June 2008 - Mpi3-subsetting - mailman3.cels.anl.gov

Re: [Mpi3-subsetting] MPI subsetting: charting the way forward at atelecon next week?
by unknown＠example.com 20 Jun '08

20 Jun '08

Dear Dick, Thank you. I remember we exchanged a couple of emails about the possible extensions to the set of assertions, like one-sided and I/O, and in my recollection, almost reached an agreement that this can improve performance and possibly memory footprint, as well as be expressed thru assertions. Do you still feel favorable about this? Best regards. Alexander ________________________________ From: mpi3-subsetting-bounces_at_[hidden] [mailto:mpi3-subsetting-bounces_at_[hidden]] On Behalf Of Richard Treumann Sent: Thursday, June 19, 2008 9:01 PM To: MPI 3.0 Sub-setting working group Subject: Re: [Mpi3-subsetting] MPI subsetting: charting the way forward at atelecon next week? Hello to the Subset WG I appreciate the interest in my proposal for Init time assertions. Unfortunately I will not be able to come to the next Forum meeting to discuss face to face. I did write up a fairly detailed draft a few weeks back and post it on the MPI 2.2 Wiki at: http://svn.mpi-forum.org/trac/mpi-forum-web/wiki/InitTimeAssertions Maybe that will help clarify what I have in mind. My proposal does not include "hints" so I did not discuss the definition of a hint. I did try to be firm about the meaning of an assertion. Dick Treumann Dick Treumann - MPI Team/TCEM IBM Systems & Technology Group Dept 0lva / MS P963 -- 2455 South Road -- Poughkeepsie, NY 12601 Tele (845) 433-7846 Fax (845) 433-8363 --------------------------------------------------------------------- Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen Germany Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer Registergericht: Muenchen HRB 47456 Ust.-IdNr. VAT Registration No.: DE129385895 Citibank Frankfurt (BLZ 502 109 00) 600119052 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. *

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Re: [Mpi3-subsetting] MPI subsetting: charting the way forward at atelecon next week?
by unknown＠example.com 20 Jun '08

