X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/99542e8a8213501e7639ec432a47222f0672f9c2..b7d15f971798dc36cae930c545b760a8cfec8f78:/ChangeLog diff --git a/ChangeLog b/ChangeLog index 3099b55a19..9073179553 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,36 +1,188 @@ -SimGrid (3.8) NOT RELEASED; urgency=low +SimGrid (3.9) NOT RELEASED; urgency=low + + The Grasgory release: GRAS is really dead now. + + 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. + + 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 + hacking on SimGrid itself. The user documentation (and in + particular, the beginner documentation) is still in a sorry state. + + SMPI: + * Now works on Windows too! + * Much more extensive test suite, from MPICH + +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. + + MSG: + * New function: MSG_process_get_number() + * Old function documented: MSG_config() + + 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 + 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 + anything new + + 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. - The "SimGrid makes psssshiiiit and jumps into the cloud" release. - - CMAKE: - * Remove option custom_flags. Now use environment variables CFLAGS - and LDFLAGS. - 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 + points in the library helps us). + * Make it impossible to link against the wrong version of the lib + * 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: - * New type of typed tasks SD_TASK_COMP_PAR_AMDAHL that represents a + * 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. - - Before calling SD_task_schedulel or SD_task_schedulev, the - SD_task_distribute_comp_amdahl function has to be called with the - desired number of workstations. The filling of computation_amount and - communication_amount (actually empty) structures is then done - seamlessly. + 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 + 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) - -- $date Da SimGrid team + 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) + + -- Thu Oct 25 17:30:06 CEST 2012 Da SimGrid team -SimGrid (3.7.1) NOT RELEASED; urgency=low +SimGrid (3.7.1) stable; urgency=low MSG: * Restore the prototype of MSG_process_create_with_environment() to @@ -40,12 +192,26 @@ SimGrid (3.7.1) NOT RELEASED; urgency=low SURF: * Fix weird behaviors when dealing with parallel tasks. + WINDOWS: + * Simgrid is now built as a dll. + * Simgrid-java now works on Windows. + * Simgrid-Java is now included into Windows package. + + MacOS: + * First pre-build package for MacOSX. + Build System: * Fix compilation when using MSG_USE_DEPRECATED. - * Fix compilation on Macs. + * Fix some compilation issues on Macs and Windows. + * Reduce the number of failing tests on exotic systems, like Debian/Hurd. * Environment variables CFLAGS and LDFLAGS are now honored by cmake. - -- $date Da SimGrid team + We discovered that the Lua console is broken, but we are missing the + manpower to fix it right now. The problem existed in 3.7 too, so we + are not blocking the release for that. Sorry if you depended on this + feature, any help would be really welcome. + + -- Thu Jun 7 2012 Da SimGrid team SimGrid (3.7) stable; urgency=low @@ -160,7 +326,7 @@ 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: @@ -2307,7 +2473,7 @@ 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