+ MSG
+ * Asynchronous communications through the functions:
+ MSG_task_isend/irecv and MSG_comm_test/wait/waitall
+ * New function: MSG_load_platform_script()
+ to make possible using a lua script instead of XML files to set up platforms
+ * New function: MSG_set_function
+ to associate functions to processes, used when bypassing the parser
+ * New functions: MSG_task_set_name(), MSG_task_set_compute_duration()
+
+ Platforms: Add some more examples in examples/platforms
+ * Grid'5000: see www.grid5000.fr
+ * *_30000_hosts.xml: various huge files [mainly scalability testing]
+
+ SURF
+ * Change the XML format. This is a very important modification. SimGrid
+ 3.5 introduces a new hierarchical format based on the notion of
+ Autonomous Systems. Compatibility with old format is ensured
+ through the perl script provided in the install bin directory
+ bin/simgrid_update_xml.
+ It is now possible to build platforms with specific routing
+ mechanism (Full/Dijkstra/DijkstraCache/Floyd) and to easily
+ connect several platforms together. We will try to provide soon
+ set of realistic platforms exploiting these properties (have a
+ look at examples/platforms/ for the moment).
+ * Take the opportunity of the XML format change to be a good XML citizen:
+ rename link:ctn to link_ctn and similar changes (also dealed with by
+ simgrid_update_xml)
+ * Add a new routing scheme (rule-based) using regular expressions. It
+ enables to have an extremely low memory footprint when the
+ underlying routing is simple and can be compactly described. You
+ need to have libpcre4-dev (perl regular expressions) installed if
+ you want to use this routing scheme.
+ * Revive the cluster TAG and allow to easily and efficiently (both in
+ term of memory and speed) connect clusters together. Have a look
+ at teshsuite/simdag/platforms/ to see how this can be done. With
+ this tag, you can create clusters with thousands of tasks at no
+ cost (have a look at examples/platforms/).
+ Note: clusters are implemented as ASes, so there is no need for an
+ enclosing AS tag if you have only one cluster in your platform.
+ * Add new generic functions in the public interface that allows the user
+ to call SURF 'create_resource' methods from your code (same
+ functionality as the XML bypass mechanism but with a much lighter
+ burden).
+ * Add a new model (enabled through command line --cfg=network/model:SMPI)
+ that uses a piecewise linear approximation to produce better
+ results when exchanging small messages.
+ * Add a new parameter to handle correctly full duplex link and account
+ for interferences between uplink and downlink communications
+ (activate with --cfg=fullduplex:1).
+
+ SIMDAG
+ * Rename the SD_READY (all dependencies are satisfied and task is
+ scheduled) state in SD_RUNNABLE and define a new SD_SCHEDULABLE (all
+ dependencies are satisfied) state.
+ This prevents a confusion between the notion of "ready to schedule"
+ (SD_SCHEDULABLE) used in DAG scheduling and that of "ready to be
+ simulated" (SD_RUNNABLE) used by the simulation kernel.
+ * Change the way a task is considered as ready. Instead of removing
+ dependencies when a task is done, a counter is decreased. This way,
+ it is always possible to reach ancestors thanks to the
+ SD_taks_get_parents function (even after the end of the simulation.)
+ * Change the return type of SD_Simulate from (SD_task_t*) into
+ xbt_dynar_t. This function was in handling a dynar internally and
+ converted it into a NULL terminated array for historical reasons.
+ * New function SD_dotload(char*) to load a DAG described in dot
+ format. This loader and the corresponding examples require the
+ installation of the graphviz library.
+ * Fix a bug in the management of tasks of size 0 in the surf network
+ models. This problem was only visible with SIMDAG and you should
+ thus disregard results produced with earlier versions if you
+ relied on this feature (some tasks were blocked because of this).
+ * Fix a bunch of stuff that prevented to use classical models with SIMDAG
+ even though your applications were doing only point-to-point
+ communications and sequential computations. Now you can really use any
+ model you want (of course, if you create real parallel tasks, which are
+ not implemented in most models beside ptaskL07, this will abort).
+ * Add an example that schedules a DAX on an heterogeneous platform
+ using a Min-Min strategy.
+ * New function SD_workstation_get_current_task() that returns the kind
+ of task currently running on a workstation in the sequential access
+ mode.
+ * Raise some warnings when unexecuted tasks remains at the end of the
+ simulation. This is usually caused by cycles in the DAG.
+
+ SIMIX
+ * New function: SIMIX_process_set_function() called by MSG_set_function
+ * Change the underlying waiting queue in semaphores so that a process
+ can wait on several of them simultaneously (as in waitany).
+ * Fix the way to handle tokens in semaphores so that all access patterns
+ work: {acquire, acquire_timeout, waitany} / {release, release_forever}.
+ * kill the dirty pimple SIMIX_message_sizes_output()
+ Please use (proper) visualization instead
+
+ XBT
+ * New data container: setset (set of sets of elements)
+ * New module: mmalloc (mapped malloc, allowing to have several
+ independent segments of malloc)
+ * New function: xbt_dict_cursor_set_data()
+ * New functions: xbt_dynar_sort(), xbt_dynar_compare()
+ * New function: xbt_dynar_is_empty()
+ * New function: xbt_fifo_get_last_item()
+ * Fix xbt_dynar_shrink(): use the right element size.
+ * Fix xbt_dynar_set*(): allow index larger than current size and memset 0
+ uninitialized areas during expand.
+ * Fix semaphores: previous implementation was severely broken.
+ * Use library init/fini functions for our initialization.
+ - you can use logs and other feature as soon as you want in your
+ code (even before the xbt_init / MSG_init)
+ - xbt_exit is now a no-op and produce a warning when used.
+
+ GRAS:
+ * Port GRAS to new SIMIX mechanisms. This allows gras users to
+ benefit from the latest improvement to the simulation kernel.
+ * Kill measurement sockets for now. If you rely on them, sorry. This
+ release is not for you. This feature will be reintroduced in the
+ future, but we cannot delay the release any further.
+ * New function: gras_msgtype_get_name().
+ * Implement gras_agent_spawn in RL too (the prototype changed a bit)
+ * Fix (at last) the pmm example: it should not randomly fail anymore.
+
+ Build chain: bug fixes and overall polishing
+ * Cmake is now stable enough. Hence, we killed the autotools.
+ * Port to windows ( TM :)
+ * Fix the 'make install' target.
+ No need to use 'make install-simgrid' anymore
+ * Introduce a 'make dist' target compiling a *source* archive
+ 'make package' compiles a binary archive
+ * Compile java files only on need
+ * Add --cd and --setenv command line options to tesh
+ * Out of source builds are not fully supported yet, but we are close
+ * Enable supernovae and optimization flags by default for our users
+
+ LUA Bindings
+ * Add layer to set up environment directly from lua, without XML.
+ * The effect of gras_stub_generator can be achieved through
+ lua too (check examples/gras/console/ping_generator.lua)
+
+ -- Wed, 01 Dec 2010 22:09:23 +0100 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>