1 SimGrid (3.0.2) unstable; urgency=low
4 * New module: cunit (my jUnit implementation in ansi C) [MQ]
5 - Test units are placed directly into the library code, they get extracted
6 automatically and placed into the src/testall binary.
7 - Convert most of the XBT tests to this system.
8 * New functions: xbt_dynar_getfirst_as() and xbt_dynar_getlast_as() [MQ]
9 * XML parsing: rewrote parts of flexml to enable multiple xml parsers to
10 live in the same C code. This required to change a little bit the API
11 of surfxml parsing but shouldn't be an issue for end-users. [AL]
12 * New module: sparse graph structure with basic algorithms (this is work
13 in progress and the API is not considered to be frozen yet). [AL]
14 * Display more information on backtraces: source line & function names are
15 now displayed just like valgrind does (rely on addr2line tool) [MQ]
16 * New function: xbt_backtrace_display(). Sweet while debuging [MQ]
17 * Reworked a little bit some #include statements to load only required
18 headers. Some user code that relied on SimGrid to include stdlib or
19 stdio may need to include it by themselves. [AL]
20 * Fixed xbt/log.h. A missing SG_BEGIN_DECL prevented compilation with
24 * complete rewrote of the KCCFLN05 workstation model. It is now an
25 extension of the classical CLM03 model that gracefully handles
26 failures. This is now the standard model for MSG and GRAS. It doesn't
27 handle parallel tasks yet however. [AL]
28 * Bug fix: Weights were not correctly set in the network part. This may
29 have resulted in incorrect results with simulations where there are
30 more than one flow on a given link. [AL]
33 * Bug fix: Processes were started in reverse order, wrt deployment file.
34 WARNING: if your code relies on this bug, please fix it. [AL]
35 * Bug fix: Add a test in MSG_task_execute to stop whenever a task is
36 being executed on two different locations. [AL]
37 * Bug fix: Failures are now better supported thanks to Derrick's tests
38 (there was many failure situations I hadn't thought of and that weren't
39 correctly handled). [AL]
42 * New! a real RPC mecanism, as it ought to be since too long. [MQ]
43 Exception occuring on server-side are propagated back to client (!).
45 API CHANGE: the callback changed their prototype. Change:
46 int my_handler(gras_socket_t expeditor, void *payload_data) {
48 int my_handler(gras_msg_cb_ctx_t ctx , void *payload_data) {
49 gras_socket_t expeditor=gras_msg_cb_ctx_from(ctx);
51 * New! function: gras_msg_handleall to deal with all messages arriving
52 within a given period.
56 - Do not force experiment sizes to be expressed in kb, or it becomes
57 impossible to mesure the latency this way (needs one byte-long tests)
58 WARNING: this changes the amok_bw_* function semantic. [MQ]
59 - Implements the link saturation stuff. [MQ]
60 * Host management module:
61 New! module factorizing code that we wrote over and over [MQ].
65 SimGrid (3.0.1) unstable; urgency=low
68 * Unfortunately, I had missed 5 misnamed functions:
69 xbt_fifo_item_t xbt_fifo_newitem(void);
70 void xbt_fifo_freeitem(xbt_fifo_item_t);
71 xbt_fifo_item_t xbt_fifo_getFirstItem(xbt_fifo_t l);
72 xbt_fifo_item_t xbt_fifo_getNextItem(xbt_fifo_item_t i);
73 xbt_fifo_item_t xbt_fifo_getPrevItem(xbt_fifo_item_t i);
74 They're now deprecated. Please use their new versions:
75 xbt_fifo_item_t xbt_fifo_new_item(void);
76 void xbt_fifo_free_item(xbt_fifo_item_t);
77 xbt_fifo_item_t xbt_fifo_get_first_item(xbt_fifo_t l);
78 xbt_fifo_item_t xbt_fifo_get_next_item(xbt_fifo_item_t i);
79 xbt_fifo_item_t xbt_fifo_get_prev_item(xbt_fifo_item_t i);
81 * Bugfix: really disconnect fifo items which are remove_item()ed [AL]
82 * Documentation: xbt_log module unmercifully reworked [MQ]
83 * Bugfix: there was a problem with the ending of contexts with
84 the pthread backend. It caused some weird deadlock or behavior
85 depending on the pthread implementation. [AL]
86 * Bugfix: get the exceptions raised in the simulator repport where
87 and why they come from when they are not catched in time [AL, MQ]
90 * Bugfix: Do repport the error when two non-connected hosts try to
91 exchange data (Thanks to Flavien for stumbling into this one) [AL]
94 * Add additionnal checkings on communications. Assert that two
95 communicating hosts are connected by a set of links... [AL]
98 * Add additionnal checkings on channel values in communication [AL]
99 * New: MSG_task_get_source to see on which host a task was generated [HC]
100 * New: int MSG_task_probe_from_host(int channel, m_host_t host): returns
101 the number of tasks waiting to be received on channel and sent
103 * New: MSG_error_t MSG_task_get_from_host(m_task_t * task, int channel, m_host_t host);
104 waits for the first task coming from a given host.. [AL]
106 GRAS new functionnalities: [MQ]
107 * Enhance the parsing macro to allow the size of multidimentional objects
108 to be given thru annotations.