20 Jun '08

Correction: Martin Schulz (LLNL) rather than Mark. Sorry. ________________________________ From: Supalov, Alexander Sent: Thursday, June 19, 2008 7:10 PM To: 'MPI 3.0 Sub-setting working group' Subject: RE: [Mpi3-subsetting] MPI subsetting: charting the way forward at atelecon next week? Hi everybody, Thank you for your time today. Here's what we discussed: Present: Mark Schulz (LLNL), Reiner Keller (HLRS), Alexander Supalov (Intel) - Opens - Alexander is not going to be in Menlo Park, will work with Rich to find an adequate solution - Subsetting: way forward - Subsetting in its extreme form (all of the standard is composed of subsets that have user defined hierarchies, attach to opaque objects, etc.) does not seem to be terribly practicable. However, architectural influence, performance, and memory footprint aspects of subsetting warrant further research and discussion in this area. - During the discussion so far we've considered several proposals that apparently go in the subsetting direction, or at least overlap in some parts with the subsetting idea, in that they allow control of the essential aspects related to performance and memory footprint. The WG feels compelled to express their opinion about some of these ideas as follows: - Runtime - The subsetting WG supports Dick Treumann's MPI_Init time int based assertion proposal as expressed in a series of emails, and encourages creation of a full proposal, with the following notes: - The set of standard assertions should be settled and accepted by all implementors - The question of allowing or disallowing implementation specific assertions should be resolved - The distinction between assertions and hints should be formulated in a way understandable to a first time user - The matter of underlying libraries and tools in their relation to assertions should be clarified - It looks that tools that intercept the MPI_Init_* call family will be able to deal with assertions they cannot support by basically ignoring them - Layered underlying libraries are unlikely to be allowed to change assertions already in effect, or adding their own assertions on top of them. These libraries should either adapt themselves to the defined assertions, or bail out - The subsetting WG would like to see more details of Jeff Squyres' proposal on Info based data passing in and out of MPI library before it expresses its opinion, with the following notes: - The effect of setting certain internal thresholds, like eager threshold, should be considered as a collective action on all processes - Generally, the WG does not see a compelling need for assertions/hints/subsets to be attached to the communicator/window/file or other MPI entities, as this does not seem to be directly usable for performance increase or memory footprint reduction - Link time - The WG does not see the need to either specify or prohibit specific link time arrangements like various library names, versions, combinations, dynamic loading thereof, etc. The details should be left to the implementation, with the ABI and compatibility aspects in mind. - Compile time - The WG encourages Reiner Keller to produce a full proposal, minding the ABI and application/MPI compatibility aspects - Actions - Please provide feedback to these minutes by end of week - Alexander will change the proposal in the Wiki accordingly by the time of the MPI Forum meeting Best regards. Alexander ________________________________ From: Supalov, Alexander Sent: Monday, June 16, 2008 2:43 PM To: 'MPI 3.0 Sub-setting working group' Subject: RE: [Mpi3-subsetting] MPI subsetting: charting the way forward at atelecon next week? Hi everybody, Basing on the overwhelming silence, I propose that we meet on Thursday, June 19, 2008, 9:00 am PDT/noon EDT/18:00 CEST Outside Intel: +1-916-356-2663, Inside Intel: 8-356-2663, Bridge: 4, Passcode: 1459440 - Opens - Subsetting: way forward Best regards. Alexander ________________________________ From: Supalov, Alexander Sent: Friday, June 06, 2008 6:55 PM To: 'MPI 3.0 Sub-setting working group' Subject: RE: [Mpi3-subsetting] MPI subsetting: charting the way forward at atelecon next week? Hi everybody, >From the few replies I've got (thanks!), we're not going to have a quorum next week. Let's shoot for the week after that: Monday, June 16, 2008, 9:00 am PDT/noon EDT/18:00 CEST yes/no/plan B Tuesday, June 17, 2008, 9:00 am PDT/noon EDT/18:00 CEST yes/no/plan B Thursday, June 19, 2008, 9:00 am PDT/noon EDT/18:00 CEST yes/no/plan B Best regards. Alexander ________________________________ From: mpi3-subsetting-bounces_at_[hidden] [mailto:mpi3-subsetting-bounces_at_[hidden]] On Behalf Of Supalov, Alexander Sent: Tuesday, June 03, 2008 6:29 PM To: mpi3-subsetting_at_[hidden] Subject: [Mpi3-subsetting] MPI subsetting: charting the way forward at atelecon next week? Hi everybody, It looks to me that we're on subsetting crossroads at the moment. There was a lot of good analysis so far, but I'm afraid we're slow on moving towards comparably sized synthesis. On one hand, we have a rather well defined and strictly aimed proposal from Dick that might fit into MPI-2.2 framework and is somewhat related to subsetting. We also have a wider proposal from Jeff, which also has interesting repercussions in the client/MPI data exchange area, potentially usable well outside of the subsetting per se. On the other hand we have a lot of things coming into the standard in MPI-3, and still no clear way to manage this complexity and cater for special purpose MPI configurations that may be necessary for MPI to expand to new areas. Moreover, the meeting in Chicago showed that not everybody agrees that introducing flexibility or going beyond the traditional HPC is a good idea at all. On this backdrop, I'd suggest we should meet on the phone before the Forum gathering in Menlo Park, and try to develop a workable proposition how subsetting can find its way into the standard. I happen to have time for such a meeting on the following days next week: Tuesday, May 10, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B Wednesday, May 11, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B Thursday, May 12, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B Please reply as usual to me whether you can make any of these slots. Best regards. Alexander PS. This time I took special care to have a subsetting slot at the F2F meeting. :) -- Dr Alexander Supalov Intel GmbH Hermuelheimer Strasse 8a 50321 Bruehl, Germany Phone: +49 2232 209034 Mobile: +49 173 511 8735 Fax: +49 2232 209029 --------------------------------------------------------------------- Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen Germany Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer Registergericht: Muenchen HRB 47456 Ust.-IdNr. VAT Registration No.: DE129385895 Citibank Frankfurt (BLZ 502 109 00) 600119052 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. --------------------------------------------------------------------- Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen Germany Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer Registergericht: Muenchen HRB 47456 Ust.-IdNr. VAT Registration No.: DE129385895 Citibank Frankfurt (BLZ 502 109 00) 600119052 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. *

