-SimGrid (3.7) unstable; urgency=low
-
- Dot Loader
- * Bug fix: correction of the dot file parsing with the libcgraph
-
- Windows Port
- * Fix many issues that prevented SimGrid from working
- correctly on windows (both for 32 and 64 bit architectures):
- - port win32_ucontext.c to 64 bit arch
- - now that we rely on gcc, clean xbt/log.h so that it does not
- add useless bugs that had been introduced to handle the
- borland compiler
- * Create an installer for windows with nsis(amd64 and win32)
+SimGrid (3.7) NOT RELEASED; urgency=low
+
+ The "Simplicity does not preceed complexity, but follows it" release.
+
+ Models:
+ * Change the correction factors used in LMM model, according to
+ the lastest experiments described in INRIA RR-7821.
+ Accuracy should be improved this way.
+ * 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
+ mechanisms from the core of the models. As a result you can now
+ specify which model to use (e.g., --cfg=network/model:LV08
+ --cfg=cpu/model:Cas01) and which optimization mode to use
+ (e.g., --cfg=network/optim:lazy --cfg=cpu/optim:TI).
+ Incompatible combinations should err at initialization. See
+ --help-models for the list of all models and optimization modes.
+ * 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. It is activated by default now in the current
+ default model, use --cfg=network/crosstraffic:0 to turn it off.
+
+ 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.
+
+ XBT:
+ * Mallocators: allow value NULL for the reset function.
+ * Dicts: new function xbt_dict_new_homogeneous(void(*)(void*)) to
+ create homogeneous dictionaries, where all the elements share the
+ same free function.
+
+ -- $date Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
+
+SimGrid (3.6.2) stable; urgency=low
+
+ The "Not coding new stuff allows to polish old things" release.
+
+ General
+ * New bindings to the NS3 packet level simulator (experimental)
+ * Use the raw (efficient) execution contextes instead of the sysv
+ (portable) ones when possible.
+ * libpcre is now mandatory in any cases since not using it led to
+ severe performance loss and possibly other issues
+ * Update the XML platforms:
+ - G5K: include the lastest machine in Nancy
+ - GridPP and LCG: new platforms
+ * Documentation was partially updated, at least (more to come)
+
+ Bug fixes, cosmetics and small improvements
+ * Free terminated processes before the end of the simulation to avoid
+ exhausting the memory of users having very dynamic amount of
+ processes.
+ * Bug fix and cosmetics about canceling non-running tasks
+ * Bug fix about the dot loader's issues when using libcgraph
+
+ Portability
+ * Create an installer for windows with nsis (amd64 and win32)
- Add an hello world project to illustrate simgrid project creation.
- - Embed libpcre into the Simgrid installer to avoid
- its compilation burden
+ - Embed libpcre into the Simgrid installer to avoid
+ its compilation burden
+ * The raw execution contextes should work on Apple now
+ * Port to Windows 64 bits
+ - Sysv contextes now have an implementation for this arch
+ - GRAS communication features now support this arch
+ * Drop support for borland compiler on windows
+ - this code was not maintained, and we kinda depend on gcc nowadays
+ * Fix portability issues on kfreebsd/gnu: build error about semaphores
+ * Fix portability issue on unstable ubuntu: linker became picky on
+ argument order
- -- `LC_ALL=C date` Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
- SIMDAG
+ -- Wed Oct 5 15:51:01 CEST 2011 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
-SimGrid (3.6.1) unstable; urgency=low
+SimGrid (3.6.1) stable; urgency=low
The "Oops, we broke Macs too" release
Portability
- * Fixed contextes detection so that raw ones are used when possible
+ * Fixed contextes detection so that raw ones are used when possible
* On Mac, do not use Posix Ucontextes with gcc v4.[1-5] since this
leads to a strange error, with user code segfaulting sometimes when
the generated code is not perfectly aligned (which is not
The Summer Release, also known as the "OMG! They Killed Kenny!" version
- Java and Ruby:
+ Java and Ruby:
* Bindings now constitute their own package, separated from the main one.
Rationale: reduce our maintainance nightmare by reducing the module coupling
- They will soon be released on their own on gforge.
+ They will soon be released on their own on gforge.
* In the meanwhile:
svn co svn://scm.gforge.inria.fr/svn/simgrid/contrib/trunk/simgrid-java
svn co svn://scm.gforge.inria.fr/svn/simgrid/contrib/trunk/simgrid-ruby
-
+
GRAS: It is not considered as stable anymore, but experimental. Sorry.
* It's not quite deprecated for now because we have no replacement,
but it may soon become the case.
combine Vivaldi based latencies with last-mile platforms.
SIMIX
+ * Added a check for NaN of IEEE754 infinite in the double entries of
+ the smx_user.c file
* 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.
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
(the default is 2).
- * Added a check for NaN of IEEE754 infinite in the double entries of
+ * Added a check for NaN of IEEE754 infinite in the double entries of
the smx_user.c file
XBT
at the tools directory (fix-paje-trace.sh) can be used to put the events
in order. We have changed the tracing so it can generate ordered timestamped
events in the final trace, but depending on the simulator (and how much time
- is simulated) that can lead to a huge memory utilization. It is desactivated
+ is simulated) that can lead to a huge memory utilization. It is desactivated
by default, but it can be activated using the --cfg=tracing/buffer:1 switch.
-
+
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
and (2) msg_size. This was changed to (1) msg_size and (2) amount of
messages. This was need for the fool willing to send more than MAXINT
bytes on quite fat pipes.
-
+
AMOK:
* Do really rename the hostmanagement module to peermanagement. [Mt]
Ie, rename functions from amok_hm_* to amok_pm_*. This breaks the API,
directly on top of SURF and provides an API rather close to the old
SG. Some old codes using SG are currently under rewrite to check that
all needful functions are provided. [Christophe Thiery]
-
+
SURF:
* Complete rewrite of the KCCFLN05 workstation model. It is now an
extension of the classical CLM03 model that gracefully handles
SURF:
* Add additionnal checkings on communications. Assert that two
communicating hosts are connected by a set of links... [AL]
-
+
MSG:
* Add additionnal checkings on channel values in communication [AL]
* New: MSG_task_get_source to see on which host a task was generated [HC]
by host. [AL]
* New: MSG_error_t MSG_task_get_from_host(m_task_t * task, int channel, m_host_t host);
waits for the first task coming from a given host.. [AL]
-
+
GRAS new functionnalities: [MQ]
* Enhance the parsing macro to allow the size of multidimentional objects
to be given thru annotations.
* New! Give the possibility to hijack the surf parser and thus bypass
MSG_create_environment and MSG_launch_application. Have a look at
examples/msg/msg_test_surfxml_bypassed.c to see how it can be done.
-
+
-- Arnaud Legrand <simgrid-devel@lists.gforge.inria.fr> Sat, 20 Aug 2005 23:25:25 -0700
SimGrid (2.96) unstable; urgency=low
- Main loop and datastructures of SURF. A cpu resource object is
functional. Surf can thus be used to create cpu's with variable
performance on which you can execute some actions.
-
+
2004-11-15 Martin Quinson
- Port to ARM. Simply added the alignment and size descriptions. Should
work, but the ARM machines are so slow that I didn't had the opportunity
