1 SimGrid (3.1) unstable; urgency=low
4 * complete rewrote of the KCCFLN05 workstation model. It is now an
5 extension of the classical CLM03 model that gracefully handles
6 failures. This is now the standard model for MSG and GRAS. It doesn't
7 handle parallel tasks yet though. [AL]
8 * Bug fix: Weights were not correctly set in the network part.
9 WARNING: This may have resulted in incorrect results with simulations
10 where there are more than one flow on a given link. [AL]
13 * After a (long ?) discussion on simgrid-devel, we have decided that the
14 convention we had on units was stupid. That is why it has been decided
15 to move from (MBits, MFlops, seconds) fo (Bits, Flops, seconds).
16 WARNING : This means that all previous platform files will not work as
17 such with this version! A warning is issued to ask users to update
19 A conversion script can be found in the contrib module of the CVS, under
20 the name contrib/platform_generation/surfxml_update.pl [MQ]
23 * Bug fix: Processes were started in reverse order, wrt deployment file.
24 WARNING: if your code relies on this bug, please fix it. [AL]
25 * Bug fix: Add a test in MSG_task_execute to stop whenever a task is
26 being executed on two different locations. [AL]
27 * Bug fix: Failures are now better supported thanks to Derrick's tests
28 (there was many failure situations I hadn't thought of and that weren't
29 correctly handled). [AL]
32 * New! a real RPC mecanism, as it ought to be since too long. [MQ]
33 Exception occuring on server-side are propagated back to client (!).
35 API CHANGE: the callback changed their prototype. Change:
36 int my_handler(gras_socket_t expeditor, void *payload_data) {
38 int my_handler(gras_msg_cb_ctx_t ctx , void *payload_data) {
39 gras_socket_t expeditor=gras_msg_cb_ctx_from(ctx);
41 * New! function: gras_msg_handleall to deal with all messages arriving
42 within a given period.
46 - Do not force experiment sizes to be expressed in kb, or it becomes
47 impossible to mesure the latency this way (needs one byte-long tests)
48 WARNING: this changes the amok_bw_* function semantic. [MQ]
49 - Implements the link saturation stuff. [MQ]
50 * Host management module:
51 New! module factorizing code that we wrote over and over [MQ].
54 * New module: cunit (my jUnit implementation in ansi C) [MQ]
55 - Test units are placed directly into the library code, they get extracted
56 automatically and placed into the src/testall binary.
57 - Convert most of the XBT tests to this system.
58 * New functions: xbt_dynar_getfirst_as() and xbt_dynar_getlast_as() [MQ]
59 * XML parsing: rewrote parts of flexml to enable multiple xml parsers to
60 live in the same C code. This required to change a little bit the API
61 of surfxml parsing but shouldn't be an issue for end-users. [AL]
62 * New module: sparse graph structure with basic algorithms (this is work
63 in progress and the API is not considered to be frozen yet). [AL]
64 * Display more information on backtraces: source line & function names are
65 now displayed just like valgrind does (rely on addr2line tool) [MQ]
66 * New function: xbt_backtrace_display(). Sweet while debuging [MQ]
67 * Reworked a little bit some #include statements to load only required
68 headers. Some user code that relied on SimGrid to include stdlib or
69 stdio may need to include it by themselves. [AL]
70 * Fixed xbt/log.h. A missing SG_BEGIN_DECL prevented compilation with
75 SimGrid (3.0.1) unstable; urgency=low
78 * Unfortunately, I had missed 5 misnamed functions:
79 xbt_fifo_item_t xbt_fifo_newitem(void);
80 void xbt_fifo_freeitem(xbt_fifo_item_t);
81 xbt_fifo_item_t xbt_fifo_getFirstItem(xbt_fifo_t l);
82 xbt_fifo_item_t xbt_fifo_getNextItem(xbt_fifo_item_t i);
83 xbt_fifo_item_t xbt_fifo_getPrevItem(xbt_fifo_item_t i);
84 They're now deprecated. Please use their new versions:
85 xbt_fifo_item_t xbt_fifo_new_item(void);
86 void xbt_fifo_free_item(xbt_fifo_item_t);
87 xbt_fifo_item_t xbt_fifo_get_first_item(xbt_fifo_t l);
88 xbt_fifo_item_t xbt_fifo_get_next_item(xbt_fifo_item_t i);
89 xbt_fifo_item_t xbt_fifo_get_prev_item(xbt_fifo_item_t i);
91 * Bugfix: really disconnect fifo items which are remove_item()ed [AL]
92 * Documentation: xbt_log module unmercifully reworked [MQ]
93 * Bugfix: there was a problem with the ending of contexts with
94 the pthread backend. It caused some weird deadlock or behavior
95 depending on the pthread implementation. [AL]
96 * Bugfix: get the exceptions raised in the simulator repport where
97 and why they come from when they are not catched in time [AL, MQ]
100 * Bugfix: Do repport the error when two non-connected hosts try to
101 exchange data (Thanks to Flavien for stumbling into this one) [AL]
104 * Add additionnal checkings on communications. Assert that two
105 communicating hosts are connected by a set of links... [AL]
108 * Add additionnal checkings on channel values in communication [AL]
109 * New: MSG_task_get_source to see on which host a task was generated [HC]
110 * New: int MSG_task_probe_from_host(int channel, m_host_t host): returns
111 the number of tasks waiting to be received on channel and sent
113 * New: MSG_error_t MSG_task_get_from_host(m_task_t * task, int channel, m_host_t host);
114 waits for the first task coming from a given host.. [AL]
116 GRAS new functionnalities: [MQ]
117 * Enhance the parsing macro to allow the size of multidimentional objects
118 to be given thru annotations.
