C) [MQ]
400 - Test units are placed directly into the library code, they get extracted
401 automatically and placed into the src/testall binary.
402 - Convert most of the XBT tests to this system.
403 * New functions: xbt_dynar_getfirst_as() and xbt_dynar_getlast_as() [MQ]
404 * XML parsing: rewrote parts of flexml to enable multiple xml parsers to
405 live in the same C code. This required to change a little bit the API
406 of surfxml parsing but shouldn't be an issue for end-users. [AL]
407 * New module: sparse graph structure with basic algorithms (this is work
408 in progress and the API is not considered to be frozen yet). [AL]
409 * Display more information on backtraces: source line & function names are
410 now displayed just like valgrind does (rely on addr2line tool) [MQ]
411 * New function: xbt_backtrace_display(). Sweet while debuging [MQ]
412 * Reworked a little bit some #include statements to load only required
413 headers. Some user code that relied on SimGrid to include stdlib or
414 stdio may need to include it by themselves. [AL]
415 * Fixed xbt/log.h. A missing SG_BEGIN_DECL prevented compilation with
417 * Renamed xbt_host_t into xbt_peer_t since it betterly describes what I
418 meant. This breaks the API of AMOK and of xbt/config. Sorry about this,
419 but I guess that almost nobody used those parts. [MQ]
421 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 14 Jul 2006 01:32:27 +0200
423 SimGrid (3.0.1) stable; urgency=low
426 * Unfortunately, I had missed 5 misnamed functions:
427 xbt_fifo_item_t xbt_fifo_newitem(void);
428 void xbt_fifo_freeitem(xbt_fifo_item_t);
429 xbt_fifo_item_t xbt_fifo_getFirstItem(xbt_fifo_t l);
430 xbt_fifo_item_t xbt_fifo_getNextItem(xbt_fifo_item_t i);
431 xbt_fifo_item_t xbt_fifo_getPrevItem(xbt_fifo_item_t i);
432 They're now deprecated. Please use their new versions:
433 xbt_fifo_item_t xbt_fifo_new_item(void);
434 void xbt_fifo_free_item(xbt_fifo_item_t);
435 xbt_fifo_item_t xbt_fifo_get_first_item(xbt_fifo_t l);
436 xbt_fifo_item_t xbt_fifo_get_next_item(xbt_fifo_item_t i);
437 xbt_fifo_item_t xbt_fifo_get_prev_item(xbt_fifo_item_t i);
439 * Bugfix: really disconnect fifo items which are remove_item()ed [AL]
440 * Documentation: xbt_log module unmercifully reworked [MQ]
441 * Bugfix: there was a problem with the ending of contexts with
442 the pthread backend. It caused some weird deadlock or behavior
443 depending on the pthread implementation. [AL]
444 * Bugfix: get the exceptions raised in the simulator repport where
445 and why they come from when they are not catched in time [AL, MQ]
448 * Bugfix: Do repport the error when two non-connected hosts try to
449 exchange data (Thanks to Flavien for stumbling into this one) [AL]
452 * Add additionnal checkings on communications. Assert that two
453 communicating hosts are connected by a set of links... [AL]
456 * Add additionnal checkings on channel values in communication [AL]
457 * New: MSG_task_get_source to see on which host a task was generated [HC]
458 * New: int MSG_task_probe_from_host(int channel, m_host_t host): returns
459 the number of tasks waiting to be received on channel and sent
461 * New: MSG_error_t MSG_task_get_from_host(m_task_t * task, int channel, m_host_t host);
462 waits for the first task coming from a given host.. [AL]
464 GRAS new functionnalities: [MQ]
465 * Enhance the parsing macro to allow the size of multidimentional objects
466 to be given thru annotations.
467 * New example (and documentation): Matrix Multiplication a la RPC
468 (as when I was young!) and fix a bunch of bugs found on the way.
470 GRAS performance improvements: [MQ]
472 * Reduce the amount of cbps creation/destruction by making it static to
473 datadesc_send/recv() and using a (newly created) cbps_reset (based on
476 * Change libdata to a set so that we can search for stuff by ID (and thus
477 reduce the insane amount of dict lookups)
480 * Actually implement gras_datadesc_copy() so that we don't have to mimick
481 RL communication on top of SG since it's so uneffective.
482 It may also be used for inter-thread communication in RL, one day.
483 * Use gras_datadesc_copy() to exchange messages on top of SG
485 - improve message exchange performance on top of SG
486 - deprecate transport_plugin_sg.c:gras_trp_sg_chunk_send() & recv()
487 * Don't exchange on the network the size of the used part of buffer,
488 instead, specify the possible buffer size to read().
