-SimGrid (3.11) NOT RELEASED; urgency=low
+SimGrid (3.12) NOT RELEASED; urgency=low
+
+ Build System
+ * Require g++ v4.7 at least to not speak prehistorical C++.
+ * Require Boost 1.48 (for signal2 component).
+ * Java must be version 7 at least when activated.
+ * Tracing is now always enabled (no way to turn it out)
+ * Remove GTNetS. It was not working anyway.
+ * Move headers around to sort them out on installed systems:
+ - instr/instr.h -> simgrid/instr.h
+ - instr/jedule/* -> simgrid/jedule
+ - simdag/datatypes.h was removed
+ - simdag/simdag.h -> simgrid/simdag.h
+ - msg/datatypes.h was removed
+ - msg/msg.h -> simgrid/msg.h
+
+ cMSG:
+ * Interface improvement:
+ - Rename MSG_host_is_avail(h) to MSG_host_is_on(h)
+ - Sanitize the interface in MSG_task_ module:
+ - Merge two functions that were close enough but misleading:
+ set_compute_duration(t) -> set_flops_amount(t)
+ get_remaining_computation(t) -> get_flops_amount(t)
+ - set_data_size(t) -> set_bytes_amount(t)
+ get_data_size(t) -> get_bytes_amount(t)
+ - Massive cleanups in the functions related to the energy
+ - MSG_host_get_pstate_number() -> MSG_host_get_nb_pstates()
+ - New: MSG_host_get_pstate()
+ * New example:
+ - msg/energy/onoff: switching hosts on and off
+ jMSG:
+ * Interface improvement:
+ - Rename Host.isAvail() to Host.isOn()
+ - Rename Process.currentProcess() to Process.getCurrentProcess()
+ - Rename Task.setDataSize() to Task.setBytesAmount()
+ - Merge Task.getRemainingDuration() and Task.getComputeDuration() into Task.getFlopsAmount()
+ * Bug fixes:
+ - #18874: Actually allows the GC to reclaim tasks
+
+ SIMIX:
+ * New functions
+ - SIMIX_process_throw: raises an exception in a remote process
+ * Refactoring: Separate sub-modules
+ - libsmx: the public interface, as libc in a real system
+ - popping: the strange dance that converts a user request into a kernel handling
+ - smx_context_*: the virtualization mechanisms that embed the user code
+ - smx_*: the handling of each simcalls
+ * Interface cleanup:
+ - simcall_host_set_power_peak_at -> simcall_host_set_pstate
+ * Rename smx_action_t into smx_synchro_t, making explicit that these
+ things are used to synchronize processes with their environment.
+ For example, a communication is a sort of synchronization involving
+ the communicating processes (that may block until the exchange) and
+ the platform. The same can be said from computations, etc.
+ * Bug fixes:
+ - #18888: segfault when a process ends before its kill_time
+
+ SMPI:
+ * New functions
+ - Onesided early support for : MPI_Win_(create, free, fence, get_name, set_name, get_group), MPI_Get, MPI_Put, MPI_Accumulate, MPI_Alloc_mem, MPI_Free_mem.
+ - MPI_Keyval*, MPI_Attr* functions, as well as MPI_Comm_attr*, MPI_Type_attr* variants (C only, no Fortran support yet)
+ - MPI_Type_set_name, MPI_Type_get_name
+ - MPI_*_c2f and MPI_*_f2c functions
+ - MPI_Info_* functions (beware, get_nthkey may not follow the insertion order)
+ - MPI_Pack, MPI_Unpack and MPI_Pack_size functions
+ - Activate a lot of new tests from the mpich 3 testsuite
+ * Features
+ - Constant times can be injected inside MPI_Wtime and MPI_Test through options smpi/wtime and smpi/test
+ - 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
+ * 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/).
+ - Support for Rabenseifner Reduce/Allreduce algorithms (https://fs.hlrs.de/projects/par/mpi//myreduce.html)
+ * Replay
+ - Replay now uses algorithms from wanted collective selector
+ - Replay can be used with SMP-aware algorithms
+ - Memory occupation of replay should now be contained (temporary buffers allocated in collective algorithms should be shared between processes)
+ - Replay can now replay several traces at the same time (check examples/smpi/replay_multiple example), to simulate interactions between several applications on a given platform. User can specify the start time of each instance. This should also allow replay + actual applications to run.
+ * Bug fixes
+ - [#17799] : have mpi_group_range_incl and mpi_group_range_excl better test some corner cases
+ - Correctly use loopback on fat-tree clusters
+ - Asynchronous small messages shouldn't trigger deadlocks anymore
+ * Energy/DVFS cleanup and improvement
+ - smpi_set_host_power_peak_at() -> smpi_set_host_pstate()
+ - new: smpi_get_host_pstate()
+ SURF
+ * Bug fixes
+ - "Full" network optimization flag was broken since Surf++
+ - Better handling of precision flags in maxmin
+ - Fix bug causing sometimes "Impossible" errors
+ - Properly pass cluster properties to included hosts
+ * Improvement of the Energy plugin.