109 * New example (and documentation): Matrix Multiplication a la RPC
110 (as when I was young!) and fix a bunch of bugs found on the way.
112 GRAS performance improvements: [MQ]
114 * Reduce the amount of cbps creation/destruction by making it static to
115 datadesc_send/recv() and using a (newly created) cbps_reset (based on
118 * Change libdata to a set so that we can search for stuff by ID (and thus
119 reduce the insane amount of dict lookups)
122 * Actually implement gras_datadesc_copy() so that we don't have to mimick
123 RL communication on top of SG since it's so uneffective.
124 It may also be used for inter-thread communication in RL, one day.
125 * Use gras_datadesc_copy() to exchange messages on top of SG
127 - improve message exchange performance on top of SG
128 - deprecate transport_plugin_sg.c:gras_trp_sg_chunk_send() & recv()
129 * Don't exchange on the network the size of the used part of buffer,
130 instead, specify the possible buffer size to read().
132 - reduces the amount of read/write calls (one pair per exchange)
133 - reduces the amount of exchanged data (the size)
134 - allows to retrieve all arrived data on receiver side, if we don't need
135 it right now (subsequent read will peek the buffer)
136 - allows the receiver to proceed with the begining of the stream before
137 everything is arrived
138 - make it possible to build an iov transport (using readv/writev)
140 - take care of the data with non-stable storage (like stacked data),
142 * If possible, TCP send uses vector I/O (when writev() is here)
143 - Don't use it for receive since we send data sizes and data on the
144 same stream, so we wouldn't be able to chain large amount of chunks
145 before having to flush the stuff to read the size.
146 * Rework the transport plugin mecanism to simplify it and reduce the
147 amount of pointer dereferencement when searching for the right function
150 * I guess that now, we do almost as few system calls as possible while
151 doing as few data copy as possible.
153 To improve it further, we could try to send all the sizes first and then
154 all the data (to use iov on receiving size), but it's only a partial
155 solution: when you have 2 dimensional data, the sizes of the second
156 dimension is data of the first dimension, so you need 3 streams.
158 I'm not sure the potential performance gains justify the coding burden.
160 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 21 Oct 2005 14:42:20 +0200
162 SimGrid (3.00) stable; urgency=low
165 * New! Give the possibility to hijack the surf parser and thus bypass
166 MSG_create_environment and MSG_launch_application. Have a look at
167 examples/msg/msg_test_surfxml_bypassed.c to see how it can be done.
169 -- Arnaud Legrand <simgrid-devel@lists.gforge.inria.fr> Sat, 20 Aug 2005 23:25:25 -0700
171 SimGrid (2.96) unstable; urgency=low
176 * New! Exception handling with setjmp or such (code from OSSP ex) [MQ]
177 This deprecates the xbt_error_t mecanisms.
178 It modifies (simplifies) all XBT and GRAS API.
179 MSG API keeps unchanged (exceptions raised by XBT are catched from
180 within MSG and masked with existing error handling facilities)
183 * New! Add a FATPIPE model. [AL]
184 * New! Add a parallel task model. [AL]
185 * New! Add automatically a loopback interface (in the default
186 network model) if none was precised.
189 * Bugfix: MSG_process_resume now works with the current running process.
191 * New! Add MSG_parallel_task_create and MSG_parallel_task_execute. [AL]
192 * Modification of MSG_task_get_compute_duration. Once a task has been
193 processed, the value returned by this function is now equal to 0. [AL]
194 * New! Add double MSG_task_get_remaining_computation(m_task_t task) and
195 MSG_error_t MSG_task_cancel(m_task_t task). Add a state
196 (MSG_TASK_CANCELLED) to MSG_error_t corresponding to the cancelation
197 of a m_task. For now, MSG_task_cancel only works with computation
199 * New! Add double MSG_get_host_speed(m_host_t h) that returns the speed
200 of the processor (in Mflop/s) regardless of the current load on the
202 * API Change: use proper naming convention for MSG_getClock and
203 MSG_process_isSuspended: MSG_get_clock and MSG_process_is_suspended.
205 * New! Add void MSG_task_set_priority(m_task_t task, double priority).
206 This function changes the priority of a computation task. This priority
207 doesn't affect the transfer rate. A priority of 2 will make a task
208 receive two times more cpu power than the other ones. This function
209 has been added to suit the needs of Nguyen The Loc and hasn't been that
210 much tested yet. So if it fails, please report it and send me your code.
212 * API Change: removed all functions and types that were marked "deprecated"
213 since many months. Renamed MSG_global_init_args to MSG_global_init.
