X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/e55e975804ae9c6ec82a5fbac2c7ea2497757a28..19d960b39f76697f0de77a09768f8e5b89f0c8b4:/ChangeLog diff --git a/ChangeLog b/ChangeLog index bec4c08627..1bc9b8ced4 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,18 +1,228 @@ -SimGrid (3.14) 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 wrong simplifications. + + MSG + - 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 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: + - 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() + + 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 + + The previous release was only a crude approximation of a Pi release; + this one should be a bit better. + + - Revert a last minute change that broke on Mac OSX. + - Fix the changelog and NEWS files. + - Improve the documentation, in particular of the routing module. + - Integrate some patches flying around in Debian. + + -- Wed Dec 28 17:14:49 CET 2016 Da SimGrid team + +SimGrid (3.14) stable; urgency=low + + Documentation + * The whole documentation was reworked and reorganized. There is + still much room for improvement here, but we're on it. + + Infrastructure + * 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. + * Call-location tracing for SMPI. You can add the exact location (filename / linenumber) of an MPI call to your trace files and slow down or speed up the simulation between two - consecutive calls by using an adjustment file. (See the documentation.) + consecutive calls by using an adjustment file (see the documentation). - * Fixed computation of timings for MPI_Send, MPI_Recv but possibly also others + * Fixed computation of timings for MPI_Send, MPI_Recv & possibly also others We've found a bug that prevented SMPI to account for MPI_Send, MPI_Recv and others (in some cases) in a correct way. That is, the smpi/os, smpi/or values were ignored in some cases. The timings of these functions can now be significantly different. - -- $date Da SimGrid team + * smpi/cpu-threshold:-1 should become smpi/simulate-computation:no + smpi/running-power is renamed to smpi/host-speed + + * smpi/grow-injected-times option to enable or disable multiplication of the + timings injected in MPI_Iprobe, or MPI_Test. Enabled by default, which can + make simulation less precise (but also much faster). + + * smpirun script should be (much) faster for large deployments. + + * SMPI tracing : fixed issue with poor matching of send/receives. + + * Replay : Fix broken waitall + + New functions and features + * MSG_parallel_task_execute_with_timeout, to timeout computations. + + Dropped / renamed functions and features + * msg_mailbox_t and associated functions. Use s4u::Mailbox instead. + - MSG_mailbox_is_empty() -> Mailbox::empty() + - MSG_mailbox_front() -> Mailbox::front() + - MSG_mailbox_get_by_alias() -> simgrid::s4u::Mailbox::byName(name) + - MSG_mailbox_get_task_ext() -> MSG_task_receive_ext() + - MSG_mailbox_get_task_ext_bounded -> MSG_task_receive_ext_bounded + - MSG_host_(get/set)_params -> MSG_vm_(get/set)_params + * Don't pass the free_f parameter to property related functions: + - MSG_host_set_property_value() + - MSG_as_router_set_property_value() + - MSG_storage_set_property_value() + * VM properties. Since msg_vm_t are msg_host_t, just use + MSG_host_get_property_value() and friends + * VM I/O related things: + - Ignored parameter of vm_create: core_nb, disk_path and disk_size. + - Unimplemented save/restore methods + * MSG_as_router_get_property_value() was redundent with + MSG_environment_as_get_property_value(). + - Removed MSG_as_router_*propert*() functions + - Added MSG_environment_as_set_property_value() for consistency + * xbt heterogeneous dictionnaries (created with xbt_dict_new()). + Well, they are still there for now, but deprecated with a warning. + Please switch to xbt_dict_new_homogeneous() before this is removed + for real. + * Task affinity. Its intended behavior (that was very badly tested + and probably not really working) was deceiving what most users + would have hoped here. + * xbt_os_sem_get_value: unused internally, deprecated on OS X El Capitan + * Option network/coordinates is now useless and should be dropped. + + Storage: + * Added option storage/max_file_descriptors to allow more than 1024 files opened + + SURF: + * Added option maxmin/concurrency_limit to allow more than 100 processes per host + * Added Dragonfly topology support + + XML: + * Add Exa- and Peta- units such as EiB, EB, Eib, Eb for size, and + EiBps, EBps, Eibps, Ebps for bandwidth. + They may become useful to some lucky ones. + + Java: + * New functions: msg.Comm.waitAll() and msg.Comm.waitAny() + * ex/app_tokenring: new example, very similar to the MSG Token Ring + * ex/async_waitAll: new example, on asynchronous communications + + MSG: + * Memory usage should be decreased for simulations with a large number + of processes. This also helps for SMPI. + + -- Sat Dec 24 22:34:26 CET 2016 Da SimGrid team SimGrid (3.13) stable; urgency=low