490 - reduces the amount of read/write calls (one pair per exchange)
491 - reduces the amount of exchanged data (the size)
492 - allows to retrieve all arrived data on receiver side, if we don't need
493 it right now (subsequent read will peek the buffer)
494 - allows the receiver to proceed with the begining of the stream before
495 everything is arrived
496 - make it possible to build an iov transport (using readv/writev)
498 - take care of the data with non-stable storage (like stacked data),
500 * If possible, TCP send uses vector I/O (when writev() is here)
501 - Don't use it for receive since we send data sizes and data on the
502 same stream, so we wouldn't be able to chain large amount of chunks
503 before having to flush the stuff to read the size.
504 * Rework the transport plugin mecanism to simplify it and reduce the
505 amount of pointer dereferencement when searching for the right function
508 * I guess that now, we do almost as few system calls as possible while
509 doing as few data copy as possible.
511 To improve it further, we could try to send all the sizes first and then
512 all the data (to use iov on receiving size), but it's only a partial
513 solution: when you have 2 dimensional data, the sizes of the second
514 dimension is data of the first dimension, so you need 3 streams.
516 I'm not sure the potential performance gains justify the coding burden.
518 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 21 Oct 2005 14:42:20 +0200
520 SimGrid (3.00) stable; urgency=high
523 * New! Give the possibility to hijack the surf parser and thus bypass
524 MSG_create_environment and MSG_launch_application. Have a look at
525 examples/msg/msg_test_surfxml_bypassed.c to see how it can be done.
527 -- Arnaud Legrand <simgrid-devel@lists.gforge.inria.fr> Sat, 20 Aug 2005 23:25:25 -0700
529 SimGrid (2.96) unstable; urgency=low
534 * New! Exception handling with setjmp or such (code from OSSP ex) [MQ]
535 This deprecates the xbt_error_t mecanisms.
536 It modifies (simplifies) all XBT and GRAS API.
537 MSG API keeps unchanged (exceptions raised by XBT are catched from
538 within MSG and masked with existing error handling facilities)
541 * New! Add a FATPIPE model. [AL]
542 * New! Add a parallel task model. [AL]
543 * New! Add automatically a loopback interface (in the default
544 network model) if none was precised.
547 * Bugfix: MSG_process_resume now works with the current running process.
549 * New! Add MSG_parallel_task_create and MSG_parallel_task_execute. [AL]
550 * Modification of MSG_task_get_compute_duration. Once a task has been
551 processed, the value returned by this function is now equal to 0. [AL]
552 * New! Add double MSG_task_get_remaining_computation(m_task_t task) and
553 MSG_error_t MSG_task_cancel(m_task_t task). Add a state
554 (MSG_TASK_CANCELLED) to MSG_error_t corresponding to the cancelation
555 of a m_task. For now, MSG_task_cancel only works with computation
557 * New! Add double MSG_get_host_speed(m_host_t h) that returns the speed
558 of the processor (in Mflop/s) regardless of the current load on the
560 * API Change: use proper naming convention for MSG_getClock and
561 MSG_process_isSuspended: MSG_get_clock and MSG_process_is_suspended.
563 * New! Add void MSG_task_set_priority(m_task_t task, double priority).
564 This function changes the priority of a computation task. This priority
565 doesn't affect the transfer rate. A priority of 2 will make a task
566 receive two times more cpu power than the other ones. This function
567 has been added to suit the needs of Nguyen The Loc and hasn't been that
568 much tested yet. So if it fails, please report it and send me your code.
570 * API Change: removed all functions and types that were marked "deprecated"
571 since many months. Renamed MSG_global_init_args to MSG_global_init.
573 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Mon, 8 Aug 2005 17:58:47 -0700
575 SimGrid (2.95) unstable; urgency=low
578 * Steal some nice code to GNU pth to fix context detection and usage [AL]
579 * Cleanup in the xbt_config API; add configuration callbacks. [MQ]
580 * Cleanup in the initialization API: the unused "defaultlog" is dead. [MQ]
583 * Bugfix: Allow absolute paths for platform description files [MQ]
584 * Bugfix: do free the variables after use. Leads to drastic performance
586 * Implement max_duration (ie, timeouts) on resources [AL]
589 * Implement MSG_config to configure MSG at runtime. xbt_cfg test on a real
591 * Implement MSG_channel_select_from() to help GRAS now that SURF provide
592 the needed support (timeouts) [AL]
595 * Implement measurement sockets. You can now get the bandwidth between two
596 hosts thanks to AMOK (see below). [MQ]
597 * gras_datadesc_dynar() builds a dynar type descriptor, allowing to send
598 dynar over the network (yeah) [MQ]
599 * Real (even if simplistic) implementation of gras_os_myname() on RL [MQ]
600 * simple/static token-ring example. [Alexandre Colucci and MQ]
601 * Use MSG_channel_select_from() and remove the *slow* hack we had to put
605 * Differentiate the types "char[22]" and "unsigned char[22]" in automatic
606 type parsing. "short" and "long" modifiers were also ignored; other
607 modifier (such as reference level) are still ignored. [MQ]
608 * Embeed the buffer size within the buffer itself on SG. [MQ]
609 That way, send() are atomic and cannot get intermixed anymore (at least
610 the ones which are less than 100k; bigger messages still have the issue)
611 * Array size pushed by the field, not by the field type (or each
612 and every long int will push stuff to the cbps) [MQ]
613 * use select() to sleep since it allows to portably sleep less than one
616 GRAS (minor cleanups)
617 * <project>.Makefile.local (generated from gras_stub_generator) |MQ]:
620 * Type Callbacks now receive the gras_datadesc_type_t they work on as argument.