+ - Always update the consumption before returning that value
+ - New property: watt_off to denote the dissipation when the host is off
+ - New functions getWattMinAt and getWattMaxAt to retrieve the
+ dissipation of pstates that we are not currently at.
+ * Java: class NetworkLink renamed to Link
+ * New function: simcall_process_get_kill_time()
+ * Massive rename s/workstation/host/
+ - That's intrusive, but that's good for the project consistency. Sorry.
+ - Change config option "workstation/model" into "host/model"
+ XBT
+ * New functions
+ - Add a xbt_heap_update function, to avoid costly xbt_heap_remove+xbt_heap_insert use
+ - Add a xbt wrapper for simcall_mutex_trylock (asked in [#17878])
+ - Add two new log appenders : rollfile and splitfile. Patch by Fabien Chaix.
+ - xbt_dirname and xbt_basename for non-POSIX systems
+ MC
+ * The model checker now runs as a separate process.
+ * The model checker runs must now be launched with the new simgrid-mc program.
+ * Record/Replay: the MC can display a textual representation of a path in the
+ execution graph. It can then be replayed outside of the model checker.
+
+ -- $date Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
+
+SimGrid (3.11) stable; urgency=low
The Class Release.
* New option "msg/debug_multiple_use" to help debugging when a task is used
several times
* MSG IO
- - Improvements and finalization of MSG_storage, MSG_file APIs and their documentation
+ - Improvements and finalization of MSG_storage, MSG_file APIs and their
+ documentation
- Increase code coverage in test suites
- Bug fixes
-
+
SIMIX:
* Protect context stacks against stack overflow. The number of protected memory
pages allocated on the top of each stack (1 by default) can be configured
- Add callback functions for action state change
- Handle Energy as a plugin
* Replace swag by boost::intrusive
- * Add new routing model for clusters
+ * Add new routing models for clusters. For documentation, see
+ http://simgrid.gforge.inria.fr/simgrid/latest/doc/platform.html#pf_cluster
- tori, with topology="TORUS" and topo_parameters="ndim1,ndim2,...,ndimn"
parameters for cluster tag
- - Fat trees, with topology="FAT_TREE" and
+ - Fat trees, with topology="FAT_TREE" and
topo_parameters="h;m1,...,mh;w1,...,wh;p1,...,ph" parameters for cluster tag
- - see examples/platforms/torus_cluster.xml and
- example/platforms/fat_tree_cluster.xml
+ - see examples/platforms/torus_cluster.xml and
+ examples/platforms/fat_tree_cluster.xml
* More documentation
SMPI:
* Collective communication algorithms should not crash if used with
improper number of nodes and report the error.
* SMPI now partially supports MPI_Topologies : MPI_Cart_create, MPI_Cart_shift,
- MPI_Cart_rank, MPI_Cart_get, MPI_Cart_coords, MPI_Cartdim_get,
+ MPI_Cart_rank, MPI_Cart_get, MPI_Cart_coords, MPI_Cartdim_get,
MPI_Dims_create, MPI_Cart_sub are supported.
* New interface to use SMPI programmatically (still depends on MSG for
some parts, see examples/smpi/smpi_msg_masterslave) :
- - SMPI_app_instance_register(const char *name, xbt_main_func_t code,
+ - SMPI_app_instance_register(const char *name, xbt_main_func_t code,
int num_processes)
- SMPI_init()
- SMPI_finalize();
* Global variables privatization in MPI executables is now performed at runtime
- with the option smpi/privatize_global_variables (default:no).
- Limitations : Linux/BSD only, with mmap enabled. Global variables inside
- dynamic libraries loaded by the application are not privatized (static
+ with the option smpi/privatize_global_variables (default:no).
+ Limitations : Linux/BSD only, with mmap enabled. Global variables inside
+ dynamic libraries loaded by the application are not privatized (static
linking with these libraries is advised in this case)
Tracing:
- void XBT_barrier_destroy(xbt_bar_t barrier)
* Make the xbt_os_time module public
- -- $date Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
+ -- Sat May 31 22:39:38 CEST 2014 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
SimGrid (3.10) stable; urgency=low
* Add a --cfg:tracing/smpi/internals option, to trace internal communications
happening inside a collective SMPI call.
* Fix the behavior of complex data types handling.
- * Make MPI_Wtime another synchronization point to take computations into account.
+ * Make MPI_Wtime another synchronization point to take computations into
+ account.
* Replace MPICH-1 test suite by the one from MPICH 3.0.4. Can be built using
enable_smpi_MPICH3_testsuite flag in cmake. Run with ctest.
* Add all missing Fortran bindings, SMPI should work with Fortran 90