119 * New example (and documentation): Matrix Multiplication a la RPC
120 (as when I was young!) and fix a bunch of bugs found on the way.
122 GRAS performance improvements: [MQ]
124 * Reduce the amount of cbps creation/destruction by making it static to
125 datadesc_send/recv() and using a (newly created) cbps_reset (based on
128 * Change libdata to a set so that we can search for stuff by ID (and thus
129 reduce the insane amount of dict lookups)
132 * Actually implement gras_datadesc_copy() so that we don't have to mimick
133 RL communication on top of SG since it's so uneffective.
134 It may also be used for inter-thread communication in RL, one day.
135 * Use gras_datadesc_copy() to exchange messages on top of SG
137 - improve message exchange performance on top of SG
138 - deprecate transport_plugin_sg.c:gras_trp_sg_chunk_send() & recv()
139 * Don't exchange on the network the size of the used part of buffer,
140 instead, specify the possible buffer size to read().
142 - reduces the amount of read/write calls (one pair per exchange)
143 - reduces the amount of exchanged data (the size)
144 - allows to retrieve all arrived data on receiver side, if we don't need
145 it right now (subsequent read will peek the buffer)
146 - allows the receiver to proceed with the begining of the stream before
147 everything is arrived
148 - make it possible to build an iov transport (using readv/writev)
150 - take care of the data with non-stable storage (like stacked data),
152 * If possible, TCP send uses vector I/O (when writev() is here)
153 - Don't use it for receive since we send data sizes and data on the
154 same stream, so we wouldn't be able to chain large amount of chunks
155 before having to flush the stuff to read the size.
156 * Rework the transport plugin mecanism to simplify it and reduce the
157 amount of pointer dereferencement when searching for the right function
160 * I guess that now, we do almost as few system calls as possible while
161 doing as few data copy as possible.
163 To improve it further, we could try to send all the sizes first and then
164 all the data (to use iov on receiving size), but it's only a partial
165 solution: when you have 2 dimensional data, the sizes of the second
166 dimension is data of the first dimension, so you need 3 streams.
168 I'm not sure the potential performance gains justify the coding burden.
170 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 21 Oct 2005 14:42:20 +0200
172 SimGrid (3.00) stable; urgency=low
175 * New! Give the possibility to hijack the surf parser and thus bypass
176 MSG_create_environment and MSG_launch_application. Have a look at
177 examples/msg/msg_test_surfxml_bypassed.c to see how it can be done.
179 -- Arnaud Legrand <simgrid-devel@lists.gforge.inria.fr> Sat, 20 Aug 2005 23:25:25 -0700
181 SimGrid (2.96) unstable; urgency=low
186 * New! Exception handling with setjmp or such (code from OSSP ex) [MQ]
187 This deprecates the xbt_error_t mecanisms.
188 It modifies (simplifies) all XBT and GRAS API.
189 MSG API keeps unchanged (exceptions raised by XBT are catched from
190 within MSG and masked with existing error handling facilities)
193 * New! Add a FATPIPE model. [AL]
194 * New! Add a parallel task model. [AL]
195 * New! Add automatically a loopback interface (in the default
196 network model) if none was precised.
199 * Bugfix: MSG_process_resume now works with the current running process.
201 * New! Add MSG_parallel_task_create and MSG_parallel_task_execute. [AL]
202 * Modification of MSG_task_get_compute_duration. Once a task has been
203 processed, the value returned by this function is now equal to 0. [AL]
204 * New! Add double MSG_task_get_remaining_computation(m_task_t task) and
205 MSG_error_t MSG_task_cancel(m_task_t task). Add a state
206 (MSG_TASK_CANCELLED) to MSG_error_t corresponding to the cancelation
207 of a m_task. For now, MSG_task_cancel only works with computation
209 * New! Add double MSG_get_host_speed(m_host_t h) that returns the speed
210 of the processor (in Mflop/s) regardless of the current load on the
212 * API Change: use proper naming convention for MSG_getClock and
213 MSG_process_isSuspended: MSG_get_clock and MSG_process_is_suspended.
215 * New! Add void MSG_task_set_priority(m_task_t task, double priority).