215 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Mon, 8 Aug 2005 17:58:47 -0700
217 SimGrid (2.95) unstable; urgency=low
220 * Steal some nice code to GNU pth to fix context detection and usage [AL]
221 * Cleanup in the xbt_config API; add configuration callbacks. [MQ]
222 * Cleanup in the initialization API: the unused "defaultlog" is dead. [MQ]
225 * Bugfix: Allow absolute paths for platform description files [MQ]
226 * Bugfix: do free the variables after use. Leads to drastic performance
228 * Implement max_duration (ie, timeouts) on resources [AL]
231 * Implement MSG_config to configure MSG at runtime. xbt_cfg test on a real
233 * Implement MSG_channel_select_from() to help GRAS now that SURF provide
234 the needed support (timeouts) [AL]
237 * Implement measurement sockets. You can now get the bandwidth between two
238 hosts thanks to AMOK (see below). [MQ]
239 * gras_datadesc_dynar() builds a dynar type descriptor, allowing to send
240 dynar over the network (yeah) [MQ]
241 * Real (even if simplistic) implementation of gras_os_myname() on RL [MQ]
242 * simple/static token-ring example. [Alexandre Colucci and MQ]
243 * Use MSG_channel_select_from() and remove the *slow* hack we had to put
247 * Differentiate the types "char[22]" and "unsigned char[22]" in automatic
248 type parsing. "short" and "long" modifiers were also ignored; other
249 modifier (such as reference level) are still ignored. [MQ]
250 * Embeed the buffer size within the buffer itself on SG. [MQ]
251 That way, send() are atomic and cannot get intermixed anymore (at least
252 the ones which are less than 100k; bigger messages still have the issue)
253 * Array size pushed by the field, not by the field type (or each
254 and every long int will push stuff to the cbps) [MQ]
255 * use select() to sleep since it allows to portably sleep less than one
258 GRAS (minor cleanups)
259 * <project>.Makefile.local (generated from gras_stub_generator) |MQ]:
262 * Type Callbacks now receive the gras_datadesc_type_t they work on as argument.
263 * type category 'ignored' killed as it was never used and were difficult
265 * whether a type can cycle or not is now a flag, leaving room for more
266 flags (as "ignored", if we feel the need one day ;)
267 * Rename raw sockets to measurement sockets since "raw" has another
268 meaning in networking community.
271 * Advanced Metacomputing Overlay Kit introduction. It is based over GRAS
272 and offers features not belonging to GRAS but that most applications
273 need. One day, it may be a set of plugins loadable at runtime.
274 * New module: bandwidth
275 bandwidth measurement between arbitrary nodes running this module. [MQ]
277 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Thu, 30 Jun 2005 16:29:20 -0700
279 SimGrid (2.94) unstable; urgency=low
281 The first beta release of SimGrid 3 !
285 * Update the main page and the FAQ. Adding references to gforge.
288 * Add a gras_os_getpid function.
291 * Add MSG_task_get_compute_duration() and MSG_task_get_data_size()
292 * Extend the logs so that they also print PID, hostname, date, ... if
294 * Convert the MSG example to the use of xbt_logs instead of PRINT_MESSAGE,
295 and kill the old version which were in testsuite/
296 * Rewrite tools/MSG_visualization/colorize.pl for using with logs instead
300 * Add xbt_os_time(). As the rest of xbt/portability, this is not public
301 for users. Instead, each programming environment (GRAS, MSG,...) use it
302 when needed to provide such a feature to users.
303 Don't shortcut the mecanism or you will also shortcut the virtualization
304 you need on the simulator.
308 * Cleanups in configury with regard to compile optimization/warning flags.
309 Also add -fno-loop-optimize to any powerpc since it's the optimization
310 killing gcc (< 3.4.0).
311 * Doxygen cleanups: move MSG examples, kill the second Doxygen phase
312 needed by MSG examples complications
313 * Borrow configury beautifications from PHP
316 * Bugfix: XBT_LOG_NEW_DEFAULT_CATEGORY now compiles without compiler
317 warning (thanks loris for stumbling into this one).
318 * Bugfix: stop loading private headers (gras_config.h) from the public
322 * Change SIMGRID_INSTALL_PATH to GRAS_ROOT in Makefiles generated for user.
323 * Rename gras_get_my_fqdn to gras_os_myname and implement it in the simulator
324 RL would imply a DNS resolver, which is *hard* to do in a portable way
325 (and therefore delayed).
326 * Implement a real timer mecanism and use it in timing macros. This allows
327 to avoid rounding errors and get a 0.000005 sec precision in timing
328 macros. While I was at it, various cleanups:
329 - allow to declare more than one timed section per file (fix a stupid bug)
330 - move some private declaration to the right place
331 - merge conditional execution and timing macros into emulation module
332 - document the module
333 - make sure the module cleanups its mess on gras_exit
334 * Documentation improvements:
335 - (new) how to compile applications using GRAS
336 - (new) emulation support (timing macros)
338 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 13 May 2005 10:49:31 +0200
340 SimGrid (2.93) unstable; urgency=low
342 Alpha 4 on the path to SimGrid 3 (aka the "neuf-trois" version)
345 - Use Paje properly where used. Still to be sanitized properly.
