X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/1ffdd396453f2191ace53c1e714e88d292fcad6b..8cd3936c33b4d66eaf5dd3bdb944d72603e87c37:/ChangeLog

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 SimGrid (3.6) unstable; urgency=low
 
+ MSG
+ * Change the prototypes of action replay. Sorry for inconvenience,
+   but this is really more efficient this way.
+ * Kill the braindead MSG_task_refcount_dec() function. I guess nobody
+   ever managed to do anything useful with it.
+
+ SURF
+ * New model for multi-core CPUs. You can now use the core attribute to
+   precise the number of cores of a host. This is a basic model. Every
+   process running on the host receive at most the power provided in
+   the DTD (throughput<=power). Total throughput of process cannot exceed
+   power * num_cores.
+ * New peer tag. This peer tag creates a tiny AS comprising a host and a
+   router linked by an up-link and a down-link (possibly asymmetrical).
+   This kind of pattern allows to easily build last-mile model style platforms.
+   Aggregating such patterns in a rule-based AS is thus the technique of
+   choice for modeling large peer-to-peer/volunteer computing/cloud platforms.
+ * New model for Vivaldi routing. We transformed the Vivaldi network model
+   into a Vivaldi routing model (based on the rule-based model). This allows to
+   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
+   do the work in an efficient manner.
+ * Allow to change the used context factory at run time, not only at
+   compilation time. Use --cfg=simix/context:raw for maximal speed.
+
+ XBT
+ * 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
+
+ INSTR
+ * New configuration options
+   Options triva/categorized and triva/uncategorized can be used to generate
+   graph configuration files for Triva visualization tool.
+ * Configuration option tracing/platform is renamed to tracing/categorized
+ * XBT logging makes tracing error checks easier, new root log hierarchy: instr
+ * New TRACE_user_link_variable interface:
+   User provides the name of the link and the tracing variable to attach to it
+ * the declaration of tracing categories must be done after the environment creation
+ * simpler tracing interface, just one way to declare categories
+    TRACE_category or TRACE_category_with_color, it is up to you
+ * links in the trace file are again identified by their names
+ * trace contains the full platform hierarchy exactly as declared using the ASes
+ * Options tracing/msg/[task|process]:1 groups the process by hosts
+   for both cases, tasks and processes must have names that are unique during the simulation
+   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
+
  -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
 
 SimGrid (3.5) stable; urgency=medium