216 This function changes the priority of a computation task. This priority
217 doesn't affect the transfer rate. A priority of 2 will make a task
218 receive two times more cpu power than the other ones. This function
219 has been added to suit the needs of Nguyen The Loc and hasn't been that
220 much tested yet. So if it fails, please report it and send me your code.
222 * API Change: removed all functions and types that were marked "deprecated"
223 since many months. Renamed MSG_global_init_args to MSG_global_init.
225 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Mon, 8 Aug 2005 17:58:47 -0700
227 SimGrid (2.95) unstable; urgency=low
230 * Steal some nice code to GNU pth to fix context detection and usage [AL]
231 * Cleanup in the xbt_config API; add configuration callbacks. [MQ]
232 * Cleanup in the initialization API: the unused "defaultlog" is dead. [MQ]
235 * Bugfix: Allow absolute paths for platform description files [MQ]
236 * Bugfix: do free the variables after use. Leads to drastic performance
238 * Implement max_duration (ie, timeouts) on resources [AL]
241 * Implement MSG_config to configure MSG at runtime. xbt_cfg test on a real
243 * Implement MSG_channel_select_from() to help GRAS now that SURF provide
244 the needed support (timeouts) [AL]
247 * Implement measurement sockets. You can now get the bandwidth between two
248 hosts thanks to AMOK (see below). [MQ]
249 * gras_datadesc_dynar() builds a dynar type descriptor, allowing to send
250 dynar over the network (yeah) [MQ]
251 * Real (even if simplistic) implementation of gras_os_myname() on RL [MQ]
252 * simple/static token-ring example. [Alexandre Colucci and MQ]
253 * Use MSG_channel_select_from() and remove the *slow* hack we had to put
257 * Differentiate the types "char[22]" and "unsigned char[22]" in automatic
258 type parsing. "short" and "long" modifiers were also ignored; other
259 modifier (such as reference level) are still ignored. [MQ]
260 * Embeed the buffer size within the buffer itself on SG. [MQ]
261 That way, send() are atomic and cannot get intermixed anymore (at least
262 the ones which are less than 100k; bigger messages still have the issue)
263 * Array size pushed by the field, not by the field type (or each
264 and every long int will push stuff to the cbps) [MQ]
265 * use select() to sleep since it allows to portably sleep less than one
268 GRAS (minor cleanups)
269 * <project>.Makefile.local (generated from gras_stub_generator) |MQ]:
272 * Type Callbacks now receive the gras_datadesc_type_t they work on as argument.
273 * type category 'ignored' killed as it was never used and were difficult
275 * whether a type can cycle or not is now a flag, leaving room for more
276 flags (as "ignored", if we feel the need one day ;)
277 * Rename raw sockets to measurement sockets since "raw" has another
278 meaning in networking community.
281 * Advanced Metacomputing Overlay Kit introduction. It is based over GRAS
282 and offers features not belonging to GRAS but that most applications
283 need. One day, it may be a set of plugins loadable at runtime.
284 * New module: bandwidth
285 bandwidth measurement between arbitrary nodes running this module. [MQ]
287 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Thu, 30 Jun 2005 16:29:20 -0700
289 SimGrid (2.94) unstable; urgency=low
291 The first beta release of SimGrid 3 !
295 * Update the main page and the FAQ. Adding references to gforge.
298 * Add a gras_os_getpid function.
301 * Add MSG_task_get_compute_duration() and MSG_task_get_data_size()
302 * Extend the logs so that they also print PID, hostname, date, ... if
304 * Convert the MSG example to the use of xbt_logs instead of PRINT_MESSAGE,
305 and kill the old version which were in testsuite/
306 * Rewrite tools/MSG_visualization/colorize.pl for using with logs instead
310 * Add xbt_os_time(). As the rest of xbt/portability, this is not public
311 for users. Instead, each programming environment (GRAS, MSG,...) use it
312 when needed to provide such a feature to users.
313 Don't shortcut the mecanism or you will also shortcut the virtualization
314 you need on the simulator.
318 * Cleanups in configury with regard to compile optimization/warning flags.
319 Also add -fno-loop-optimize to any powerpc since it's the optimization
320 killing gcc (< 3.4.0).
321 * Doxygen cleanups: move MSG examples, kill the second Doxygen phase
322 needed by MSG examples complications
323 * Borrow configury beautifications from PHP
326 * Bugfix: XBT_LOG_NEW_DEFAULT_CATEGORY now compiles without compiler
327 warning (thanks loris for stumbling into this one).
328 * Bugfix: stop loading private headers (gras_config.h) from the public
332 * Change SIMGRID_INSTALL_PATH to GRAS_ROOT in Makefiles generated for user.
333 * Rename gras_get_my_fqdn to gras_os_myname and implement it in the simulator
334 RL would imply a DNS resolver, which is *hard* to do in a portable way
335 (and therefore delayed).
