+SimGrid (3.0.2) unstable; urgency=low
+
+ XBT:
+ * New module: cunit (my jUnit implementation in ansi C) [MQ]
+ - Test units are placed directly into the library code, they get extracted
+ automatically and placed into the src/testall binary.
+ - Convert most of the XBT tests to this system.
+ * New functions: xbt_dynar_getfirst_as() and xbt_dynar_getlast_as() [MQ]
+ * XML parsing: rewrote parts of flexml to enable multiple xml parsers to
+ live in the same C code. This required to change a little bit the API
+ of surfxml parsing but shouldn't be an issue for end-users. [AL]
+ * New module: sparse graph structure with basic algorithms. [AL]
+
+ SURF:
+ * complete rewrote of the KCCFLN05 workstation model. It is now an
+ extension of the classical CLM03 model that gracefully handles
+ failures. This is now the standard model for MSG and GRAS. [AL]
+
+ MSG,GRAS:
+ * Bug fix: Processes were started in reverse order, wrt deployment file.
+ WARNING: if your code relies on this bug, please fix it. [AL]
+
+ GRAS:
+ * New! a real RPC mecanism, as it ought to be since too long. [MQ]
+ Exception occuring on server-side are propagated back to client (!).
+
+ API CHANGE: the callback changed their prototype. Change:
+ int my_handler(gras_socket_t expeditor, void *payload_data) {
+ to:
+ int my_handler(gras_msg_cb_ctx_t ctx , void *payload_data) {
+ gras_socket_t expeditor=gras_msg_cb_ctx_from(ctx);
+ and you're set.
+
+ AMOK:
+ * Bandwidth module:
+ - Do not force experiment sizes to be expressed in kb, or it becomes
+ impossible to mesure the latency this way (needs one byte-long tests)
+ WARNING: this changes the amok_bw_* function semantic.
+
+ --
+
+SimGrid (3.0.1) unstable; urgency=low
+
+ XBT:
+ * Unfortunately, I had missed 5 misnamed functions:
+ xbt_fifo_item_t xbt_fifo_newitem(void);
+ void xbt_fifo_freeitem(xbt_fifo_item_t);
+ xbt_fifo_item_t xbt_fifo_getFirstItem(xbt_fifo_t l);
+ xbt_fifo_item_t xbt_fifo_getNextItem(xbt_fifo_item_t i);
+ xbt_fifo_item_t xbt_fifo_getPrevItem(xbt_fifo_item_t i);
+ They're now deprecated. Please use their new versions:
+ xbt_fifo_item_t xbt_fifo_new_item(void);
+ void xbt_fifo_free_item(xbt_fifo_item_t);
+ xbt_fifo_item_t xbt_fifo_get_first_item(xbt_fifo_t l);
+ xbt_fifo_item_t xbt_fifo_get_next_item(xbt_fifo_item_t i);
+ xbt_fifo_item_t xbt_fifo_get_prev_item(xbt_fifo_item_t i);
+ [AL]
+ * Bugfix: really disconnect fifo items which are remove_item()ed [AL]
+ * Documentation: xbt_log module unmercifully reworked [MQ]
+ * Bugfix: there was a problem with the ending of contexts with
+ the pthread backend. It caused some weird deadlock or behavior
+ depending on the pthread implementation. [AL]
+ * Bugfix: get the exceptions raised in the simulator repport where
+ and why they come from when they are not catched in time [AL, MQ]
+
+ SURF:
+ * Bugfix: Do repport the error when two non-connected hosts try to
+ exchange data (Thanks to Flavien for stumbling into this one) [AL]
+
+ SURF:
+ * Add additionnal checkings on communications. Assert that two
+ communicating hosts are connected by a set of links... [AL]
+
+ MSG:
+ * Add additionnal checkings on channel values in communication [AL]
+ * New: MSG_task_get_source to see on which host a task was generated [HC]
+ * New: int MSG_task_probe_from_host(int channel, m_host_t host): returns
+ the number of tasks waiting to be received on channel and sent
+ by host. [AL]
+ * New: MSG_error_t MSG_task_get_from_host(m_task_t * task, int channel, m_host_t host);
+ waits for the first task coming from a given host.. [AL]
+
+ GRAS new functionnalities: [MQ]
+ * Enhance the parsing macro to allow the size of multidimentional objects
+ to be given thru annotations.
+ * New example (and documentation): Matrix Multiplication a la RPC
+ (as when I was young!) and fix a bunch of bugs found on the way.
+
+ GRAS performance improvements: [MQ]
+ [DataDesc]
+ * Reduce the amount of cbps creation/destruction by making it static to
+ datadesc_send/recv() and using a (newly created) cbps_reset (based on
+ dynar_reset ())
+ [Virtu]
+ * Change libdata to a set so that we can search for stuff by ID (and thus
+ reduce the insane amount of dict lookups)
+
+ [Transport]
+ * Actually implement gras_datadesc_copy() so that we don't have to mimick
+ RL communication on top of SG since it's so uneffective.