346 - Portability fix: Add an implementation of the contexts using pthread
350 - Add xbt_procname(): returns the name of the current process.
351 Use it to show the current process's name in all logging.
353 - fix detection of older flex version and the reaction, since we do
354 depend on modern ones (we use lex_destroy)
355 - Better separation of SG and RL in the libs: remove all simulation code
356 from libgras. As a result, this lib is now only 200k when stripped.
357 Some of the xbt modules may also be duplicated (two sets and such) and
358 should be cleaned/killed before SG3.
359 - Insist on using xlC on AIX because of weird problems involving gcc there.
360 - Cleanup the make remote stuff. This is now done by scripts
361 tools/graspe-{master,slave} (GRAS Platform Expender). This is still
362 mainly for our private use, but we're working on changing them to user
365 - Bugfix: flush the socket on close only if there is some *output*.
366 - Bugfix: flush idempotent when there's nothing to send (don't send size=0)
368 - Add MSG_task_get_name. The task names are mainly for debugging purpose,
371 -- SimGrid team <simgrid2-users@listes.ens-lyon.fr> Fri, 4 Mar 2005 14:32:37 -0800
373 SimGrid (2.92) unstable; urgency=low
375 Alpha 3 on the path to SimGrid 3
379 - New! First try of benchmarking macros.
380 - New! First try so that gras_stub_generator generate deployment and
381 remote compilation helpers.
383 - Bugfix: Initialization fix in msg_test.
387 - Bugfix: applied patch to lexer so that it doesn't need a huge heap.
389 - Bugfix: let dicts work with NULL content (_foreach didn't) and cleanups
391 - API Change: gras_os_sleep to take the amount of seconds as a double.
392 Accepting an int was error prone since it was the only location where
393 seconds were coded as such. It leaded to damn rounding errors.
394 - Bugfix: Hard to belive that timers ever worked before this.
396 -- SimGrid team <simgrid2-users@listes.ens-lyon.fr> Wed, 23 Feb 2005 22:09:21 +0100
398 SimGrid (2.91) unstable; urgency=low
400 Alpha 2 on the path to SimGrid 3
404 - Bug fix in the lmm_solver.
406 - New! Interface to Paje (see http://www-id.imag.fr/Logiciels/paje/)
407 through the function MSG_paje_output.
408 - New! Introducing two new functions MSG_process_kill() and MSG_process_killall().
409 - It is possible to bound the rate of a communication in MSG with
410 MSG_task_put_bounded() (was already in the previous version but I had forgotten
411 to write it in the changelog).
412 - Bug fix to let GRAS run on top of MSG until we move it directly on top
417 - Various cleanups to the autotools stuff
418 - Begin to move Gras examples to examples/gras/
419 - Let make distcheck work again (yeah!)
421 - documentation overhauled using doxygen.
422 gtk-doc-tools is dead in SimGrid now.
423 - Automatically extract all existing logging categories, and add the list
424 to the documentation (long standing one, to say the less)
426 - Cleanup the known architecture table. Reorder the entries to group what
427 should be, and use a more consistent naming scheme.
428 (some of the test dataset are still to be regenerated)
429 - New! Allow library to register globals on each process just as userdata
431 This is implemented using a xbt_dict and not a xbt_set, so we loose the
432 lookup time (for now).
433 Use it in msg and trp.
434 This cleans a lot the internals and helps enforcing privacy of the
435 headers between the gras components.
436 - New! Add a timer mechanism, not unlike cron(8) and at(1).
437 - Bugfix: gras_os_time was delirious in RL.
438 - Bugfix: gras_trp_select/RL don't run into the wall when asked to select
440 - Reenable GRAS now that it works.
442 -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 14 Feb 2005 14:02:13 -0800
444 SimGrid (2.90) unstable; urgency=low
446 Alpha 1 on the path to SimGrid 3
448 * It is a long time since the last release of SimGrid. I'm sorry about
449 that but as I had told you, I was rewriting a lot of things. I apologize
450 to those who had been reporting bugs to me and that I had not answered.
451 If your bug is still in the new version, please tell me. Here is a
452 summary of the main changes.
454 * REVOLUTION 1: The SimGrid project has merged with the GRAS project
455 lead by Martin Quinson. As a consequence SimGrid gains a lot in
456 portability, speed, and a lot more but you'll figure it out later.
457 SimGrid now comprises 3 different projects : MSG, GRAS and SMPI.
458 I wanted to release the new MSG as soon as possible and I have
459 broken GRAS, which is the reason why, for now, only MSG is fully
460 functional. A laconic description of these projects is available
461 in the documentation.