336 * Implement a real timer mecanism and use it in timing macros. This allows
337 to avoid rounding errors and get a 0.000005 sec precision in timing
338 macros. While I was at it, various cleanups:
339 - allow to declare more than one timed section per file (fix a stupid bug)
340 - move some private declaration to the right place
341 - merge conditional execution and timing macros into emulation module
342 - document the module
343 - make sure the module cleanups its mess on gras_exit
344 * Documentation improvements:
345 - (new) how to compile applications using GRAS
346 - (new) emulation support (timing macros)
348 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 13 May 2005 10:49:31 +0200
350 SimGrid (2.93) unstable; urgency=low
352 Alpha 4 on the path to SimGrid 3 (aka the "neuf-trois" version)
355 - Use Paje properly where used. Still to be sanitized properly.
356 - Portability fix: Add an implementation of the contexts using pthread
360 - Add xbt_procname(): returns the name of the current process.
361 Use it to show the current process's name in all logging.
363 - fix detection of older flex version and the reaction, since we do
364 depend on modern ones (we use lex_destroy)
365 - Better separation of SG and RL in the libs: remove all simulation code
366 from libgras. As a result, this lib is now only 200k when stripped.
367 Some of the xbt modules may also be duplicated (two sets and such) and
368 should be cleaned/killed before SG3.
369 - Insist on using xlC on AIX because of weird problems involving gcc there.
370 - Cleanup the make remote stuff. This is now done by scripts
371 tools/graspe-{master,slave} (GRAS Platform Expender). This is still
372 mainly for our private use, but we're working on changing them to user
375 - Bugfix: flush the socket on close only if there is some *output*.
376 - Bugfix: flush idempotent when there's nothing to send (don't send size=0)
378 - Add MSG_task_get_name. The task names are mainly for debugging purpose,
381 -- SimGrid team <simgrid2-users@listes.ens-lyon.fr> Fri, 4 Mar 2005 14:32:37 -0800
383 SimGrid (2.92) unstable; urgency=low
385 Alpha 3 on the path to SimGrid 3
389 - New! First try of benchmarking macros.
390 - New! First try so that gras_stub_generator generate deployment and
391 remote compilation helpers.
393 - Bugfix: Initialization fix in msg_test.
397 - Bugfix: applied patch to lexer so that it doesn't need a huge heap.
399 - Bugfix: let dicts work with NULL content (_foreach didn't) and cleanups
401 - API Change: gras_os_sleep to take the amount of seconds as a double.
402 Accepting an int was error prone since it was the only location where
403 seconds were coded as such. It leaded to damn rounding errors.
404 - Bugfix: Hard to belive that timers ever worked before this.
406 -- SimGrid team <simgrid2-users@listes.ens-lyon.fr> Wed, 23 Feb 2005 22:09:21 +0100
408 SimGrid (2.91) unstable; urgency=low
410 Alpha 2 on the path to SimGrid 3
414 - Bug fix in the lmm_solver.
416 - New! Interface to Paje (see http://www-id.imag.fr/Logiciels/paje/)
417 through the function MSG_paje_output.
418 - New! Introducing two new functions MSG_process_kill() and MSG_process_killall().
419 - It is possible to bound the rate of a communication in MSG with
420 MSG_task_put_bounded() (was already in the previous version but I had forgotten
421 to write it in the changelog).
422 - Bug fix to let GRAS run on top of MSG until we move it directly on top
427 - Various cleanups to the autotools stuff
428 - Begin to move Gras examples to examples/gras/
429 - Let make distcheck work again (yeah!)
431 - documentation overhauled using doxygen.
432 gtk-doc-tools is dead in SimGrid now.
433 - Automatically extract all existing logging categories, and add the list
434 to the documentation (long standing one, to say the less)
436 - Cleanup the known architecture table. Reorder the entries to group what
437 should be, and use a more consistent naming scheme.
438 (some of the test dataset are still to be regenerated)
439 - New! Allow library to register globals on each process just as userdata
441 This is implemented using a xbt_dict and not a xbt_set, so we loose the
442 lookup time (for now).
443 Use it in msg and trp.
444 This cleans a lot the internals and helps enforcing privacy of the
445 headers between the gras components.
446 - New! Add a timer mechanism, not unlike cron(8) and at(1).
447 - Bugfix: gras_os_time was delirious in RL.
448 - Bugfix: gras_trp_select/RL don't run into the wall when asked to select
450 - Reenable GRAS now that it works.
452 -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 14 Feb 2005 14:02:13 -0800
454 SimGrid (2.90) unstable; urgency=low
456 Alpha 1 on the path to SimGrid 3
458 * It is a long time since the last release of SimGrid. I'm sorry about
459 that but as I had told you, I was rewriting a lot of things. I apologize
460 to those who had been reporting bugs to me and that I had not answered.
461 If your bug is still in the new version, please tell me. Here is a
462 summary of the main changes.
464 * REVOLUTION 1: The SimGrid project has merged with the GRAS project
465 lead by Martin Quinson. As a consequence SimGrid gains a lot in
466 portability, speed, and a lot more but you'll figure it out later.