621 * type category 'ignored' killed as it was never used and were difficult
623 * whether a type can cycle or not is now a flag, leaving room for more
624 flags (as "ignored", if we feel the need one day ;)
625 * Rename raw sockets to measurement sockets since "raw" has another
626 meaning in networking community.
629 * Advanced Metacomputing Overlay Kit introduction. It is based over GRAS
630 and offers features not belonging to GRAS but that most applications
631 need. One day, it may be a set of plugins loadable at runtime.
632 * New module: bandwidth
633 bandwidth measurement between arbitrary nodes running this module. [MQ]
635 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Thu, 30 Jun 2005 16:29:20 -0700
637 SimGrid (2.94) unstable; urgency=low
639 The first beta release of SimGrid 3 !
643 * Update the main page and the FAQ. Adding references to gforge.
646 * Add a gras_os_getpid function.
649 * Add MSG_task_get_compute_duration() and MSG_task_get_data_size()
650 * Extend the logs so that they also print PID, hostname, date, ... if
652 * Convert the MSG example to the use of xbt_logs instead of PRINT_MESSAGE,
653 and kill the old version which were in testsuite/
654 * Rewrite tools/MSG_visualization/colorize.pl for using with logs instead
658 * Add xbt_os_time(). As the rest of xbt/portability, this is not public
659 for users. Instead, each programming environment (GRAS, MSG,...) use it
660 when needed to provide such a feature to users.
661 Don't shortcut the mecanism or you will also shortcut the virtualization
662 you need on the simulator.
666 * Cleanups in configury with regard to compile optimization/warning flags.
667 Also add -fno-loop-optimize to any powerpc since it's the optimization
668 killing gcc (< 3.4.0).
669 * Doxygen cleanups: move MSG examples, kill the second Doxygen phase
670 needed by MSG examples complications
671 * Borrow configury beautifications from PHP
674 * Bugfix: XBT_LOG_NEW_DEFAULT_CATEGORY now compiles without compiler
675 warning (thanks loris for stumbling into this one).
676 * Bugfix: stop loading private headers (gras_config.h) from the public
680 * Change SIMGRID_INSTALL_PATH to GRAS_ROOT in Makefiles generated for user.
681 * Rename gras_get_my_fqdn to gras_os_myname and implement it in the simulator
682 RL would imply a DNS resolver, which is *hard* to do in a portable way
683 (and therefore delayed).
684 * Implement a real timer mecanism and use it in timing macros. This allows
685 to avoid rounding errors and get a 0.000005 sec precision in timing
686 macros. While I was at it, various cleanups:
687 - allow to declare more than one timed section per file (fix a stupid bug)
688 - move some private declaration to the right place
689 - merge conditional execution and timing macros into emulation module
690 - document the module
691 - make sure the module cleanups its mess on gras_exit
692 * Documentation improvements:
693 - (new) how to compile applications using GRAS
694 - (new) emulation support (timing macros)
696 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 13 May 2005 10:49:31 +0200
698 SimGrid (2.93) unstable; urgency=low
700 Alpha 4 on the path to SimGrid 3 (aka the "neuf-trois" version)
703 - Use Paje properly where used. Still to be sanitized properly.
704 - Portability fix: Add an implementation of the contexts using pthread
708 - Add xbt_procname(): returns the name of the current process.
709 Use it to show the current process's name in all logging.
711 - fix detection of older flex version and the reaction, since we do
712 depend on modern ones (we use lex_destroy)
713 - Better separation of SG and RL in the libs: remove all simulation code
714 from libgras. As a result, this lib is now only 200k when stripped.
715 Some of the xbt modules may also be duplicated (two sets and such) and
716 should be cleaned/killed before SG3.
717 - Insist on using xlC on AIX because of weird problems involving gcc there.
718 - Cleanup the make remote stuff. This is now done by scripts
719 tools/graspe-{master,slave} (GRAS Platform Expender). This is still
720 mainly for our private use, but we're working on changing them to user
723 - Bugfix: flush the socket on close only if there is some *output*.
