- Version 0.7 (protocol not changed; API changed)
+SimGrid (2.95) unstable; urgency=low
+
+ MSG
+ * Implement MSG_get_msgload [MQ]
+
+ SURF
+ * Bugfix: Allow absolute paths for platform description files [MQ]
+
+ GRAS
+ * <project>.Makefile.local (generated from gras_stub_generator) |MQ]:
+ - Do clean .o files
+ - Compile with -g
+ * bugfix in automatic type parsing: differentiate the types "char[22]"
+ and "unsigned char[22]". "short" and "long" modifiers were also ignored;
+ other modifier (such as reference level) are still ignored. [MQ]
+ * Real (even if simplistic) implementation of gras_os_myname() on RL [MQ]
+
+ --
+
+SimGrid (2.94) unstable; urgency=low
+
+ The first release candidate for SimGrid 3 !
+
+ >>>Arnaud<<<
+ (documentation)
+ * Update the main page and the FAQ. Adding references to gforge.
+
+ (gras)
+ * Add a gras_os_getpid function.
+
+ (msg)
+ * Add MSG_task_get_compute_duration() and MSG_task_get_data_size()
+ * Extend the logs so that they also print PID, hostname, date, ... if
+ available.
+ * Convert the MSG example to the use of xbt_logs instead of PRINT_MESSAGE,
+ and kill the old version which were in testsuite/
+ * Rewrite tools/MSG_visualization/colorize.pl for using with logs instead
+ of PRINT_MESSAGE
+
+ (xbt)
+ * Add xbt_os_time(). As the rest of xbt/portability, this is not public
+ for users. Instead, each programming environment (GRAS, MSG,...) use it
+ when needed to provide such a feature to users.
+ Don't shortcut the mecanism or you will also shortcut the virtualization
+ you need on the simulator.
+
+ >>>Martin<<<
+ (infrastructure)
+ * Cleanups in configury with regard to compile optimization/warning flags.
+ Also add -fno-loop-optimize to any powerpc since it's the optimization
+ killing gcc (< 3.4.0).
+ * Doxygen cleanups: move MSG examples, kill the second Doxygen phase
+ needed by MSG examples complications
+ * Borrow configury beautifications from PHP
+
+ (xbt)
+ * Bugfix: XBT_LOG_NEW_DEFAULT_CATEGORY now compiles without compiler
+ warning (thanks loris for stumbling into this one).
+ * Bugfix: stop loading private headers (gras_config.h) from the public
+ ones (xbt/swag.h).
+
+ (gras)
+ * Change SIMGRID_INSTALL_PATH to GRAS_ROOT in Makefiles generated for user.
+ * Rename gras_get_my_fqdn to gras_os_myname and implement it in the simulator
+ RL would imply a DNS resolver, which is *hard* to do in a portable way
+ (and therefore delayed).
+ * Implement a real timer mecanism and use it in timing macros. This allows
+ to avoid rounding errors and get a 0.000005 sec precision in timing
+ macros. While I was at it, various cleanups:
+ - allow to declare more than one timed section per file (fix a stupid bug)
+ - move some private declaration to the right place
+ - merge conditional execution and timing macros into emulation module
+ - document the module
+ - make sure the module cleanups its mess on gras_exit
+ * Documentation improvements:
+ - (new) how to compile applications using GRAS
+ - (new) emulation support (timing macros)
+
+ -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 13 May 2005 10:49:31 +0200
+
+SimGrid (2.93) unstable; urgency=low
+
+ Alpha 4 on the path to SimGrid 3 (aka the "neuf-trois" version)
+
+ [Arnaud]
+ - Use Paje properly where used. Still to be sanitized properly.
+ - Portability fix: Add an implementation of the contexts using pthread
+
+ [Martin]
+ (misc)
+ - Add xbt_procname(): returns the name of the current process.
+ Use it to show the current process's name in all logging.
+ (infrastructure)
+ - fix detection of older flex version and the reaction, since we do
+ depend on modern ones (we use lex_destroy)
+ - Better separation of SG and RL in the libs: remove all simulation code
+ from libgras. As a result, this lib is now only 200k when stripped.
+ Some of the xbt modules may also be duplicated (two sets and such) and
+ should be cleaned/killed before SG3.
+ - Insist on using xlC on AIX because of weird problems involving gcc there.
+ - Cleanup the make remote stuff. This is now done by scripts
+ tools/graspe-{master,slave} (GRAS Platform Expender). This is still
+ mainly for our private use, but we're working on changing them to user
+ tools, too.
