+SimGrid (3.8) NOT RELEASED; urgency=low
+
+ The "SimGrid makes psssshiiiit and jumps into the cloud" release.
+
+ Cmake:
+ * Remove option custom_flags. Now use environment variables CFLAGS
+ and LDFLAGS.
+ * Enable tracing by default. This modules rocks you should use it.
+ * Use default cmake things to detect lua instead of home grown ones.
+
+ Documentation:
+ * Split the doc into a user guide and a reference guide.
+
+ MSG:
+ * Add an experimental interface to manipulate VMs. They are mainly
+ process groups with very few intrinsic semantic, but they should
+ allow you to build the semantic you want easily.
+ * New function: MSG_host_set_property_value()
+ * Deprecate functions MSG_global_init() / MSG_global_init_args()
+ Please use MSG_init() instead. (reducing the amount of entry
+ points in the library helps us).
+ * Make it impossible to link against the wrong version of the lib
+ * Bug fixes that made the host (and link) failures unusable.
+
+ Simix:
+ * Bug fixes around the resource failures: don't let the processes
+ survive the host they are running onto.
+ * Add an interface to execute cleanup functions when a process is killed,
+ to avoid memory leaks.
+
+ SimDag:
+ * New types of typed tasks. SD_TASK_COMP_PAR_AMDAHL represents a
+ parallel task whose initial work is distributed among host according
+ to the Amdahl's law. Such tasks are created with a parameter alpha
+ that corresponds to the non-parallelizable part of the computation.
+ SD_TASK_COMM_PAR_MXN_1D_BLOCK represents a complex data redistribution
+ between two sets of workstations assuming a 1D block distribution (each
+ workstation owns a similar share of data) on both sides.
+
+ These tasks can be scheduled with SD_task_schedulel or SD_task_schedulev.
+ Data redistribution will be automatically scheduled once parent and child
+ are both scheduled. The filling of computation_amount and
+ communication_amount structures is now done seamlessly thanks to the chosen
+ assumptions.
+ * New function SD_workstation_dump to display various information
+
+ XBT:
+ * Functions xbt_dict_hash() and xbt_dict_hash_ext() are made public,
+ and renamed to xbt_str_hash() and xbt_str_hash_ext().
+
+ -- $date Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
+
+SimGrid (3.7.1) stable; urgency=low
+
+ MSG:
+ * Restore the prototype of MSG_process_create_with_environment() to
+ the pre-3.7 situation by removing the kill_time argument.
+ * Add a MSG_process_set_kill_time() function instead.
+
+ SURF:
+ * Fix weird behaviors when dealing with parallel tasks.
+
+ WINDOWS:
+ * Simgrid is now built as a dll.
+ * Simgrid-java now works on Windows.
+ * Simgrid-Java is now included into Windows package.
+
+ MacOS:
+ * First pre-build package for MacOSX.
+
+ Build System:
+ * Fix compilation when using MSG_USE_DEPRECATED.
+ * Fix some compilation issues on Macs and Windows.
+ * Reduce the number of failing tests on exotic systems, like Debian/Hurd.
+ * Environment variables CFLAGS and LDFLAGS are now honored by cmake.
+
+ We discovered that the Lua console is broken, but we are missing the
+ manpower to fix it right now. The problem existed in 3.7 too, so we
+ are not blocking the release for that. Sorry if you depended on this
+ feature, any help would be really welcome.
+
+ -- Thu Jun 7 2012 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
+
+SimGrid (3.7) stable; urgency=low
+
+ The "spring cleanups (before the next Big Project kicks in)" release.
+
+ Models:
+ * We can specify the SMPI latency/bandwidth factor with command line
+ add --cfg=smpi/bw_factor:"threshold0:value0;...;thresholdN:valueN"
+ or add --cfg=smpi/lat_factor:"threshold0:value0;...;thresholdN:valueN"
+ You can also use the "config tag" from platform file by adding this line
+ <prop id="smpi/bw_factor" value="threshold0:value0;...;thresholdN:valueN"></prop>
+ (see "example/platforms/tag_config.xml" to use "config tag").
+ Note that the command line supersedes the platform file configuration.
+ * Change the correction factors used in LMM model, according to
+ the latest experiments described in INRIA RR-7821.
+ Accuracy should be improved this way.
+ * Use the partial invalidation optimization by default for the
+ network too. Should produce the exact same results, only faster.
+ * Major cleanup in surf to merge models and split some optimization
+ mechanisms from the core of the models. As a result you can now
+ specify which model to use (e.g., --cfg=network/model:LV08
+ --cfg=cpu/model:Cas01) and which optimization mode to use
+ (e.g., --cfg=network/optim:lazy --cfg=cpu/optim:TI).
+ Incompatible combinations should err at initialization. See
+ --help-models for the list of all models and optimization modes.
+ * The CLM03 workstation model was dropped for simplicity because it
+ used the deprecated CM02 network model. Use default instead.