724 - Bugfix: flush idempotent when there's nothing to send (don't send size=0)
726 - Add MSG_task_get_name. The task names are mainly for debugging purpose,
729 -- SimGrid team <simgrid2-users@listes.ens-lyon.fr> Fri, 4 Mar 2005 14:32:37 -0800
731 SimGrid (2.92) unstable; urgency=low
733 Alpha 3 on the path to SimGrid 3
737 - New! First try of benchmarking macros.
738 - New! First try so that gras_stub_generator generate deployment and
739 remote compilation helpers.
741 - Bugfix: Initialization fix in msg_test.
745 - Bugfix: applied patch to lexer so that it doesn't need a huge heap.
747 - Bugfix: let dicts work with NULL content (_foreach didn't) and cleanups
749 - API Change: gras_os_sleep to take the amount of seconds as a double.
750 Accepting an int was error prone since it was the only location where
751 seconds were coded as such. It leaded to damn rounding errors.
752 - Bugfix: Hard to belive that timers ever worked before this.
754 -- SimGrid team <simgrid2-users@listes.ens-lyon.fr> Wed, 23 Feb 2005 22:09:21 +0100
756 SimGrid (2.91) unstable; urgency=low
758 Alpha 2 on the path to SimGrid 3
762 - Bug fix in the lmm_solver.
764 - New! Interface to Paje (see http://www-id.imag.fr/Logiciels/paje/)
765 through the function MSG_paje_output.
766 - New! Introducing two new functions MSG_process_kill() and MSG_process_killall().
767 - It is possible to bound the rate of a communication in MSG with
768 MSG_task_put_bounded() (was already in the previous version but I had forgotten
769 to write it in the changelog).
770 - Bug fix to let GRAS run on top of MSG until we move it directly on top
775 - Various cleanups to the autotools stuff
776 - Begin to move Gras examples to examples/gras/
777 - Let make distcheck work again (yeah!)
779 - documentation overhauled using doxygen.
780 gtk-doc-tools is dead in SimGrid now.
781 - Automatically extract all existing logging categories, and add the list
782 to the documentation (long standing one, to say the less)
784 - Cleanup the known architecture table. Reorder the entries to group what
785 should be, and use a more consistent naming scheme.
786 (some of the test dataset are still to be regenerated)
787 - New! Allow library to register globals on each process just as userdata
789 This is implemented using a xbt_dict and not a xbt_set, so we loose the
790 lookup time (for now).
791 Use it in msg and trp.
792 This cleans a lot the internals and helps enforcing privacy of the
793 headers between the gras components.
794 - New! Add a timer mechanism, not unlike cron(8) and at(1).
795 - Bugfix: gras_os_time was delirious in RL.
796 - Bugfix: gras_trp_select/RL don't run into the wall when asked to select
798 - Reenable GRAS now that it works.
800 -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 14 Feb 2005 14:02:13 -0800
802 SimGrid (2.90) unstable; urgency=low
804 Alpha 1 on the path to SimGrid 3
806 * It is a long time since the last release of SimGrid. I'm sorry about
807 that but as I had told you, I was rewriting a lot of things. I apologize
808 to those who had been reporting bugs to me and that I had not answered.
809 If your bug is still in the new version, please tell me. Here is a
810 summary of the main changes.
812 * REVOLUTION 1: The SimGrid project has merged with the GRAS project
813 lead by Martin Quinson. As a consequence SimGrid gains a lot in
814 portability, speed, and a lot more but you'll figure it out later.
815 SimGrid now comprises 3 different projects : MSG, GRAS and SMPI.
816 I wanted to release the new MSG as soon as possible and I have
817 broken GRAS, which is the reason why, for now, only MSG is fully
818 functional. A laconic description of these projects is available
819 in the documentation.
821 * REVOLUTION 2: I have removed SG and I am now using a new simulation
822 kernel optimized for our needs (called SURF but only the developers
823 should use it). Hence, MSG is now roughly 30 times faster and I think
824 that by rewriting a little bit MSG, I could event speed it up a little
825 bit more. Beside the gain in speed, it is also much easier to encode a
826 new platform model with SURF than it was with SG. More to come...
828 * REVOLUTION 3: I have tried to change a little as possible the API of
829 MSG but a few things really had to disappear. The main differences
830 with the previous version are :
831 1) no more m_links_t and the corresponding functions. Platforms are
832 directly read from a XML description and cannot be hard-coded
833 anymore. The same format is used for application deployment
834 description. The new format is described in the documentation.
835 Have a look in tools/platform_generation. There is a tiny script
836 that converts from the old platform format to the new one. Concerning
837 the application deployment format, parsing the old one is tricky.
838 I think most of you should however be able to convert your files. If
839 it is really an issue, I can write a C code that does the conversion.
