1 SimGrid (3.4-svn) unstable; urgency=high
4 * Tested successfully on AIX
5 * Implement a --cfg-help to show existing configuration variables
8 * fix a bug on struct sizeof computation, which prevented the
9 exchange of arrays of structs in some conditions
10 - added a regression test about this in datadesc_usage
11 * Allow the exchange of 0-long dynamic vectors.
12 - for that, use -1 as indicator of dynamic size instead of 0
13 - This implied to change any size from unsigned long to long,
14 reducing a bit communication abilities, but I guess that with
15 64bits being quite common, this is more than enough.
16 - This also induce a protocol change, thus bumping network protocol
17 version from 0 to 1 (if we have external users, we have to get
18 clean on that point too ;)
19 - added two regression tests about this in datadesc_usage
20 * Be more verbose when propagating local exceptions
22 * Display the status of simulated processes when receiving SIGINT in
26 * Allow to control the simulation from a trace file.
27 New functions MSG_action_register() and MSG_action_trace_run()
28 The first one allows to associate a function execution to each
29 kind of action while the second one parses a trace file and
30 triggers the corresponding actions within the system.
31 For now, only a toy example is provided in examples/msg/actions
32 * Add an exemple of process migration in examples/msg/migration
33 * Fix a bug in task exchange which broke MSG_task_get_sender()
34 Add a teshsuite regression test for that.
35 [Bug: if MSG_task_get_sender() is called after sender exit,
37 * Fix a bug which prevented suspend/resume to work properly
38 * Display the status of simulated processes when receiving SIGINT
39 This fixes a regression of v3.3. due to the introduction of SIMIX
40 * Bug fixing in failure management:
41 - trace could not start by a failure at time 0
42 - failure during communications were not working
45 * Add SIMIX_process_set_name() to change the name of the current
46 process in the log messages.
47 * Store smx_hosts in a dict since we only retrieve them by name
48 * Move the configuration infrastructure to surf
51 * Move the configuration infrastructure to surf
54 * Massive internal cleanups:
55 - Store internal structures on processes instead of hosts (allows
56 to have more than one process per host, in addition of being more
58 - Cleanup the initialization/finalization process
59 - Kill a whole bunch of unneeded synchronization:
60 processes run in exclusive manner within the simulator
61 - Move queues from global tables to process data fields
63 - now accept -platform and -hostfile arguments
64 - Pass the right rank value to processes according to the hostfile
65 * Compile the examples by default, and use them as regression tests
66 * Implement MPI_Wtime()
69 * TCP_gamma can now be specified as command line option using
70 --cfg=TCP_gamma:10000000.0
71 * Change the --surf-path cmd line option into --cfg=path:
74 * Also include strbuff from xbt.h public header
75 * xbt_ex_display(): do not free the exception after displaying
76 This allows to do more with the given exception afterward.
77 Users should call xbt_ex_free() themselves.
80 * Do not require doxygen in maintainer mode
82 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
84 SimGrid (3.3) stable; urgency=high
88 * JAVA BINDINGS for MSG (you dreamt of them? We made them)
91 * Introduce the SIMIX module: factorize code between MSG and GRAS.
94 Until now, GRAS were using MSG as an interface to SURF. It was
95 quite difficult because both interface have several differences
96 (MSG channels vs GRAS sockets were the most notable point).
98 This also opens the gate to SMPI (which should occur soon) and speed
99 up simulations by to 40% (even if it were not the main goal).
101 **************************************
102 *DO NOT MIX 3.2 RESULTS WITH 3.3 ONES* Simix may changes simulations!
103 **************************************
104 The point is that events occuring at the exact same timestamp are
105 not scheduled in the same order with the old and new version. This
106 may be enough to completely change the execution of simulations in
107 some cases. Sorry for the inconvenience.
109 * Cleanup and upgrade the XML format to push further scalability
110 issues (check http://hal.inria.fr/inria-00256883/ for more info)
112 * Improve the testing infrastructure with tesh. Now a very large part of
113 the code is tested not only by being run but also by checking that the
114 output match an expected output [Mt].
116 * Move on to FleXML v1.7 for the embeeded XML parsers. This version
117 is really less memory-demanding, which should allow you to use
118 larger files in SimGrid [AL].
120 * Inform valgrind about our contextes, so that it becomes usable
121 with the default (and more effecient) version of SimGrid
122 [contributed by Sékou Diakite, many thanks]
125 * Introduce a listener thread in charge of receiving incomming
126 messages from the network. It allows to overlap communication and
127 computation but most notably, it removes some stupid deadlocks due
128 to the fact that so far, a process could not send and receive at
129 the same time. This made most non trivial communication schema
131 * Convert the PIDs from long int to int to match the MSG ones (and
133 * New function: gras_agent_spawn() to launch a new process on
134 current host. Only working in simulation for now. [Mt]
135 * New function: gras_os_hostport() returning a constant form (ie,
136 not needing to be freed) of "gras_os_hostname():gras_os_myport()"
139 * Make the backtrace of exceptions more human readable [Mt]
140 * New module: xbt/str [Mt]
141 a ton of string utility functions (split, join, printf to a newly
142 allocated buffer, trim, etc)
143 * New module: xbt/hash [Mt]
144 SHA1 hashing algorithm (more to come if needed)
145 * New module: xbt/synchro [Mt]
146 synchronization tools (mutex and conditions) working the same way
147 in simulation and in real life (mainly useful for GRAS, but not
149 * New module: xbt/queue [Mt]
150 classical producer/consumer synchronization scheme
151 * xbt_dynar_new_sync() creates a synchronized dynar. All access
152 (using the classical functions will get serialized) [Mt]
153 * Make dictionary internal table dynamic. No need to specify its size
154 anymore; functions xbt_dict_new_ext() and xbt_dict_hashsize_set()
156 * Make sure the log channels are organized as a tree under windows
157 (because of ANSI C compatibility issue, any channel were child of
161 * Cleaned many thing in surf and fixed a few bugs [AL].
162 * Add a nice command line configuration mechanism to compose models [AL].
163 * Add a new model for parallel tasks (ptask_L07) that is less buggy than
164 the previous one (KCCFLN05). It relies on something that looks like
165 a max-min sharing mechanism but cannot be written as such. A new solver
166 was thus designed [AL].
167 * Add a new solver to lmm. Based on Lagrange optimization and
168 gradient-based descent, it enables to efficiently maximise systems s.a
170 sum f_i(x_i) s.t Ax<= b with A_{i,j}>=0 and f_i a concave function.