+ (gras)
+ - Bugfix: flush the socket on close only if there is some *output*.
+ - Bugfix: flush idempotent when there's nothing to send (don't send size=0)
+ (msg)
+ - Add MSG_task_get_name. The task names are mainly for debugging purpose,
+ but anyway.
+
+ -- SimGrid team <simgrid2-users@listes.ens-lyon.fr> Fri, 4 Mar 2005 14:32:37 -0800
+
+SimGrid (2.92) unstable; urgency=low
+
+ Alpha 3 on the path to SimGrid 3
+
+ [Arnaud]
+ (gras)
+ - New! First try of benchmarking macros.
+ - New! First try so that gras_stub_generator generate deployment and
+ remote compilation helpers.
+ (msg)
+ - Bugfix: Initialization fix in msg_test.
+
+ [Martin]
+ (surf)
+ - Bugfix: applied patch to lexer so that it doesn't need a huge heap.
+ (xbt)
+ - Bugfix: let dicts work with NULL content (_foreach didn't) and cleanups
+ (gras)
+ - API Change: gras_os_sleep to take the amount of seconds as a double.
+ Accepting an int was error prone since it was the only location where
+ seconds were coded as such. It leaded to damn rounding errors.
+ - Bugfix: Hard to belive that timers ever worked before this.
+
+ -- SimGrid team <simgrid2-users@listes.ens-lyon.fr> Wed, 23 Feb 2005 22:09:21 +0100
+
+SimGrid (2.91) unstable; urgency=low
+
+ Alpha 2 on the path to SimGrid 3
+
+ [Arnaud]
+ (surf)
+ - Bug fix in the lmm_solver.
+ (msg)
+ - New! Interface to Paje (see http://www-id.imag.fr/Logiciels/paje/)
+ through the function MSG_paje_output.
+ - New! Introducing two new functions MSG_process_kill() and MSG_process_killall().
+ - It is possible to bound the rate of a communication in MSG with
+ MSG_task_put_bounded() (was already in the previous version but I had forgotten
+ to write it in the changelog).
+ - Bug fix to let GRAS run on top of MSG until we move it directly on top
+ of the SURF.
+
+ [Martin]
+ (infrastructure)
+ - Various cleanups to the autotools stuff
+ - Begin to move Gras examples to examples/gras/
+ - Let make distcheck work again (yeah!)
+ (documentation)
+ - documentation overhauled using doxygen.
+ gtk-doc-tools is dead in SimGrid now.
+ - Automatically extract all existing logging categories, and add the list
+ to the documentation (long standing one, to say the less)
+ (gras)
+ - Cleanup the known architecture table. Reorder the entries to group what
+ should be, and use a more consistent naming scheme.
+ (some of the test dataset are still to be regenerated)
+ - New! Allow library to register globals on each process just as userdata
+ does.
+ This is implemented using a xbt_dict and not a xbt_set, so we loose the
+ lookup time (for now).
+ Use it in msg and trp.
+ This cleans a lot the internals and helps enforcing privacy of the
+ headers between the gras components.
+ - New! Add a timer mechanism, not unlike cron(8) and at(1).
+ - Bugfix: gras_os_time was delirious in RL.
+ - Bugfix: gras_trp_select/RL don't run into the wall when asked to select
+ onto 0 sockets.
+ - Reenable GRAS now that it works.
+
+ -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 14 Feb 2005 14:02:13 -0800
+
+SimGrid (2.90) unstable; urgency=low
+
+ Alpha 1 on the path to SimGrid 3
+
+ * It is a long time since the last release of SimGrid. I'm sorry about
+ that but as I had told you, I was rewriting a lot of things. I apologize
+ to those who had been reporting bugs to me and that I had not answered.
+ If your bug is still in the new version, please tell me. Here is a
+ summary of the main changes.
+
+ * REVOLUTION 1: The SimGrid project has merged with the GRAS project
+ lead by Martin Quinson. As a consequence SimGrid gains a lot in
+ portability, speed, and a lot more but you'll figure it out later.
+ SimGrid now comprises 3 different projects : MSG, GRAS and SMPI.
+ I wanted to release the new MSG as soon as possible and I have
+ broken GRAS, which is the reason why, for now, only MSG is fully
+ functional. A laconic description of these projects is available
+ in the documentation.
+
+ * REVOLUTION 2: I have removed SG and I am now using a new simulation
+ kernel optimized for our needs (called SURF but only the developers
+ should use it). Hence, MSG is now roughly 30 times faster and I think
+ that by rewriting a little bit MSG, I could event speed it up a little
+ bit more. Beside the gain in speed, it is also much easier to encode a
+ new platform model with SURF than it was with SG. More to come...