1 0

Re: [Mpi3-subsetting] MPI subsetting: charting the way forward at atelecon next week?
by unknown＠example.com 19 Jun '08

19 Jun '08

Hello to the Subset WG I appreciate the interest in my proposal for Init time assertions. Unfortunately I will not be able to come to the next Forum meeting to discuss face to face. I did write up a fairly detailed draft a few weeks back and post it on the MPI 2.2 Wiki at: http://svn.mpi-forum.org/trac/mpi-forum-web/wiki/InitTimeAssertions Maybe that will help clarify what I have in mind. My proposal does not include "hints" so I did not discuss the definition of a hint. I did try to be firm about the meaning of an assertion. Dick Treumann Dick Treumann - MPI Team/TCEM IBM Systems & Technology Group Dept 0lva / MS P963 -- 2455 South Road -- Poughkeepsie, NY 12601 Tele (845) 433-7846 Fax (845) 433-8363 *

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Re: [Mpi3-subsetting] MPI subsetting: charting the way forward at atelecon next week?
by unknown＠example.com 19 Jun '08

19 Jun '08

Hi everybody, Thank you for your time today. Here's what we discussed: Present: Mark Schulz (LLNL), Reiner Keller (HLRS), Alexander Supalov (Intel) - Opens - Alexander is not going to be in Menlo Park, will work with Rich to find an adequate solution - Subsetting: way forward - Subsetting in its extreme form (all of the standard is composed of subsets that have user defined hierarchies, attach to opaque objects, etc.) does not seem to be terribly practicable. However, architectural influence, performance, and memory footprint aspects of subsetting warrant further research and discussion in this area. - During the discussion so far we've considered several proposals that apparently go in the subsetting direction, or at least overlap in some parts with the subsetting idea, in that they allow control of the essential aspects related to performance and memory footprint. The WG feels compelled to express their opinion about some of these ideas as follows: - Runtime - The subsetting WG supports Dick Treumann's MPI_Init time int based assertion proposal as expressed in a series of emails, and encourages creation of a full proposal, with the following notes: - The set of standard assertions should be settled and accepted by all implementors - The question of allowing or disallowing implementation specific assertions should be resolved - The distinction between assertions and hints should be formulated in a way understandable to a first time user - The matter of underlying libraries and tools in their relation to assertions should be clarified - It looks that tools that intercept the MPI_Init_* call family will be able to deal with assertions they cannot support by basically ignoring them - Layered underlying libraries are unlikely to be allowed to change assertions already in effect, or adding their own assertions on top of them. These libraries should either adapt themselves to the defined assertions, or bail out - The subsetting WG would like to see more details of Jeff Squyres' proposal on Info based data passing in and out of MPI library before it expresses its opinion, with the following notes: - The effect of setting certain internal thresholds, like eager threshold, should be considered as a collective action on all processes - Generally, the WG does not see a compelling need for assertions/hints/subsets to be attached to the communicator/window/file or other MPI entities, as this does not seem to be directly usable for performance increase or memory footprint reduction - Link time - The WG does not see the need to either specify or prohibit specific link time arrangements like various library names, versions, combinations, dynamic loading thereof, etc. The details should be left to the implementation, with the ABI and compatibility aspects in mind. - Compile time - The WG encourages Reiner Keller to produce a full proposal, minding the ABI and application/MPI compatibility aspects - Actions - Please provide feedback to these minutes