On 2/23/08 1:18 AM, "Greg Bronevetsky" <[email protected]> wrote:

...

Just to follow up, I think that the ³right² thing to do with respect to some sort of transactional model is to have some sort of standard way to request such communications take place ­ probably at init time. We have had such an MPI implementation running in production for several years on a multi-thousand process cluster, and the only thing that needs to be exposed to the users is the ability to turn on/off the functionality ­ all the rest is taken care of just fine within the context of the MPI 2.0 standard, and is 100% standard compliant. Cool! Can you post the API for this thing? Might be a useful thing to start from. Also, its a prototype implementation.

...

...

...

...

There is not new API, would just need to pass some sort of parameter to MPI_Init(). This is not the only place this is needed. If you want to take a look at the implementation, take a loot at http://public.lanl.gov/lampi

Rich

...

This does not deal with hints on the network ³state². Yeah, I'm not sure if such hints are valuable enough to be included in the spec. It really falls under the quality-of-service ideas what we've tossed around, so we should write up a proposal for those and see how much QoS people really want.

Greg Bronevetsky Post-Doctoral Researcher 1028 Building 451 Lawrence Livermore National Lab (925) 424-5756 [email protected]

_______________________________________________ Mpi3-ft mailing list [email protected] http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi3-ft