+ * Rename the TCP_gamma configuration option to network/TCP_gamma
+ * Rename the coordinates configuration option to
+ network/coordinates, and document it
+ * Use now crosstraffic keyword instead of the terribly misleading
+ fullduplex keyword. It is activated by default now in the current
+ default model, use --cfg=network/crosstraffic:0 to turn it off.
+ * Ongoing refactoring the model parsing to make XML files optional
+ See include/simgrid/platf.h for details (still to be completed)
+
+ MSG:
+ * Major overhaul of the documentation. Almost instructive now :/
+ * Deprecate the use of m_channel_t mechanism like MSG_task_{get,put}
+ functions and friends. This interface was considered as
+ deprecated since over 2 years, it's time to inform our users that it is.
+ Switch to MSG_task_{send,recv} instead, or compile SimGrid command line
+ 'cmake -Dcustom_flags="-DMSG_USE_DEPRECATED" .' if you really need to
+ use these (crappy) functions in your code.
+ These functions will be removed soon. Stop using them now.
+ * Deprecate MSG_get_host_{table,number}
+ Implement MSG_hosts_as_dynar() instead.
+ * Implement MSG_processes_as_dynar() (Closes gforge #13642)
+ * Remove the public field msg_host_t->name. Use MSG_host_get_name()
+
+ Simix:
+ * Stabilize the parallel execution mode of user contexts
+ * Introduce configuration variables to control parallel execution:
+ - contexts/synchro: Synchronization mode to use when running
+ contexts in parallel (either futex, posix or busy_wait)
+ - contexts/parallel_threshold: Minimal number of user contexts
+ that must be part of a scheduling round to switch to parallel
+ execution mode (raw contexts only)
+ * Fix bugs that prevented to use suspend/resume along with
+ synchronization structures.
+ * Fix bugs in process termination that lead to invalid memory access
+ in very specific conditions.
+
+ SURF:
+ * Introduce a parallel mode for the models (controlled by surf/nthreads
+ configuration item). In our tests, running the models in parallel
+ never lead to any speedups because they are so fast that the gain
+ of computing each model in parallel does not amortizes the
+ synchronization costs, even when ultra fast futexes are used.
+ This is released anyway because YMMV.
+
+ SimDag:
+ * Performance boost by using a swag internally to compute the set of
+ tasks that are finished and should constitute the return value of
+ SD_simulate.
+
+ SMPI:
+ * Enable it by default now that it is considered rather stable.
+
+ TRACE:
+ * Documentation of the tracing functions.
+ * Performance gains when tracing categorized/uncategorized resource
+ utilization by avoiding calls to get route when updating resource
+ variables. LMM constraints are being used instead.
+ * API changed to set task categories. Use MSG_task_set_category instead
+ of TRACE_msg_set_task_category, and SD_task_set_category instead
+ of TRACE_sd_set_task_category. They only work if ENABLE_TRACING is ON.
+ * Bugfix for graphicator, routes not correctly obtained, memory leaks
+ * Examples for link user variables added (see at examples/msg/tracing/)
+ * Deprecated function TRACE_msg_set_process_category completely removed
+ * Trace header updated according to the latest Paje file format
+ * Tracing network lazy updates, no longer obligate users to use full updates
+ * --cfg=tracing/platform:1 also registers power/bandwidth variables
+ * Experimental: let user code declare/set/push/pop application states for hosts
+ * API changed to allow the manual creation of graph configuration files
+ for Triva. See TRACE_get_node_types() and TRACE_get_edge_types().
+
+ Lua:
+ * Improve the API of Lua MSG bindings, using the Lua spirit.
+ * Each simulated process now lives in its own Lua world (globals are
+ automatically duplicated). It helps writing simulators. Will allow
+ to run Splay programs within SimGrid in the future.
+ * Add a Chord example in Lua, equivalent to the MSG one.
+
+ MODEL-CHECKING:
+ * Start the implementation of a solution to express temporal
+ properties, not only local assertions. This is still an
+ experimental work in progress, stay clear from it to be safe.
+
+ XBT:
+ * Logs:
+ - Add new runtime parameters --help-logs and --help-log-categories
+ to display informations about supported logging parameters and
+ categories.
+ - Old deprecated parameters --{gras,surf,msg,simix,xbt}-log=...
+ don't exists anymore.
+ * Mallocators: allow value NULL for the reset function.
+ * Dicts:
+ - New function xbt_dict_new_homogeneous(void(*)(void*)) to
+ create homogeneous dictionaries, where all the elements share the
+ same free function. Non homogeneous dictionaries will be
+ deprecated in the next release.
+ - Dicts of scalar elements (xbt_dicti_*) are deprecated.
+ - Multi-level dictionaries are deprecated.
+ * Dynars:
+ - new function xbt_dynar_search_or_negative() that is useful when
+ you have less than 2 million elements in your dynar and don't
+ want of the extra complexity of catching exceptions when the
+ element is not found.
+ * Portability layer
+ - Make xbt_os_thread module (for thread portability) public.
+ Documentation is still to come, sorry.
+ * mmalloc module:
+ - Cleanups and simplifications to make it maintainable again.