172 This solver enables to propose two new network models for TCP Reno and
173 TCP Vegas based on Low's work. These models still need to be fully
174 tested though [Pedro Velho].
177 * Bug fix in SD_simulate. Now the time bound given as argument is
179 * Use the new parallel task model (ptask_L07) as default.
180 * Use the SURF command line configuration mechanism.
181 * 0-size tasks (for synchronization) should now work.
183 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Sun Apr 12 05:20:36 CEST 2009
185 SimGrid (3.2) stable; urgency=high
189 We still experience issues on this platform, but we believe that at
192 GRAS API BREAKAGE (for simplification purpose, sorry):
193 * the gras_msgtype_by_name is not used anymore. Instead of
194 gras_msg_send(toserver, gras_msgtype_by_name("request"), &request);
195 you can write (and must)
196 gras_msg_send(toserver, "request", &request);
197 - If you still want to pass a gras_msgtype_t to the function (to cache
198 the type and avoid the lookup time), use the gras_msg_send_() variant.
199 - Impacted functions:
200 gras_cb_register, gras_cb_unregister, gras_msg_send, gras_msg_wait,
201 gras_msg_rpccall, gras_msg_rpc_async_call, gras_msg_wait_ext
202 * The callbacks are now expected to return 0 when everything went well
203 (just like the main() function)
205 GRAS new features and improvements:
206 * New module mecanism where user code can use per process globals [Mt]
207 This is similar to gras_userdata_*() functions, but for libraries. It
208 factorize some code developped over and over in the examples and AMOK.
209 It has still to be documented and used (only amok/peermanagement is
211 * Fix a vicious bug in the TCP buffering mecanism which leaded to message
212 loss when they were small enough to fit into the buffer and sent quickly
213 enough so that they can all get received in one shoot.
214 * gras_datadesc_by_name and gras_msgtype_by_name: now raise an exception
215 if not found. Use the *_or_null() variant for the old semantic.
216 * In gras_msg_handle, do not discard messages without callback.
217 They are probably messages to be explicitly awaited later (ie, proofs of
218 mis-synchronization in userland since they are sent before being awaited)
220 * gras_socket_meas_send/recv: semantic changed!
221 The numerical arguments used to be (1) the total amount of data to send
222 and (2) msg_size. This was changed to (1) msg_size and (2) amount of
223 messages. This was need for the fool willing to send more than MAXINT
224 bytes on quite fat pipes.
227 * Do really rename the hostmanagement module to peermanagement. [Mt]
228 Ie, rename functions from amok_hm_* to amok_pm_*. This breaks the API,
229 but this is rather new and this was documented in the module
230 documentation (poor excuses, I admit)
231 * Bandwidth measurement semantic changed! This follows the changes to
232 gras_socket_meas_send/recv explained above.
235 * A sequential mode has been added to the workstations. When a workstation
236 is in sequential mode, it can execute only one task, and the other tasks
237 are waiting in a FIFO. [Christophe Thiery]
240 * The KCCFLN05 workstation model now handles parallel tasks. It is the
241 model for SIMDAG. [Christophe Thiery]
242 * Bug fix in the maxmin solver: Some values were close to 0 instead of
243 equal to 0, which caused some bad behaviors in
244 saturated_constraint_set_update. I now use a threshold mechanism like in
248 * When running manually src/testall, you select specific units [Mt]
249 testall is the result of our cunit mecanism, and should replace all
250 the scripty thingy around since bash don't run easily on billware.
252 * A mallocator system has been added. [Christophe Thiery]
253 Mallocators allow you to recycle your unused objects instead of freeing them
254 and allocating new ones.
256 Documentation update:
257 * FAQ reworking + New FAQs:
258 - "Valgrind spits tons of errors!" [Mt]
259 - "How to repport bugs" [Mt]
260 - "Cross-compiling a Windows DLL of SimGrid from Linux" [Mt]
261 - "What is the difference between MSG, SimDag, and GRAS?" [Mt]
262 - Communication time measurement within MSG [AL]
263 - I experience weird communication times when I change the latency [AL]
266 - an introduction to the framework and to the used communication model
267 - an initiatic tour introducing the most proheminent features:
269 . Lesson 0: Installing GRAS
270 . Lesson 1: Setting up your own project
271 o Part 2: Message passing
272 . Lesson 2: Exchanging simple messages
273 . Lesson 3: Passing arguments to the processes (in SG)
274 . Lesson 4: Attaching callbacks to messages
275 . Lesson 5: Using globals in processes
276 . Lesson 6: Logging informations properly
277 . Lesson 7: Using internal timers
278 . Lesson 8: Handling errors through exceptions
279 . Lesson 9: Exchanging simple data
280 . Lesson 10: Remote Procedure Calling (RPC)
281 . Lesson 11: Explicitely waiting for messages
282 . Recapping of message passing features in GRAS
283 - A HOWTO section containing:
284 o HOWTO design a GRAS application
285 More are due, of course. They will come latter. In the meanwhile, you can
286 check the examples which are still here.
288 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri Mar 16 21:11:46 CET 2007
290 SimGrid (3.1) stable; urgency=high
294 There was a stack corruption somewhere, visible only when optimizing
295 with these versions. [Vince]
298 * This is a NEW module! SimDAG (SD for short) is a revival of the old SG
299 module that enabled to play with Directed Acyclic Graphs. It is built
300 directly on top of SURF and provides an API rather close to the old
301 SG. Some old codes using SG are currently under rewrite to check that
302 all needful functions are provided. [Christophe Thiery]
305 * Complete rewrite of the KCCFLN05 workstation model. It is now an
306 extension of the classical CLM03 model that gracefully handles
307 failures. This is now the default model for MSG and GRAS. It doesn't
308 handle parallel tasks yet though. [AL]
309 * Bug fix: Weights were not correctly set in the network part.
310 WARNING: This may have resulted in incorrect results with simulations
311 where there are more than one flow on a given link. [AL]
314 * After a (long ?) discussion on simgrid-devel, we have decided that the
315 convention we had on units was stupid. That is why it has been decided
316 to move from (MBits, MFlops, seconds) to (Bits, Flops, seconds).
317 WARNING : This means that all previous platform files will not work as
318 such with this version! A warning is issued to ask users to update
320 A conversion script can be found in the contrib module of the CVS, under
321 the name contrib/platform_generation/surfxml_update.pl [MQ]
324 * Bug fix: Processes were started in reverse order, wrt deployment file.