467 SimGrid now comprises 3 different projects : MSG, GRAS and SMPI.
468 I wanted to release the new MSG as soon as possible and I have
469 broken GRAS, which is the reason why, for now, only MSG is fully
470 functional. A laconic description of these projects is available
471 in the documentation.
473 * REVOLUTION 2: I have removed SG and I am now using a new simulation
474 kernel optimized for our needs (called SURF but only the developers
475 should use it). Hence, MSG is now roughly 30 times faster and I think
476 that by rewriting a little bit MSG, I could event speed it up a little
477 bit more. Beside the gain in speed, it is also much easier to encode a
478 new platform model with SURF than it was with SG. More to come...
480 * REVOLUTION 3: I have tried to change a little as possible the API of
481 MSG but a few things really had to disappear. The main differences
482 with the previous version are :
483 1) no more m_links_t and the corresponding functions. Platforms are
484 directly read from a XML description and cannot be hard-coded
485 anymore. The same format is used for application deployment
486 description. The new format is described in the documentation.
487 Have a look in tools/platform_generation. There is a tiny script
488 that converts from the old platform format to the new one. Concerning
489 the application deployment format, parsing the old one is tricky.
490 I think most of you should however be able to convert your files. If
491 it is really an issue, I can write a C code that does the conversion.
493 2) the toolbox tbx does not exist anymore. We now have a library
494 with much more data-structures but without the hash-tables (we have
495 dictionaries that are much faster).
497 -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 31 Jan 2005 10:45:53 -0800
499 *****************************************************************************
500 * Follows the old GRAS changelog. It does not follow the same syntax, but I *
501 * don't feel like converting the oldies. (Mt) *
502 *****************************************************************************
505 Version 2.90: "the long awaited one"
506 - Finished rewriting and debugging MSG. Rewrote the documentation.
507 - disable GRAS for now since it needs to be ported to the newest SG
510 - Finish the port to windows (using mingw32 for cross-compile)
513 - Main loop and datastructures of SURF. A cpu resource object is
514 functional. Surf can thus be used to create cpu's with variable
515 performance on which you can execute some actions.
517 2004-11-15 Martin Quinson
518 - Port to ARM. Simply added the alignment and size descriptions. Should
519 work, but the ARM machines are so slow that I didn't had the opportunity
520 to 'make check' over there yet.
522 2004-11-15 Arnaud Legrand
523 - Trace manager now written. It uses a heap structure and is therefore
524 expected to be efficient. It may however be speeded up (particularly
525 when many events occur at the same date) by using red and black
526 trees. One day maybe...
527 - Max-min linear system solver written. It uses a sparse matrix
528 structure taking advantage of its expected use. Most operations are
529 O(1) and free/calloc are called as few as possible. The computation of
530 the minimum could however be improved by using a red and black tree
533 2004-11-03 Arnaud Legrand
534 - Rename every gras_* function that was in xbt/ to its xbt_
536 - Add a heap and a doubly-linked list to xbt
537 - Added a dichotomy to the dictionaries. make check works as well before
538 so I assume that the patch is correct. I do not know however if things
539 run effectively faster than before now. :)
541 Inclusion of the SimGrid tree in the GRAS one. The archive is renamed to
542 SimGrid, and the version number is bumped to 2.x
544 2004-10-29 Martin Quinson
545 - Introduction of the remote errors.
546 They are the result of a RMI/RPC on the remote machine.
547 ErrCodes being scalar values, you can't get the host on which those
548 errors did happen. Extending the error mechanism as in Gnome is possible.
549 No idea yet whether it is a good idea.
551 2004-10-28 Martin Quinson
552 - Interface revolution: the Starred Structure Eradication.
553 I used to do typedef struct {} toto_t; and then handle *toto_t.
554 Arnaud (and Oli) didn't like it, and I surrendered. Now, you have:
555 - ???_t is a valid type (builded with typedef)
556 - s_toto_t is a structure (access to fields with .)
557 - s_toto is a structure needing 'struct' keyword to be used
558 - e_toto_t is an enum
559 - toto_t is an 'object' (struct*)
561 typedef struct s_toto {} s_toto_t, *toto_t;
562 typedef enum {} e_toto_t;
563 Moreover, only toto_t (and e_toto_t) are public. The rest (mainly
564 s_toto_t) is private.
566 - While I was at it, all gras_<obj>_free() functions want a gras_<obj>_t*
567 so that it can set the variable to NULL. It was so for dicts and sets,
568 it changed for dynars.
570 - Fix a bunch of memleaks in dict_remove
571 - Fix a bug in sg/server_socket opening: it failed all the time.
573 2004-10-07 Martin Quinson
574 - Speed up dynar lookup operation a bit.
576 gras_dynar_get is dead.
578 Now, you can choose between gras_dynar_get_cpy (the old gras_dynar_get
579 but should be avoided for efficiency reasons) and gras_dynar_get_ptr
580 (which gives you the address of the stored data).