463 * REVOLUTION 2: I have removed SG and I am now using a new simulation
464 kernel optimized for our needs (called SURF but only the developers
465 should use it). Hence, MSG is now roughly 30 times faster and I think
466 that by rewriting a little bit MSG, I could event speed it up a little
467 bit more. Beside the gain in speed, it is also much easier to encode a
468 new platform model with SURF than it was with SG. More to come...
470 * REVOLUTION 3: I have tried to change a little as possible the API of
471 MSG but a few things really had to disappear. The main differences
472 with the previous version are :
473 1) no more m_links_t and the corresponding functions. Platforms are
474 directly read from a XML description and cannot be hard-coded
475 anymore. The same format is used for application deployment
476 description. The new format is described in the documentation.
477 Have a look in tools/platform_generation. There is a tiny script
478 that converts from the old platform format to the new one. Concerning
479 the application deployment format, parsing the old one is tricky.
480 I think most of you should however be able to convert your files. If
481 it is really an issue, I can write a C code that does the conversion.
483 2) the toolbox tbx does not exist anymore. We now have a library
484 with much more data-structures but without the hash-tables (we have
485 dictionaries that are much faster).
487 -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 31 Jan 2005 10:45:53 -0800
489 *****************************************************************************
490 * Follows the old GRAS changelog. It does not follow the same syntax, but I *
491 * don't feel like converting the oldies. (Mt) *
492 *****************************************************************************
495 Version 2.90: "the long awaited one"
496 - Finished rewriting and debugging MSG. Rewrote the documentation.
497 - disable GRAS for now since it needs to be ported to the newest SG
500 - Finish the port to windows (using mingw32 for cross-compile)
503 - Main loop and datastructures of SURF. A cpu resource object is
504 functional. Surf can thus be used to create cpu's with variable
505 performance on which you can execute some actions.
507 2004-11-15 Martin Quinson
508 - Port to ARM. Simply added the alignment and size descriptions. Should
509 work, but the ARM machines are so slow that I didn't had the opportunity
510 to 'make check' over there yet.
512 2004-11-15 Arnaud Legrand
513 - Trace manager now written. It uses a heap structure and is therefore
514 expected to be efficient. It may however be speeded up (particularly
515 when many events occur at the same date) by using red and black
516 trees. One day maybe...
517 - Max-min linear system solver written. It uses a sparse matrix
518 structure taking advantage of its expected use. Most operations are
519 O(1) and free/calloc are called as few as possible. The computation of
520 the minimum could however be improved by using a red and black tree
523 2004-11-03 Arnaud Legrand
524 - Rename every gras_* function that was in xbt/ to its xbt_
526 - Add a heap and a doubly-linked list to xbt
527 - Added a dichotomy to the dictionaries. make check works as well before
528 so I assume that the patch is correct. I do not know however if things
529 run effectively faster than before now. :)
531 Inclusion of the SimGrid tree in the GRAS one. The archive is renamed to
532 SimGrid, and the version number is bumped to 2.x
534 2004-10-29 Martin Quinson
535 - Introduction of the remote errors.
536 They are the result of a RMI/RPC on the remote machine.
537 ErrCodes being scalar values, you can't get the host on which those
538 errors did happen. Extending the error mechanism as in Gnome is possible.
539 No idea yet whether it is a good idea.
541 2004-10-28 Martin Quinson
542 - Interface revolution: the Starred Structure Eradication.
543 I used to do typedef struct {} toto_t; and then handle *toto_t.
544 Arnaud (and Oli) didn't like it, and I surrendered. Now, you have:
545 - ???_t is a valid type (builded with typedef)
546 - s_toto_t is a structure (access to fields with .)
547 - s_toto is a structure needing 'struct' keyword to be used
548 - e_toto_t is an enum
549 - toto_t is an 'object' (struct*)
551 typedef struct s_toto {} s_toto_t, *toto_t;
552 typedef enum {} e_toto_t;
553 Moreover, only toto_t (and e_toto_t) are public. The rest (mainly
554 s_toto_t) is private.
556 - While I was at it, all gras_<obj>_free() functions want a gras_<obj>_t*
557 so that it can set the variable to NULL. It was so for dicts and sets,
558 it changed for dynars.
560 - Fix a bunch of memleaks in dict_remove
561 - Fix a bug in sg/server_socket opening: it failed all the time.
563 2004-10-07 Martin Quinson
564 - Speed up dynar lookup operation a bit.
566 gras_dynar_get is dead.
568 Now, you can choose between gras_dynar_get_cpy (the old gras_dynar_get
569 but should be avoided for efficiency reasons) and gras_dynar_get_ptr
570 (which gives you the address of the stored data).
572 gras_dynar_get_as is an helpful macro which allows you to retrieve a
573 copy of the data using an affectation to do the job and not a memcpy.
