May 2011 - mpi-forum - mailman3.cels.anl.gov

Changing view after posting non-blocking I/O operations
by George Zagaris 25 May '11

25 May '11

Hello, I was wondering if MPI allows changing the file view after issuing a non-blocking I/O operation. Here is a snipet of what I want to achieve: MPI_Offset disp1,disp2; MPI_Request rqst1,rqst2; // Write first section MPI_File_set_view(fhandle,disp1,MPI_DOUBLE,MPI_DOUBLE, const_cast<char*>("native"), MPI_INFO_NULL ); MPI_File_iwrite_at(fhandle,0,array1,N,MPI_DOUBLE, &rqst1 ); // Write second section MPI_File_set_view(fhandle,disp1,MPI_DOUBLE,MPI_DOUBLE, const_cast<char*>("native"), MPI_INFO_NULL ); MPI_File_iwrite_at(fhandle,0,array2,N,MPI_DOUBLE,&rqst2); MPI_Wait(rqst1); MPI_Wait(rqst2); My concern is that the second MPI_File_set_view will interfere with previously issued non-blocking write. Any thoughts or suggestions? Thank you very much for all your time & help. Best, George

1 0

const implementation
by Fab Tillier 24 May '11

24 May '11

Hi Folks, When ticket 140 was originally proposed, a 'proper' implementation (i.e. not just casting away const in the API layer) was done in the MPICH2 codebase, and tested against several different compilers. Does this implementation still satisfy the implementation requirement for this ticket, or do we need to redo/update it for 3.0? Thanks, -Fab

1 0

ticket140 (const) ticket0 updates posted
by Fab Tillier 24 May '11

24 May '11

Hi folks, The ticket0 updates to ticket140 based on feedback from the 1st reading have been posted to the ticket (slight wordsmithing of the IN description to clarify "its execution"). Cheers, -Fab

1 0

MPI-3 gating features vote results
by Jeff Squyres 23 May '11

23 May '11

18 of 23 eligible organizations voted Remember, these are only the *gating* features for MPI-3. Other features can (and likely will) certainly make it in. We are basically declaring that these features set the clock for MPI-3's release. There is a tie for 3rd place. Scores, in order: 14: RMA 8: FT stabilization 7: MPIT 7: Neighborhood collectives Other scores: 6: Non-blocking collective IO 4: Hybrid 4: Fortran 08 bindings 2: Persistence 2: MPI_Count 0: Const -- Jeff Squyres jsquyres(a)cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/

1 0

Re: [Mpi-forum] Vote for MPI-3 gating features
by Jeff Squyres 19 May '11

19 May '11

Ok, I guess it's Sunday, 5/22. On May 19, 2011, at 2:30 AM, Rajeev Thakur wrote: > Rich's note said the deadline is Sunday, 5/22. > > Rajeev > > On May 18, 2011, at 7:44 AM, Jeff Squyres wrote: > >> I have only received 5 votes out of the 19 eligible organizations. >> >> Please vote by 5pm US Eastern time this Friday evening (May 20, 2011). Thanks. >> >> -- >> Jeff Squyres >> jsquyres(a)cisco.com >> For corporate legal information go to: >> http://www.cisco.com/web/about/doing_business/legal/cri/ >> >> >> _______________________________________________ >> mpi-forum mailing list >> mpi-forum(a)lists.mpi-forum.org >> http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum > > > _______________________________________________ > mpi-forum mailing list > mpi-forum(a)lists.mpi-forum.org > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum -- Jeff Squyres jsquyres(a)cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/

1 0

Re: [Mpi-forum] Vote for MPI-3 gating features
by Jeff Squyres 19 May '11

19 May '11

Yes what? On May 18, 2011, at 11:06 PM, Anthony Skjellum wrote: > Yes for UAB > > Anthony Skjellum, PhD > 205-807-4968 > > > On May 18, 2011, at 8:44 AM, Jeff Squyres <jsquyres(a)cisco.com> wrote: > >> I have only received 5 votes out of the 19 eligible organizations. >> >> Please vote by 5pm US Eastern time this Friday evening (May 20, 2011). Thanks. >> >> -- >> Jeff Squyres >> jsquyres(a)cisco.com >> For corporate legal information go to: >> http://www.cisco.com/web/about/doing_business/legal/cri/ >> >> >> _______________________________________________ >> mpi-forum mailing list >> mpi-forum(a)lists.mpi-forum.org >> http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum > > _______________________________________________ > mpi-forum mailing list > mpi-forum(a)lists.mpi-forum.org > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum -- Jeff Squyres jsquyres(a)cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/

1 0

Please vote for MPI-3 blocking topics
by Jeff Squyres 19 May '11

19 May '11

The following organizations have not voted yet (or if you did, I somehow didn't record them -- please re-send): Argonne Bull Cray Fugitsu HDF IBM INRIA Intel Los Alamos Sandia U. Alabama Birmingham U. Tennessee U. Tokyo -- Jeff Squyres jsquyres(a)cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/

1 0

Re: [Mpi-forum] Vote for MPI-3 gating features
by Rajeev Thakur 19 May '11

19 May '11

Rich's note said the deadline is Sunday, 5/22. Rajeev On May 18, 2011, at 7:44 AM, Jeff Squyres wrote: > I have only received 5 votes out of the 19 eligible organizations. > > Please vote by 5pm US Eastern time this Friday evening (May 20, 2011). Thanks. > > -- > Jeff Squyres > jsquyres(a)cisco.com > For corporate legal information go to: > http://www.cisco.com/web/about/doing_business/legal/cri/ > > > _______________________________________________ > mpi-forum mailing list > mpi-forum(a)lists.mpi-forum.org > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum

1 0

Re: [Mpi-forum] Vote for MPI-3 gating features
by Anthony Skjellum 18 May '11

18 May '11

Yes for UAB Anthony Skjellum, PhD 205-807-4968 On May 18, 2011, at 8:44 AM, Jeff Squyres <jsquyres(a)cisco.com> wrote: > I have only received 5 votes out of the 19 eligible organizations. > > Please vote by 5pm US Eastern time this Friday evening (May 20, 2011). Thanks. > > -- > Jeff Squyres > jsquyres(a)cisco.com > For corporate legal information go to: > http://www.cisco.com/web/about/doing_business/legal/cri/ > > > _______________________________________________ > mpi-forum mailing list > mpi-forum(a)lists.mpi-forum.org > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum

1 0

Vote for MPI-3 gating features
by Jeff Squyres 18 May '11

18 May '11

I have only received 5 votes out of the 19 eligible organizations. Please vote by 5pm US Eastern time this Friday evening (May 20, 2011). Thanks. -- Jeff Squyres jsquyres(a)cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/

1 0