X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/1a163867e88aadbc98da14c686a06ad2920e825d..ea24b6c8ef304061262c504fa8130a4864f4983a:/ChangeLog diff --git a/ChangeLog b/ChangeLog index e89865232f..605242b95a 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,13 +1,57 @@ -SimGrid (3.32.1) not released yet (target december 22) +SimGrid (3.34.1) not released (Target: fall 2023) + +S4U: + - New class ActivitySet to ease wait_any()/test_any()/wait_all() + - Deprecate {Comm,Io,Exec}::{wait_any,wait_all,test_any} and friends + - New function NetZone::add_route(host1, host2, links) when you don't need gateways + Also add a variant with s4u::Link, when you don't want to specify the directions + on symmetric routes. + - Introduce a Mailbox::get_async() with no payload parameter. You can use the new + Comm::get_payload() once the communication is over to retrieve the payload. + - Implement recursive mutexes. Simply pass true to the constructor to get one. + +SMPI: + - New SMPI_app_instance_join(): wait for the completion of a started MPI instance + - MPI_UNIVERSE_SIZE now initialized to the total amount of hosts in the platform + +sthread: + - Implement recursive pthreads. + - Many bug fixes. + +Python: + - Make the host_load plugin available from Python. See examples/python/plugin-host-load + - Mailbox::get_async() does not return a pair anymore. Use comm.get_payload() instead. + - Comm::waitall/waitany/testany() are gone. Please use ActivitySet() instead. + - Comm::waitallfor() is gone too. Its semantic was unclear on timeout anyway. + - Io::waitany() and waitanyfor() are gone. Please use ActivitySet() instead. + +C API: + - Introduce sg_activity_set_t and deprecate wait_all/wait_any/test_any for + Exec, Io and Comm. + +Plugins: + - Revamp the battery plugin: rewrite completely the API, for a better usability. + The examples were updated accordingly. + - Revamp of the Photovoltaic plugin: now called SolarPanel and complete rewrite of the API + - Add chiller plugin: enable the management of chillers consuming electrical energy + to compensate heat generated by hosts. + +---------------------------------------------------------------------------- + +SimGrid (3.34) June 26. 2023 + + Save the planet, skip a release: 3.33 was due 6 months ago, so skip directly to 3.34. General: + - SimGrid now requires a compiler with C++17 support for public headers too. + Sibling projects should upgrade their FindSimGrid.cmake - Remove the MSG API: its EOL was scheduled for 2020. - Remove the Java bindings: they were limited to the MSG interface. - On Windows, you now need to install WSL2 as the native builds are now disabled. It was not really working anyway. - Support for 32bits architecture is not tested anymore on our CI infrastructure. It may break in the future, but we think that nobody's using SimGrid on 32 bits. - - Remove the surf module. It was replaced by the kernel/models module, and that + - Remove the surf module. It was replaced by the kernel/models module, and that refactoring took almost 10 years to properly complete. S4U: @@ -15,26 +59,32 @@ S4U: Comm::set_payload_size() to change the size of the simulated data. - New function: Engine::flatify_platform(), to get a fully detailed vision of the configured platform. + - New Task abstraction: They are designed to represent dataflows, i.e, graphs of repeatable Activities. + See the examples under examples/cpp/task-* and the associated documentation. - Full simDAG integration: Activity::start() actually starts only when all dependencies - are fullfiled. If it cannot be started right away, it will start as soon as it becomes + are fulfilled. If it cannot be started right away, it will start as soon as it becomes possible. - Allow to set a concurrency limit on disks and hosts, as it was already the case for links. - Rename Link::get_usage() to Link::get_load() for consistency with Host:: - Every signal now come with a static version that is invoked for every object of that class, - and an instance version that is invoked for this specific object only. For example, + and an instance version that is invoked for this specific object only. For example, s4u::Actor::on_suspend_cb() adds a callback that is invoked for the suspend of any actor while s4u::Actor::on_this_suspend_cb() adds a callback for this specific actor only. - Activity::on_suspended_cb() is renamed to Activity::on_suspend_cb(), and fired right before the suspend. - Activity::on_resumed_cb() is renamed to Activity::on_resume_cb(), and fired right before the resume. + - Resource::on_state_change_cb() is renamed to Resource::on_onoff_cb() to distinguish from the + Activity::on_state_change_cb() that is related to the activity state machine, not on/off. + - Activity signals (veto, suspend, resume, completion) are now specialized by activity class. + That is, callbacks registered in Exec::on_suspend_cb will not be fired for Comms nor Ios. New S4U plugins: - - Operation: They are designed to represent workflows, i.e, graphs of repeatable Activities. - See the examples under examples/cpp/operation-* and the documentation in the Plugins page. - Battery: Enable the management of batteries on hosts. See the examples under examples/cpp/battery-* and the documentation in the Plugins page. + - Photovoltaic: Enable the management of photovoltaic panels on hosts. + See the examples under examples/cpp/photovoltaic-* and the documentation in the Plugins page. Kernel: - - optimize an internal datastructure (use a set instead of a list for ongoing activities), + - optimize an internal data structure (use a set instead of a list for ongoing activities), leading to a potentially big performance gain, in particular with many detached comms. MPI: @@ -44,7 +94,7 @@ MPI: Models: - Write the section of the manual about models, at least. - - WiFi: the total capacity of a link depends on the amout of flows on that link. + - WiFi: the total capacity of a link depends on the amount of flows on that link. - Use the nonlinear callback feature of LMM to reflect this. - Calibration values can be changed to match