+ It may also be used for inter-thread communication in RL, one day.
+ * Use gras_datadesc_copy() to exchange messages on top of SG
+ Allows to:
+ - improve message exchange performance on top of SG
+ - deprecate transport_plugin_sg.c:gras_trp_sg_chunk_send() & recv()
+ * Don't exchange on the network the size of the used part of buffer,
+ instead, specify the possible buffer size to read().
+ Advantages:
+ - reduces the amount of read/write calls (one pair per exchange)
+ - reduces the amount of exchanged data (the size)
+ - allows to retrieve all arrived data on receiver side, if we don't need
+ it right now (subsequent read will peek the buffer)
+ - allows the receiver to proceed with the begining of the stream before
+ everything is arrived
+ - make it possible to build an iov transport (using readv/writev)
+ Extra difficulty:
+ - take care of the data with non-stable storage (like stacked data),
+ and bufferize them.
+ * If possible, TCP send uses vector I/O (when writev() is here)
+ - Don't use it for receive since we send data sizes and data on the
+ same stream, so we wouldn't be able to chain large amount of chunks
+ before having to flush the stuff to read the size.
+ * Rework the transport plugin mecanism to simplify it and reduce the
+ amount of pointer dereferencement when searching for the right function
+ to use.
+
+ * I guess that now, we do almost as few system calls as possible while
+ doing as few data copy as possible.
+
+ To improve it further, we could try to send all the sizes first and then
+ all the data (to use iov on receiving size), but it's only a partial
+ solution: when you have 2 dimensional data, the sizes of the second
+ dimension is data of the first dimension, so you need 3 streams.
+
+ I'm not sure the potential performance gains justify the coding burden.
+
+ -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 21 Oct 2005 14:42:20 +0200
+
+SimGrid (3.00) stable; urgency=low
+
+ SURF:
+ * New! Give the possibility to hijack the surf parser and thus bypass
+ MSG_create_environment and MSG_launch_application. Have a look at
+ examples/msg/msg_test_surfxml_bypassed.c to see how it can be done.
+
+ -- Arnaud Legrand <simgrid-devel@lists.gforge.inria.fr> Sat, 20 Aug 2005 23:25:25 -0700
+
+SimGrid (2.96) unstable; urgency=low
+
+ AKA SimGrid 3 rc 2.
+
+ XBT:
+ * New! Exception handling with setjmp or such (code from OSSP ex) [MQ]
+ This deprecates the xbt_error_t mecanisms.
+ It modifies (simplifies) all XBT and GRAS API.
+ MSG API keeps unchanged (exceptions raised by XBT are catched from
+ within MSG and masked with existing error handling facilities)
+
+ SURF:
+ * New! Add a FATPIPE model. [AL]
+ * New! Add a parallel task model. [AL]
+ * New! Add automatically a loopback interface (in the default
+ network model) if none was precised.
+
+ MSG
+ * Bugfix: MSG_process_resume now works with the current running process.
+ [AL]
+ * New! Add MSG_parallel_task_create and MSG_parallel_task_execute. [AL]
+ * Modification of MSG_task_get_compute_duration. Once a task has been
+ processed, the value returned by this function is now equal to 0. [AL]
+ * New! Add double MSG_task_get_remaining_computation(m_task_t task) and
+ MSG_error_t MSG_task_cancel(m_task_t task). Add a state
+ (MSG_TASK_CANCELLED) to MSG_error_t corresponding to the cancelation
+ of a m_task. For now, MSG_task_cancel only works with computation
+ tasks. [AL]
+ * New! Add double MSG_get_host_speed(m_host_t h) that returns the speed
+ of the processor (in Mflop/s) regardless of the current load on the
+ machine. [AL]
+ * API Change: use proper naming convention for MSG_getClock and
+ MSG_process_isSuspended: MSG_get_clock and MSG_process_is_suspended.
+ [AL]
+ * New! Add void MSG_task_set_priority(m_task_t task, double priority).
+ This function changes the priority of a computation task. This priority
+ doesn't affect the transfer rate. A priority of 2 will make a task
+ receive two times more cpu power than the other ones. This function
+ has been added to suit the needs of Nguyen The Loc and hasn't been that
+ much tested yet. So if it fails, please report it and send me your code.
+ [AL]
+ * API Change: removed all functions and types that were marked "deprecated"
+ since many months. Renamed MSG_global_init_args to MSG_global_init.
