X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/0c13871d73e933c1847faf8debea7b7745a3ff44..772d63cca583f5d16096fa9f487b4ab07d9af8f0:/ChangeLog diff --git a/ChangeLog b/ChangeLog index 65d338f499..2ff6295222 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,7 +1,118 @@ -SimGrid (3.9) NOT RELEASED; urgency=low +SimGrid (3.11) NOT RELEASED; urgency=low + + TENTATIVE RELEASE GOALS for 3.11: + * Consider the removal of Supernovae mode if no user has manifested since the + release of version 3.10. + * Switch to tesh.pl, and kill the now unused parts of xbt that seem fragile + * Switch to surf++, and reintegrate the hypervisor branch on top of it + + -- $date Da SimGrid team + +SimGrid (3.10) stable; urgency=low + + The Clean Diaper Release, a.k.a. SimGrid is leak-free. + + Java: + * Reintegrate Java to the main archive as desynchronizing these + package is not acceptable anymore (Java is now considered stable) + * Add explicit synchronization facilities through semaphores + * Bug fix: Task.setDataSize() only changed the C world, not the value + cached in the Java world + + MSG: + * Dramatically change the way files are handled. API and internals changed, but + this part of MSG was not considered as production grade either. + * Add explicit synchronization facilities through semaphores + * Add a new function MSG_host_get_process_list() + * Preliminary DVFS support (see examples/msg/energy/ for details) + + SMPI: + * SMPI is now included directly in the libsimgrid as the windows + linker doesn't force us on splitting it anymore. + * Improvements of the SMPI replay tool: + - Most of the collective communications are now rooted in the same process as + in the original application. + - Traces now rely on the same MPI data type as the application (MPI_BYTE was + used until now). Multiple data types can now be used in a trace. + - The replay tool now supports traces produce either by TAU or a modified + version of MPE. + - Bug Fix: the compute part of the reduce action is now taken into account. + - Gatherv collective is now supported + - SimGrid (SMPI for now) can generate replay traces as well. Option -trace-ti + of smpirun outputs time independent traces for the current run. One file + is created per process. If too many processes are simulated, this behavior + can be changed to one file for all processes by using the + tracing/smpi/format/ti_one_file flag + * smpirun generates the host file if needed (with given host count and platform) + * Integration of more than 100 STAR-MPI, MPICH, OpenMPI collective algorithms + - allows to select one in particular with --cfg=smpi/coll_name:algorithm + - allows to use the decision logic of OpenMPI(1.7) or MPICH(3.0.4) by setting + --cfg=smpi/coll_selector:(mpich/ompi) + * Support for new functions : MPI_Issend, MPI_Ssend, Commutative operations in + Reduce + * Add a --cfg:tracing/smpi/internals option, to trace internal communications + happening inside a collective SMPI call. + * Fix the behavior of complex data types handling. + * Make MPI_Wtime another synchronization point to take computations into account. + * Replace MPICH-1 test suite by the one from MPICH 3.0.4. Can be built using + enable_smpi_MPICH3_testsuite flag in cmake. Run with ctest. + * Add all missing Fortran bindings, SMPI should work with Fortran 90 + (no privatization of global variables yet) + * Preliminary DVFS support (see examples/smpi/energy/ for details) + + Model-Checking; + * Verification of liveness properties is now available for SMPI applications + (in addition to MSG applications) + * Bugged examples using SMPI in examples/smpi/mc/ + * Add --cfg=model-check/visited option. Allows the verification of infinite + programs. Detection of loops in the execution thanks to the system state + comparison and reduction of the state space to explore. Can be combined with + DPOR for safety properties. + + SimDag: + * Allow to change SimGrid configuration (see --help) within the code + thanks to SD_config() as it can be done in MSG. + * Add a new function SD_task_set_amount() upon user request. + + PLATFORM: + * Handle units for values (10ms, 10kiloflops, 10Bps, 1GB, ...) + * Remove rule based routing (no more PCRE dependency) + * Add a limiter_link option to cluster tag, to specify a maximum reachable + bandwidth in fullduplex mode when it is less than twice the nominal bandwidth. + * Add a loopback_bw and loopback_lat options to cluster tag. + * Fix the peer tag that could not be mixed with other AS within a Vivaldi + routing. Now peers are encapsulated in an AS and have their own private + router but this is transparent. + + XBT: + * Our