[Mpi3-ft] Topics for next telecon
bronevetsky1 at llnl.gov
Wed Jun 10 20:00:44 CDT 2009
For the next telecon I propose that we address the following topics.
- The piggybacking proposal was considered by the FT group several
months ago but then got lost in a limbo between the FT group and the
tools group. We need to discuss this proposal and the issues behind
it so that we can figure out how to make progress on it.
- During the face-to-face discussion we began talking about the
desired error notification semantics for collectives. The question
is: are MPI implementations allowed to provide no error notification
as part of their collectives, relying on calls to MPI_Validate for
this functionality or do we expect them to report all relevant
errors. In particular, is MPI_Barrier responsible for reporting
failures of any members of the communicator or is it allowed to
mis-behave in the event of failures and for example, return
successfully even if one process failed before calling MPI_Barrier?
If so, how do we bound the limit of such mis-behaviors?
Lawrence Livermore National Lab
bronevetsky at llnl.gov
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