+ - Exotic features (such as memalign and valloc) were removed.
+ - The metadata were extended and improved so that the
+ model-checker becomes able to explore and inspect the heaps.
+ - This may induce a performance drop when enable_model-checking is
+ ON in cmake (even if it's not used in the simulation), but it is
+ necessary at this point to get MC working.
+
+ Turn model-checking OFF if simulation performance matters to you.
+ Not enabling it at runtime is not enough, disable it in cmake.
+
+ -- Tue May 15 11:30:19 UTC 2012 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
+
+SimGrid (3.6.2) stable; urgency=low
+
+ The "Not coding new stuff allows to polish old things" release.
+
+ General
+ * New bindings to the NS3 packet level simulator (experimental)
+ * Use the raw (efficient) execution contexts instead of the sysv
+ (portable) ones when possible.
+ * libpcre is now mandatory in any cases since not using it led to
+ severe performance loss and possibly other issues
+ * Update the XML platforms:
+ - G5K: include the latest machine in Nancy
+ - GridPP and LCG: new platforms
+ * Documentation was partially updated, at least (more to come)
+
+ Bug fixes, cosmetics and small improvements
+ * Free terminated processes before the end of the simulation to avoid
+ exhausting the memory of users having very dynamic amount of
+ processes.
+ * Bug fix and cosmetics about canceling non-running tasks
+ * Bug fix about the dot loader's issues when using libcgraph
+
+ Portability
+ * Create an installer for windows with nsis (amd64 and win32)
+ - Add an hello world project to illustrate simgrid project creation.
+ - Embed libpcre into the Simgrid installer to avoid
+ its compilation burden
+ * The raw execution contexts should work on Apple now
+ * Port to Windows 64 bits
+ - Sysv contexts now have an implementation for this arch
+ - GRAS communication features now support this arch
+ * Drop support for borland compiler on windows
+ - this code was not maintained, and we kinda depend on gcc nowadays
+ * Fix portability issues on kfreebsd/gnu: build error about semaphores
+ * Fix portability issue on unstable ubuntu: linker became picky on
+ argument order
+
+ -- Wed Oct 5 15:51:01 CEST 2011 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
+
+SimGrid (3.6.1) stable; urgency=low
+
+ The "Oops, we broke Macs too" release
+
+ Portability
+ * Fixed contexts detection so that raw ones are used when possible
+ * On Mac, do not use Posix Ucontexts with gcc v4.[1-5] since this
+ leads to a strange error, with user code segfaulting sometimes when
+ the generated code is not perfectly aligned (which is not
+ controllable from the user side, depends on the amount of code)
+
+ XBT
+ * New macro: CATCH_ANONYMOUS, which is like CATCH(e) but without argument.
+
+ -- Mon Jun 27 13:59:03 CEST 2011 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
+
+SimGrid (3.6) stable; urgency=medium
+
+ The Summer Release, also known as the "OMG! They Killed Kenny!" version
+
+ Java and Ruby:
+ * Bindings now constitute their own package, separated from the main one.
+ Rationale: reduce our maintenance nightmare by reducing the module coupling
+ They will soon be released on their own on gforge.
+ * In the meanwhile:
+ svn co svn://scm.gforge.inria.fr/svn/simgrid/contrib/trunk/simgrid-java
+ svn co svn://scm.gforge.inria.fr/svn/simgrid/contrib/trunk/simgrid-ruby
+
+ GRAS: It is not considered as stable anymore, but experimental. Sorry.
+ * It's not quite deprecated for now because we have no replacement,
+ but it may soon become the case.
+
+ SMPI
+ * New MPI functions supported: MPI_Comm_disconnect, MPI_Comm_get_name
+ * Fortran: New user-level cache variable to store the rank of the running
+ process. This improves performance by an order of magnitude.
+ * C: New coccinelle script to automatically locate and modify global and
+ local static variables.
+ * Improved SMPI network model with a sender-side gap to account for multiple
+ parallel sends.
+
+ MSG
+ * New function MSG_comm_get_status(). MSG_comm_test() and MSG_comm_testany()
+ only say if a communication is finished, no matter whether it succeeded or
+ failed. You can call MSG_comm_get_status() to know the status of a finished
+ communication.
+ * New function MSG_task_dsend() to send a task and detach it. When a
+ communication is detached, you are never notified of its success or failure
+ and the memory is released automatically once it is finished. This function
+ is useful when you don't care about the end nor the success of a
+ communication.
+ * Change the prototypes of action replay. Sorry for inconvenience,
+ but this is really more efficient this way (and to adapt your code,
+ you just have to fix the initialization, that shouldn't be too long)
+ * Kill the braindead MSG_task_refcount_dec() function. I guess nobody
+ ever managed to do anything useful with it.
+ * New function MSG_comm_testany(). Similarly to MSG_comm_waitany(), it
+ takes a dynar of communications. It returns immediately and gives the
+ index of a finished communication (if any).
+ * New example: a basic implementation of the Chord P2P algorithm.