325 WARNING: if your code relies on this bug, please fix it. [AL]
326 * Bug fix: Add a test in MSG_task_execute to stop whenever a task is
327 being executed on two different locations. [AL]
328 * Bug fix: Failures are now better supported thanks to Derrick's tests
329 (there was many failure situations I hadn't thought of and that weren't
330 correctly handled). [AL]
331 * New function: MSG_host_is_avail indicates you whether a given m_host_t
335 * New! a real RPC mecanism, as it ought to be since too long. [MQ]
336 Exception occurring on server-side are propagated back to client (!).
338 API CHANGE: the callback changed their prototype. Change:
339 int my_handler(gras_socket_t expeditor, void *payload_data) {
341 int my_handler(gras_msg_cb_ctx_t ctx , void *payload_data) {
342 gras_socket_t expeditor=gras_msg_cb_ctx_from(ctx);
344 * New! function: gras_msg_handleall to deal with all messages arriving
345 within a given period.
346 * New! function: gras_socket_server_range to get a server socket in a
347 range of port numbers (ease to avoid port number conflicts) [MQ]
348 * New! gras processes display their backtrace when they get a SIGUSR1
349 or when Ctrl-C is pressed. Use Ctrl-C Ctrl-C to exit.
350 Sweet to debug RL processes [MQ]
354 - Do not force experiment sizes to be expressed in kb, or it becomes
355 impossible to measure the latency this way (needs one byte-long tests)
356 WARNING: this changes the amok_bw_* function semantic. [MQ]
357 - Implements the link saturation stuff. [MQ]
358 * Peer management module:
359 New! module factorizing code that we wrote over and over [MQ].
362 * New module: cunit (my jUnit implementation in ansi C) [MQ]
363 - Test units are placed directly into the library code, they get extracted
364 automatically and placed into the src/testall binary.
365 - Convert most of the XBT tests to this system.
366 * New functions: xbt_dynar_getfirst_as() and xbt_dynar_getlast_as() [MQ]
367 * XML parsing: rewrote parts of flexml to enable multiple xml parsers to
368 live in the same C code. This required to change a little bit the API
369 of surfxml parsing but shouldn't be an issue for end-users. [AL]
370 * New module: sparse graph structure with basic algorithms (this is work
371 in progress and the API is not considered to be frozen yet). [AL]
372 * Display more information on backtraces: source line & function names are
373 now displayed just like valgrind does (rely on addr2line tool) [MQ]
374 * New function: xbt_backtrace_display(). Sweet while debuging [MQ]
375 * Reworked a little bit some #include statements to load only required
376 headers. Some user code that relied on SimGrid to include stdlib or
377 stdio may need to include it by themselves. [AL]
378 * Fixed xbt/log.h. A missing SG_BEGIN_DECL prevented compilation with
380 * Renamed xbt_host_t into xbt_peer_t since it betterly describes what I
381 meant. This breaks the API of AMOK and of xbt/config. Sorry about this,
382 but I guess that almost nobody used those parts. [MQ]
384 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 14 Jul 2006 01:32:27 +0200
386 SimGrid (3.0.1) stable; urgency=low
389 * Unfortunately, I had missed 5 misnamed functions:
390 xbt_fifo_item_t xbt_fifo_newitem(void);
391 void xbt_fifo_freeitem(xbt_fifo_item_t);
392 xbt_fifo_item_t xbt_fifo_getFirstItem(xbt_fifo_t l);
393 xbt_fifo_item_t xbt_fifo_getNextItem(xbt_fifo_item_t i);
394 xbt_fifo_item_t xbt_fifo_getPrevItem(xbt_fifo_item_t i);
395 They're now deprecated. Please use their new versions:
396 xbt_fifo_item_t xbt_fifo_new_item(void);
397 void xbt_fifo_free_item(xbt_fifo_item_t);
398 xbt_fifo_item_t xbt_fifo_get_first_item(xbt_fifo_t l);
399 xbt_fifo_item_t xbt_fifo_get_next_item(xbt_fifo_item_t i);
400 xbt_fifo_item_t xbt_fifo_get_prev_item(xbt_fifo_item_t i);
402 * Bugfix: really disconnect fifo items which are remove_item()ed [AL]
403 * Documentation: xbt_log module unmercifully reworked [MQ]
404 * Bugfix: there was a problem with the ending of contexts with
405 the pthread backend. It caused some weird deadlock or behavior
406 depending on the pthread implementation. [AL]
407 * Bugfix: get the exceptions raised in the simulator repport where
408 and why they come from when they are not catched in time [AL, MQ]
411 * Bugfix: Do repport the error when two non-connected hosts try to
412 exchange data (Thanks to Flavien for stumbling into this one) [AL]
415 * Add additionnal checkings on communications. Assert that two
416 communicating hosts are connected by a set of links... [AL]
419 * Add additionnal checkings on channel values in communication [AL]
420 * New: MSG_task_get_source to see on which host a task was generated [HC]
421 * New: int MSG_task_probe_from_host(int channel, m_host_t host): returns
422 the number of tasks waiting to be received on channel and sent
424 * New: MSG_error_t MSG_task_get_from_host(m_task_t * task, int channel, m_host_t host);
425 waits for the first task coming from a given host.. [AL]
427 GRAS new functionnalities: [MQ]
428 * Enhance the parsing macro to allow the size of multidimentional objects
429 to be given thru annotations.
430 * New example (and documentation): Matrix Multiplication a la RPC
431 (as when I was young!) and fix a bunch of bugs found on the way.
433 GRAS performance improvements: [MQ]
435 * Reduce the amount of cbps creation/destruction by making it static to
436 datadesc_send/recv() and using a (newly created) cbps_reset (based on
439 * Change libdata to a set so that we can search for stuff by ID (and thus
440 reduce the insane amount of dict lookups)
443 * Actually implement gras_datadesc_copy() so that we don't have to mimick
444 RL communication on top of SG since it's so uneffective.
445 It may also be used for inter-thread communication in RL, one day.
446 * Use gras_datadesc_copy() to exchange messages on top of SG
448 - improve message exchange performance on top of SG
449 - deprecate transport_plugin_sg.c:gras_trp_sg_chunk_send() & recv()
450 * Don't exchange on the network the size of the used part of buffer,
451 instead, specify the possible buffer size to read().
453 - reduces the amount of read/write calls (one pair per exchange)
454 - reduces the amount of exchanged data (the size)
455 - allows to retrieve all arrived data on receiver side, if we don't need
456 it right now (subsequent read will peek the buffer)
457 - allows the receiver to proceed with the begining of the stream before
458 everything is arrived
459 - make it possible to build an iov transport (using readv/writev)
461 - take care of the data with non-stable storage (like stacked data),
463 * If possible, TCP send uses vector I/O (when writev() is here)
464 - Don't use it for receive since we send data sizes and data on the
465 same stream, so we wouldn't be able to chain large amount of chunks
466 before having to flush the stuff to read the size.
