X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/a641213ee55ee3dc481255ea8a1443894f1906d2..786246a1d66b281f419c62f21bdd49c11d9dec99:/ChangeLog diff --git a/ChangeLog b/ChangeLog index 5a06786b7e..233699a4a5 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,52 +1,163 @@ -SimGrid (3.8) NOT RELEASED; urgency=low +SimGrid (3.9) NOT RELEASED; urgency=low - The "SimGrid makes psssshiiiit and jumps into the cloud" release. + The Grasgory release: GRAS is really dead now. - Cmake: - * Remove option custom_flags. Now use environment variables CFLAGS - and LDFLAGS. - * Enable tracing by default. This modules rocks you should use it. - * Use default cmake things to detect lua instead of home grown ones. - - Documentation: - * Split the doc into a user guide and a reference guide. + 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. + * Keeping it was thus a trap to our potential users, that could take + it instead of MSG or SMPI by mistake despite is pity state. + * GRAS seems to have very few users (if any), and no one volunteered + to maintain it further. It also induces a lot of XBT code (for + portability sake), that must be maintained too. + * For all these reasons, we killed GRAS. If someone wants to revive it + in the future, don't cry, our git history still remembers of GRAS. + + SMPI: + * Now works on Windows too! + * Much more extensive test suite, from MPICH + + MSG: + * New function: MSG_process_get_number() + + 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. + + 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. + * New: xbt_fifo_search(), search an item with a user-provided + comparison function instead of dumb pointer comparison. + + -- $date Da SimGrid team + +SimGrid (3.8.1) stable; urgency=low + + The "we are told that some people want to also *install* the simgrid + framework" release. + + * Add missing file "tesh.1" to the archive. + + -- Sat Oct 27 16:12:11 CEST 2012 Da SimGrid team + +SimGrid (3.8) stable; urgency=low + + The Psssshiiiit release: SimGrid jumps into the Cloud. MSG: * Add an experimental interface to manipulate VMs. They are mainly process groups with very few intrinsic semantic, but they should allow you to build the semantic you want easily. * New function: MSG_host_set_property_value() + * New function: MSG_process_on_exit(). To clean memory in all cases. + * Bug fixes that made the host (and link) failures unusable. + * Add a way to auto-restart process when the host in which they are + executing comes back (ON_FAILURE="RESTART" on deployment file, + MSG_process_auto_restart_set). + * Use the "msg_" prefix for all datatypes (instead of m_, msg_ and MSG_), + please stop using the old ones, they are DEPRECATED. + * Deprecate functions MSG_global_init() / MSG_global_init_args() - Please use MSG_init() instead. (reducing the amount of entry + Please use MSG_init() instead. (reducing the amount of entry points in the library helps us). * Make it impossible to link against the wrong version of the lib - * Bug fixes that made the host (and link) failures unusable. + * Deprecate MSG_clean(). No need to call it anymore. + * Function MSG_get_host_number() is not deprecated anymore. + + Documentation: + * Split the doc into a user guide and a reference guide. + * Start a developper guide to help people hacking on SimGrid. + + Cmake: + * Enable tracing by default. This modules rocks you should use it. + * Remove option custom_flags. Now use environment variables CFLAGS + and LDFLAGS. + * Use default cmake things to detect lua instead of home grown ones. + * New option "enable_mallocators" to disable mallocators, for debugging + purpose ("on" by default). Simix: * Bug fixes around the resource failures: don't let the processes - survive the host they are running onto + survive the host they are running onto. + * Add an interface to auto-restart processes when the host in which they are + executing comes back. + * Ensures that SIMIX_clean is called automatically. It's not part of + the public interface anymore (bindings should be updated). SimDag: + * Bug fix for when SD_Simulate is called with a positive value: be careful + when comparing doubles. Sometimes they are different for non significant + digits only. * New types of typed tasks. SD_TASK_COMP_PAR_AMDAHL represents a parallel task whose initial work is distributed among host according to the Amdahl's law. Such tasks are created with a parameter alpha - that corresponds to the non-parallelizable part of the