+
+ * REVOLUTION 3: I have tried to change a little as possible the API of
+ MSG but a few things really had to disappear. The main differences
+ with the previous version are :
+ 1) no more m_links_t and the corresponding functions. Platforms are
+ directly read from a XML description and cannot be hard-coded
+ anymore. The same format is used for application deployment
+ description. The new format is described in the documentation.
+ Have a look in tools/platform_generation. There is a tiny script
+ that converts from the old platform format to the new one. Concerning
+ the application deployment format, parsing the old one is tricky.
+ I think most of you should however be able to convert your files. If
+ it is really an issue, I can write a C code that does the conversion.
+ Let me know.
+ 2) the toolbox tbx does not exist anymore. We now have a library
+ with much more data-structures but without the hash-tables (we have
+ dictionaries that are much faster).
+
+ -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 31 Jan 2005 10:45:53 -0800
+
+*****************************************************************************
+* Follows the old GRAS changelog. It does not follow the same syntax, but I *
+* don't feel like converting the oldies. (Mt) *
+*****************************************************************************
+
+2005-01-31 Arnaud
+ Version 2.90: "the long awaited one"
+ - Finished rewriting and debugging MSG. Rewrote the documentation.
+ - disable GRAS for now since it needs to be ported to the newest SG
+
+2004-12-16 Martin
+ - Finish the port to windows (using mingw32 for cross-compile)
+
+2004-11-28 Arnaud
+ - Main loop and datastructures of SURF. A cpu resource object is
+ functional. Surf can thus be used to create cpu's with variable
+ performance on which you can execute some actions.
+
+2004-11-15 Martin Quinson
+ - Port to ARM. Simply added the alignment and size descriptions. Should
+ work, but the ARM machines are so slow that I didn't had the opportunity
+ to 'make check' over there yet.
+
+2004-11-15 Arnaud Legrand
+ - Trace manager now written. It uses a heap structure and is therefore
+ expected to be efficient. It may however be speeded up (particularly
+ when many events occur at the same date) by using red and black
+ trees. One day maybe...
+ - Max-min linear system solver written. It uses a sparse matrix
+ structure taking advantage of its expected use. Most operations are
+ O(1) and free/calloc are called as few as possible. The computation of
+ the minimum could however be improved by using a red and black tree
+ (again ! ;).
+
+2004-11-03 Arnaud Legrand
+ - Rename every gras_* function that was in xbt/ to its xbt_
+ counterpart.
+ - Add a heap and a doubly-linked list to xbt
+ - Added a dichotomy to the dictionaries. make check works as well before
+ so I assume that the patch is correct. I do not know however if things
+ run effectively faster than before now. :)
+
+ Inclusion of the SimGrid tree in the GRAS one. The archive is renamed to
+ SimGrid, and the version number is bumped to 2.x
+
+2004-10-29 Martin Quinson
+ - Introduction of the remote errors.
+ They are the result of a RMI/RPC on the remote machine.
+ ErrCodes being scalar values, you can't get the host on which those
+ errors did happen. Extending the error mechanism as in Gnome is possible.
+ No idea yet whether it is a good idea.
+
+2004-10-28 Martin Quinson
+ - Interface revolution: the Starred Structure Eradication.
+ I used to do typedef struct {} toto_t; and then handle *toto_t.
+ Arnaud (and Oli) didn't like it, and I surrendered. Now, you have:
+ - ???_t is a valid type (builded with typedef)
+ - s_toto_t is a structure (access to fields with .)
+ - s_toto is a structure needing 'struct' keyword to be used
+ - e_toto_t is an enum
+ - toto_t is an 'object' (struct*)
+ Exemple:
+ typedef struct s_toto {} s_toto_t, *toto_t;
+ typedef enum {} e_toto_t;
+ Moreover, only toto_t (and e_toto_t) are public. The rest (mainly
+ s_toto_t) is private.
+
+ - While I was at it, all gras_<obj>_free() functions want a gras_<obj>_t*
+ so that it can set the variable to NULL. It was so for dicts and sets,
+ it changed for dynars.
+
+ - Fix a bunch of memleaks in dict_remove
+ - Fix a bug in sg/server_socket opening: it failed all the time.
+
+2004-10-07 Martin Quinson
+ - Speed up dynar lookup operation a bit.
+
+ gras_dynar_get is dead.
