February 2021 - mpiwg-sessions - mailman3.cels.anl.gov

Re: [mpiwg-sessions] [EXTERNAL] Sessions/Spawn
by Wesley Bland 03 Feb '21

03 Feb '21

If that’s the solution, that’s fine. The other option is to hold MPI 4.0 if this is a showstopper. I’m not that familiar with the problem so I was trying to figure out which side this is on. Thanks, Wes > On Feb 3, 2021, at 9:18 AM, Martin Schulz <schulzm(a)in.tum.de> wrote: > > Hi Wesley, > > Sorry, we overlapped - based on the discussion we had on Monday, there is no way we can get this into MPI 4.0 the "right" way. So, the idea to put a stop-gap measure in that for now disallows certain parts, and that could be done as an errata. Hence, it would be nice to get this cleaned and ready, but I don't think we have a huge rush here. > > Martin > > > -- > Prof. Dr. Martin Schulz, Chair of Computer Architecture and Parallel Systems > Department of Informatics, TU-Munich, Boltzmannstraße 3, D-85748 Garching > Member of the Board of Directors at the Leibniz Supercomputing Centre (LRZ) > Email: schulzm(a)in.tum.de > > > > On 03.02.21, 16:16, "Bland, Wesley" <wesley.bland(a)intel.com> wrote: > > Is this something that needs to be in MPI 4.0? If so, we need to at least decide what we want to do along that path. If this can be fixed by an errata later, that’s fine. > > Thanks, > Wes > >> On Feb 3, 2021, at 9:11 AM, Pritchard Jr., Howard <howardp(a)lanl.gov> wrote: >> >> Hi Martin, >> >> I mulled this over some more and think we need to discuss the implications here further within the WG before presenting something to the forum. >> So let's hold off bringing this topic up at today's MPI forum. >> >> Howard >> >> >> On 2/2/21, 8:28 AM, "Schulz, Martin" <martin.w.j.schulz(a)tum.de> wrote: >> >> Hi Howard, >> >> Based on the discussion yesterday in the WG, should we mention this at the whole forum tomorrow and possible suggest the one sentence errata that Spawn is only of for the WPM, or is this too early? >> >> Thanks, >> >> Martin >> >> >> -- >> Prof. Dr. Martin Schulz, Chair of Computer Architecture and Parallel Systems >> Department of Informatics, TU-Munich, Boltzmannstraße 3, D-85748 Garching >> Member of the Board of Directors at the Leibniz Supercomputing Centre (LRZ) >> Email: schulzm(a)in.tum.de >> >> >> >> >> > > >

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Re: [mpiwg-sessions] [EXTERNAL] Sessions/Spawn
by Martin Schulz 03 Feb '21

03 Feb '21

Hi Wesley, Sorry, we overlapped - based on the discussion we had on Monday, there is no way we can get this into MPI 4.0 the "right" way. So, the idea to put a stop-gap measure in that for now disallows certain parts, and that could be done as an errata. Hence, it would be nice to get this cleaned and ready, but I don't think we have a huge rush here. Martin -- Prof. Dr. Martin Schulz, Chair of Computer Architecture and Parallel Systems Department of Informatics, TU-Munich, Boltzmannstraße 3, D-85748 Garching Member of the Board of Directors at the Leibniz Supercomputing Centre (LRZ) Email: schulzm(a)in.tum.de On 03.02.21, 16:16, "Bland, Wesley" <wesley.bland(a)intel.com> wrote: Is this something that needs to be in MPI 4.0? If so, we need to at least decide what we want to do along that path. If this can be fixed by an errata later, that’s fine. Thanks, Wes > On Feb 3, 2021, at 9:11 AM, Pritchard Jr., Howard <howardp(a)lanl.gov> wrote: > > Hi Martin, > > I mulled this over some more and think we need to discuss the implications here further within the WG before presenting something to the forum. > So let's hold off bringing this topic up at today's MPI forum. > > Howard > > > On 2/2/21, 8:28 AM, "Schulz, Martin" <martin.w.j.schulz(a)tum.de> wrote: > > Hi Howard, > > Based on the discussion yesterday in the WG, should we mention this at the whole forum tomorrow and possible suggest the one sentence errata that Spawn is only of for the WPM, or is this too early? > > Thanks, > > Martin > > > -- > Prof. Dr. Martin Schulz, Chair of Computer Architecture and Parallel Systems > Department of Informatics, TU-Munich, Boltzmannstraße 3, D-85748 Garching > Member of the Board of Directors at the Leibniz Supercomputing Centre (LRZ) > Email: schulzm(a)in.tum.de > > > > >

