-SimGrid (3.11) NOT RELEASED; urgency=low
+SimGrid (3.13) UNRELEASED; urgency=low
+
+ The Easter Trim Release.
+
+ Backwards Compatibility breaks
+ - Some command line options were renamed for consistency sake:
+ - model-check/sparse-checkpoint -> model-check/sparse_checkpoint
+ - smpi/async_small_thres -> smpi/async_small_thresh
+ - smpi/send_is_detached_thres -> smpi/send_is_detached_thresh
+
+ - Removed Lua simulation bindings (switch to C or Java for that).
+ Lua can still be used to describe platforms
+ - Removed Java kernel plug-ins.
+ Will be reintroduced after the ongoing major internals reorg.
+ - In SimDag
+ - The ACCESS_MODE of SD_workstation has been removed. This feature was not really usable and should soon be
+ replaced by a more flexible mechanism.
+ - The following functions thus do not exist anymore
+ - SD_workstation_get_access_mode
+ - SD_workstation_set_access_mode
+ - SD_workstation_get_current_task
+ - Basic estimation functions have been removed but can easily be replaced
+ - SD_route_get_communication_time => SG_route_get_latency() + amount / SD_route_get_bandwidth()
+ - SD_workstation_get_computation_time => amount / sg_host_speed()
+
+ XML platforms:
+ * Switch to platform v4 format.
+ - Rename from 'power' to 'speed' the attributes describing the amount of
+ flops that a <host>, <peer>, <cluster> or <cabinet> can deliver per second.
+ - In <trace_connect>, attribute kind="POWER" is now kind="SPEED".
+ - The DOCTYPE points to the right URL (this file):
+ http://simgrid.gforge.inria.fr/simgrid/simgrid.dtd
+ (the file at this address now documents the changelog since its v1)
+ - A warning is emitted for unit-less values (they are still accepted).
+ - speed. Default: 'f' or 'flops'. Also defined:
+ 'Yf', 'Zf', 'Ef', 'Pf', 'Tf', 'Gf', 'Mf', 'kf'
+ 'yottaflops', 'zettaflops', 'exaflops', 'petaflops', 'teraflops', 'gigaflops', 'megaflops', 'kiloflops'
+ - bandwidth. Default: 'Bps' bytes per second (or 'bps' for bits but 1 Bps = 8 bps)
+ Also defined in bytes: 'TiBps', 'GiBps', 'MiBps', 'KiBps', 'TBps', 'GBps', 'MBps', 'kBps', 'Bps'
+ And the same in bits: 'Tibps', 'Gibps', 'Mibps', 'Kibps', 'Tbps', 'Gbps', 'Mbps', 'kbps', 'bps'
+ - latency. Default: 's' second. Also defined:
+ 'w' week, 'd' day, 'h' hour, 'm' minute, 'ms' millisecond, 'us' microsecond, 'ns' nanosecond, 'ps' picosecond
+
+ * bin/simgrid_update_xml can upgrade your files automatically (won't convert unit-less values)
+ tools/sg_xml_unit_converter.py may help (but it's just a warning and will probably ever be).
+
+ S4U
+ * s4u::Host is now the preferred public interface to the Host features.
+ sg_host_* functions are C bindings to the exact same behavior
+ MSG_host_* and SD_workstation_* are #define to the sg_host_* ones
- TENTATIVE RELEASE GOALS for 3.11:
- * Consider the removal of Supernovae mode if no user has manifested since the
- release of version 3.10.
- * Switch to tesh.pl, and kill the now unused parts of xbt that seem fragile
- * Switch to surf++, and reintegrate the hypervisor branch on top of it
+ MSG
+ * Kill all deprecated functions (the ones you had when declaring MSG_DEPRECATED).
+ They were deprecated since a few years, and probably did not even compile anymore.
+
+ SimDag
+ * The API has been profoundly modified to directly use the core objects instead of redefining its own.
+ SD_Workstation_t and SD_link_t are now sg_host_t and sg_link_t respectively.
+ Some functions have also been renamed for consistency. Backward compatibility is maintained, but users are
+ encouraged to update their codes. A list of the modified functions can be found at the end of
+ include/simgrid/simdag.h
+
+ Simix
+ * simgrid::simix::kernel() is the closure callback. It ensures that
+ the lambda or closure passed as a parameter will run in kernel mode.
+ Every callbacks should be rewritten to that interface at some point.
+
+ Surf
+ * Reorganizing and cleaning the internals all around the place.
+
+ SMPI
+ * Remove old default barrier/bcast buggy algorithms (see #18407)
+ * Various bug fixes to handle more codes
+ XBT
+ * Kill the setset data container: MC don't use it anymore.
+ * Kill the queue data container: it made more sense with GRAS.
+ * Kill the xbt_peer_t data type: it's useless without GRAS.
+ * New functions:
+ - xbt_dynar_sort_strings(), when the content is char*
+ - xbt_str_parse_int / xbt_str_parse_double, wrapping strtol/strtod
+ They throw exceptions on invalid input.
+
-- $date Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
+SimGrid (3.12) stable; urgency=low
+
+ The Facelift Release.
+
+ 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.
+ * Builds on Windows again (including Java bindings).
+ * Tracing is now always enabled (no way to turn it out)
+ * Remove GTNetS. It was not working anyway.
