+ 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
+
+ Model Checking
+ * New feature to any SimGrid-based simulator: Model-Checking
+ Check SIN#1 for more details.
+
+ SMPI
+ * New Model SMPI (three-interval linear regression for correction factors)
+ See RR-7426, available at http://hal.inria.fr/inria-00527150
+ * Ability to use FORTRAN MPI code (through f2c, automatically privatized)
+ * New MPI functions supported: MPI_Get_count(), MPI_Comm_split()
+ * New: RAM folding (see RR-7426 and examples/smpi/NAS/DT-folding)
+ * New: execution sampling (see RR-7426 and examples/smpi/NAS/EP-sampling)
+ * See also src/smpi/README
+
+ Tracing:
+ Tracing:
+ * Tracing system
+ - Tracing API changes: TRACE_start and TRACE_end should not be called
+ by user-code. They are automatically called by simulators created
+ with SimDAG, MSG and SMPI if the toolkit is compiled with
+ tracing_enabled=ON. Categories declaration and utilization remain the
+ same for MSG and SimDag.
+ - A function was added to the tracing API to declare categories with
+ colors:
+ - TRACE_category_with_color (char *category, char *color)
+ where color must be in the following format
+ "%f %f %f", red, green, blue
+ and red, green, blue are float values in the interval [0, 1]
+ - User can specify NULL as color parameter, or continue calling
+ TRACE_category (cat)
+ On that case, the tracing system will define random colors
+ - The following command-line options are supported:
+ --cfg=tracing/filename:msg.trace
+ --cfg=tracing:1 (activate tracing, needed to use others)
+ --cfg=tracing/platform:1 (categorized resource use)
+ --cfg=tracing/uncategorized:1 (uncategorized resource use)
+ --cfg=tracing/msg/task:1 (task creation)
+ --cfg=tracing/msg/process:1 (process creation, migration)
+ --cfg=tracing/msg/volume:1 (volume of MSG send/recv)
+ --cfg=tracing/smpi:1 (SMPI interface tracing)
+ --cfg=tracing/simdag:1 (allow SimDAG tasks receive categories)
+ - examples of examples/msg/tracing updated
+ * Tracing SimDag
+ - DAXLoader and DOTLoader functions can generate tasks with categories
+ - A new function to attribute a category to SD tasks:
+ TRACE_sd_set_task_category (SD_task_t task, char *category)
+ * Tracing the MPI interface implemented by SMPI
+ - Collective operations are traced with states
+ - Point-to-Point operations are traced with states/links
+ - Tracing activated by a parameter "-trace filename" passed
+ to smpirun during execution (considering that simgrid
+ is compiled with tracing enabled)
+ - To run the simulation with gdb, the simulator
+ accepts --cfg=tracing/smpi:1 to trace SMPI
+ - tesh files to check if smpi tracing is ok
+ - See examples/smpi/NAS/DT-trace
+ * GTNetS tracing re-worked
+ - adaptation to the tracing system of GTNets to cope
+ with modifications regarding the fullduplex mode
+ - new tesh files to check if gtnets tracing is ok