X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/400993260dd878fe2efe0650baeb255502bce927..19d960b39f76697f0de77a09768f8e5b89f0c8b4:/ChangeLog diff --git a/ChangeLog b/ChangeLog index bb5a774186..1bc9b8ced4 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,24 +1,116 @@ -SimGrid (3.15) UNRELEASED; urgency=low +SimGrid (3.16) UNRELEASED + + Portability status: + - FreeBSD: Disable SMPI mmap privatization, switch automatically to dlopen. + - Mac, BSD: dlopen+thread broken, switch automatically to raw contexts. + + SimDag + - New and Backwards Compatibility break: + SD_simulate_with_update (double how_long, xbt_dynar_t changed_tasks_dynar) + When one wants to get the list of tasks whose states have changed during a + simulation round, s/he has to allocate and free a dynar and use it as argument + to this function. The former SD_simulate (double how_long) now returns void. + + SMPI + - New algorithm to privatize globals: dlopen, with dynamic loading tricks + - New option: smpi/keep-temps to not cleanup temp files + + XBT/Replay: + - New function xbt_replay_action_get(): + Retrieve the function previously associated to an event type. + + -- Release target: June 21 2017 -- Da SimGrid team + +SimGrid (3.15) stable; urgency=low + + The Spring Release: continuous integration servers become green + We fixed even the transient bugs on all target architectures: + Linux (CentOS, Debian, Ubuntu, Fedora), Mac OSX (Mavericks, El Capitan) + Windows, FreeBSD, NetBSD. - Rename NetCards to NetPoints. This was intended to help NS3 users, but that's not a netcard. - That's a point in the routing algorithm, let's avoid do wrong simplifications. + That's a point in the routing algorithm, let's avoid wrong simplifications. MSG - - New function: MSG_process_yield() + - New: MSG_process_yield(). Stop and yield to other processes. + - New: MSG_process_daemon(). Daemon processes are automatically killed + when the last non-daemon process terminates + - New: MSG_process_ref/unref(). Fiddle with the process refcounting. + - Renamed MSG_energy_plugin_init() -> MSG_host_energy_plugin_init() + to make room for the upcoming network energy plugin. + - Drop MSG_host_get_current_power_peak: duplicates MSG_host_get_speed Java - Ensure that an actor can kill itself with Process::exit() - Kill the obscure NativeException. Nobody want to survive the issues it denotes, so use JniException that is a RuntimeException (not to - be catched explicitely). + be caught explicitly). + - Partial bug fix in initialization. SimGrid flags on command line were + consumed at C level but stayed in the original Java String[] args. + This could mess users' args[i] if SG flags were not put at the end of + the command line. + The SimGrid flags are now removed from the Java arguments. However, + the number of arguments REMAINS UNCHANGED. It is then UNSAFE to test + if args.length is greater than the number of YOUR OWN ARGUMENTS. + It might be if you have --log or --cfg flags in the command line. + - Fix numerous memleaks all around the place. In particular, around VMs. S4U - New callbacks: - - simgrid::s4u::onPlatformCreated: right before the simulation starts - - simgrid::s4u::onSimulationEnd: right after the main simulation loop + - s4u::onPlatformCreated: right before the simulation starts + - s4u::onSimulationEnd: right after the main simulation loop + - s4u::onTimeAdvance: right after a clock change (time is discrete) + - s4u::Host::onSpeedChange: when the pstate is changed, or when an + event from the availability_file changes the avail speed. + - Links are now usable from s4u + - New: Engine::hostList() and Engine::hostCount(). Still clumsy. + - New: Actor::suspend(), Actor::resume(), and Actor::migrate(new_host) + - New examples: The conversion of MSG examples to S4U has begun + - Actors: create, kill, migration, and suspend + - Applications: master-worker and token-ring + - Action replay: communications and storage + - Drop Host::getPstateSpeedCurrent() which duplicates Host::speed() - -- target_date=March 20 2017 -- Da SimGrid team + SimDag + - Backwards Compatibility breaks + - The SD_route_get_list and SD_route_get_size functions have been removed. + They are replaced by the unique + void sg_host_route(sg_host_t src, sg_host_t dst, xbt_dynar_t links) + The route from src to dst is built in the links dynar whose size can + be obtained with xbt_dynar_length. + - The SD_route_bandwidth and SD_route_latency functions have been replaced by + sg_host_route_bandwidth and sg_host_route_latency. + Macros ensure the backwards compatibility, but you should fix your code + + SMPI + - Major C++ rewrite ongoing (SMPI used to be C compiled in C++). + This can break codes using SMPI internals (from private.h instead of the public smpi.h). + - Bump our claim of support from MPI 1.1 to MPI 2.2. + We don't support 100% of it, but it should be enough. Contact us if not. + - MPI_Win_lock/unlock, MPI_Get_accumulate support added (as for all RMA, implementation is + naive and probably inaccurate) + - New algorithm for SMPI_SHARED_MALLOC: global, where all blocks are + mapped onto a unique small file using some system magic. + - Bugfix: smpirun was sometimes misusing hostfile when wrongly terminated + - Fortran: cleanups, fixes, support of user-added operations + - RMA: MPI_Accumulate are applied in correct order. + - RMA: MPI_Win_{complete/post} shouldn't miss messages anymore. + - Better support for MPI_IN_PLACE + - Support for MPI_Win attrs and keyvals. + - Support MPI_Comm_group_create, MPI_Type_size_x + - MPI ops should be properly applied to all allowed types + - Replace implementation of MPI_Bcast "scatter followed by rdb allgather" + algorithm by a non failing one from mpich. + + XBT + - Kill the fifo data container: we don't use it anymore. + + XML + - A can now be created with different speed values to represent pstates. + see examples/platforms/energy_cluster.xml for an example. + + -- Wed Mar 22 17:50:21 CET 2017 -- Da SimGrid team SimGrid (3.14.159) stable; urgency=low @@ -42,7 +134,12 @@ SimGrid (3.14) stable; urgency=low * We now need python3 for our testing infrastructure. * Model checking needs libevent + MC + * Now works on FreeBSD + SMPI + * Privatization now works on FreeBSD + * Privatization is now activated by default in smpirun You can turn it off with -no-privatize if something goes wrong. @@ -123,7 +220,7 @@ SimGrid (3.14) stable; urgency=low MSG: * Memory usage should be decreased for simulations with a large number - of processes. This also helps for SMPI. + of processes. This also helps for SMPI. -- Sat Dec 24 22:34:26 CET 2016 Da SimGrid team