+
+ -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Mon, 8 Aug 2005 17:58:47 -0700
+
+SimGrid (2.95) unstable; urgency=low
+
+ XBT
+ * Steal some nice code to GNU pth to fix context detection and usage [AL]
+ * Cleanup in the xbt_config API; add configuration callbacks. [MQ]
+ * Cleanup in the initialization API: the unused "defaultlog" is dead. [MQ]
+
+ SURF
+ * Bugfix: Allow absolute paths for platform description files [MQ]
+ * Bugfix: do free the variables after use. Leads to drastic performance
+ improvement [AL]
+ * Implement max_duration (ie, timeouts) on resources [AL]
+
+ MSG
+ * Implement MSG_config to configure MSG at runtime. xbt_cfg test on a real
+ case ;) [MQ]
+ * Implement MSG_channel_select_from() to help GRAS now that SURF provide
+ the needed support (timeouts) [AL]
+
+ GRAS (new features)
+ * Implement measurement sockets. You can now get the bandwidth between two
+ hosts thanks to AMOK (see below). [MQ]
+ * gras_datadesc_dynar() builds a dynar type descriptor, allowing to send
+ dynar over the network (yeah) [MQ]
+ * Real (even if simplistic) implementation of gras_os_myname() on RL [MQ]
+ * simple/static token-ring example. [Alexandre Colucci and MQ]
+ * Use MSG_channel_select_from() and remove the *slow* hack we had to put
+ in place before [MQ]
+
+ GRAS (bug fixes)
+ * Differentiate the types "char[22]" and "unsigned char[22]" in automatic
+ type parsing. "short" and "long" modifiers were also ignored; other
+ modifier (such as reference level) are still ignored. [MQ]
+ * Embeed the buffer size within the buffer itself on SG. [MQ]
+ That way, send() are atomic and cannot get intermixed anymore (at least
+ the ones which are less than 100k; bigger messages still have the issue)
+ * Array size pushed by the field, not by the field type (or each
+ and every long int will push stuff to the cbps) [MQ]
+ * use select() to sleep since it allows to portably sleep less than one
+ second. [MQ]
+
+ GRAS (minor cleanups)
+ * <project>.Makefile.local (generated from gras_stub_generator) |MQ]:
+ - Do clean .o files
+ - Compile with -g
+ * Type Callbacks now receive the gras_datadesc_type_t they work on as argument.
+ * type category 'ignored' killed as it was never used and were difficult
+ to transmit.
+ * whether a type can cycle or not is now a flag, leaving room for more
+ flags (as "ignored", if we feel the need one day ;)
+ * Rename raw sockets to measurement sockets since "raw" has another
+ meaning in networking community.
+
+ AMOK
+ * Advanced Metacomputing Overlay Kit introduction. It is based over GRAS
+ and offers features not belonging to GRAS but that most applications
+ need. One day, it may be a set of plugins loadable at runtime.
+ * New module: bandwidth
+ bandwidth measurement between arbitrary nodes running this module. [MQ]
+
+ -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Thu, 30 Jun 2005 16:29:20 -0700
+
+SimGrid (2.94) unstable; urgency=low
+
+ The first beta release of 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
(surf)
- Bug fix in the lmm_solver.
(msg)
- - Interface to Paje (see http://www-id.imag.fr/Logiciels/paje/) through the function
- MSG_paje_output.
- - Introducing two new functions MSG_process_kill() and MSG_process_killall().
+ - 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).
- Begin to move Gras examples to examples/gras/
- Let make distcheck work again (yeah!)
(documentation)
- - documentation overhault using doxygen.
+ - 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 consistant naming scheme.
+ should be, and use a more consistent naming scheme.
(some of the test dataset are still to be regenerated)
- - Allow library to register globals on each process just as userdata does.
+ - 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.
- - Reenable GRAS
+ - 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
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
- functionnal. A laconic description of these projects is available
+ 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
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 hower be able to convert your files. If
+ 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
*****************************************************************************
* Follows the old GRAS changelog. It does not follow the same syntax, but I *
-* dont feel like converting the oldies. (Mt) *
+* don't feel like converting the oldies. (Mt) *
*****************************************************************************
2005-01-31 Arnaud
2004-11-28 Arnaud
- Main loop and datastructures of SURF. A cpu resource object is
- functionnal. Surf can thus be used to create cpu's with variable
+ 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' overthere yet.
+ to 'make check' over there yet.
2004-11-15 Arnaud Legrand
- Trace manager now written. It uses a heap structure and is therefore
- 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 dictionnaries. make check works as well before
+ - 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. :)
- 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 mecanism as in Gnome is possible.
+ 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
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 embeeded in a structure having it
+ 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
It should allow to kill the last bits of gras first version soon.
- This is not completely satisfactory yet (dupplicate code with
- chunk_{send,recv}; a bit out of the plugin mecanism), but it should
+ 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 embeeding them in the socket
+ argument to _server and _client, but embedding them in the socket
struct directly.
2004-09-28 Martin Quinson
- 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