+ * Various cleanups in the cmake scripts.
+ * 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.
+
+ -- Mon Oct 12 06:02:41 CEST 2015 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
+
+SimGrid (3.11) stable; urgency=low
+
+ The Class Release.
+
+ Tools:
+ * Normalizing pointers addresses tool for better diff between logs
+
+ Examples:
+ * Add cloud examples using new VMs
+ - examples/msg/cloud/two_tasks_vm.tesh
+ - examples/msg/cloud/simple_vm.tesh
+ - examples/java/cloud/cloud.tesh
+ - examples/java/cloud/migration/migration.tesh
+ * Add java surf examples:
+ - examples/java/surfPlugin/surf_plugin.tesh
+ - examples/java/reservationSurfPlugin/reservation_surf_plugin.tes
+ - examples/java/surfCpuModel/surf_cpu_model.tesh
+ * Add SMPI+MSG example:
+ - examples/smpi/smpi_msg_masterslave/
+
+ TeshSuite:
+ * Add tests:
+ - msg process test
+ - msg task destroy cancel test
+ - msg_host on/off test
+ * Move all tests in testsuite to teshsuite (adding tesh files)
+ * Restructure teshsuites
+ - one folder for each kind of test
+ * Restructure AddTests.cmake
+ - unify tests names
+ - structure the order of tests (with sections)
+
+ MSG:
+ * Add virtual machine
+ - creation of a VM on a PM
+ - migration of a VM from a PM to another PM
+ * New functions
+ - MSG_process_join(msg_process_t process, double timeout)
+ - msg_bar_t MSG_barrier_init(unsigned int count)
+ - int MSG_barrier_wait(msg_bar_t barrier)
+ - void MSG_barrier_destroy(msg_bar_t barrier)
+ - msg_as_t MSG_environment_as_get_by_name(const char * name)
+ * 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
+ - 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
+ with the new command line option --cfg=contexts/guard_size:<value>.
+ * Simcalls are now generated by a python script that
+ - generates files included by SimGrid
+ - checks that all the functions exist, and proposes prototypes
+ * Clean simcalls
+ - remove sem_destroy, file_set_data, comm_destroy, vm_set_state,
+ host_set_data, host_get_data
+ * New simcalls
+ - simcall_process_join(smx_process_t process, double timeout)
+ * Fix bug where sleeping processing could not be suspended.
+
+ SURF:
+ * Translate surf models from C to C++
+ - Generic classes for all models: Model, Resource, Action
+ - A generic interface for each kind of model (CPU, Network, Storage
+ Workstation, WorkstationVM)
+ - C bindings
+ * Translate surf routings from C to C++
+ * Add callbacks using sigc++ or boost::signals2
+ - Add callback functions for resource creation/destruction
+ - Add callback functions for action state change
+ - Handle Energy as a plugin
+ * Replace swag by boost::intrusive
+ * 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
+ topo_parameters="h;m1,...,mh;w1,...,wh;p1,...,ph" parameters for cluster tag
+ - see examples/platforms/torus_cluster.xml and
+ examples/platforms/fat_tree_cluster.xml
+ * More documentation
+
+ SMPI:
+ * Hostfiles support host:nb_processes construct to deploy several processes on
+ one node.
+ * 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_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,
+ 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
+ linking with these libraries is advised in this case)
+
+ Tracing:
+ * Options defined in XML work correctly now.
+
+ Java:
+ * New cmake option, enable_lib_in_jar, to control whether native libraries are
+ copied into simgrid.jar or not (ON by default). Use this option if you want
+ to reduce the size of the installed simgrid.jar, *and* the native libraries
+ are kept installed elsewhere.
+ * Surf binding with SWIG (code generated in maintainer mode only):
+ - plugin to handle callbacks
+ - CPU model only for the moment
+
+ Build System:
+ * Supernovae build mode is definitively removed. It was used to improve
+ inlining and inter-module optimizations. It is nowadays superseded by
+ link-time optimizations commonly available in compilers.
+ * Update ns-3 find lib. Bindings for ns-3 should work again now.
+ * Add boost dependency for surf++
+ * Add new macro for tests
+ - ADD_TESH(name <tesh_args>)
+ - ADD_TESH_FACTORIES(name "thread;ucontext;raw" <tesh_args>)
+
+ XBT:
+ * New functions
+ - xbt_bar_t XBT_barrier_init(unsigned int count)
+ - int XBT_barrier_wait(xbt_bar_t barrier)
+ - void XBT_barrier_destroy(xbt_bar_t barrier)
+ * Make the xbt_os_time module public
+
+ -- Sat May 31 22:39:38 CEST 2014 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
+
SimGrid (3.10) stable; urgency=low
The Clean Diaper Release, a.k.a. SimGrid is leak-free.
* 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
* Supernovae builds are deprecated, and expected to be removed in the next
version of SimGrid.
- -- Fri Nov 15 16:56:21 CET 2013 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
+ -- Sun Nov 17 00:26:44 CET 2013 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
SimGrid (3.9) stable; urgency=low
* New option "enable_mallocators" to disable mallocators, for debugging
purpose ("on" by default).
- Simix:
+ SIMIX:
* Bug fixes around the resource failures: don't let the processes
survive the host they are running onto.
* Add an interface to auto-restart processes when the host in which they are