841 2) the toolbox tbx does not exist anymore. We now have a library
842 with much more data-structures but without the hash-tables (we have
843 dictionaries that are much faster).
845 -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 31 Jan 2005 10:45:53 -0800
847 *****************************************************************************
848 * Follows the old GRAS changelog. It does not follow the same syntax, but I *
849 * don't feel like converting the oldies. (Mt) *
850 *****************************************************************************
853 Version 2.90: "the long awaited one"
854 - Finished rewriting and debugging MSG. Rewrote the documentation.
855 - disable GRAS for now since it needs to be ported to the newest SG
858 - Finish the port to windows (using mingw32 for cross-compile)
861 - Main loop and datastructures of SURF. A cpu resource object is
862 functional. Surf can thus be used to create cpu's with variable
863 performance on which you can execute some actions.
865 2004-11-15 Martin Quinson
866 - Port to ARM. Simply added the alignment and size descriptions. Should
867 work, but the ARM machines are so slow that I didn't had the opportunity
868 to 'make check' over there yet.
870 2004-11-15 Arnaud Legrand
871 - Trace manager now written. It uses a heap structure and is therefore
872 expected to be efficient. It may however be speeded up (particularly
873 when many events occur at the same date) by using red and black
874 trees. One day maybe...
875 - Max-min linear system solver written. It uses a sparse matrix
876 structure taking advantage of its expected use. Most operations are
877 O(1) and free/calloc are called as few as possible. The computation of
878 the minimum could however be improved by using a red and black tree
881 2004-11-03 Arnaud Legrand
882 - Rename every gras_* function that was in xbt/ to its xbt_
884 - Add a heap and a doubly-linked list to xbt
885 - Added a dichotomy to the dictionaries. make check works as well before
886 so I assume that the patch is correct. I do not know however if things
887 run effectively faster than before now. :)
889 Inclusion of the SimGrid tree in the GRAS one. The archive is renamed to
890 SimGrid, and the version number is bumped to 2.x
892 2004-10-29 Martin Quinson
893 - Introduction of the remote errors.
894 They are the result of a RMI/RPC on the remote machine.
895 ErrCodes being scalar values, you can't get the host on which those
896 errors did happen. Extending the error mechanism as in Gnome is possible.
897 No idea yet whether it is a good idea.
899 2004-10-28 Martin Quinson
900 - Interface revolution: the Starred Structure Eradication.
901 I used to do typedef struct {} toto_t; and then handle *toto_t.
902 Arnaud (and Oli) didn't like it, and I surrendered. Now, you have:
903 - ???_t is a valid type (builded with typedef)
904 - s_toto_t is a structure (access to fields with .)
905 - s_toto is a structure needing 'struct' keyword to be used
906 - e_toto_t is an enum
907 - toto_t is an 'object' (struct*)
909 typedef struct s_toto {} s_toto_t, *toto_t;
910 typedef enum {} e_toto_t;
911 Moreover, only toto_t (and e_toto_t) are public. The rest (mainly
912 s_toto_t) is private.
914 - While I was at it, all gras_<obj>_free() functions want a gras_<obj>_t*
915 so that it can set the variable to NULL. It was so for dicts and sets,
916 it changed for dynars.
918 - Fix a bunch of memleaks in dict_remove
919 - Fix a bug in sg/server_socket opening: it failed all the time.
921 2004-10-07 Martin Quinson
922 - Speed up dynar lookup operation a bit.
924 gras_dynar_get is dead.
926 Now, you can choose between gras_dynar_get_cpy (the old gras_dynar_get
927 but should be avoided for efficiency reasons) and gras_dynar_get_ptr
928 (which gives you the address of the stored data).
930 gras_dynar_get_as is an helpful macro which allows you to retrieve a
931 copy of the data using an affectation to do the job and not a memcpy.
933 int toto = gras_dynar_get_as(dyn,0,int); rewrites itself to
934 int toto = *(int*)gras_dynar_get_ptr(dyn,0);
936 It does not really speedup the dynar test because they are
937 setting elements all the time (and look them seldom). But the dict does
938 far more lookup than setting.
940 So, this brings the dict_crash test from ~33s to ~25s (200000 elms).
942 2004-10-05 Martin Quinson
943 - Allow to (en/dis)able the cycle detection at run time.
945 Whether we should check for cycle or not is now a property of each
946 datatype. When you think there may be some cycle, use datadesc_cycle_set.
947 datadesc_cycle_unset allow to remove this property when previously set.
949 Note that the cycle detection is off by default since it impacts the
950 performance. Watch the data you feed GRAS with ;)
952 This property is hereditary. Any element embedded in a structure having it
953 set have it set for the time of this data exchange.
955 You should set it both on sender and receiver side. If you don't set it on
956 sender side, it will enter an endless loop. If you forget on receiver
957 side, the cycles won't be recreated after communication.