467 * Rework the transport plugin mecanism to simplify it and reduce the
468 amount of pointer dereferencement when searching for the right function
471 * I guess that now, we do almost as few system calls as possible while
472 doing as few data copy as possible.
474 To improve it further, we could try to send all the sizes first and then
475 all the data (to use iov on receiving size), but it's only a partial
476 solution: when you have 2 dimensional data, the sizes of the second
477 dimension is data of the first dimension, so you need 3 streams.
479 I'm not sure the potential performance gains justify the coding burden.
481 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 21 Oct 2005 14:42:20 +0200
483 SimGrid (3.00) stable; urgency=high
486 * New! Give the possibility to hijack the surf parser and thus bypass
487 MSG_create_environment and MSG_launch_application. Have a look at
488 examples/msg/msg_test_surfxml_bypassed.c to see how it can be done.
490 -- Arnaud Legrand <simgrid-devel@lists.gforge.inria.fr> Sat, 20 Aug 2005 23:25:25 -0700
492 SimGrid (2.96) unstable; urgency=low
497 * New! Exception handling with setjmp or such (code from OSSP ex) [MQ]
498 This deprecates the xbt_error_t mecanisms.
499 It modifies (simplifies) all XBT and GRAS API.
500 MSG API keeps unchanged (exceptions raised by XBT are catched from
501 within MSG and masked with existing error handling facilities)
504 * New! Add a FATPIPE model. [AL]
505 * New! Add a parallel task model. [AL]
506 * New! Add automatically a loopback interface (in the default
507 network model) if none was precised.
510 * Bugfix: MSG_process_resume now works with the current running process.
512 * New! Add MSG_parallel_task_create and MSG_parallel_task_execute. [AL]
513 * Modification of MSG_task_get_compute_duration. Once a task has been
514 processed, the value returned by this function is now equal to 0. [AL]
515 * New! Add double MSG_task_get_remaining_computation(m_task_t task) and
516 MSG_error_t MSG_task_cancel(m_task_t task). Add a state
517 (MSG_TASK_CANCELLED) to MSG_error_t corresponding to the cancelation
518 of a m_task. For now, MSG_task_cancel only works with computation
520 * New! Add double MSG_get_host_speed(m_host_t h) that returns the speed
521 of the processor (in Mflop/s) regardless of the current load on the
523 * API Change: use proper naming convention for MSG_getClock and
524 MSG_process_isSuspended: MSG_get_clock and MSG_process_is_suspended.
526 * New! Add void MSG_task_set_priority(m_task_t task, double priority).
527 This function changes the priority of a computation task. This priority
528 doesn't affect the transfer rate. A priority of 2 will make a task
529 receive two times more cpu power than the other ones. This function
530 has been added to suit the needs of Nguyen The Loc and hasn't been that
531 much tested yet. So if it fails, please report it and send me your code.
533 * API Change: removed all functions and types that were marked "deprecated"
534 since many months. Renamed MSG_global_init_args to MSG_global_init.
536 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Mon, 8 Aug 2005 17:58:47 -0700
538 SimGrid (2.95) unstable; urgency=low
541 * Steal some nice code to GNU pth to fix context detection and usage [AL]
542 * Cleanup in the xbt_config API; add configuration callbacks. [MQ]
543 * Cleanup in the initialization API: the unused "defaultlog" is dead. [MQ]
546 * Bugfix: Allow absolute paths for platform description files [MQ]
547 * Bugfix: do free the variables after use. Leads to drastic performance
549 * Implement max_duration (ie, timeouts) on resources [AL]
552 * Implement MSG_config to configure MSG at runtime. xbt_cfg test on a real
554 * Implement MSG_channel_select_from() to help GRAS now that SURF provide
555 the needed support (timeouts) [AL]
558 * Implement measurement sockets. You can now get the bandwidth between two
559 hosts thanks to AMOK (see below). [MQ]
560 * gras_datadesc_dynar() builds a dynar type descriptor, allowing to send
561 dynar over the network (yeah) [MQ]
562 * Real (even if simplistic) implementation of gras_os_myname() on RL [MQ]
563 * simple/static token-ring example. [Alexandre Colucci and MQ]
564 * Use MSG_channel_select_from() and remove the *slow* hack we had to put
568 * Differentiate the types "char[22]" and "unsigned char[22]" in automatic
569 type parsing. "short" and "long" modifiers were also ignored; other
570 modifier (such as reference level) are still ignored. [MQ]
571 * Embeed the buffer size within the buffer itself on SG. [MQ]
572 That way, send() are atomic and cannot get intermixed anymore (at least
573 the ones which are less than 100k; bigger messages still have the issue)
574 * Array size pushed by the field, not by the field type (or each
575 and every long int will push stuff to the cbps) [MQ]
576 * use select() to sleep since it allows to portably sleep less than one
579 GRAS (minor cleanups)
580 * <project>.Makefile.local (generated from gras_stub_generator) |MQ]:
583 * Type Callbacks now receive the gras_datadesc_type_t they work on as argument.
584 * type category 'ignored' killed as it was never used and were difficult
586 * whether a type can cycle or not is now a flag, leaving room for more
587 flags (as "ignored", if we feel the need one day ;)
588 * Rename raw sockets to measurement sockets since "raw" has another
589 meaning in networking community.
592 * Advanced Metacomputing Overlay Kit introduction. It is based over GRAS
593 and offers features not belonging to GRAS but that most applications
594 need. One day, it may be a set of plugins loadable at runtime.
595 * New module: bandwidth
596 bandwidth measurement between arbitrary nodes running this module. [MQ]
598 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Thu, 30 Jun 2005 16:29:20 -0700
600 SimGrid (2.94) unstable; urgency=low
602 The first beta release of SimGrid 3 !
606 * Update the main page and the FAQ. Adding references to gforge.
609 * Add a gras_os_getpid function.
612 * Add MSG_task_get_compute_duration() and MSG_task_get_data_size()
613 * Extend the logs so that they also print PID, hostname, date, ... if
615 * Convert the MSG example to the use of xbt_logs instead of PRINT_MESSAGE,
616 and kill the old version which were in testsuite/
617 * Rewrite tools/MSG_visualization/colorize.pl for using with logs instead
621 * Add xbt_os_time(). As the rest of xbt/portability, this is not public
622 for users. Instead, each programming environment (GRAS, MSG,...) use it
623 when needed to provide such a feature to users.