+
+ Now, you can choose between gras_dynar_get_cpy (the old gras_dynar_get
+ but should be avoided for efficiency reasons) and gras_dynar_get_ptr
+ (which gives you the address of the stored data).
+
+ gras_dynar_get_as is an helpful macro which allows you to retrieve a
+ copy of the data using an affectation to do the job and not a memcpy.
+
+ int toto = gras_dynar_get_as(dyn,0,int); rewrites itself to
+ int toto = *(int*)gras_dynar_get_ptr(dyn,0);
+
+ It does not really speedup the dynar test because they are
+ setting elements all the time (and look them seldom). But the dict does
+ far more lookup than setting.
+
+ So, this brings the dict_crash test from ~33s to ~25s (200000 elms).
+
+2004-10-05 Martin Quinson
+ - Allow to (en/dis)able the cycle detection at run time.
+
+ Whether we should check for cycle or not is now a property of each
+ datatype. When you think there may be some cycle, use datadesc_cycle_set.
+ datadesc_cycle_unset allow to remove this property when previously set.
+
+ Note that the cycle detection is off by default since it impacts the
+ performance. Watch the data you feed GRAS with ;)
+
+ This property is hereditary. Any element embedded in a structure having it
+ set have it set for the time of this data exchange.
+
+ You should set it both on sender and receiver side. If you don't set it on
+ sender side, it will enter an endless loop. If you forget on receiver
+ side, the cycles won't be recreated after communication.
+
+ - Header reorganization.
+ Kill gras_private.h, each submodule must load the headers it needs.
+
+2004-10-04 Martin Quinson
+ - Interface revolution: do not try to survive to malloc failure.
+
+ Now, gras_malloc and friends call gras_abort() on failure.
+ As a conclusion, malloc_error is not a valid error anymore, and all
+ functions for which it was the only gras_error_t return value are
+ changed. They now return void, or there result directly.
+ This simplify the API a lot.
+
+2004-09-29 Martin Quinson
+ - Re-enable raw sockets.
+ Created by gras_socket_{client,server}_ext;
+ Used with gras_raw_{send,recv}
+ No select possible.
+
+ It should allow to kill the last bits of gras first version soon.
+
+ This is not completely satisfactory yet (duplicate code with
+ chunk_{send,recv}; a bit out of the plugin mechanism), but it should
+ work.
+
+ - Simplify transport plugin (internal) interface by not passing any
+ argument to _server and _client, but embedding them in the socket
+ struct directly.
+
+2004-09-28 Martin Quinson
+ - Finish the port to AIX.
+ autoconf was my problem (segfault within the malloc replacement
+ function. No idea why)
+
+2004-09-16 Martin Quinson
+ - Fix some size_t madness on 64bit architectures.
+
2004-09-08 Martin Quinson
- Reduce the number of system headers loaded, overload some more system
calls (such as malloc to cast the result of the system one, and work
2004-09-07 Martin Quinson
- Source code reorganization to allow Arnaud to surf all over there.
- - Allow to document the logging categories
+ - Allow to document the logging categories.
- Remove all uppercase from logging categories and useless cleanup in names.
2004-08-18 Martin Quinson
Version 0.5 (protocol not changed; ABI changed)
- Allow to off turn the cycle detection code in data exchange at
compilation time. It should be at run time, but I'm short of time (and
- the config stuff is still broken). That way, we keep dict of of the
+ the config stuff is still broken). That way, we keep dict out of the
critical path, which is good because the performance is poor:
- search not dichotomial yet
- dynar give no way to access their content and memcpy everytime
of the critical path, which is good since they rely on dynar and
dictionnaries. The only loose of that is that we cannot detect the
redeclaration of a structure/union with another content (but I'm not sure
- the code detected this error well before anyway). We still can detect
+ the code detected well this error before anyway). We still can detect
the redefinition discrepancy for the other types.
- Use a whole bunch of optimisation flags (plus -fno-strict-aliasing since
it breaks the code because of type-punning used all over the place).
- Improvement to the remote testing toysuite
2004-07-10 Martin Quinson
- [autoconf mecanism]
+ [autoconf mechanism]
- get ride of a bunch of deprecated macros
- actually run the test for two-compliment, not only compile it :-/
- test whether the structures get packed (and bail out if yes. Damn.
2004-04-19 Martin Quinson
[Data description]
- - register init/exit functions within gras module mecanism
+ - register init/exit functions within gras module mechanism
- send/receive function.
Convertion is not implemented, but short-cutted if not needed.
struct/array elements are sent one by one (instead of block-wise), but