959 - Header reorganization.
960 Kill gras_private.h, each submodule must load the headers it needs.
962 2004-10-04 Martin Quinson
963 - Interface revolution: do not try to survive to malloc failure.
965 Now, gras_malloc and friends call gras_abort() on failure.
966 As a conclusion, malloc_error is not a valid error anymore, and all
967 functions for which it was the only gras_error_t return value are
968 changed. They now return void, or there result directly.
969 This simplify the API a lot.
971 2004-09-29 Martin Quinson
972 - Re-enable raw sockets.
973 Created by gras_socket_{client,server}_ext;
974 Used with gras_raw_{send,recv}
977 It should allow to kill the last bits of gras first version soon.
979 This is not completely satisfactory yet (duplicate code with
980 chunk_{send,recv}; a bit out of the plugin mechanism), but it should
983 - Simplify transport plugin (internal) interface by not passing any
984 argument to _server and _client, but embedding them in the socket
987 2004-09-28 Martin Quinson
988 - Finish the port to AIX.
989 autoconf was my problem (segfault within the malloc replacement
990 function. No idea why)
992 2004-09-16 Martin Quinson
993 - Fix some size_t madness on 64bit architectures.
995 2004-09-08 Martin Quinson
996 - Reduce the number of system headers loaded, overload some more system
997 calls (such as malloc to cast the result of the system one, and work
999 - Fix and reintroduce the config support
1001 2004-09-07 Martin Quinson
1002 - Source code reorganization to allow Arnaud to surf all over there.
1003 - Allow to document the logging categories.
1004 - Remove all uppercase from logging categories and useless cleanup in names.
1006 2004-08-18 Martin Quinson
1007 Version 0.6.2 (protocol not changed; API changed)
1008 - Interface cleanup: gras_msgtype_by_name returns the type (instead of a
1009 gras_error_t), and NULL when not found. Functions expecting a msgtype
1010 as argument (msg_wait; msg_send) deal with NULL argument by providing a
1011 hopefully usefull message.
1012 - Portability to prehistoric sparcs again
1014 2004-08-17 Martin Quinson
1015 Version 0.6.1 (protocol not changed; ABI not changed)
1016 - prealloc some buffers to speed things up
1018 2004-08-11 Martin Quinson
1019 Version 0.6 (protocol not changed; ABI expended)
1020 - The parsing macro can deal with the references, provided that you add
1021 the relevant annotations (using GRAS_ANNOTE(size,field_name))
1023 2004-08-09 Martin Quinson
1024 Version 0.5 (protocol not changed; ABI changed)
1025 - Allow to off turn the cycle detection code in data exchange at
1026 compilation time. It should be at run time, but I'm short of time (and
1027 the config stuff is still broken). That way, we keep dict out of the
1028 critical path, which is good because the performance is poor:
1029 - search not dichotomial yet
1030 - dynar give no way to access their content and memcpy everytime
1031 - In composed data description (struct, ref and so on), stop foolness of
1032 keeping the subtype's ID, but store the type itself. This keeps sets out
1033 of the critical path, which is good since they rely on dynar and
1034 dictionnaries. The only loose of that is that we cannot detect the
1035 redeclaration of a structure/union with another content (but I'm not sure
1036 the code detected well this error before anyway). We still can detect
1037 the redefinition discrepancy for the other types.
1038 - Use a whole bunch of optimisation flags (plus -fno-strict-aliasing since
1039 it breaks the code because of type-punning used all over the place).
1040 This breaks on all non-gcc architectures (for now).
1042 All those changes (plus the buffer of last time) allow me to gain 2 order
1043 of magnitude on cruel tests consisting of 800000 array of integers on two
1044 level of a hierarchical structure (200 secondes -> 4 secondes)
1047 - the selector of reference must now return the type it points to, not
1048 the ID of this type.
1050 2004-08-06 Martin Quinson
1051 Version 0.4 (protocol changed; ABI not changed)
1052 - Allow to pass --gras-log argument to processes in simulation mode. Really.
1053 - New debugging level: trace (under debug) to see effect of GRAS_IN/OUT
1054 - Implement a buffer transport, and use it by default (it relies on tcp in
1055 real life and on sg in simulation).
1056 That's a bit hackish since I had a new field to the structure to store
1057 its data without interfering with the subtype ones. Inheritance
1058 is tricky in C. And that's a kind of reverse inheritance with one class
1059 derivating two classes. Or maybe a game with java interfaces. Anyway,
1060 that's damn hard in C (at least).
1061 Moreover, I got tired while trying to ensure plugin separation and
1062 genericity in SG mode. MSG wants me to do weird things, so let's go for
1063 cruel hacks (temporarily of course ;).