own implementation of getline is renamed xbt_getline, and gets + used even if the OS provide a getline(). This should reduce the + configuration complexity by using the same code on all platforms. + * New type: xbt_cfg_elm_boolean. + * Allow to use yes/no for boolean configuration options in the command line. + * Allow to disable SimGrid cleanups at exit from command line option. + There are situations where one may want a simulation to end with an exit. + Unfortunately, calling exit may cause SimGrid to segfault, which is quite + annoying when scripting around the simulator. Adding a + --cfg=clean_atexit:no allows to circumvent this issue. + + Build System: + * Lots of memory leaks were corrected in this release. + There is no known memory leaks anymore, in all of our 600+ tests. + * New command line option --version, to get SimGrid version information. + Packagers may want to add extra words to SIMGRID_VERSION_EXTRA defined in + CMakeLists.txt. + * Supernovae builds are deprecated, and expected to be removed in the next + version of SimGrid. + + -- Sun Nov 17 00:26:44 CET 2013 Da SimGrid team + +SimGrid (3.9) stable; urgency=low The Grasgory release: GRAS is really dead now. + * Complete overhaul of the internal host structures scheme. + GRAS: * If you use GRAS, you should stay at SimGrid 3.5 (at most) since it was considered as experimental and badly maintained since then. @@ -15,8 +126,8 @@ SimGrid (3.9) NOT RELEASED; urgency=low Documentation: * Major overhaul. Merge our documentation again as time proved that - spliting it was really not helping our users. - * Further improve the developer documentation to help newcommers + splitting it was really not helping our users. + * Further improve the developer documentation to help newcomers hacking on SimGrid itself. The user documentation (and in particular, the beginner documentation) is still in a sorry state. @@ -24,23 +135,32 @@ SimGrid (3.9) NOT RELEASED; urgency=low * Now works on Windows too! * Much more extensive test suite, from MPICH -SIMDAG: - * Bug fix: let task be scheduled when the last dependency to be solved is a - control dependency + SIMDAG: + * Add a new loader (SD_PTG_dotload) that creates a parallel task graph + (i.e., a DAG whose nodes are parallel tasks) from a dot file. Creates a + dynar of SD_TASK_COMP_PAR_AMDAHL and SD_TASK_COMM_MXN_1D_BLOCK tasks. + * Bug fix: let task be scheduled when the last dependency to be solved is + a control dependency. + * Remove SD_load_environment_script function. + Use the C sg_platf function if you want to declare a platform + programmatically. MSG: * New function: MSG_process_get_number() * Old function documented: MSG_config() + * Remove MSG_load_platform_script function + Use the C sg_platf function if you want to declare a platform + programmatically. SURF: * Change the default value of the TCP_gamma constant (maximal size of TCP congestion window) to a more realistic 4MiB value. If you notice changes in your simulation results, you can fall back to the previous 20k tiny window by adding --cfg=network/TCP_gamma:20000 on command line. - * Bug fix about the way periodic availability/state traces are handled. - * Bug fix: use default values at start when first event in availability/state + * (Hopefully) fix a bug wrt periodic availability and state traces + * Bug fix: use default values at start when first event in availability/state trace is not at time 0. - + PLATFORM: * remove the "new_" part of function name sg_platf_new_trace_connect (resulting in sg_platf_trace_connect), since it does not create @@ -48,12 +168,20 @@ SIMDAG: XBT: * Kill synchronized dynars, and xbt_dynar_dopar(). We cannot think of a - usecase where it's really mandatory, and maintaining it was a pain in - our codebase. + use case where it's really mandatory, and maintaining it was a pain in + our code base. * New: xbt_fifo_search(), search an item with a user-provided comparison function instead of dumb pointer comparison. - -- $date Da SimGrid team + LUA: + * Fix the lua deployment: + Use `simgrid.init_application()` before deployment instead of + `simgrid.msg_register_application()` after. + + TRACING: + * Transfer the tracing files into the corresponding modules. + + -- Tue Feb 5 11:31:43 CET 2013 Da SimGrid team SimGrid (3.8.1) stable; urgency=low @@ -353,7 +481,7 @@ SimGrid (3.7) stable; urgency=low Turn model-checking OFF if simulation performance matters to you. Not enabling it at runtime is not enough, disable it in cmake. - -- Tue May 15 11:30:19 UTC 2012 Da SimGrid team + -- Tue May 15 11:30:19 UTC 2012 Da SimGrid team SimGrid (3.6.2) stable; urgency=low