by end of week - Alexander will change the proposal in the Wiki accordingly by the time of the MPI Forum meeting Best regards. Alexander ________________________________ From: Supalov, Alexander Sent: Monday, June 16, 2008 2:43 PM To: 'MPI 3.0 Sub-setting working group' Subject: RE: [Mpi3-subsetting] MPI subsetting: charting the way forward at atelecon next week? Hi everybody, Basing on the overwhelming silence, I propose that we meet on Thursday, June 19, 2008, 9:00 am PDT/noon EDT/18:00 CEST Outside Intel: +1-916-356-2663, Inside Intel: 8-356-2663, Bridge: 4, Passcode: 1459440 - Opens - Subsetting: way forward Best regards. Alexander ________________________________ From: Supalov, Alexander Sent: Friday, June 06, 2008 6:55 PM To: 'MPI 3.0 Sub-setting working group' Subject: RE: [Mpi3-subsetting] MPI subsetting: charting the way forward at atelecon next week? Hi everybody, >From the few replies I've got (thanks!), we're not going to have a quorum next week. Let's shoot for the week after that: Monday, June 16, 2008, 9:00 am PDT/noon EDT/18:00 CEST yes/no/plan B Tuesday, June 17, 2008, 9:00 am PDT/noon EDT/18:00 CEST yes/no/plan B Thursday, June 19, 2008, 9:00 am PDT/noon EDT/18:00 CEST yes/no/plan B Best regards. Alexander ________________________________ From: mpi3-subsetting-bounces_at_[hidden] [mailto:mpi3-subsetting-bounces_at_[hidden]] On Behalf Of Supalov, Alexander Sent: Tuesday, June 03, 2008 6:29 PM To: mpi3-subsetting_at_[hidden] Subject: [Mpi3-subsetting] MPI subsetting: charting the way forward at atelecon next week? Hi everybody, It looks to me that we're on subsetting crossroads at the moment. There was a lot of good analysis so far, but I'm afraid we're slow on moving towards comparably sized synthesis. On one hand, we have a rather well defined and strictly aimed proposal from Dick that might fit into MPI-2.2 framework and is somewhat related to subsetting. We also have a wider proposal from Jeff, which also has interesting repercussions in the client/MPI data exchange area, potentially usable well outside of the subsetting per se. On the other hand we have a lot of things coming into the standard in MPI-3, and still no clear way to manage this complexity and cater for special purpose MPI configurations that may be necessary for MPI to expand to new areas. Moreover, the meeting in Chicago showed that not everybody agrees that introducing flexibility or going beyond the traditional HPC is a good idea at all. On this backdrop, I'd suggest we should meet on the phone before the Forum gathering in Menlo Park, and try to develop a workable proposition how subsetting can find its way into the standard. I happen to have time for such a meeting on the following days next week: Tuesday, May 10, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B Wednesday, May 11, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B Thursday, May 12, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B Please reply as usual to me whether you can make any of these slots. Best regards. Alexander PS. This time I took special care to have a subsetting slot at the F2F meeting. :) -- Dr Alexander Supalov Intel GmbH Hermuelheimer Strasse 8a 50321 Bruehl, Germany Phone: +49 2232 209034 Mobile: +49 173 511 8735 Fax: +49 2232 209029 --------------------------------------------------------------------- Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen Germany Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer Registergericht: Muenchen HRB 47456 Ust.-IdNr. VAT Registration No.: DE129385895 Citibank Frankfurt (BLZ 502 109 00) 600119052 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. --------------------------------------------------------------------- Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen Germany Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer Registergericht: Muenchen HRB 47456 Ust.-IdNr. VAT Registration No.: DE129385895 Citibank Frankfurt (BLZ 502 109 00) 600119052 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. *