575 int toto = gras_dynar_get_as(dyn,0,int); rewrites itself to
576 int toto = *(int*)gras_dynar_get_ptr(dyn,0);
578 It does not really speedup the dynar test because they are
579 setting elements all the time (and look them seldom). But the dict does
580 far more lookup than setting.
582 So, this brings the dict_crash test from ~33s to ~25s (200000 elms).
584 2004-10-05 Martin Quinson
585 - Allow to (en/dis)able the cycle detection at run time.
587 Whether we should check for cycle or not is now a property of each
588 datatype. When you think there may be some cycle, use datadesc_cycle_set.
589 datadesc_cycle_unset allow to remove this property when previously set.
591 Note that the cycle detection is off by default since it impacts the
592 performance. Watch the data you feed GRAS with ;)
594 This property is hereditary. Any element embedded in a structure having it
595 set have it set for the time of this data exchange.
597 You should set it both on sender and receiver side. If you don't set it on
598 sender side, it will enter an endless loop. If you forget on receiver
599 side, the cycles won't be recreated after communication.
601 - Header reorganization.
602 Kill gras_private.h, each submodule must load the headers it needs.
604 2004-10-04 Martin Quinson
605 - Interface revolution: do not try to survive to malloc failure.
607 Now, gras_malloc and friends call gras_abort() on failure.
608 As a conclusion, malloc_error is not a valid error anymore, and all
609 functions for which it was the only gras_error_t return value are
610 changed. They now return void, or there result directly.
611 This simplify the API a lot.
613 2004-09-29 Martin Quinson
614 - Re-enable raw sockets.
615 Created by gras_socket_{client,server}_ext;
616 Used with gras_raw_{send,recv}
619 It should allow to kill the last bits of gras first version soon.
621 This is not completely satisfactory yet (duplicate code with
622 chunk_{send,recv}; a bit out of the plugin mechanism), but it should
625 - Simplify transport plugin (internal) interface by not passing any
626 argument to _server and _client, but embedding them in the socket
629 2004-09-28 Martin Quinson
630 - Finish the port to AIX.
631 autoconf was my problem (segfault within the malloc replacement
632 function. No idea why)
634 2004-09-16 Martin Quinson
635 - Fix some size_t madness on 64bit architectures.
637 2004-09-08 Martin Quinson
638 - Reduce the number of system headers loaded, overload some more system
639 calls (such as malloc to cast the result of the system one, and work
641 - Fix and reintroduce the config support
643 2004-09-07 Martin Quinson
644 - Source code reorganization to allow Arnaud to surf all over there.
645 - Allow to document the logging categories.
646 - Remove all uppercase from logging categories and useless cleanup in names.
648 2004-08-18 Martin Quinson
649 Version 0.6.2 (protocol not changed; API changed)
650 - Interface cleanup: gras_msgtype_by_name returns the type (instead of a
651 gras_error_t), and NULL when not found. Functions expecting a msgtype
652 as argument (msg_wait; msg_send) deal with NULL argument by providing a
653 hopefully usefull message.
654 - Portability to prehistoric sparcs again
656 2004-08-17 Martin Quinson
657 Version 0.6.1 (protocol not changed; ABI not changed)
658 - prealloc some buffers to speed things up
660 2004-08-11 Martin Quinson
661 Version 0.6 (protocol not changed; ABI expended)
662 - The parsing macro can deal with the references, provided that you add
663 the relevant annotations (using GRAS_ANNOTE(size,field_name))
665 2004-08-09 Martin Quinson
666 Version 0.5 (protocol not changed; ABI changed)
667 - Allow to off turn the cycle detection code in data exchange at
668 compilation time. It should be at run time, but I'm short of time (and
669 the config stuff is still broken). That way, we keep dict out of the
670 critical path, which is good because the performance is poor:
671 - search not dichotomial yet
672 - dynar give no way to access their content and memcpy everytime
673 - In composed data description (struct, ref and so on), stop foolness of
674 keeping the subtype's ID, but store the type itself. This keeps sets out
675 of the critical path, which is good since they rely on dynar and
676 dictionnaries. The only loose of that is that we cannot detect the
677 redeclaration of a structure/union with another content (but I'm not sure
678 the code detected well this error before anyway). We still can detect
679 the redefinition discrepancy for the other types.
680 - Use a whole bunch of optimisation flags (plus -fno-strict-aliasing since
681 it breaks the code because of type-punning used all over the place).
682 This breaks on all non-gcc architectures (for now).
684 All those changes (plus the buffer of last time) allow me to gain 2 order
685 of magnitude on cruel tests consisting of 800000 array of integers on two
686 level of a hierarchical structure (200 secondes -> 4 secondes)
689 - the selector of reference must now return the type it points to, not
692 2004-08-06 Martin Quinson
693 Version 0.4 (protocol changed; ABI not changed)
694 - Allow to pass --gras-log argument to processes in simulation mode. Really.