different MCS configurations - See the example teshsuite/models/wifi_usage_decay/wifi_usage_decay.cpp @@ -67,19 +117,22 @@ sthread: It requires code annotation, as shown in examples/sthread/stdobject/stdobject.cpp Model checking: + - Stateless model-checking is now usable on any system, including Mac OSX and ARM processors. + - The stateless aspects of the MC are now enabled by default in all SimGrid builds. + Liveness and stateful aspects are still controlled by the enabling_model-checking + configuration option. + - Introducing ODPOR and SDPOR reduction strategies + - Introducing guiding heuristics, trying to find bugs faster than DFS in reduced state space. - Synchronize the MBI tests with upstream. - - Show the full actor bactraces when replaying a MC trace (with model-check/replay) + - Show the full actor backtraces when replaying a MC trace (with model-check/replay) and the status of all actors on deadlocks in MC mode. - - The safety/stateless aspects of the MC are now enabled by default in all simgrid builds. - Liveness and stateful aspects are still controled by the enabling_model-checking - configuration option. - - Stateless model-checking is now usable on any system, including Mac OSX and ARM processors. XBT: - simgrid::xbt::cmdline and simgrid::xbt::binary_name are gone. Please use simgrid::s4u::Engine::get_cmdline() instead. Documentation: + - New tutorial on simulating DAGs. - New section in the user guide on the provided performance models. - New section presenting some technical good practices for (potential) contributors. - Add a section on errors and exceptions to the API documentation. @@ -234,7 +287,7 @@ MSG: New plugin: the Chaos Monkey (killing actors at any time) - Along with the new simgrid-monkey script, it tests whether your simulation resists resource failures at any possible timestamp in your simulation. - - It is mostly intended to test the simgrid core in extreme conditions, + - It is mostly intended to test the SimGrid core in extreme conditions, but some users may find it interesting too. Models: @@ -672,7 +725,7 @@ The Release release (the French lockdown was eased today). Important user-visible changes: - SimGrid now requires a compiler with C++14 support. - Sibling projects should upgrade their FindSimgrid.cmake + Sibling projects should upgrade their FindSimGrid.cmake - Surf precision default value is now 1e-9, instead of 1e-5. This was changed as several users had difficulties to understand issues when using high bandwidth or small latency events. The new value was already the default for SMPI and @@ -998,7 +1051,7 @@ General: - Network model 'NS3' was renamed into 'ns-3'. Python: - - Simgrid can now hopefully be installed with pip. + - SimGrid can now hopefully be installed with pip. S4U: - wait_any can now be used for asynchronous executions too. @@ -2046,7 +2099,7 @@ SimGrid (3.12) stable; urgency=low - InfiniBand network model added: Based on the works of Jerome Vienne http://mescal.imag.fr/membres/jean-marc.vincent/index.html/PhD/Vienne.pdf - When smpi/display_timing is set, also display global simulation time and application times - - Have smpirun, smpicc and friends display the simgrid git hash version on --git-version + - Have smpirun, smpicc and friends display the SimGrid git hash version on --git-version * Collective communications - SMP-aware algorithms are now dynamically handled. An internal communicator is created for each node, and an external one to handle communications between "leaders" of each node - MVAPICH2 (1.9) collective algorithms selector: normal and SMP algorithms are handled, and selection logic is based on the one used on TACC's Stampede cluster (https://www.tacc.utexas.edu/stampede/). @@ -2787,8 +2840,8 @@ SimGrid (3.6.2) stable; urgency=low Portability * Create an installer for windows with nsis (amd64 and win32) - - Add an hello world project to illustrate simgrid project creation. - - Embed libpcre into the Simgrid installer to avoid + - Add an hello world project to illustrate SimGrid project creation. + - Embed libpcre into the SimGrid installer to avoid its compilation burden * The raw execution contexts should work on Apple now * Port to Windows 64 bits @@ -2821,7 +2874,7 @@ SimGrid (3.6.1) stable; urgency=low SimGrid-java (3.6) unstable; urgency=low * Initial release. - * Split of every thing from simgrid v3.5 into a separate package. + * Split of every thing from SimGrid v3.5 into a separate package. -- 2011-10-05 Da SimGrid team @@ -3335,7 +3388,7 @@ SimGrid (3.4) stable; urgency=low * Greatly improved our cdash/ctest interactions Check http://cdash.inria.fr/CDash/index.php?project=Simgrid * Added memory checking tests with valgrind; lot of memleak fixing. - This may be the first release of simgrid with so few memory issues + This may be the first release of SimGrid with so few memory issues * Added code coverage tests. Our coverage is still improvable, but at least we see it on cdash. @@ -3641,7 +3694,7 @@ SimGrid (3.3.2) stable; urgency=low Timing report of this version: This version seem to be more than 5% faster than 3.3.1 (on linux - 64bits with contextes). The gain is less than expected, we are + 64bits with contexts). The gain is less than expected, we are investigating this for next release. -- Da SimGrid team Wed, 19 Aug 2009 17:07:12 +0200 @@ -3734,7 +3787,7 @@ SimGrid (3.3.1) stable; urgency=low - Linux(debian)/amd64/context - Linux(debian)/amd64/pthreads These targets fail about 1/10 of times on gras/pmm, but we believe - that this is because of the test, not because of simgrid. + that this is because of the test, not because of SimGrid. amok/saturate_sg fails even more rarely, and the test may not be the problem. @@ -3791,7 +3844,7 @@ SimGrid (3.3) stable; urgency=high is really less memory-demanding, which should allow you to use larger files in SimGrid [AL]. - * Inform valgrind about our contextes, so that it becomes usable + * Inform valgrind about our contexts, so that it becomes usable with the default (and more effecient) version of SimGrid [contributed by Sékou Diakite, many thanks]