624 Don't shortcut the mecanism or you will also shortcut the virtualization
625 you need on the simulator.
629 * Cleanups in configury with regard to compile optimization/warning flags.
630 Also add -fno-loop-optimize to any powerpc since it's the optimization
631 killing gcc (< 3.4.0).
632 * Doxygen cleanups: move MSG examples, kill the second Doxygen phase
633 needed by MSG examples complications
634 * Borrow configury beautifications from PHP
637 * Bugfix: XBT_LOG_NEW_DEFAULT_CATEGORY now compiles without compiler
638 warning (thanks loris for stumbling into this one).
639 * Bugfix: stop loading private headers (gras_config.h) from the public
643 * Change SIMGRID_INSTALL_PATH to GRAS_ROOT in Makefiles generated for user.
644 * Rename gras_get_my_fqdn to gras_os_myname and implement it in the simulator
645 RL would imply a DNS resolver, which is *hard* to do in a portable way
646 (and therefore delayed).
647 * Implement a real timer mecanism and use it in timing macros. This allows
648 to avoid rounding errors and get a 0.000005 sec precision in timing
649 macros. While I was at it, various cleanups:
650 - allow to declare more than one timed section per file (fix a stupid bug)
651 - move some private declaration to the right place
652 - merge conditional execution and timing macros into emulation module
653 - document the module
654 - make sure the module cleanups its mess on gras_exit
655 * Documentation improvements:
656 - (new) how to compile applications using GRAS
657 - (new) emulation support (timing macros)
659 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 13 May 2005 10:49:31 +0200
661 SimGrid (2.93) unstable; urgency=low
663 Alpha 4 on the path to SimGrid 3 (aka the "neuf-trois" version)
666 - Use Paje properly where used. Still to be sanitized properly.
667 - Portability fix: Add an implementation of the contexts using pthread
671 - Add xbt_procname(): returns the name of the current process.
672 Use it to show the current process's name in all logging.
674 - fix detection of older flex version and the reaction, since we do
675 depend on modern ones (we use lex_destroy)
676 - Better separation of SG and RL in the libs: remove all simulation code
677 from libgras. As a result, this lib is now only 200k when stripped.
678 Some of the xbt modules may also be duplicated (two sets and such) and
679 should be cleaned/killed before SG3.
680 - Insist on using xlC on AIX because of weird problems involving gcc there.
681 - Cleanup the make remote stuff. This is now done by scripts
682 tools/graspe-{master,slave} (GRAS Platform Expender). This is still
683 mainly for our private use, but we're working on changing them to user
686 - Bugfix: flush the socket on close only if there is some *output*.
687 - Bugfix: flush idempotent when there's nothing to send (don't send size=0)
689 - Add MSG_task_get_name. The task names are mainly for debugging purpose,
692 -- SimGrid team <simgrid2-users@listes.ens-lyon.fr> Fri, 4 Mar 2005 14:32:37 -0800
694 SimGrid (2.92) unstable; urgency=low
696 Alpha 3 on the path to SimGrid 3
700 - New! First try of benchmarking macros.
701 - New! First try so that gras_stub_generator generate deployment and
702 remote compilation helpers.
704 - Bugfix: Initialization fix in msg_test.
708 - Bugfix: applied patch to lexer so that it doesn't need a huge heap.
710 - Bugfix: let dicts work with NULL content (_foreach didn't) and cleanups
712 - API Change: gras_os_sleep to take the amount of seconds as a double.
713 Accepting an int was error prone since it was the only location where
714 seconds were coded as such. It leaded to damn rounding errors.
715 - Bugfix: Hard to belive that timers ever worked before this.
717 -- SimGrid team <simgrid2-users@listes.ens-lyon.fr> Wed, 23 Feb 2005 22:09:21 +0100
719 SimGrid (2.91) unstable; urgency=low
721 Alpha 2 on the path to SimGrid 3
725 - Bug fix in the lmm_solver.
727 - New! Interface to Paje (see http://www-id.imag.fr/Logiciels/paje/)
728 through the function MSG_paje_output.
729 - New! Introducing two new functions MSG_process_kill() and MSG_process_killall().
730 - It is possible to bound the rate of a communication in MSG with
731 MSG_task_put_bounded() (was already in the previous version but I had forgotten
732 to write it in the changelog).
733 - Bug fix to let GRAS run on top of MSG until we move it directly on top
738 - Various cleanups to the autotools stuff
739 - Begin to move Gras examples to examples/gras/
740 - Let make distcheck work again (yeah!)
742 - documentation overhauled using doxygen.
743 gtk-doc-tools is dead in SimGrid now.
744 - Automatically extract all existing logging categories, and add the list
745 to the documentation (long standing one, to say the less)
747 - Cleanup the known architecture table. Reorder the entries to group what
748 should be, and use a more consistent naming scheme.
749 (some of the test dataset are still to be regenerated)
750 - New! Allow library to register globals on each process just as userdata
752 This is implemented using a xbt_dict and not a xbt_set, so we loose the
753 lookup time (for now).
754 Use it in msg and trp.
755 This cleans a lot the internals and helps enforcing privacy of the
756 headers between the gras components.
757 - New! Add a timer mechanism, not unlike cron(8) and at(1).
758 - Bugfix: gras_os_time was delirious in RL.
759 - Bugfix: gras_trp_select/RL don't run into the wall when asked to select
761 - Reenable GRAS now that it works.
763 -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 14 Feb 2005 14:02:13 -0800
765 SimGrid (2.90) unstable; urgency=low
767 Alpha 1 on the path to SimGrid 3
769 * It is a long time since the last release of SimGrid. I'm sorry about
770 that but as I had told you, I was rewriting a lot of things. I apologize
771 to those who had been reporting bugs to me and that I had not answered.
772 If your bug is still in the new version, please tell me. Here is a
773 summary of the main changes.
775 * REVOLUTION 1: The SimGrid project has merged with the GRAS project
776 lead by Martin Quinson. As a consequence SimGrid gains a lot in
777 portability, speed, and a lot more but you'll figure it out later.
778 SimGrid now comprises 3 different projects : MSG, GRAS and SMPI.
779 I wanted to release the new MSG as soon as possible and I have
780 broken GRAS, which is the reason why, for now, only MSG is fully
781 functional. A laconic description of these projects is available
782 in the documentation.
784 * REVOLUTION 2: I have removed SG and I am now using a new simulation
785 kernel optimized for our needs (called SURF but only the developers
786 should use it). Hence, MSG is now roughly 30 times faster and I think
787 that by rewriting a little bit MSG, I could event speed it up a little
788 bit more. Beside the gain in speed, it is also much easier to encode a
789 new platform model with SURF than it was with SG. More to come...