1 0

Re: [Mpi3-subsetting] MPI subsetting: charting the way forward at atelecon next week?
by unknown＠example.com 16 Jun '08

16 Jun '08

Sorry; was away from e-mail last week. I have a conflict and am unable to attend at noon Easter 19 June. Please don't let that hold up the teleconference; I'm just letting you know that I unfortunately can't be there. On Jun 16, 2008, at 8:42 AM, Supalov, Alexander wrote: > Hi everybody, > > Basing on the overwhelming silence, I propose that we meet on > > Thursday, June 19, 2008, 9:00 am PDT/noon EDT/18:00 CEST > Outside Intel: +1-916-356-2663, Inside Intel: 8-356-2663, Bridge: 4, > Passcode: 1459440 > - Opens > - Subsetting: way forward > > Best regards. > > Alexander > > From: Supalov, Alexander > Sent: Friday, June 06, 2008 6:55 PM > To: 'MPI 3.0 Sub-setting working group' > Subject: RE: [Mpi3-subsetting] MPI subsetting: charting the way > forward at atelecon next week? > > Hi everybody, > > From the few replies I've got (thanks!), we're not going to have a > quorum next week. Let's shoot for the week after that: > > Monday, June 16, 2008, 9:00 am PDT/noon EDT/18:00 CEST yes/no/ > plan B > Tuesday, June 17, 2008, 9:00 am PDT/noon EDT/18:00 CEST yes/no/ > plan B > Thursday, June 19, 2008, 9:00 am PDT/noon EDT/18:00 CEST yes/no/ > plan B > > Best regards. > > Alexander > > From: mpi3-subsetting-bounces_at_[hidden] [mailto:mpi3-subsetting-bounces_at_[hidden] > ] On Behalf Of Supalov, Alexander > Sent: Tuesday, June 03, 2008 6:29 PM > To: mpi3-subsetting_at_[hidden] > Subject: [Mpi3-subsetting] MPI subsetting: charting the way forward > at atelecon next week? > > Hi everybody, > > It looks to me that we're on subsetting crossroads at the moment. > There was a lot of good analysis so far, but I'm afraid we're slow > on moving towards comparably sized synthesis. > > On one hand, we have a rather well defined and strictly aimed > proposal from Dick that might fit into MPI-2.2 framework and is > somewhat related to subsetting. We also have a wider proposal from > Jeff, which also has interesting repercussions in the client/MPI > data exchange area, potentially usable well outside of the > subsetting per se. > > On the other hand we have a lot of things coming into the standard > in MPI-3, and still no clear way to manage this complexity and cater > for special purpose MPI configurations that may be necessary for MPI > to expand to new areas. Moreover, the meeting in Chicago showed that > not everybody agrees that introducing flexibility or going beyond > the traditional HPC is a good idea at all. > > On this backdrop, I'd suggest we should meet on the phone before the > Forum gathering in Menlo Park, and try to develop a workable > proposition how subsetting can find its way into the standard. > > I happen to have time for such a meeting on the following days next > week: > > Tuesday, May 10, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/ > plan B > Wednesday, May 11, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/ > no/plan B > Thursday, May 12, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/ > plan B > > Please reply as usual to me whether you can make any of these slots. > > Best regards. > > Alexander > > PS. This time I took special care to have a subsetting slot at the > F2F meeting. :) > > -- > Dr Alexander Supalov > Intel GmbH > Hermuelheimer Strasse 8a > 50321 Bruehl, Germany > Phone: +49 2232 209034 > Mobile: +49 173 511 8735 > Fax: +49 2232 209029 > > --------------------------------------------------------------------- > Intel GmbH > Dornacher Strasse 1 > 85622 Feldkirchen/Muenchen Germany > Sitz der Gesellschaft: Feldkirchen bei Muenchen > Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer > Registergericht: Muenchen HRB 47456 Ust.-IdNr. > VAT Registration No.: DE129385895 > Citibank Frankfurt (BLZ 502 109 00) 600119052 > > This e-mail and any attachments may contain confidential material for > the sole use of the intended recipient(s). Any review or distribution > by others is strictly prohibited. If you are not the intended > recipient, please contact the sender and delete all copies. > --------------------------------------------------------------------- > Intel GmbH > Dornacher Strasse 1 > 85622 Feldkirchen/Muenchen Germany > Sitz der Gesellschaft: Feldkirchen bei Muenchen > Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer > Registergericht: Muenchen HRB 47456 Ust.-IdNr. > VAT Registration No.: DE129385895 > Citibank Frankfurt (BLZ 502 109 00) 600119052 > > This e-mail and any attachments may contain confidential material for > the sole use of the intended recipient(s). Any review or distribution > by others is strictly prohibited. If you are not the intended > recipient, please contact the sender and delete all copies. > _______________________________________________ > mpi3-subsetting mailing list > mpi3-subsetting_at_[hidden] > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi3-subsetting -- Jeff Squyres Cisco Systems

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Re: [Mpi3-subsetting] MPI subsetting: charting the way forward at atelecon next week?
by unknown＠example.com 16 Jun '08