695 - New debugging level: trace (under debug) to see effect of GRAS_IN/OUT
696 - Implement a buffer transport, and use it by default (it relies on tcp in
697 real life and on sg in simulation).
698 That's a bit hackish since I had a new field to the structure to store
699 its data without interfering with the subtype ones. Inheritance
700 is tricky in C. And that's a kind of reverse inheritance with one class
701 derivating two classes. Or maybe a game with java interfaces. Anyway,
702 that's damn hard in C (at least).
703 Moreover, I got tired while trying to ensure plugin separation and
704 genericity in SG mode. MSG wants me to do weird things, so let's go for
705 cruel hacks (temporarily of course ;).
706 See comment in transport_private.h:71
707 - do not include all the _interface headers in private but in the files
708 which really need them (to cut the compilation time when they are
711 2004-07-26 Martin Quinson
712 Version 0.3 (protocol not changed; ABI changed)
713 - Major overhault of the datadesc interface to simplify it:
714 - shorted the function names:
715 s/gras_datadesc_declare_struct/gras_datadesc_struct/ and so on
716 - add a trivial way to push/pop integers into the cbps without malloc.
717 This allows to make really generic sub_type description, which simply
718 pop their size of the stack.
719 - add a function gras_datadesc_ref_pop_arr() which does what users want
720 most of the time: Declare a dynamic array (which pops its size of the
721 stack) and declare a reference to it. Poor name, but anyway.
722 - kill the post-send callback, add a post-receive one
724 2004-07-23 Martin Quinson
725 Version 0.2 (protocol changed; ABI changed)
726 - add some testing for cpbs in the test cases, and fix some more bugs.
727 This invalidate again the little64 data file, since I cannot regenerate
729 - remove an awfull optimization in the logging stuff, allowing me to:
730 - understand it again
731 - learn gcc how to check that the argument match the provided format
732 - fix all errors revealed by gcc after that
733 - internal keys of dict are not \0 terminated. Deal with it properly in
734 loggings instead of segfaulting when the user want to see the logs :-/
736 2004-07-22 Martin Quinson
737 - Fix some stupid bug preventing cbps (callback postit) from working
739 2004-07-21 Martin Quinson
740 - Some documentation cleanups
741 - remove the useless last argument of msgtype_declare
742 - rename the Virtu functions to fit into the 'os' namespace
743 - move headers src/include -> src/include/gras/ and stop fooling with
744 gras -> . symbolic link
745 - make distcheck is now successful
747 2004-07-19 Martin Quinson
749 - Build shared library also
750 - Install html doc to the right location
751 - stop removing maintainer files in make clean
752 - build tests only on make check
754 2004-07-13 Martin Quinson
756 - No major issue in previous version => change versionning schema
757 - Re-enable little64 convertion test now that Abdou kindly regenerated the
758 corresponding dataset.
760 2004-07-11 Martin Quinson
762 - Get it working with any kind of structure (we can compute the padding
763 bytes remotely for all the architectures I have access to)
764 - Implement the structure parsing macro (still not quite robust/complete)
765 - Improvement to the remote testing toysuite
767 2004-07-10 Martin Quinson
769 - get ride of a bunch of deprecated macros
770 - actually run the test for two-compliment, not only compile it :-/
771 - test whether the structures get packed (and bail out if yes. Damn.
772 Alignment is a serious matter)
773 - test whether the structures get compacted (but respecting the alignment
774 constraints of each types)
775 - test whether the array fields of structures can straddle alignment boundaries
777 - Damnit, double are bigger than float (typo in creation of 'double' datadesc)
778 (took me 2 hours to find that bug, looking at the wrong place)
779 - Add gras_datadesc_declare_{union,struct}_close(). They must be used
780 before sending/receiving and are used to compute the offsets of fields
781 - Given that padding size depend even on compiler options, keep track of
782 alignment and aligned_size only for the current architecture. Not a big
783 deal since we send structure fields one after the other (seems
785 - Add the datastructure used for IEEE paper by the PBIO guys to the test
786 program, let it work on linux/gcc/little32. portability todo.
788 2004-07-08 Martin Quinson
789 - import and improve remote compilation support from FAST
790 - make sure make check works on half a dozen of machines out there
792 2004-07-07 Martin Quinson
793 Let's say it's version 0.0.3 ;)
794 - Implement conversions (yuhu!)
795 - Let it work on solaris (beside conversion, of course)
796 - Stupid me, using rand() to generate the conversion datatests in not wise.
798 2004-07-06 Martin Quinson
799 - Let make dist work, since I'm gonna need it to compile on remote hosts
800 - Let Tests/datadesc_usage write the architecture on which the file was
801 generated as first byte.
802 - Add PowerPC (being also IRIX64), SPARC (also power4) and ALPHA
803 architecture descriptions.