791 * REVOLUTION 3: I have tried to change a little as possible the API of
792 MSG but a few things really had to disappear. The main differences
793 with the previous version are :
794 1) no more m_links_t and the corresponding functions. Platforms are
795 directly read from a XML description and cannot be hard-coded
796 anymore. The same format is used for application deployment
797 description. The new format is described in the documentation.
798 Have a look in tools/platform_generation. There is a tiny script
799 that converts from the old platform format to the new one. Concerning
800 the application deployment format, parsing the old one is tricky.
801 I think most of you should however be able to convert your files. If
802 it is really an issue, I can write a C code that does the conversion.
804 2) the toolbox tbx does not exist anymore. We now have a library
805 with much more data-structures but without the hash-tables (we have
806 dictionaries that are much faster).
808 -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 31 Jan 2005 10:45:53 -0800
810 *****************************************************************************
811 * Follows the old GRAS changelog. It does not follow the same syntax, but I *
812 * don't feel like converting the oldies. (Mt) *
813 *****************************************************************************
816 Version 2.90: "the long awaited one"
817 - Finished rewriting and debugging MSG. Rewrote the documentation.
818 - disable GRAS for now since it needs to be ported to the newest SG
821 - Finish the port to windows (using mingw32 for cross-compile)
824 - Main loop and datastructures of SURF. A cpu resource object is
825 functional. Surf can thus be used to create cpu's with variable
826 performance on which you can execute some actions.
828 2004-11-15 Martin Quinson
829 - Port to ARM. Simply added the alignment and size descriptions. Should
830 work, but the ARM machines are so slow that I didn't had the opportunity
831 to 'make check' over there yet.
833 2004-11-15 Arnaud Legrand
834 - Trace manager now written. It uses a heap structure and is therefore
835 expected to be efficient. It may however be speeded up (particularly
836 when many events occur at the same date) by using red and black
837 trees. One day maybe...
838 - Max-min linear system solver written. It uses a sparse matrix
839 structure taking advantage of its expected use. Most operations are
840 O(1) and free/calloc are called as few as possible. The computation of
841 the minimum could however be improved by using a red and black tree
844 2004-11-03 Arnaud Legrand
845 - Rename every gras_* function that was in xbt/ to its xbt_
847 - Add a heap and a doubly-linked list to xbt
848 - Added a dichotomy to the dictionaries. make check works as well before
849 so I assume that the patch is correct. I do not know however if things
850 run effectively faster than before now. :)
852 Inclusion of the SimGrid tree in the GRAS one. The archive is renamed to
853 SimGrid, and the version number is bumped to 2.x
855 2004-10-29 Martin Quinson
856 - Introduction of the remote errors.
857 They are the result of a RMI/RPC on the remote machine.
858 ErrCodes being scalar values, you can't get the host on which those
859 errors did happen. Extending the error mechanism as in Gnome is possible.
860 No idea yet whether it is a good idea.
862 2004-10-28 Martin Quinson
863 - Interface revolution: the Starred Structure Eradication.
864 I used to do typedef struct {} toto_t; and then handle *toto_t.
865 Arnaud (and Oli) didn't like it, and I surrendered. Now, you have:
866 - ???_t is a valid type (builded with typedef)
867 - s_toto_t is a structure (access to fields with .)
868 - s_toto is a structure needing 'struct' keyword to be used
869 - e_toto_t is an enum
870 - toto_t is an 'object' (struct*)
872 typedef struct s_toto {} s_toto_t, *toto_t;
873 typedef enum {} e_toto_t;
874 Moreover, only toto_t (and e_toto_t) are public. The rest (mainly
875 s_toto_t) is private.
877 - While I was at it, all gras_<obj>_free() functions want a gras_<obj>_t*
878 so that it can set the variable to NULL. It was so for dicts and sets,
879 it changed for dynars.
881 - Fix a bunch of memleaks in dict_remove
882 - Fix a bug in sg/server_socket opening: it failed all the time.
884 2004-10-07 Martin Quinson
885 - Speed up dynar lookup operation a bit.
887 gras_dynar_get is dead.
889 Now, you can choose between gras_dynar_get_cpy (the old gras_dynar_get
890 but should be avoided for efficiency reasons) and gras_dynar_get_ptr
891 (which gives you the address of the stored data).
893 gras_dynar_get_as is an helpful macro which allows you to retrieve a
894 copy of the data using an affectation to do the job and not a memcpy.
896 int toto = gras_dynar_get_as(dyn,0,int); rewrites itself to
897 int toto = *(int*)gras_dynar_get_ptr(dyn,0);
899 It does not really speedup the dynar test because they are
900 setting elements all the time (and look them seldom). But the dict does
901 far more lookup than setting.
903 So, this brings the dict_crash test from ~33s to ~25s (200000 elms).
905 2004-10-05 Martin Quinson
906 - Allow to (en/dis)able the cycle detection at run time.
908 Whether we should check for cycle or not is now a property of each
909 datatype. When you think there may be some cycle, use datadesc_cycle_set.
910 datadesc_cycle_unset allow to remove this property when previously set.
912 Note that the cycle detection is off by default since it impacts the
913 performance. Watch the data you feed GRAS with ;)
915 This property is hereditary. Any element embedded in a structure having it
916 set have it set for the time of this data exchange.
918 You should set it both on sender and receiver side. If you don't set it on
919 sender side, it will enter an endless loop. If you forget on receiver
920 side, the cycles won't be recreated after communication.
922 - Header reorganization.
923 Kill gras_private.h, each submodule must load the headers it needs.
925 2004-10-04 Martin Quinson
926 - Interface revolution: do not try to survive to malloc failure.
928 Now, gras_malloc and friends call gras_abort() on failure.
929 As a conclusion, malloc_error is not a valid error anymore, and all
930 functions for which it was the only gras_error_t return value are
931 changed. They now return void, or there result directly.
932 This simplify the API a lot.
934 2004-09-29 Martin Quinson
935 - Re-enable raw sockets.
936 Created by gras_socket_{client,server}_ext;
937 Used with gras_raw_{send,recv}
940 It should allow to kill the last bits of gras first version soon.
942 This is not completely satisfactory yet (duplicate code with
943 chunk_{send,recv}; a bit out of the plugin mechanism), but it should
946 - Simplify transport plugin (internal) interface by not passing any
947 argument to _server and _client, but embedding them in the socket
950 2004-09-28 Martin Quinson
951 - Finish the port to AIX.
