[Mpi3-hybridpm] Endpoints Proposal

Jeff Hammond jhammond at alcf.anl.gov
Wed Mar 20 05:46:19 CDT 2013

> I agree that there are cases where you would just like to use 1 MPI process
> per node with a useful threading runtime within the node. I was suggesting
> that in this case, it might be possible to use the MPI Shared Memory RMA
> interface in MPI-3 (not to use posix shm and use hybrid process/thread
> queues). Would you say that it doesn't satisfy your use case? If not, why
> not? After all, WE designed that API.

When Intel Threading Building Blocks supports interprocess+shared
memory, I'll consider answering.  What you are proposing is not
reasonable and if you thought about the implementation details for a
few minutes, you'd realize this.


Jeff Hammond
Argonne Leadership Computing Facility
University of Chicago Computation Institute
jhammond at alcf.anl.gov / (630) 252-5381

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