582 gras_dynar_get_as is an helpful macro which allows you to retrieve a
583 copy of the data using an affectation to do the job and not a memcpy.
585 int toto = gras_dynar_get_as(dyn,0,int); rewrites itself to
586 int toto = *(int*)gras_dynar_get_ptr(dyn,0);
588 It does not really speedup the dynar test because they are
589 setting elements all the time (and look them seldom). But the dict does
590 far more lookup than setting.
592 So, this brings the dict_crash test from ~33s to ~25s (200000 elms).
594 2004-10-05 Martin Quinson
595 - Allow to (en/dis)able the cycle detection at run time.
597 Whether we should check for cycle or not is now a property of each
598 datatype. When you think there may be some cycle, use datadesc_cycle_set.
599 datadesc_cycle_unset allow to remove this property when previously set.
601 Note that the cycle detection is off by default since it impacts the
602 performance. Watch the data you feed GRAS with ;)
604 This property is hereditary. Any element embedded in a structure having it
605 set have it set for the time of this data exchange.
607 You should set it both on sender and receiver side. If you don't set it on
608 sender side, it will enter an endless loop. If you forget on receiver
609 side, the cycles won't be recreated after communication.
611 - Header reorganization.
612 Kill gras_private.h, each submodule must load the headers it needs.
614 2004-10-04 Martin Quinson
615 - Interface revolution: do not try to survive to malloc failure.
617 Now, gras_malloc and friends call gras_abort() on failure.
618 As a conclusion, malloc_error is not a valid error anymore, and all
619 functions for which it was the only gras_error_t return value are
620 changed. They now return void, or there result directly.
621 This simplify the API a lot.
623 2004-09-29 Martin Quinson
624 - Re-enable raw sockets.
625 Created by gras_socket_{client,server}_ext;
626 Used with gras_raw_{send,recv}
629 It should allow to kill the last bits of gras first version soon.
631 This is not completely satisfactory yet (duplicate code with
632 chunk_{send,recv}; a bit out of the plugin mechanism), but it should
635 - Simplify transport plugin (internal) interface by not passing any
636 argument to _server and _client, but embedding them in the socket
639 2004-09-28 Martin Quinson
640 - Finish the port to AIX.
641 autoconf was my problem (segfault within the malloc replacement
642 function. No idea why)
644 2004-09-16 Martin Quinson
645 - Fix some size_t madness on 64bit architectures.
647 2004-09-08 Martin Quinson
648 - Reduce the number of system headers loaded, overload some more system
649 calls (such as malloc to cast the result of the system one, and work
651 - Fix and reintroduce the config support
653 2004-09-07 Martin Quinson
654 - Source code reorganization to allow Arnaud to surf all over there.
655 - Allow to document the logging categories.
656 - Remove all uppercase from logging categories and useless cleanup in names.
658 2004-08-18 Martin Quinson
659 Version 0.6.2 (protocol not changed; API changed)
660 - Interface cleanup: gras_msgtype_by_name returns the type (instead of a
661 gras_error_t), and NULL when not found. Functions expecting a msgtype
662 as argument (msg_wait; msg_send) deal with NULL argument by providing a
663 hopefully usefull message.
664 - Portability to prehistoric sparcs again
666 2004-08-17 Martin Quinson
667 Version 0.6.1 (protocol not changed; ABI not changed)
668 - prealloc some buffers to speed things up
670 2004-08-11 Martin Quinson
671 Version 0.6 (protocol not changed; ABI expended)
672 - The parsing macro can deal with the references, provided that you add
673 the relevant annotations (using GRAS_ANNOTE(size,field_name))
675 2004-08-09 Martin Quinson
676 Version 0.5 (protocol not changed; ABI changed)
677 - Allow to off turn the cycle detection code in data exchange at
678 compilation time. It should be at run time, but I'm short of time (and
679 the config stuff is still broken). That way, we keep dict out of the
680 critical path, which is good because the performance is poor:
681 - search not dichotomial yet
682 - dynar give no way to access their content and memcpy everytime
683 - In composed data description (struct, ref and so on), stop foolness of
684 keeping the subtype's ID, but store the type itself. This keeps sets out
685 of the critical path, which is good since they rely on dynar and
686 dictionnaries. The only loose of that is that we cannot detect the
687 redeclaration of a structure/union with another content (but I'm not sure
688 the code detected well this error before anyway). We still can detect
689 the redefinition discrepancy for the other types.
690 - Use a whole bunch of optimisation flags (plus -fno-strict-aliasing since
691 it breaks the code because of type-punning used all over the place).
692 This breaks on all non-gcc architectures (for now).
694 All those changes (plus the buffer of last time) allow me to gain 2 order
695 of magnitude on cruel tests consisting of 800000 array of integers on two
696 level of a hierarchical structure (200 secondes -> 4 secondes)
699 - the selector of reference must now return the type it points to, not
702 2004-08-06 Martin Quinson
703 Version 0.4 (protocol changed; ABI not changed)
704 - Allow to pass --gras-log argument to processes in simulation mode. Really.