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Re: [mpiwg-sessions] [EXTERNAL] Sessions/Spawn
by Martin Schulz 03 Feb '21

03 Feb '21

OK, that makes sense. Since we pre-announced, yet, perhaps we should just briefly state the topic, but don't go into solutions and then point folks to the WG if they want to weigh in. What do you think? Martin -- Prof. Dr. Martin Schulz, Chair of Computer Architecture and Parallel Systems Department of Informatics, TU-Munich, Boltzmannstraße 3, D-85748 Garching Member of the Board of Directors at the Leibniz Supercomputing Centre (LRZ) Email: schulzm(a)in.tum.de On 03.02.21, 16:11, "Pritchard Jr., Howard" <howardp(a)lanl.gov> wrote: Hi Martin, I mulled this over some more and think we need to discuss the implications here further within the WG before presenting something to the forum. So let's hold off bringing this topic up at today's MPI forum. Howard On 2/2/21, 8:28 AM, "Schulz, Martin" <martin.w.j.schulz(a)tum.de> wrote: Hi Howard, Based on the discussion yesterday in the WG, should we mention this at the whole forum tomorrow and possible suggest the one sentence errata that Spawn is only of for the WPM, or is this too early? Thanks, Martin -- Prof. Dr. Martin Schulz, Chair of Computer Architecture and Parallel Systems Department of Informatics, TU-Munich, Boltzmannstraße 3, D-85748 Garching Member of the Board of Directors at the Leibniz Supercomputing Centre (LRZ) Email: schulzm(a)in.tum.de

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Re: [mpiwg-sessions] [EXTERNAL] Sessions/Spawn
by Pritchard Jr., Howard 03 Feb '21

03 Feb '21

Hi Martin, I mulled this over some more and think we need to discuss the implications here further within the WG before presenting something to the forum. So let's hold off bringing this topic up at today's MPI forum. Howard On 2/2/21, 8:28 AM, "Schulz, Martin" <martin.w.j.schulz(a)tum.de> wrote: Hi Howard, Based on the discussion yesterday in the WG, should we mention this at the whole forum tomorrow and possible suggest the one sentence errata that Spawn is only of for the WPM, or is this too early? Thanks, Martin -- Prof. Dr. Martin Schulz, Chair of Computer Architecture and Parallel Systems Department of Informatics, TU-Munich, Boltzmannstraße 3, D-85748 Garching Member of the Board of Directors at the Leibniz Supercomputing Centre (LRZ) Email: schulzm(a)in.tum.de

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Sessions WG meetings for February
by Pritchard Jr., Howard 01 Feb '21

01 Feb '21

Hi All, A number of us are very busy with MPI 4.0 standard finalization. So, at today’s meeting we decided to cancel the reset of the WG meetings for February and resume in March. We may schedule some longer zoom sessions in March to make progress on bubbles. Thanks, Howard -- Howard Pritchard HPC-ENV Los Alamos National Laboratory

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Sessions WG - meet today
by Pritchard Jr., Howard 01 Feb '21

01 Feb '21

HI All, Let’s meet today. Two items currently on the agenda: * Addition of a new process set – mpi://MPI_COMM_PARENT to sessions * Continue the use cases for Martin Schneider’s application Howard -- Howard Pritchard HPC-ENV Los Alamos National Laboratory

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