16 Jun '08

Hi everybody, Basing on the overwhelming silence, I propose that we meet on Thursday, June 19, 2008, 9:00 am PDT/noon EDT/18:00 CEST Outside Intel: +1-916-356-2663, Inside Intel: 8-356-2663, Bridge: 4, Passcode: 1459440 - Opens - Subsetting: way forward Best regards. Alexander ________________________________ From: Supalov, Alexander Sent: Friday, June 06, 2008 6:55 PM To: 'MPI 3.0 Sub-setting working group' Subject: RE: [Mpi3-subsetting] MPI subsetting: charting the way forward at atelecon next week? Hi everybody, >From the few replies I've got (thanks!), we're not going to have a quorum next week. Let's shoot for the week after that: Monday, June 16, 2008, 9:00 am PDT/noon EDT/18:00 CEST yes/no/plan B Tuesday, June 17, 2008, 9:00 am PDT/noon EDT/18:00 CEST yes/no/plan B Thursday, June 19, 2008, 9:00 am PDT/noon EDT/18:00 CEST yes/no/plan B Best regards. Alexander ________________________________ From: mpi3-subsetting-bounces_at_[hidden] [mailto:mpi3-subsetting-bounces_at_[hidden]] On Behalf Of Supalov, Alexander Sent: Tuesday, June 03, 2008 6:29 PM To: mpi3-subsetting_at_[hidden] Subject: [Mpi3-subsetting] MPI subsetting: charting the way forward at atelecon next week? Hi everybody, It looks to me that we're on subsetting crossroads at the moment. There was a lot of good analysis so far, but I'm afraid we're slow on moving towards comparably sized synthesis. On one hand, we have a rather well defined and strictly aimed proposal from Dick that might fit into MPI-2.2 framework and is somewhat related to subsetting. We also have a wider proposal from Jeff, which also has interesting repercussions in the client/MPI data exchange area, potentially usable well outside of the subsetting per se. On the other hand we have a lot of things coming into the standard in MPI-3, and still no clear way to manage this complexity and cater for special purpose MPI configurations that may be necessary for MPI to expand to new areas. Moreover, the meeting in Chicago showed that not everybody agrees that introducing flexibility or going beyond the traditional HPC is a good idea at all. On this backdrop, I'd suggest we should meet on the phone before the Forum gathering in Menlo Park, and try to develop a workable proposition how subsetting can find its way into the standard. I happen to have time for such a meeting on the following days next week: Tuesday, May 10, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B Wednesday, May 11, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B Thursday, May 12, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B Please reply as usual to me whether you can make any of these slots. Best regards. Alexander PS. This time I took special care to have a subsetting slot at the F2F meeting. :) -- Dr Alexander Supalov Intel GmbH Hermuelheimer Strasse 8a 50321 Bruehl, Germany Phone: +49 2232 209034 Mobile: +49 173 511 8735 Fax: +49 2232 209029 --------------------------------------------------------------------- Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen Germany Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer Registergericht: Muenchen HRB 47456 Ust.-IdNr. VAT Registration No.: DE129385895 Citibank Frankfurt (BLZ 502 109 00) 600119052 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. --------------------------------------------------------------------- Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen Germany Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer Registergericht: Muenchen HRB 47456 Ust.-IdNr. VAT Registration No.: DE129385895 Citibank Frankfurt (BLZ 502 109 00) 600119052 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. *

1 0

Re: [Mpi3-subsetting] MPI subsetting: charting the way forward at atelecon next week?
by unknown＠example.com 06 Jun '08

