X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/eeffed35b5daa1145f051bc93e3eb6e35d1c3a61..61520b3e8689b8a54863570d25ba4e95d4cbee56:/ChangeLog diff --git a/ChangeLog b/ChangeLog index 117b3ee4cb..73a299b8cb 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,4 +1,92 @@ -SimGrid (3.5) unstable; urgency=low +SimGrid (3.6) unstable; urgency=low + + MSG + * Change the prototypes of action replay. Sorry for inconvenience, + 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 + 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 + * Introduce a new context factory "raw", highly inspirated from the + 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 + * 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 logging macros, with variable number of arguments. Define + XBT_USE_DEPRECATED if you want to use the old macros INFO1, INFO2, etc. + + 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 + + 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 + + -- Da SimGrid team + +SimGrid (3.5) stable; urgency=medium Model Checking * New feature to any SimGrid-based simulator: Model-Checking @@ -197,7 +285,7 @@ SimGrid (3.5) unstable; urgency=low * The effect of gras_stub_generator can be achieved through lua too (check examples/gras/console/ping_generator.lua) - -- Da SimGrid team + -- Wed, 01 Dec 2010 22:09:23 +0100 Da SimGrid team SimGrid (3.4.1) stable; urgency=low