X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/2a61f9d5253f49aeb0d29bf205661e1a4cf40e69..2a659adee4b33b87ad2b9c62bd804cb367103081:/ChangeLog

diff --git a/ChangeLog b/ChangeLog
index 4356a57f17..229f2afa9d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,8 +1,19 @@
 SimGrid (3.7) NOT RELEASED; urgency=low
 
-  The "Simplicity does not preceed complexity, but follows it" release.
+  The "sprint cleanups (before spring)" 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 lastest experiments described in INRIA RR-7821. 
+    Accuracy should be improved this way.
+    (TODO: this is not true in the code, yet)
   * 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
@@ -15,15 +26,32 @@ SimGrid (3.7) NOT RELEASED; urgency=low
   * The CLM03 workstation model were 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 missleading 
-    fullduplex keyword. Use --cfg=network/crosstraffic:1. This is
-    activated by default now in the current default model.
-    
+    fullduplex keyword. It is activated by default now in the current
+    default model, use --cfg=network/crosstraffic:0 to turn it off.
+  * Experimental: new configuration option --cfg=surf/nthreads:N to run
+    analytical models in parallel with N threads (default is 1).
+  * Ongoing refactoring the model parsing to make XML files optional
+    (more work is needed here to fully achieve this goal)
+
+  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
+      to be run in parallel (raw contexts only)
+
   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.
+
   XBT:
   * Mallocators: allow value NULL for the reset function.
   * Dicts: new function xbt_dict_new_homogeneous(void(*)(void*)) to