804 - Add datadesc_usage.{i386,ppc,sparc} files being the result of execution
805 on those architectures.
806 - Optimization: send/recv array of scalar in one shoot
808 2004-07-05 Martin Quinson
809 - YEAH! GRAS/SG and GRAS/RL are both able to run the ping example !
811 - Plug a whole bunch of memleaks
812 - each process now have to call gras_{init,exit}. One day, their log
813 settings will be separated
814 - Continue the code factorisation between SG, RL and common in Transport.
816 2004-07-04 Martin Quinson
818 - Redistribution between SG and RL.
819 We wanna have to accept in SG, so move accepted related parts of RL in
820 the common part. (more precisely, the dynar of all known sockets is no
821 more a static in transport.c, but part of the process_data)
823 [gras_stub_generator]
824 - Bug fix: Do call gras_process_init from gras_init (wasnt called in RL).
826 2004-07-03 Martin Quinson
827 - Create a new log channel tbx containing dict, set, log, dynar (to shut
828 them all up in one shot)
830 - Fix the ugly case of reference to dynamic array.
831 - New (semi-public) function gras_datadesc_size to allow the messaging
832 layer to malloc the needed space for the buffer.
834 - gras_socket_close now expect the socket to close (and not its address to
835 put NULL in it after it). This is because the socket passed to handlers
836 is one of their argument (=> not writable).
838 - propagate the interface cleanup from last week in datadesc, ie remove a
839 superfluous level of indirection. User pass adress of variable
840 containing data (both when sending and receiving), and not of a variable
841 being a pointer to the data. Let's say that I like it better ;)
842 The price for that is constructs like "int msg=*(int*)payload" in
843 handlers, but it's a fine price, IMHO.
845 - Let it work in RL (yuhu)
847 2004-06-21 Martin Quinson
849 - porting SG plugin and SG select to new standards (works almost).
850 - plug memleaks and fix bugs around.
853 - cleanup the prototype of data recv and force users to specify when they
854 want to handle references to objects. Test case working even for cycles.
855 - plug memleaks. Valgrind is perfectly ok with this.
857 2004-06-12 Martin Quinson
859 - cleanup the separation between plugin and main code in plugin creation
861 2004-06-11 Martin Quinson
863 - Reput hook for raw sockets, needed for BW experiments
864 - kill a few lines of dead code
865 [Data description] Interface cleanup
866 - gras_datadesc_by_name returns the searched type or NULL.
867 That way, no variable is needed to use a type desc once, which makes
869 - gras_datadesc_declare_[struct|union]_append_name is removed. The last
870 two parameters were strings (field name, type name), leading to
872 [Dicos] Interface cleanup
873 - gras_dico_retrieve -> gras_dico_get ; gras_dico_insert -> gras_dico_set
874 This is consistant with the dynar API.
876 2004-04-21 Martin Quinson
878 - Porting to new standards.
881 There is no bag anymore, no need to take extra provision to mask the
882 pointers behind "ID".
883 Better splitup of functions between files create/exchange/convert.
884 This is still a bit artificial since convert and receive are so
885 interleaved, but anyway.
887 - add a queued message list to procdata (the ones not matching criteria
889 - factorize some more code between SG and RL wrt procdata
891 - use gras_exit in example to track memleaks
892 - get rid of gs_example now that GS is properly integrated into gras
893 - update run_test to integrate the lastest tests (datadesc)
895 - rename WARNINGn macros to WARNn since it prooved error-prone
897 2004-04-19 Martin Quinson
899 - register init/exit functions within gras module mechanism
900 - send/receive function.
901 Convertion is not implemented, but short-cutted if not needed.
902 struct/array elements are sent one by one (instead of block-wise), but
903 nobody really cares (yet). Get a prototype before optimizing.
904 - tests (using a file socket) for DD send/receive on:
905 - base types: int, float
906 - array: fixed size, string (ie ref to dynamic string)
907 - structure: homogeneous, heterogeneous
908 - chained list, graph with cycle
909 Believe it or not, valgrind is not too unhappy with the results. The
910 cycle happily segfaults, but the others are ok. And I'm sick of pointers
914 - Bugfix when using a filename explicitely (instead of '-')
916 2004-04-09 Martin Quinson
918 - factorize more code between RL and SG in socket creation
919 - Complete the implementation and tests of:
921 o file (only in RL, and mainly for debugging)
923 I lost 3 days to design a portable address resolver, and then decided
924 that the prototype mainly have to run on my box.
925 Addressing portability too early may be like optimizing too early :-/
927 - use gras_init in the Tests instead of the crappy parse_log_opt
928 (the latter function is removed)
929 [Conditional execution]
930 - New functions: gras_if_RL/gras_if_SG (basic support for this)
931 [Code reorganisation]
932 - Get rid of libgrasutils.a since it makes more trouble than it solves.
933 Build examples against the RL library, since there is no way to disable
934 its creation for now.