computation. - SD_TASK_COMM_PAR_MXN_1D_BLOCK represents a complex data redistribution - between two sets of workstations assuming a 1D block distribution (each - workstation owns a similar share of data) on both sides. + that corresponds to the non-parallelizable part of the computation. + SD_TASK_COMM_PAR_MXN_1D_BLOCK represents a complex data redistribution + between two sets of workstations assuming a 1D block distribution (each + workstation owns a similar share of data) on both sides. - These tasks can be scheduled with SD_task_schedulel or SD_task_schedulev. - Data redistribution will be automatically scheduled once parent and child + These tasks can be scheduled with SD_task_schedulel or SD_task_schedulev. + Data redistribution will be automatically scheduled once parent and child are both scheduled. The filling of computation_amount and communication_amount structures is now done seamlessly thanks to the chosen assumptions. * New function SD_workstation_dump to display various information + * New function SD_task_set_rate to throttle the bandwidth allowed to be used + by a SD_TASK_COMM_E2E typed task. This rate depends on both the nominal + bandwidth on the route onto which the task is scheduled and the amount of + data to transfer. + To divide the nominal bandwidth by 2, the rate then has to be : + rate = bandwidth/(2*amount) + * Compute tasks that have failed can now be rescheduled and executed again + (from their beginning) + * Increasing source code coverage (src/simdag is now covered at 95.8% + on average) + + SMPI: + * Re-implement time-independent trace replay using SMPI (at the + smpi_smp_* level) instead of MSG. This should replace + examples/msg/actions/actions.c + * Implement support of MPI Datatypes (vectors, hvectors, indexed, + hindexed and structs) + * Implement the exchange of non-contiguous data. + [Khalid Hasanov & Jean-Noel Quintin] Thanks for the patch, guys. + * Correct behavior of smpi/sender_gap and set its default value to 0 + * Add option to asynchronously send small messages to allow better + simulation of pt2pt communications. --cfg=smpi/async_small_threshold:value + specifies the size in bytes under which messages will be asynchronously sent. + * Add support of MPI_Iprobe, MPI_Probe, MPI_Testall, MPI_Wtick functions + * SMPI now handles more MPI specific values in input. Closes [#14389] and [#14388] + + SimGrid: + * New C interface to define a platform: XML is now optional. + For more info, please check include/simgrid/platf.h. + * New interface to define random platforms from the C: + For more info, please check include/simgrid/platf_generator.h and + examples/msg/masterslave/masterslave_platfgen.c + * Export a sg_cmdline dynar containing all the arguments we got from + the command line. + + TRACE: + * Two new tracing options for adding comments to trace file so you + can track your experiments (see --help-tracing for details). + * New option to generate a impoverished trace file (--cfg=tracing/basic:1) + * Adding the SimGrid version that generated the trace file as a comment. + * Instrumenting other MSG functions (MSG_task_isend_with_matching and MSG_task_dsend) + * Fix to avoid key clashes on Paje links + * Other minor fixes related to the Paje specification XBT: * Functions xbt_dict_hash() and xbt_dict_hash_ext() are made public, and renamed to xbt_str_hash() and xbt_str_hash_ext(). + * New function: xbt_os_timer_resume() to restart a timer w/o resetting it. + * Greatly improve the robustness of mmalloc to user errors (such as + using an area after freeing it, or freeing it twice) - -- $date Da SimGrid team + -- Thu Oct 25 17:30:06 CEST 2012 Da SimGrid team SimGrid (3.7.1) stable; urgency=low @@ -192,7 +303,7 @@ SimGrid (3.7) stable; urgency=low - Add new runtime parameters --help-logs and --help-log-categories to display informations about supported logging parameters and categories. - - Old deprecated parameters --{gras,surf,msg.simix,xbt}-log=... + - Old deprecated parameters --{gras,surf,msg,simix,xbt}-log=... don't exists anymore. * Mallocators: allow value NULL for the reset function. * Dicts: @@ -2339,7 +2450,7 @@ SimGrid (2.90) unstable; urgency=low [Tests] - use gras_exit in example to track memleaks - get rid of gs_example now that GS is properly integrated into gras - - update run_test to integrate the lastest tests (datadesc) + - update run_test to integrate the latest tests (datadesc) [Logging] - rename WARNINGn macros to WARNn since it prooved error-prone