1064 See comment in transport_private.h:71
1065 - do not include all the _interface headers in private but in the files
1066 which really need them (to cut the compilation time when they are
1069 2004-07-26 Martin Quinson
1070 Version 0.3 (protocol not changed; ABI changed)
1071 - Major overhault of the datadesc interface to simplify it:
1072 - shorted the function names:
1073 s/gras_datadesc_declare_struct/gras_datadesc_struct/ and so on
1074 - add a trivial way to push/pop integers into the cbps without malloc.
1075 This allows to make really generic sub_type description, which simply
1076 pop their size of the stack.
1077 - add a function gras_datadesc_ref_pop_arr() which does what users want
1078 most of the time: Declare a dynamic array (which pops its size of the
1079 stack) and declare a reference to it. Poor name, but anyway.
1080 - kill the post-send callback, add a post-receive one
1082 2004-07-23 Martin Quinson
1083 Version 0.2 (protocol changed; ABI changed)
1084 - add some testing for cpbs in the test cases, and fix some more bugs.
1085 This invalidate again the little64 data file, since I cannot regenerate
1087 - remove an awfull optimization in the logging stuff, allowing me to:
1088 - understand it again
1089 - learn gcc how to check that the argument match the provided format
1090 - fix all errors revealed by gcc after that
1091 - internal keys of dict are not \0 terminated. Deal with it properly in
1092 loggings instead of segfaulting when the user want to see the logs :-/
1094 2004-07-22 Martin Quinson
1095 - Fix some stupid bug preventing cbps (callback postit) from working
1097 2004-07-21 Martin Quinson
1098 - Some documentation cleanups
1099 - remove the useless last argument of msgtype_declare
1100 - rename the Virtu functions to fit into the 'os' namespace
1101 - move headers src/include -> src/include/gras/ and stop fooling with
1102 gras -> . symbolic link
1103 - make distcheck is now successful
1105 2004-07-19 Martin Quinson
1107 - Build shared library also
1108 - Install html doc to the right location
1109 - stop removing maintainer files in make clean
1110 - build tests only on make check
1112 2004-07-13 Martin Quinson
1114 - No major issue in previous version => change versionning schema
1115 - Re-enable little64 convertion test now that Abdou kindly regenerated the
1116 corresponding dataset.
1118 2004-07-11 Martin Quinson
1120 - Get it working with any kind of structure (we can compute the padding
1121 bytes remotely for all the architectures I have access to)
1122 - Implement the structure parsing macro (still not quite robust/complete)
1123 - Improvement to the remote testing toysuite
1125 2004-07-10 Martin Quinson
1126 [autoconf mechanism]
1127 - get ride of a bunch of deprecated macros
1128 - actually run the test for two-compliment, not only compile it :-/
1129 - test whether the structures get packed (and bail out if yes. Damn.
1130 Alignment is a serious matter)
1131 - test whether the structures get compacted (but respecting the alignment
1132 constraints of each types)
1133 - test whether the array fields of structures can straddle alignment boundaries
1135 - Damnit, double are bigger than float (typo in creation of 'double' datadesc)
1136 (took me 2 hours to find that bug, looking at the wrong place)
1137 - Add gras_datadesc_declare_{union,struct}_close(). They must be used
1138 before sending/receiving and are used to compute the offsets of fields
1139 - Given that padding size depend even on compiler options, keep track of
1140 alignment and aligned_size only for the current architecture. Not a big
1141 deal since we send structure fields one after the other (seems
1143 - Add the datastructure used for IEEE paper by the PBIO guys to the test
1144 program, let it work on linux/gcc/little32. portability todo.
1146 2004-07-08 Martin Quinson
1147 - import and improve remote compilation support from FAST
1148 - make sure make check works on half a dozen of machines out there
1150 2004-07-07 Martin Quinson
1151 Let's say it's version 0.0.3 ;)
1152 - Implement conversions (yuhu!)
1153 - Let it work on solaris (beside conversion, of course)
1154 - Stupid me, using rand() to generate the conversion datatests in not wise.
1156 2004-07-06 Martin Quinson
1157 - Let make dist work, since I'm gonna need it to compile on remote hosts
1158 - Let Tests/datadesc_usage write the architecture on which the file was
1159 generated as first byte.
1160 - Add PowerPC (being also IRIX64), SPARC (also power4) and ALPHA
1161 architecture descriptions.
1162 - Add datadesc_usage.{i386,ppc,sparc} files being the result of execution
1163 on those architectures.
1164 - Optimization: send/recv array of scalar in one shoot
1166 2004-07-05 Martin Quinson
1167 - YEAH! GRAS/SG and GRAS/RL are both able to run the ping example !
1169 - Plug a whole bunch of memleaks
1170 - each process now have to call gras_{init,exit}. One day, their log
1171 settings will be separated
1172 - Continue the code factorisation between SG, RL and common in Transport.
