+
+
+ ******************************************
+ *DO NOT MIX 3.3.4 RESULTS WITH OLDER ONES*
+ ******************************************
+ * The new CPU model may changes simulations!
+ The point is that events occurring at the exact same timestamp
+ are not scheduled in the same order with the old and new
+ version. This may be enough to completely change the execution
+ of simulations in some cases.
+ * The new network model will change simulations!
+ This new model is more realistic than the previous one, so you
+ should consider redoing your old experiments with this model.
+ Sorry for the inconvenience.
+
+ Build System:
+ * Introduce the supernovae compilation mode
+ When compiled that way, the whole SimGrid (or almost) is put in a
+ single compilation unit and compiled in one shoot.
+ This is to help gcc which has difficulties to inline stuff from one
+ file into another.
+ The speedup seem to be above 15%, althrough more tests are needed on
+ amd64 to confirm that gain.
+
+ MSG:
+ * Port of MSG's mailbox on top of SIMIX network
+ The put/get mechanism was greatly simplified on the way.
+
+ SIMIX:
+ * New SIMIX network module. Provides:
+ - Mailbox: rendez-vous mecanism to find with who you want to speak
+ - Synchronous send/recv: easier and hopefully faster since the
+ logic is handled in the maestro process directly now
+ - Asynchronous send/recv: you dreamt of it? It's here now
+ Too bad that nobody cared enough to propagate the change to MSG.
+ * Add semaphores as SIMIX synchronization mechanism.
+
+ SimDag:
+ * new function SD_daxload(char*) to load a DAX file
+ (see http://vtcpc.isi.edu/pegasus/index.php/WorkflowGenerator)
+ * Introduce typed tasks. Specify its kind and cost at creation.
+ At scheduling, just give where it should be placed, and the cost
+ for each involved resource is automatically computed.
+ Existing constructors so far (more to come of course):
+ - SD_task_create_comm_e2e() for end-to-end communication
+ - SD_task_create_comp_seq() for sequential computation
+ Use SD_task_schedulev() / SD_task_schedulel() to schedule them.
+ * new function SD_task_dump() for debuging display
+ * new function SD_task_dotty(task,FILE*) writing to file the info
+ about the task in dotty format
+ * SD_task_dependency_exists() can now cope with having one of its
+ arguments NULL. If so, it tests whether the other argument has any
+ dependency.
+ * Add getters on list of preceding/following tasks:
+ SD_task_get_parents(task) and SD_task_get_children(task)
+ * Add getters on amount of workstations and list:
+ SD_task_get_workstation_count(t) and SD_task_get_workstation_list(t)
+ * Add getter on task kind: SD_task_get_kind(task)
+ * Update the start_time and finish_time of tasks on completion/failure
+ * Bugfix: Remove task from state swags when destroyed
+
+ GRAS:
+ * New function: void gras_cpu_burn(double flops) -- a simple CPU burner
+
+ XBT:
+ * New function: xbt_dynar_dopar(dynar,fun) to map a function over the
+ dynar with one separate thread per value of the dynar.
+ * Change the prototype of xbt_thread_create(), sorry.
+ Added a boolean parameter indicating whether we want to join this
+ thread (used in SG only for now)
+ * Implement xbt_thread_join and xbt_thread_yield in SG also.
+
+ Bug fixes:
+ * GTNetS wrappers should now be usable again (and betterly tested too)
+ * Fix a major regression from 3.2 where the timeout provided to