-SimGrid (3.15) UNRELEASED; urgency=low
+SimGrid (3.17) UNRELEASED (release target: September 22 2017)
- The Ever Green Release.
+ S4U
+ - Comm.detach(): start and forget about asynchronous emission
+ - this_actor::send(mailbox) is now mailbox->put()
+
+SimGrid (3.16) Released June 22. 2017.
+
+ The Blooming Spring Release: developments are budding.
+
+ Portability status:
+ - FreeBSD: Disable SMPI mmap privatization, switch automatically to dlopen.
+ - Mac, BSD: dlopen+thread broken, switch automatically to raw contexts.
+ - Java JAR file should be finally fully working on Mac OSX too.
+
+ XML platforms: Switch to platform v4.1 format.
+ * This is (mainly) a backward compatible change: v4 are valid v4.1 files
+ - <zone> can be used as a synonym for the now deprecated <as>
+ - <zoneRoute> can be used as a synonym for the now deprecated <asroute>
+ - <bypassZoneRoute> an be used as a synonym for the now deprecated <bypassAsRoute>
+ - <actor> can be used as a synonym for the now deprecated <process>
+ - state_file and avail_file periodicity is now easier to express
+ (check the documentation) the old behavior should still work.
+ * Storage: not backward compatible, but it seems that nobody ever used it
+ - Remove attribute 'content_type' of <storage_type>: was never used
+ - Make attribute 'model' of <storage_type> optional: for future usage
+ - Remove Bconnection model property: was never (in)validated. Replaced by
+ the maximum of the read and write bandwidth as a resource constraint.
+
+ 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.
+
+ Virtual Machines
+ - Allow multicore VMs, with the correct sharing (unless you overcommit)
+ BUG: vCPU overcommitting still leads to buggy sharing, though. WIP.
+
+ Energy
+ - New function to update the consumption of all hosts at once.
+ - Fix the model for multi-core hosts, linear in the amount of busy
+ cores with an abnormality for pIdle (see paper).
+ BUG: Still not satisfactory for ptask on mono-cores.
+
+ MSG
+ - The netzone are now available from the MSG API.
+ The old names still work, but are now deprecated.
+
+ SMPI
+ - New algorithm to privatize globals: dlopen, with dynamic loading tricks
+ - New option: smpi/keep-temps to not cleanup temp files
+ - New option : smpi/shared-malloc-blocksize . Relevant only when global shared
+ mallocs mode is used, allows to change the size of the fake file used
+ (default 1MB), to potentially limit the number of mappings for large runs.
+ - Support for sparse privatized malloc with SMPI_PARTIAL_SHARED_MALLOC()
+ - Fortran ifort and flang compilers support
+ - New RMA calls supported (experimental) :
+ - MPI_Win_allocate, MPI_Win_create_dynamic, MPI_Win_attach
+ - MPI_Win_detach, MPI_Win_set_info, MPI_Win_get_info
+ - MPI_Win_lock_all, MPI_Win_unlock_all, MPI_Win_flush
+ - MPI_Win_flush_local, MPI_Win_flush_all, MPI_Win_flush_local_all
+ - MPI_Op_commutative, MPI_Fetch_and_Op, MPI_Compare_and_swap
+ - MPI_Rput, MPI_Rget, MPI_Raccumulate, MPI_Rget_accumulate
+
+ S4U
+ - New: this_actor::isMaestro() returns whether we are in kernel mode.
+ - Behind the scene, ActivityImpl are now automatically refcounted.
+ Removing this nasty bottleneck will greatly simplify our internals.
+
+ XBT
+ - Replay: New function xbt_replay_action_get():
+ Retrieve the function previously associated to an event type.
+ - DROPPED FUNCTION: xbt_str_varsubst()
+ - DROPPED MODULE: strbuff. We don't need it anymore.
+ - DROPPED MODULE: matrix. We don't need it anymore.
+ - DROPPED MODULE: lib. We don't need it anymore.
+
+ -- Thu Jun 22 22:48:12 CEST 2017 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
+
+SimGrid (3.15) Released March 22. 2017
+
+ 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.
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:
- 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
Macros ensure the backwards compatibility, but you should fix your code
SMPI
- - 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.
+ - 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 file.
- - 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, and
- MPI_Win_complete or MPI_Win_post shouldn't miss messages anymore.
+ 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.
XML
- A <cluster> can now be created with different speed values to represent pstates.
see examples/platforms/energy_cluster.xml for an example.
- -- target_date=March 20 2017 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
-SimGrid (3.14.159) stable; urgency=low
+SimGrid (3.14.159) Released December 28. 2016
The previous release was only a crude approximation of a Pi release;
this one should be a bit better.
- 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-devel@lists.gforge.inria.fr>
-
-SimGrid (3.14) stable; urgency=low
+SimGrid (3.14) Released December 24. 2016
Documentation
* The whole documentation was reworked and reorganized. There is
* 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-devel@lists.gforge.inria.fr>
-
SimGrid (3.13) stable; urgency=low
The Half Release, a.k.a. the Zealous Easter Trim.