1174 2004-07-04 Martin Quinson
1176 - Redistribution between SG and RL.
1177 We wanna have to accept in SG, so move accepted related parts of RL in
1178 the common part. (more precisely, the dynar of all known sockets is no
1179 more a static in transport.c, but part of the process_data)
1181 [gras_stub_generator]
1182 - Bug fix: Do call gras_process_init from gras_init (wasnt called in RL).
1184 2004-07-03 Martin Quinson
1185 - Create a new log channel tbx containing dict, set, log, dynar (to shut
1186 them all up in one shot)
1188 - Fix the ugly case of reference to dynamic array.
1189 - New (semi-public) function gras_datadesc_size to allow the messaging
1190 layer to malloc the needed space for the buffer.
1192 - gras_socket_close now expect the socket to close (and not its address to
1193 put NULL in it after it). This is because the socket passed to handlers
1194 is one of their argument (=> not writable).
1196 - propagate the interface cleanup from last week in datadesc, ie remove a
1197 superfluous level of indirection. User pass adress of variable
1198 containing data (both when sending and receiving), and not of a variable
1199 being a pointer to the data. Let's say that I like it better ;)
1200 The price for that is constructs like "int msg=*(int*)payload" in
1201 handlers, but it's a fine price, IMHO.
1203 - Let it work in RL (yuhu)
1205 2004-06-21 Martin Quinson
1207 - porting SG plugin and SG select to new standards (works almost).
1208 - plug memleaks and fix bugs around.
1211 - cleanup the prototype of data recv and force users to specify when they
1212 want to handle references to objects. Test case working even for cycles.
1213 - plug memleaks. Valgrind is perfectly ok with this.
1215 2004-06-12 Martin Quinson
1217 - cleanup the separation between plugin and main code in plugin creation
1219 2004-06-11 Martin Quinson
1221 - Reput hook for raw sockets, needed for BW experiments
1222 - kill a few lines of dead code
1223 [Data description] Interface cleanup
1224 - gras_datadesc_by_name returns the searched type or NULL.
1225 That way, no variable is needed to use a type desc once, which makes
1227 - gras_datadesc_declare_[struct|union]_append_name is removed. The last
1228 two parameters were strings (field name, type name), leading to
1230 [Dicos] Interface cleanup
1231 - gras_dico_retrieve -> gras_dico_get ; gras_dico_insert -> gras_dico_set
1232 This is consistant with the dynar API.
1234 2004-04-21 Martin Quinson
1236 - Porting to new standards.
1238 - interface cleanup.
1239 There is no bag anymore, no need to take extra provision to mask the
1240 pointers behind "ID".
1241 Better splitup of functions between files create/exchange/convert.
1242 This is still a bit artificial since convert and receive are so
1243 interleaved, but anyway.
1245 - add a queued message list to procdata (the ones not matching criteria
1247 - factorize some more code between SG and RL wrt procdata
1249 - use gras_exit in example to track memleaks
1250 - get rid of gs_example now that GS is properly integrated into gras
1251 - update run_test to integrate the lastest tests (datadesc)
1253 - rename WARNINGn macros to WARNn since it prooved error-prone
1255 2004-04-19 Martin Quinson
1257 - register init/exit functions within gras module mechanism
1258 - send/receive function.
1259 Convertion is not implemented, but short-cutted if not needed.
1260 struct/array elements are sent one by one (instead of block-wise), but
1261 nobody really cares (yet). Get a prototype before optimizing.
1262 - tests (using a file socket) for DD send/receive on:
1263 - base types: int, float
1264 - array: fixed size, string (ie ref to dynamic string)
1265 - structure: homogeneous, heterogeneous
1266 - chained list, graph with cycle
1267 Believe it or not, valgrind is not too unhappy with the results. The
1268 cycle happily segfaults, but the others are ok. And I'm sick of pointers
1272 - Bugfix when using a filename explicitely (instead of '-')
1274 2004-04-09 Martin Quinson
1276 - factorize more code between RL and SG in socket creation
1277 - Complete the implementation and tests of:
1279 o file (only in RL, and mainly for debugging)
1281 I lost 3 days to design a portable address resolver, and then decided
1282 that the prototype mainly have to run on my box.
1283 Addressing portability too early may be like optimizing too early :-/
1285 - use gras_init in the Tests instead of the crappy parse_log_opt
1286 (the latter function is removed)
1287 [Conditional execution]
1288 - New functions: gras_if_RL/gras_if_SG (basic support for this)
1289 [Code reorganisation]
1290 - Get rid of libgrasutils.a since it makes more trouble than it solves.
1291 Build examples against the RL library, since there is no way to disable
1292 its creation for now.
1294 For information, the beginning of coding on GRAS was back in june
1295 2003. I guess that every line has been rewritten at least twice since