[Mpi3-hybridpm] forum meeting in Atlanta

[Supalov, Alexander]

Thanks. Is the current proposal contained in https://svn.mpi-forum.org/trac/mpi-forum-web/attachment/wiki/MPI3Hybrid/hybrid-V5.2.pdf ? When do you expect an update? Is it possible to get the source of the document? Kind of hard to fix typos in a PDF file.

-----Original Message-----
From: mpi3-hybridpm-bounces at lists.mpi-forum.org [mailto:mpi3-hybridpm-bounces at lists.mpi-forum.org] On Behalf Of Snir, Marc
Sent: Friday, January 29, 2010 4:53 AM
To: mpi3-hybridpm at lists.mpi-forum.org
Subject: [Mpi3-hybridpm] forum meeting in Atlanta

I presented the current Hybrid proposal. 

1. Overall, there was agreement to continue in this path -- no opposition was expressed.
2. Arguments were made in favor of preserving MPI_COMM_WORLD to have one endpoint per process, so that existing codes that use MPI_COMM_WORLD will run unchanged. Most people preferred this choice in a straw vote.
3. There were various suggestions for minor changes in various parts of the document -- I plan to incorporate them within a week or two. E.g., memory windows will be endpoint private (since they may use memory associated with the endpoint, when the endpoint correspond to an adapter); requests will be endpoint private; endpoint query functions have to be added; etc.
4. The point was made that we need to discuss the design soon with the UPC/CAF community. Will do that after I clean up the proposal.

I gave a brief presentation on the helper thread idea. Nobody expressed a strong opinion, one way or another. I guess we need to continue evolving it. (I presented only the option of grouping endpoints(.

Marc Snir





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