06 Jun '08

Hi everybody, >From the few replies I've got (thanks!), we're not going to have a quorum next week. Let's shoot for the week after that: Monday, June 16, 2008, 9:00 am PDT/noon EDT/18:00 CEST yes/no/plan B Tuesday, June 17, 2008, 9:00 am PDT/noon EDT/18:00 CEST yes/no/plan B Thursday, June 19, 2008, 9:00 am PDT/noon EDT/18:00 CEST yes/no/plan B Best regards. Alexander ________________________________ From: mpi3-subsetting-bounces_at_[hidden] [mailto:mpi3-subsetting-bounces_at_[hidden]] On Behalf Of Supalov, Alexander Sent: Tuesday, June 03, 2008 6:29 PM To: mpi3-subsetting_at_[hidden] Subject: [Mpi3-subsetting] MPI subsetting: charting the way forward at atelecon next week? Hi everybody, It looks to me that we're on subsetting crossroads at the moment. There was a lot of good analysis so far, but I'm afraid we're slow on moving towards comparably sized synthesis. On one hand, we have a rather well defined and strictly aimed proposal from Dick that might fit into MPI-2.2 framework and is somewhat related to subsetting. We also have a wider proposal from Jeff, which also has interesting repercussions in the client/MPI data exchange area, potentially usable well outside of the subsetting per se. On the other hand we have a lot of things coming into the standard in MPI-3, and still no clear way to manage this complexity and cater for special purpose MPI configurations that may be necessary for MPI to expand to new areas. Moreover, the meeting in Chicago showed that not everybody agrees that introducing flexibility or going beyond the traditional HPC is a good idea at all. On this backdrop, I'd suggest we should meet on the phone before the Forum gathering in Menlo Park, and try to develop a workable proposition how subsetting can find its way into the standard. I happen to have time for such a meeting on the following days next week: Tuesday, May 10, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B Wednesday, May 11, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B Thursday, May 12, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B Please reply as usual to me whether you can make any of these slots. Best regards. Alexander PS. This time I took special care to have a subsetting slot at the F2F meeting. :) -- Dr Alexander Supalov Intel GmbH Hermuelheimer Strasse 8a 50321 Bruehl, Germany Phone: +49 2232 209034 Mobile: +49 173 511 8735 Fax: +49 2232 209029 --------------------------------------------------------------------- Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen Germany Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer Registergericht: Muenchen HRB 47456 Ust.-IdNr. VAT Registration No.: DE129385895 Citibank Frankfurt (BLZ 502 109 00) 600119052 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. --------------------------------------------------------------------- Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen Germany Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer Registergericht: Muenchen HRB 47456 Ust.-IdNr. VAT Registration No.: DE129385895 Citibank Frankfurt (BLZ 502 109 00) 600119052 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. *

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Re: [Mpi3-subsetting] MPI subsetting: charting the way forward at a telecon next week?
by unknown＠example.com 04 Jun '08

04 Jun '08

Supalov, Alexander wrote: > Hi everybody, > > It looks to me that we're on subsetting crossroads at the moment. > There was a lot of good analysis so far, but I'm afraid we're slow on > moving towards comparably sized synthesis. > > On one hand, we have a rather well defined and strictly aimed proposal > from Dick that might fit into MPI-2.2 framework and is somewhat > related to subsetting. We also have a wider proposal from Jeff, > which also has interesting repercussions in the client/MPI > data exchange area, potentially usable well outside of the subsetting > per se. > > On the other hand we have a lot of things coming into the standard in > MPI-3, and still no clear way to manage this complexity and cater for > special purpose MPI configurations that may be necessary for MPI to > expand to new areas. Moreover, the meeting in Chicago showed that not > everybody agrees that introducing flexibility or going beyond the > traditional HPC is a good idea at all. > > On this backdrop, I'd suggest we should meet on the phone before the > Forum gathering in Menlo Park, and try to develop a workable > proposition how subsetting can find its way into the standard. > > I happen to have time for such a meeting on the following days next week: > > Tuesday, May 10, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B No > Wednesday, May 11, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT > yes/no/plan B No > Thursday, May 12, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT > yes/no/plan B Yes. --td > > Please reply as usual to me whether you can make any of these slots. > > Best regards. > > Alexander > > PS. This time I took special care to have a subsetting slot at the F2F > meeting. :) > > -- > Dr Alexander Supalov > Intel GmbH > Hermuelheimer Strasse 8a > 50321 Bruehl, Germany > Phone: +49 2232 209034 > Mobile: +49/ /173 511 8735 > Fax: +49 2232 209029 > > --------------------------------------------------------------------- > Intel GmbH > Dornacher Strasse 1 > 85622 Feldkirchen/Muenchen Germany > Sitz der Gesellschaft: Feldkirchen bei Muenchen > Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer > Registergericht: Muenchen HRB 47456 Ust.-IdNr. > VAT Registration No.: DE129385895 > Citibank Frankfurt (BLZ 502 109 00) 600119052 > > This e-mail and any attachments may contain confidential material for > the sole use of the intended recipient(s). Any review or distribution > by others is strictly prohibited. If you are not the intended > recipient, please contact the sender and delete all copies. > > ------------------------------------------------------------------------ > > _______________________________________________ > mpi3-subsetting mailing list > mpi3-subsetting_at_[hidden] > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi3-subsetting >

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Re: [Mpi3-subsetting] MPI subsetting: charting the way forward at a telecon next week?
by unknown＠example.com 03 Jun '08

