X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/b4cdae298b5a8f436f8c3ddf4c761529603df71a..53f4f08bea7b5d0aba645179de3ca7ddaceccae7:/ChangeLog diff --git a/ChangeLog b/ChangeLog index 1cf92b9d80..5a8d6d402e 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,6 +1,11 @@ -SimGrid (3.3.4) unstable; urgency=low +SimGrid (3.3.5-svn) unstable; urgency=low - The "Desktop Grid needs love too" release. + -- Da SimGrid team + + +SimGrid (3.3.4) stable; urgency=low + + The "Desktop Grid needs love too" release (also called Xmas release). Models improvements: * Major speedup in the maxmin system solving by using lazy evaluation @@ -43,23 +48,32 @@ SimGrid (3.3.4) unstable; urgency=low This new model is more realistic than the previous one, so you should consider redoing your old experiments with this model. Sorry for the inconvenience. + + Build System: + * Introduce the supernovae compilation mode + When compiled that way, the whole SimGrid (or almost) is put in a + single compilation unit and compiled in one shoot. + This is to help gcc which has difficulties to inline stuff from one + file into another. + The speedup seem to be above 15%, althrough more tests are needed on + amd64 to confirm that gain. MSG: * Port of MSG's mailbox on top of SIMIX network - The put/get mechanism was greatly simplified thanks to the new SIMIX module. + The put/get mechanism was greatly simplified on the way. SIMIX: - * New SIMIX network module - It provides a rendez-vous point (aka mailbox) based send/recv API to perform - synchronous communication. + * New SIMIX network module. Provides: + - Mailbox: rendez-vous mecanism to find with who you want to speak + - Synchronous send/recv: easier and hopefully faster since the + logic is handled in the maestro process directly now + - Asynchronous send/recv: you dreamt of it? It's here now + Too bad that nobody cared enough to propagate the change to MSG. + * Add semaphores as SIMIX synchronization mechanism. SimDag: - * new function SD_task_dump() for debuging display * new function SD_daxload(char*) to load a DAX file (see http://vtcpc.isi.edu/pegasus/index.php/WorkflowGenerator) - * SD_task_dependency_exists() can now cope with having one of its - arguments NULL. If so, it tests whether the other argument has any - dependency. * Introduce typed tasks. Specify its kind and cost at creation. At scheduling, just give where it should be placed, and the cost for each involved resource is automatically computed. @@ -67,19 +81,72 @@ SimGrid (3.3.4) unstable; urgency=low - SD_task_create_comm_e2e() for end-to-end communication - SD_task_create_comp_seq() for sequential computation Use SD_task_schedulev() / SD_task_schedulel() to schedule them. + * new function SD_task_dump() for debuging display + * new function SD_task_dotty(task,FILE*) writing to file the info + about the task in dotty format + * SD_task_dependency_exists() can now cope with having one of its + arguments NULL. If so, it tests whether the other argument has any + dependency. + * Add getters on list of preceding/following tasks: + SD_task_get_parents(task) and SD_task_get_children(task) + * Add getters on amount of workstations and list: + SD_task_get_workstation_count(t) and SD_task_get_workstation_list(t) + * Add getter on task kind: SD_task_get_kind(task) + * Update the start_time and finish_time of tasks on completion/failure + * Bugfix: Remove task from state swags when destroyed + + GRAS: + * New function: void gras_cpu_burn(double flops) -- a simple CPU burner + + XBT: + * New function: xbt_dynar_dopar(dynar,fun) to map a function over the + dynar with one separate thread per value of the dynar. + * Change the prototype of xbt_thread_create(), sorry. + Added a boolean parameter indicating whether we want to join this + thread (used in SG only for now) + * Implement xbt_thread_join and xbt_thread_yield in SG also. Bug fixes: * GTNetS wrappers should now be usable again (and betterly tested too) * Fix a major regression from 3.2 where the timeout provided to MSG_task_put_with_timeout() was used as absolute time before which the comm should be done. + * Start to fix the tag. + - Internal links should be good now (beside of the loopback, which + use the private link instead) + - paths to the external world is still rather broken + - the tag is just broken. Actually that's brain-dead. + We need sth like + to make it less stupid + ** Check your platform with teshsuite/simdag/platforms/flatifier ** * Fix a source-level compatibility glitch from 3.2: after defining MSG_USE_DEPRECATED, you can use the old name MSG_task_put_with_time_out() for MSG_task_put_with_timeout() * Allow to compile from the SVN with automake 1.11 * Fix some problems when using the "start_time" tag in deployment XMLs. + * Fix #8569: XBT/synchro.h has redundant declarations + * Fix #8563: MSG return values and exceptions + Introduce a MSG_TIMEOUT_FAILURE return code and use it consistently. + * Integrate patch #8636: Obey DESTDIR when installing documentation. + Thanks to Robson Peixoto. + * Fix a vicious bug in dictionaries inducing that some elements were + not freed on xbt_dict_free() + + Portability report of this version: + * Main portability targets: + - linux (ubuntu (804/810/910) /debian (4/5/testing) /fedora (core11)) + on (amd64/i386/ia64) + - mac leopard on i386 + Known problems: http://cdash.inria.fr/CDash/index.php?project=Simgrid + but nothing critical. + * Other platforms: windows, AIX and others were not tested for this release + + Timing report of this version: + * Lazy evaluation brings arbitrary speedup (ie, speedup depending on + scenario parameters). From 8h to a few seconds in desktop grid settings. + * Supernovae brings about 25% speedup on i386. - -- Da SimGrid team + -- Da SimGrid team Thu, 24 Dec 2009 19:07:39 +0100 SimGrid (3.3.3) stable; urgency=low