X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/7055c70d0031dff72122cafc9e194793aa018010..dbef7c8c348e6873167124b5e78ebef2d5b0f7bd:/ChangeLog

diff --git a/ChangeLog b/ChangeLog
index cdec396959..7e8cb6c543 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,19 +1,80 @@
 SimGrid (3.3-cvs) unstable; urgency=low
 
- Introduce the SIMIX module: factorize code between MSG and GRAS.
-   Until now, GRAS were using MSG as an interface to SURF. It was
-   quite difficult because both interface have several differences
-   (MSG channels vs GRAS sockets were the most notable point).
-   This also opens the gate to SMPI, which should occur soon.
-   
- DO NOT MIX 3.2 RESULTS WITH 3.3 ONES: Simix may changes simulations
-   The point is that events occuring 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.
-   Sorry for the inconvenience.
-
  OVERALL CHANGES:
+
+  * JAVA BINDINGS for MSG (you dreamt of them? We made them)
+    [Malek Cherier & Mt]
+
+  * Introduce the SIMIX module: factorize code between MSG and GRAS.
+    [Bruno Donassolo]
+  
+    Until now, GRAS were using MSG as an interface to SURF. It was
+    quite difficult because both interface have several differences
+    (MSG channels vs GRAS sockets were the most notable point).
+   
+    This also opens the gate to SMPI (which should occur soon) and speed
+    up simulations by to 40% (even if it were not the main goal).
+  
+    ************************************** 
+    *DO NOT MIX 3.2 RESULTS WITH 3.3 ONES* Simix may changes simulations!
+    **************************************
+    The point is that events occuring 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. Sorry for the inconvenience.
+  
+  * Improve the testing infrastructure with tesh. Now a very large part of
+    the code is tested not only by being run but also by checking that the
+    output match an expected output [Mt].
+
+  * Move on to FleXML v1.7 for the embeeded XML parsers. This version
+    is really less memory-demanding, which should allow you to use
+    larger files in SimGrid [AL].
+
+ GRAS:
+  * Convert the PIDs from long int to int to match the MSG ones (and
+    linux ones too) [Mt]
+  * New function: gras_agent_spawn() to launch a new process on
+    current host. Only working in simulation for now. [Mt]
+  * New function: gras_os_hostport() returning a constant form (ie,
+    not needing to be freed) of "gras_os_hostname():gras_os_myport()"
+
+ XBT:
   * Make the backtrace of exceptions more human readable [Mt]
+  * New module: xbt/str [Mt]
+    a ton of string utility functions (split, join, printf to a newly
+    allocated buffer, trim, etc)
+  * New module: xbt/synchro [Mt]
+    synchronization tools (mutex and conditions) working the same way
+    in simulation and in real life (mainly useful for GRAS, but not
+    only).
+  * New module: xbt/queue [Mt]
+    classical producer/consumer synchronization scheme
+  * xbt_dynar_new_sync() creates a synchronized dynar. All access
+    (using the classical functions will get serialized) [Mt]
+
+ SURF:
+  * Cleaned many thing in surf and fixed a few bugs [AL].
+  * Add a nice command line configuration mechanism to compose models [AL].
+  * Add a new model for parallel tasks (ptask_L07) that is less buggy than
+    the previous one (KCCFLN05). It relies on something that looks like
+    a max-min sharing mechanism but cannot be written as such. A new solver
+    was thus designed [AL].
+  * Add a new solver to lmm. Based on Lagrange optimization and
+    gradient-based descent, it enables to efficiently maximise systems s.a
+  
+     sum f_i(x_i) s.t Ax<= b  with A_{i,j}>=0 and f_i a concave function.
+
+    This solver enables to propose two new network models for TCP Reno and
+    TCP Vegas based on Low's work. These models still need to be fully
+    tested though [Pedro Velho].
+
+ SIMDAG [AL]:
+  * Bug fix in SD_simulate. Now the time bound given as argument is
+    used.
+  * Use the new parallel task model (ptask_L07) as default.
+  * Use the SURF command line configuration mechanism.
+  * 0-size tasks (for synchronization) should now work.
 
  -- 
 
@@ -21,7 +82,7 @@ SimGrid (3.2) unstable; urgency=low
 
   OVERALL CHANGES:
    * Port to windows.
-     We still experience issues on this platform, but we belive that at
+     We still experience issues on this platform, but we believe that at
      least MSG is usable.
 
   GRAS API BREAKAGE (for simplification purpose, sorry):