952 autoconf was my problem (segfault within the malloc replacement
953 function. No idea why)
955 2004-09-16 Martin Quinson
956 - Fix some size_t madness on 64bit architectures.
958 2004-09-08 Martin Quinson
959 - Reduce the number of system headers loaded, overload some more system
960 calls (such as malloc to cast the result of the system one, and work
962 - Fix and reintroduce the config support
964 2004-09-07 Martin Quinson
965 - Source code reorganization to allow Arnaud to surf all over there.
966 - Allow to document the logging categories.
967 - Remove all uppercase from logging categories and useless cleanup in names.
969 2004-08-18 Martin Quinson
970 Version 0.6.2 (protocol not changed; API changed)
971 - Interface cleanup: gras_msgtype_by_name returns the type (instead of a
972 gras_error_t), and NULL when not found. Functions expecting a msgtype
973 as argument (msg_wait; msg_send) deal with NULL argument by providing a
974 hopefully usefull message.
975 - Portability to prehistoric sparcs again
977 2004-08-17 Martin Quinson
978 Version 0.6.1 (protocol not changed; ABI not changed)
979 - prealloc some buffers to speed things up
981 2004-08-11 Martin Quinson
982 Version 0.6 (protocol not changed; ABI expended)
983 - The parsing macro can deal with the references, provided that you add
984 the relevant annotations (using GRAS_ANNOTE(size,field_name))
986 2004-08-09 Martin Quinson
987 Version 0.5 (protocol not changed; ABI changed)
988 - Allow to off turn the cycle detection code in data exchange at
989 compilation time. It should be at run time, but I'm short of time (and
990 the config stuff is still broken). That way, we keep dict out of the
991 critical path, which is good because the performance is poor:
992 - search not dichotomial yet
993 - dynar give no way to access their content and memcpy everytime
994 - In composed data description (struct, ref and so on), stop foolness of
995 keeping the subtype's ID, but store the type itself. This keeps sets out
996 of the critical path, which is good since they rely on dynar and
997 dictionnaries. The only loose of that is that we cannot detect the
998 redeclaration of a structure/union with another content (but I'm not sure
999 the code detected well this error before anyway). We still can detect
1000 the redefinition discrepancy for the other types.
1001 - Use a whole bunch of optimisation flags (plus -fno-strict-aliasing since
1002 it breaks the code because of type-punning used all over the place).
1003 This breaks on all non-gcc architectures (for now).
1005 All those changes (plus the buffer of last time) allow me to gain 2 order
1006 of magnitude on cruel tests consisting of 800000 array of integers on two
1007 level of a hierarchical structure (200 secondes -> 4 secondes)
1010 - the selector of reference must now return the type it points to, not
1011 the ID of this type.
1013 2004-08-06 Martin Quinson
1014 Version 0.4 (protocol changed; ABI not changed)
1015 - Allow to pass --gras-log argument to processes in simulation mode. Really.
1016 - New debugging level: trace (under debug) to see effect of GRAS_IN/OUT
1017 - Implement a buffer transport, and use it by default (it relies on tcp in
1018 real life and on sg in simulation).
1019 That's a bit hackish since I had a new field to the structure to store
1020 its data without interfering with the subtype ones. Inheritance
1021 is tricky in C. And that's a kind of reverse inheritance with one class
1022 derivating two classes. Or maybe a game with java interfaces. Anyway,
1023 that's damn hard in C (at least).
1024 Moreover, I got tired while trying to ensure plugin separation and
1025 genericity in SG mode. MSG wants me to do weird things, so let's go for
1026 cruel hacks (temporarily of course ;).
1027 See comment in transport_private.h:71
1028 - do not include all the _interface headers in private but in the files
1029 which really need them (to cut the compilation time when they are
1032 2004-07-26 Martin Quinson
1033 Version 0.3 (protocol not changed; ABI changed)
1034 - Major overhault of the datadesc interface to simplify it:
1035 - shorted the function names:
1036 s/gras_datadesc_declare_struct/gras_datadesc_struct/ and so on
1037 - add a trivial way to push/pop integers into the cbps without malloc.
1038 This allows to make really generic sub_type description, which simply
1039 pop their size of the stack.
1040 - add a function gras_datadesc_ref_pop_arr() which does what users want
1041 most of the time: Declare a dynamic array (which pops its size of the
1042 stack) and declare a reference to it. Poor name, but anyway.
1043 - kill the post-send callback, add a post-receive one
1045 2004-07-23 Martin Quinson
1046 Version 0.2 (protocol changed; ABI changed)
1047 - add some testing for cpbs in the test cases, and fix some more bugs.
1048 This invalidate again the little64 data file, since I cannot regenerate
1050 - remove an awfull optimization in the logging stuff, allowing me to:
1051 - understand it again
1052 - learn gcc how to check that the argument match the provided format
1053 - fix all errors revealed by gcc after that
1054 - internal keys of dict are not \0 terminated. Deal with it properly in
1055 loggings instead of segfaulting when the user want to see the logs :-/
1057 2004-07-22 Martin Quinson
1058 - Fix some stupid bug preventing cbps (callback postit) from working
1060 2004-07-21 Martin Quinson
1061 - Some documentation cleanups
1062 - remove the useless last argument of msgtype_declare
1063 - rename the Virtu functions to fit into the 'os' namespace
1064 - move headers src/include -> src/include/gras/ and stop fooling with
1065 gras -> . symbolic link
1066 - make distcheck is now successful
1068 2004-07-19 Martin Quinson
1070 - Build shared library also
1071 - Install html doc to the right location
1072 - stop removing maintainer files in make clean
1073 - build tests only on make check
1075 2004-07-13 Martin Quinson
1077 - No major issue in previous version => change versionning schema
1078 - Re-enable little64 convertion test now that Abdou kindly regenerated the
1079 corresponding dataset.
1081 2004-07-11 Martin Quinson
1083 - Get it working with any kind of structure (we can compute the padding
1084 bytes remotely for all the architectures I have access to)
1085 - Implement the structure parsing macro (still not quite robust/complete)
1086 - Improvement to the remote testing toysuite
1088 2004-07-10 Martin Quinson
1089 [autoconf mechanism]
1090 - get ride of a bunch of deprecated macros
1091 - actually run the test for two-compliment, not only compile it :-/
1092 - test whether the structures get packed (and bail out if yes. Damn.
