X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/502c1fb7b48f799d36d2ee04d978b3bb54fb0d00..e01bb6df079136f66209073063a45a261260dff3:/ChangeLog

diff --git a/ChangeLog b/ChangeLog
index b28bb47032..d4608fca38 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,7 +2,22 @@ SimGrid (3.6) unstable; urgency=low
 
  MSG
  * Change the prototypes of action replay. Sorry for inconvenience,
-   but this is really more efficient this way.
+   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 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 you send.
 
  SURF
  * New model for multi-core CPUs. You can now use the core attribute to
@@ -20,16 +35,35 @@ SimGrid (3.6) unstable; urgency=low
    combine Vivaldi based latencies with last-mile platforms.
 
  Simix
- * Completely rewrote this module to allow parallel execution.
  * Introduce a new context factory "raw", highly inspirated from the
-   context factory, but using manually crafted functions in assembly to
+   ucontext factory, but using manually crafted functions in assembly to
    do the work in an efficient manner.
+ * Allow to change the used context factory at run time, not only at
+   compilation time. Use --cfg=contexts/factory:raw for maximal speed.
+ * Add an option --cfg=contexts/stacksize:N to set the stack size of the user
+   contextes at runtime (only with raw contexts or ucontexts).
+ * Completely rewrote this module to allow parallel execution of user
+   processes. Use --cfg=contexts/nthreads:N to execute user processes
+   with N parallel threads (the default is 1, meaning no parallelism).
+ * Allow to decide dynamically between sequential and parallel modes.
+   When nthreads > 1, you can use --cfg=contexts/threshold:P to run the user
+   processes in parallel only when their number is greater than or equal to P.
 
  XBT
+ * New command line option: if you pass --cfg=verbose-exit:0, SimGrid
+   won't output the state of processes when interrupted with Ctrl-C
  * Add a new function xbt_dynar_to_array that transforms a dynar into a
    NULL-terminated array. This may solve backward compatibility issues
    due to the change to return type of SD_Simulate. See also:
    http://lists.gforge.inria.fr/pipermail/simgrid-user/2010-December/002206.html
+ * Add new macros with variable number of arguments.
+   - in xbt/log.h: XBT_DEBUG, XBT_VERB, XBT_INFO, etc.
+   - in xbt/asserts.h: xbt_assert
+   - in xbt/cunit.h: xbt_test_{add,fail,assert,log}
+   - in xbt/ex.h: THROWF and RETHROWF.
+   Define XBT_USE_DEPRECATED if you want to use the old numbered macros like
+   INFO1, INFO2, etc.
+ * Change xbt_die() to accept a format string with arguments, just like printf.
 
  INSTR
  * New configuration options
@@ -49,6 +83,16 @@ SimGrid (3.6) unstable; urgency=low
    these options generate traces that are suited to gantt-charts, such as the space-time view of Paje
  * The experimental option tracing/msg/volume is deprecated
    its functionality may be reincorporated if needed
+   
+ Build Infrastructure
+ * Define a SIMGRID_VERSION macro in simgrid_config.h.
+   - We are trying hard to keep the API stable, but it may happen that
+     some things change (we're a research project after all, not a
+     nuclear plant operating system). If such things should happen, you
+     could rely on that macro to adapt.
+   - current value: 30600 for 3.06.00, aka 3.6
+ * Define macro MAKE_SIMGRID_VERSION(major, minor, patch) to help building
+   a number that can be compared with SIMGRID_VERSION.
 
  -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>