March 2019 - mpiwg-p2p - mailman3.cels.anl.gov

Fwd: [mpiwg-p2p/p2p-issues] nonblocking sendrecv (#2)
by HOLMES Daniel 07 Mar '19

07 Mar '19

Hi all, Brandon has created a proposal for adding nonblocking and persistent versions of the send & receive operations. I've made his branch into PR#104: https://github.com/mpi-forum/mpi-standard/pull/104 and linked it to issue#125: https://github.com/mpi-forum/mpi-issues/issues/125 This seems like a straightforward addition. Does anyone want to speak for or against it? Cheers, Dan. — Dr Daniel Holmes PhD Applications Consultant in HPC Research d.holmes(a)epcc.ed.ac.uk<mailto:[email protected]> Phone: +44 (0) 131 651 3465 Mobile: +44 (0) 7940 524 088 Address: Room 2.09, Bayes Centre, 47 Potterrow, Central Area, Edinburgh, EH8 9BT — The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. — Begin forwarded message: From: brandongc <notifications(a)github.com<mailto:[email protected]>> Subject: Re: [mpiwg-p2p/p2p-issues] nonblocking sendrecv (#2) Date: 7 March 2019 at 14:30:36 GMT-5 To: mpiwg-p2p/p2p-issues <p2p-issues(a)noreply.github.com<mailto:[email protected]>> Cc: Dan Holmes <d.holmes(a)epcc.ed.ac.uk<mailto:[email protected]>>, Comment <comment(a)noreply.github.com<mailto:[email protected]>> Reply-To: mpiwg-p2p/p2p-issues <reply+00c7fc4a534cb053f20f2bf3a7aba650b325aef1914a356d92cf000000011899335c92a169ce18ea9c74(a)reply.github.com<mailto:reply+00c7fc4a534cb053f20f2bf3a7aba650b325aef1914a356d92cf000000011899335c92a169ce18ea9c74@reply.github.com>> I have made a branch "nonblocking-sendrecv" under mpiwg-ptp/mpi-standard — You are receiving this because you commented. Reply to this email directly, view it on GitHub<https://github.com/mpiwg-p2p/p2p-issues/issues/2#issuecomment-470662038>, or mute the thread<https://github.com/notifications/unsubscribe-auth/AMf8StbRl0EBQUL5TWi4QLiHo…>. The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.

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Re: [mpiwg-p2p] [mpiwg-p2p/p2p-issues] nonblocking sendrecv (#2)
by Bland, Wesley 07 Mar '19

07 Mar '19

It seems that Brandon already has access. Does something need to happen here? On Mar 6, 2019, at 10:30 PM, HOLMES Daniel <d.holmes(a)epcc.ed.ac.uk<mailto:[email protected]>> wrote: Hi Brandon, Thanks for volunteering! do I need some additional permissions somewhere? Wesley (cc'd) can give you access to the private MPI Forum Github repo. I think there is merit in this suggestion for a nonblocking and persistent versions of MPI_Sendrecv and MPI_Sendrecv_replace. I’m forwarding this to the point-to-point working group email list so that others have a chance to see it and comment. Cheers, Dan. — Dr Daniel Holmes PhD Applications Consultant in HPC Research d.holmes(a)epcc.ed.ac.uk<mailto:[email protected]> Phone: +44 (0) 131 651 3465 Mobile: +44 (0) 7940 524 088 Address: Room 2.09, Bayes Centre, 47 Potterrow, Central Area, Edinburgh, EH8 9BT — The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. — On 6 Mar 2019, at 16:58, brandongc <notifications(a)github.com<mailto:[email protected]>> wrote: I would like to propose adding a nonblocking sendrecv. This is different from MPI_ISEND + MPI_IRECV + MPI_WAITALL in that 1 fewer request is involved and is far more convenient for developers who wish to convert blocking code to nonblocking. Additionally there are not persistent versions currently. At a minimum I would like to add: * MPI_ISENDRECV * MPI_ISENDRECV_REPLACE Persistent versions would involve adding: * MPI_SENDRECV_INIT * MPI_SENDRECV_REPLACE_INIT If people think it is a good idea I can to put the relevant text together in a branch. Is there a place for that under https://github.com/mpiwg-p2p? or do I need some additional permissions somewhere? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub<https://github.com/mpiwg-p2p/p2p-issues/issues/2>, or mute the thread<https://github.com/notifications/unsubscribe-auth/AMf8SlzVVrmODDXqZhANWSkeu…>. The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.

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Re: [mpiwg-p2p] [mpiwg-p2p/p2p-issues] nonblocking sendrecv (#2)
by HOLMES Daniel 06 Mar '19

06 Mar '19

Hi Brandon, Thanks for volunteering! do I need some additional permissions somewhere? Wesley (cc'd) can give you access to the private MPI Forum Github repo. I think there is merit in this suggestion for a nonblocking and persistent versions of MPI_Sendrecv and MPI_Sendrecv_replace. I’m forwarding this to the point-to-point working group email list so that others have a chance to see it and comment. Cheers, Dan. — Dr Daniel Holmes PhD Applications Consultant in HPC Research d.holmes(a)epcc.ed.ac.uk<mailto:[email protected]> Phone: +44 (0) 131 651 3465 Mobile: +44 (0) 7940 524 088 Address: Room 2.09, Bayes Centre, 47 Potterrow, Central Area, Edinburgh, EH8 9BT — The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. — On 6 Mar 2019, at 16:58, brandongc <notifications(a)github.com<mailto:[email protected]>> wrote: I would like to propose adding a nonblocking sendrecv. This is different from MPI_ISEND + MPI_IRECV + MPI_WAITALL in that 1 fewer request is involved and is far more convenient for developers who wish to convert blocking code to nonblocking. Additionally there are not persistent versions currently. At a minimum I would like to add: * MPI_ISENDRECV * MPI_ISENDRECV_REPLACE Persistent versions would involve adding: * MPI_SENDRECV_INIT * MPI_SENDRECV_REPLACE_INIT If people think it is a good idea I can to put the relevant text together in a branch. Is there a place for that under https://github.com/mpiwg-p2p? or do I need some additional permissions somewhere? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub<https://github.com/mpiwg-p2p/p2p-issues/issues/2>, or mute the thread<https://github.com/notifications/unsubscribe-auth/AMf8SlzVVrmODDXqZhANWSkeu…>. The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.

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