03 Jun '08

Next week does not work for me at all. Rich On 6/3/08 12:29 PM, "Supalov, Alexander" <alexander.supalov_at_[hidden]> wrote: > Hi everybody, > > It looks to me that we're on subsetting crossroads at the moment. There was a > lot of good analysis so far, but I'm afraid we're slow on moving towards > comparably sized synthesis. > > On one hand, we have a rather well defined and strictly aimed proposal from > Dick that might fit into MPI-2.2 framework and is somewhat related to > subsetting. We also have a wider proposal from Jeff, which also has > interesting repercussions in the client/MPI data exchange area, potentially > usable well outside of the subsetting per se. > > On the other hand we have a lot of things coming into the standard in MPI-3, > and still no clear way to manage this complexity and cater for special purpose > MPI configurations that may be necessary for MPI to expand to new areas. > Moreover, the meeting in Chicago showed that not everybody agrees that > introducing flexibility or going beyond the traditional HPC is a good idea at > all. > > On this backdrop, I'd suggest we should meet on the phone before the Forum > gathering in Menlo Park, and try to develop a workable proposition how > subsetting can find its way into the standard. > > I happen to have time for such a meeting on the following days next week: > > Tuesday, May 10, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B > Wednesday, May 11, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B > Thursday, May 12, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B > > Please reply as usual to me whether you can make any of these slots. > > Best regards. > > Alexander > > PS. This time I took special care to have a subsetting slot at the F2F > meeting. :) > > -- > Dr Alexander Supalov > Intel GmbH > Hermuelheimer Strasse 8a > 50321 Bruehl, Germany > Phone: +49 2232 209034 > Mobile: +49 173 511 8735 > Fax: +49 2232 209029 > > --------------------------------------------------------------------- > Intel GmbH > Dornacher Strasse 1 > 85622 Feldkirchen/Muenchen Germany > Sitz der Gesellschaft: Feldkirchen bei Muenchen > Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer > Registergericht: Muenchen HRB 47456 Ust.-IdNr. > VAT Registration No.: DE129385895 > Citibank Frankfurt (BLZ 502 109 00) 600119052 > > This e-mail and any attachments may contain confidential material for > the sole use of the intended recipient(s). Any review or distribution > by others is strictly prohibited. If you are not the intended > recipient, please contact the sender and delete all copies. > > > _______________________________________________ > mpi3-subsetting mailing list > mpi3-subsetting_at_[hidden] > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi3-subsetting *

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MPI subsetting: charting the way forward at a telecon next week?
by unknown＠example.com 03 Jun '08

03 Jun '08

Hi everybody, It looks to me that we're on subsetting crossroads at the moment. There was a lot of good analysis so far, but I'm afraid we're slow on moving towards comparably sized synthesis. On one hand, we have a rather well defined and strictly aimed proposal from Dick that might fit into MPI-2.2 framework and is somewhat related to subsetting. We also have a wider proposal from Jeff, which also has interesting repercussions in the client/MPI data exchange area, potentially usable well outside of the subsetting per se. On the other hand we have a lot of things coming into the standard in MPI-3, and still no clear way to manage this complexity and cater for special purpose MPI configurations that may be necessary for MPI to expand to new areas. Moreover, the meeting in Chicago showed that not everybody agrees that introducing flexibility or going beyond the traditional HPC is a good idea at all. On this backdrop, I'd suggest we should meet on the phone before the Forum gathering in Menlo Park, and try to develop a workable proposition how subsetting can find its way into the standard. I happen to have time for such a meeting on the following days next week: Tuesday, May 10, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B Wednesday, May 11, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B Thursday, May 12, 2008, 8:00 am PDT/11:00 am EDT/17:00 CDT yes/no/plan B Please reply as usual to me whether you can make any of these slots. Best regards. Alexander PS. This time I took special care to have a subsetting slot at the F2F meeting. :) -- Dr Alexander Supalov Intel GmbH Hermuelheimer Strasse 8a 50321 Bruehl, Germany Phone: +49 2232 209034 Mobile: +49 173 511 8735 Fax: +49 2232 209029 --------------------------------------------------------------------- Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen Germany Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer Registergericht: Muenchen HRB 47456 Ust.-IdNr. VAT Registration No.: DE129385895 Citibank Frankfurt (BLZ 502 109 00) 600119052 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. *

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