1 SimGrid (2.91) unstable; urgency=low
3 * Bug fix in the lmm_solver.
4 * Interface to Paje (see http://www-id.imag.fr/Logiciels/paje/) through the function
6 * Introducing two new functions MSG_process_kill() and MSG_process_killall().
7 * It is possible to bound the rate of a communication in MSG with
8 MSG_task_put_bounded() (was already in the previous version but I had forgotten
9 to write it in the changelog).
13 SimGrid (2.90) unstable; urgency=low
15 * It is a long time since the last release of SimGrid. I'm sorry about
16 that but as I had told you, I was rewriting a lot of things. I apologize
17 to those who had been reporting bugs to me and that I had not answered.
18 If your bug is still in the new version, please tell me. Here is a
19 summary of the main changes.
21 * REVOLUTION 1: The SimGrid project has merged with the GRAS project
22 lead by Martin Quinson. As a consequence SimGrid gains a lot in
23 portability, speed, and a lot more but you'll figure it out later.
24 SimGrid now comprises 3 different projects : MSG, GRAS and SMPI.
25 I wanted to release the new MSG as soon as possible and I have
26 broken GRAS, which is the reason why, for now, only MSG is fully
27 functionnal. A laconic description of these projects is available
30 * REVOLUTION 2: I have removed SG and I am now using a new simulation
31 kernel optimized for our needs (called SURF but only the developers
32 should use it). Hence, MSG is now roughly 30 times faster and I think
33 that by rewriting a little bit MSG, I could event speed it up a little
34 bit more. Beside the gain in speed, it is also much easier to encode a
35 new platform model with SURF than it was with SG. More to come...
37 * REVOLUTION 3: I have tried to change a little as possible the API of
38 MSG but a few things really had to disappear. The main differences
39 with the previous version are :
40 1) no more m_links_t and the corresponding functions. Platforms are
41 directly read from a XML description and cannot be hard-coded
42 anymore. The same format is used for application deployment
43 description. The new format is described in the documentation.
44 Have a look in tools/platform_generation. There is a tiny script
45 that converts from the old platform format to the new one. Concerning
46 the application deployment format, parsing the old one is tricky.
47 I think most of you should hower be able to convert your files. If
48 it is really an issue, I can write a C code that does the conversion.
50 2) the toolbox tbx does not exist anymore. We now have a library
51 with much more data-structures but without the hash-tables (we have
52 dictionaries that are much faster).
54 -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 31 Jan 2005 10:45:53 -0800