1093 Alignment is a serious matter)
1094 - test whether the structures get compacted (but respecting the alignment
1095 constraints of each types)
1096 - test whether the array fields of structures can straddle alignment boundaries
1098 - Damnit, double are bigger than float (typo in creation of 'double' datadesc)
1099 (took me 2 hours to find that bug, looking at the wrong place)
1100 - Add gras_datadesc_declare_{union,struct}_close(). They must be used
1101 before sending/receiving and are used to compute the offsets of fields
1102 - Given that padding size depend even on compiler options, keep track of
1103 alignment and aligned_size only for the current architecture. Not a big
1104 deal since we send structure fields one after the other (seems
1106 - Add the datastructure used for IEEE paper by the PBIO guys to the test
1107 program, let it work on linux/gcc/little32. portability todo.
1109 2004-07-08 Martin Quinson
1110 - import and improve remote compilation support from FAST
1111 - make sure make check works on half a dozen of machines out there
1113 2004-07-07 Martin Quinson
1114 Let's say it's version 0.0.3 ;)
1115 - Implement conversions (yuhu!)
1116 - Let it work on solaris (beside conversion, of course)
1117 - Stupid me, using rand() to generate the conversion datatests in not wise.
1119 2004-07-06 Martin Quinson
1120 - Let make dist work, since I'm gonna need it to compile on remote hosts
1121 - Let Tests/datadesc_usage write the architecture on which the file was
1122 generated as first byte.
1123 - Add PowerPC (being also IRIX64), SPARC (also power4) and ALPHA
1124 architecture descriptions.
1125 - Add datadesc_usage.{i386,ppc,sparc} files being the result of execution
1126 on those architectures.
1127 - Optimization: send/recv array of scalar in one shoot
1129 2004-07-05 Martin Quinson
1130 - YEAH! GRAS/SG and GRAS/RL are both able to run the ping example !
1132 - Plug a whole bunch of memleaks
1133 - each process now have to call gras_{init,exit}. One day, their log
1134 settings will be separated
1135 - Continue the code factorisation between SG, RL and common in Transport.
1137 2004-07-04 Martin Quinson
1139 - Redistribution between SG and RL.
1140 We wanna have to accept in SG, so move accepted related parts of RL in
1141 the common part. (more precisely, the dynar of all known sockets is no
1142 more a static in transport.c, but part of the process_data)
1144 [gras_stub_generator]
1145 - Bug fix: Do call gras_process_init from gras_init (wasnt called in RL).
1147 2004-07-03 Martin Quinson
1148 - Create a new log channel tbx containing dict, set, log, dynar (to shut
1149 them all up in one shot)
1151 - Fix the ugly case of reference to dynamic array.
1152 - New (semi-public) function gras_datadesc_size to allow the messaging
1153 layer to malloc the needed space for the buffer.
1155 - gras_socket_close now expect the socket to close (and not its address to
1156 put NULL in it after it). This is because the socket passed to handlers
1157 is one of their argument (=> not writable).
1159 - propagate the interface cleanup from last week in datadesc, ie remove a
1160 superfluous level of indirection. User pass adress of variable
1161 containing data (both when sending and receiving), and not of a variable
1162 being a pointer to the data. Let's say that I like it better ;)
1163 The price for that is constructs like "int msg=*(int*)payload" in
1164 handlers, but it's a fine price, IMHO.
1166 - Let it work in RL (yuhu)
1168 2004-06-21 Martin Quinson
1170 - porting SG plugin and SG select to new standards (works almost).
1171 - plug memleaks and fix bugs around.
1174 - cleanup the prototype of data recv and force users to specify when they
1175 want to handle references to objects. Test case working even for cycles.
1176 - plug memleaks. Valgrind is perfectly ok with this.
1178 2004-06-12 Martin Quinson
1180 - cleanup the separation between plugin and main code in plugin creation
1182 2004-06-11 Martin Quinson
1184 - Reput hook for raw sockets, needed for BW experiments
1185 - kill a few lines of dead code
1186 [Data description] Interface cleanup
1187 - gras_datadesc_by_name returns the searched type or NULL.
1188 That way, no variable is needed to use a type desc once, which makes
1190 - gras_datadesc_declare_[struct|union]_append_name is removed. The last
1191 two parameters were strings (field name, type name), leading to
1193 [Dicos] Interface cleanup
1194 - gras_dico_retrieve -> gras_dico_get ; gras_dico_insert -> gras_dico_set
1195 This is consistant with the dynar API.
1197 2004-04-21 Martin Quinson
1199 - Porting to new standards.
1201 - interface cleanup.
1202 There is no bag anymore, no need to take extra provision to mask the
1203 pointers behind "ID".
1204 Better splitup of functions between files create/exchange/convert.
1205 This is still a bit artificial since convert and receive are so
1206 interleaved, but anyway.
1208 - add a queued message list to procdata (the ones not matching criteria
1210 - factorize some more code between SG and RL wrt procdata
1212 - use gras_exit in example to track memleaks
1213 - get rid of gs_example now that GS is properly integrated into gras
1214 - update run_test to integrate the lastest tests (datadesc)
1216 - rename WARNINGn macros to WARNn since it prooved error-prone
1218 2004-04-19 Martin Quinson
1220 - register init/exit functions within gras module mechanism
1221 - send/receive function.
1222 Convertion is not implemented, but short-cutted if not needed.
1223 struct/array elements are sent one by one (instead of block-wise), but
1224 nobody really cares (yet). Get a prototype before optimizing.
1225 - tests (using a file socket) for DD send/receive on:
1226 - base types: int, float
1227 - array: fixed size, string (ie ref to dynamic string)
1228 - structure: homogeneous, heterogeneous
1229 - chained list, graph with cycle
1230 Believe it or not, valgrind is not too unhappy with the results. The
1231 cycle happily segfaults, but the others are ok. And I'm sick of pointers
1235 - Bugfix when using a filename explicitely (instead of '-')
1237 2004-04-09 Martin Quinson
1239 - factorize more code between RL and SG in socket creation
1240 - Complete the implementation and tests of:
1242 o file (only in RL, and mainly for debugging)
1244 I lost 3 days to design a portable address resolver, and then decided
1245 that the prototype mainly have to run on my box.
1246 Addressing portability too early may be like optimizing too early :-/
1248 - use gras_init in the Tests instead of the crappy parse_log_opt
1249 (the latter function is removed)
1250 [Conditional execution]
1251 - New functions: gras_if_RL/gras_if_SG (basic support for this)
1252 [Code reorganisation]
1253 - Get rid of libgrasutils.a since it makes more trouble than it solves.
1254 Build examples against the RL library, since there is no way to disable
1255 its creation for now.
1257 For information, the beginning of coding on GRAS was back in june
1258 2003. I guess that every line has been rewritten at least twice since