705 - New debugging level: trace (under debug) to see effect of GRAS_IN/OUT
706 - Implement a buffer transport, and use it by default (it relies on tcp in
707 real life and on sg in simulation).
708 That's a bit hackish since I had a new field to the structure to store
709 its data without interfering with the subtype ones. Inheritance
710 is tricky in C. And that's a kind of reverse inheritance with one class
711 derivating two classes. Or maybe a game with java interfaces. Anyway,
712 that's damn hard in C (at least).
713 Moreover, I got tired while trying to ensure plugin separation and
714 genericity in SG mode. MSG wants me to do weird things, so let's go for
715 cruel hacks (temporarily of course ;).
716 See comment in transport_private.h:71
717 - do not include all the _interface headers in private but in the files
718 which really need them (to cut the compilation time when they are
721 2004-07-26 Martin Quinson
722 Version 0.3 (protocol not changed; ABI changed)
723 - Major overhault of the datadesc interface to simplify it:
724 - shorted the function names:
725 s/gras_datadesc_declare_struct/gras_datadesc_struct/ and so on
726 - add a trivial way to push/pop integers into the cbps without malloc.
727 This allows to make really generic sub_type description, which simply
728 pop their size of the stack.
729 - add a function gras_datadesc_ref_pop_arr() which does what users want
730 most of the time: Declare a dynamic array (which pops its size of the
731 stack) and declare a reference to it. Poor name, but anyway.
732 - kill the post-send callback, add a post-receive one
734 2004-07-23 Martin Quinson
735 Version 0.2 (protocol changed; ABI changed)
736 - add some testing for cpbs in the test cases, and fix some more bugs.
737 This invalidate again the little64 data file, since I cannot regenerate
739 - remove an awfull optimization in the logging stuff, allowing me to:
740 - understand it again
741 - learn gcc how to check that the argument match the provided format
742 - fix all errors revealed by gcc after that
743 - internal keys of dict are not \0 terminated. Deal with it properly in
744 loggings instead of segfaulting when the user want to see the logs :-/
746 2004-07-22 Martin Quinson
747 - Fix some stupid bug preventing cbps (callback postit) from working
749 2004-07-21 Martin Quinson
750 - Some documentation cleanups
751 - remove the useless last argument of msgtype_declare
752 - rename the Virtu functions to fit into the 'os' namespace
753 - move headers src/include -> src/include/gras/ and stop fooling with
754 gras -> . symbolic link
755 - make distcheck is now successful
757 2004-07-19 Martin Quinson
759 - Build shared library also
760 - Install html doc to the right location
761 - stop removing maintainer files in make clean
762 - build tests only on make check
764 2004-07-13 Martin Quinson
766 - No major issue in previous version => change versionning schema
767 - Re-enable little64 convertion test now that Abdou kindly regenerated the
768 corresponding dataset.
770 2004-07-11 Martin Quinson
772 - Get it working with any kind of structure (we can compute the padding
773 bytes remotely for all the architectures I have access to)
774 - Implement the structure parsing macro (still not quite robust/complete)
775 - Improvement to the remote testing toysuite
777 2004-07-10 Martin Quinson
779 - get ride of a bunch of deprecated macros
780 - actually run the test for two-compliment, not only compile it :-/
781 - test whether the structures get packed (and bail out if yes. Damn.
782 Alignment is a serious matter)
783 - test whether the structures get compacted (but respecting the alignment
784 constraints of each types)
785 - test whether the array fields of structures can straddle alignment boundaries
787 - Damnit, double are bigger than float (typo in creation of 'double' datadesc)
788 (took me 2 hours to find that bug, looking at the wrong place)
789 - Add gras_datadesc_declare_{union,struct}_close(). They must be used
790 before sending/receiving and are used to compute the offsets of fields
791 - Given that padding size depend even on compiler options, keep track of
792 alignment and aligned_size only for the current architecture. Not a big
793 deal since we send structure fields one after the other (seems
795 - Add the datastructure used for IEEE paper by the PBIO guys to the test
796 program, let it work on linux/gcc/little32. portability todo.
798 2004-07-08 Martin Quinson
799 - import and improve remote compilation support from FAST
800 - make sure make check works on half a dozen of machines out there
802 2004-07-07 Martin Quinson
803 Let's say it's version 0.0.3 ;)
804 - Implement conversions (yuhu!)
805 - Let it work on solaris (beside conversion, of course)
806 - Stupid me, using rand() to generate the conversion datatests in not wise.
808 2004-07-06 Martin Quinson
809 - Let make dist work, since I'm gonna need it to compile on remote hosts
810 - Let Tests/datadesc_usage write the architecture on which the file was
811 generated as first byte.
812 - Add PowerPC (being also IRIX64), SPARC (also power4) and ALPHA
813 architecture descriptions.
814 - Add datadesc_usage.{i386,ppc,sparc} files being the result of execution
815 on those architectures.
816 - Optimization: send/recv array of scalar in one shoot
818 2004-07-05 Martin Quinson
819 - YEAH! GRAS/SG and GRAS/RL are both able to run the ping example !
821 - Plug a whole bunch of memleaks
822 - each process now have to call gras_{init,exit}. One day, their log
823 settings will be separated
824 - Continue the code factorisation between SG, RL and common in Transport.
826 2004-07-04 Martin Quinson
828 - Redistribution between SG and RL.
829 We wanna have to accept in SG, so move accepted related parts of RL in
830 the common part. (more precisely, the dynar of all known sockets is no
831 more a static in transport.c, but part of the process_data)
833 [gras_stub_generator]
834 - Bug fix: Do call gras_process_init from gras_init (wasnt called in RL).
836 2004-07-03 Martin Quinson
837 - Create a new log channel tbx containing dict, set, log, dynar (to shut
838 them all up in one shot)
840 - Fix the ugly case of reference to dynamic array.
841 - New (semi-public) function gras_datadesc_size to allow the messaging
842 layer to malloc the needed space for the buffer.
844 - gras_socket_close now expect the socket to close (and not its address to
845 put NULL in it after it). This is because the socket passed to handlers
846 is one of their argument (=> not writable).
848 - propagate the interface cleanup from last week in datadesc, ie remove a
849 superfluous level of indirection. User pass adress of variable
850 containing data (both when sending and receiving), and not of a variable
851 being a pointer to the data. Let's say that I like it better ;)
852 The price for that is constructs like "int msg=*(int*)payload" in
853 handlers, but it's a fine price, IMHO.
855 - Let it work in RL (yuhu)
857 2004-06-21 Martin Quinson
859 - porting SG plugin and SG select to new standards (works almost).
860 - plug memleaks and fix bugs around.
863 - cleanup the prototype of data recv and force users to specify when they
864 want to handle references to objects. Test case working even for cycles.
865 - plug memleaks. Valgrind is perfectly ok with this.
867 2004-06-12 Martin Quinson
869 - cleanup the separation between plugin and main code in plugin creation
871 2004-06-11 Martin Quinson
873 - Reput hook for raw sockets, needed for BW experiments
874 - kill a few lines of dead code
875 [Data description] Interface cleanup
876 - gras_datadesc_by_name returns the searched type or NULL.
877 That way, no variable is needed to use a type desc once, which makes
879 - gras_datadesc_declare_[struct|union]_append_name is removed. The last
880 two parameters were strings (field name, type name), leading to
882 [Dicos] Interface cleanup
883 - gras_dico_retrieve -> gras_dico_get ; gras_dico_insert -> gras_dico_set
884 This is consistant with the dynar API.
886 2004-04-21 Martin Quinson
888 - Porting to new standards.
891 There is no bag anymore, no need to take extra provision to mask the
892 pointers behind "ID".
893 Better splitup of functions between files create/exchange/convert.
894 This is still a bit artificial since convert and receive are so
895 interleaved, but anyway.
897 - add a queued message list to procdata (the ones not matching criteria
899 - factorize some more code between SG and RL wrt procdata
901 - use gras_exit in example to track memleaks
902 - get rid of gs_example now that GS is properly integrated into gras
903 - update run_test to integrate the lastest tests (datadesc)
905 - rename WARNINGn macros to WARNn since it prooved error-prone
907 2004-04-19 Martin Quinson
909 - register init/exit functions within gras module mechanism
910 - send/receive function.
911 Convertion is not implemented, but short-cutted if not needed.
912 struct/array elements are sent one by one (instead of block-wise), but
913 nobody really cares (yet). Get a prototype before optimizing.
914 - tests (using a file socket) for DD send/receive on:
915 - base types: int, float
916 - array: fixed size, string (ie ref to dynamic string)
917 - structure: homogeneous, heterogeneous
918 - chained list, graph with cycle
919 Believe it or not, valgrind is not too unhappy with the results. The
920 cycle happily segfaults, but the others are ok. And I'm sick of pointers
924 - Bugfix when using a filename explicitely (instead of '-')
926 2004-04-09 Martin Quinson
928 - factorize more code between RL and SG in socket creation
929 - Complete the implementation and tests of:
931 o file (only in RL, and mainly for debugging)
933 I lost 3 days to design a portable address resolver, and then decided
934 that the prototype mainly have to run on my box.
935 Addressing portability too early may be like optimizing too early :-/
937 - use gras_init in the Tests instead of the crappy parse_log_opt
938 (the latter function is removed)
939 [Conditional execution]
940 - New functions: gras_if_RL/gras_if_SG (basic support for this)
941 [Code reorganisation]
942 - Get rid of libgrasutils.a since it makes more trouble than it solves.
943 Build examples against the RL library, since there is no way to disable
944 its creation for now.