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

about MPI_Scan
by Likun Tan 02 Sep '11

02 Sep '11

Hello, I have a rectangular matrix B with size M*N (where N>>M), i use the following command to create and compute the matrix by column: PetscSplitOwnership(PETSC_COMM_WORLD, &n, &N); MPI_Scan(&n, &cstart, 1, MPI_INT, MPI_SUM, PETSC_COMM_WORLD); cstart -= n; MatCreateSeqDense(PETSC_COMM_SELF, M, n, PETSC_NULL, &B); for(j=0; j<n; j++) { for(i=0; i<M; i++) { MatSetValues(B, 1, &i, 1, &j, &value, INSERT_VALUES); } } MatAssemblyBegin(B, MAT_FINAL_ASSEMBLY); MatAssemblyEnd(B, MAT_FINAL_ASSEMBLY); where n is the number of columns in each processor. Any problem with this? Thanks, Likun

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Re: [Mpi-forum] Agenda for the Sept Meeting
by Pavan Balaji 01 Sep '11

01 Sep '11

On 09/01/2011 11:18 AM, Torsten Hoefler wrote: >> In short: >> >> 10 - 12: Shared memory proposal formal reading (tickets #284 and #287). > So those are *TWO* readings, this is important from a procedural > perspective. > >> 12 - 1: Endpoints proposal plenary (tickets #288 and #289) > Those are also two, but it's not that important for a plenary. Correct on both counts. -- Pavan Balaji http://www.mcs.anl.gov/~balaji

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Re: [Mpi-forum] Agenda for the Sept Meeting
by Torsten Hoefler 01 Sep '11

01 Sep '11

On Thu, Sep 01, 2011 at 10:43:55AM -0500, Pavan Balaji wrote: > > Also, the "end points" proposal and the shared memory proposal are two > different things. The agenda says "shared memory end points" which is > very confusing. Thanks Pavan, even more confusing -- the shared memory proposal and the endpoints proposal are actually two separate and independent tickets :-). > In short: > > 10 - 12: Shared memory proposal formal reading (tickets #284 and #287). So those are *TWO* readings, this is important from a procedural perspective. > 12 - 1: Endpoints proposal plenary (tickets #288 and #289) Those are also two, but it's not that important for a plenary. Thanks, Torsten -- bash$ :(){ :|:&};: --------------------- http://www.unixer.de/ ----- Torsten Hoefler | Performance Modeling and Simulation Lead Blue Waters Directorate | University of Illinois (UIUC) 1205 W Clark Street | Urbana, IL, 61801 NCSA Building | +01 (217) 244-7736

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Re: [Mpi-forum] Agenda for the Sept Meeting
by Pavan Balaji 01 Sep '11

01 Sep '11

Also, the "end points" proposal and the shared memory proposal are two different things. The agenda says "shared memory end points" which is very confusing. In short: 10 - 12: Shared memory proposal formal reading (tickets #284 and #287). 12 - 1: Endpoints proposal plenary (tickets #288 and #289) -- Pavan On 09/01/2011 06:29 AM, RICHARD GRAHAM wrote: > done > > > Date: Thu, 1 Sep 2011 04:56:33 -0500 > > From: htor(a)illinois.edu > > To: mpi-forum(a)lists.mpi-forum.org > > Subject: Re: [Mpi-forum] Agenda for the Sept Meeting > > > > Rich, > > > > I would like to request a formal reading of the shared memory proposal > > (as discussed in the RMA and Hybrid working groups): > > > > https://svn.mpi-forum.org/trac/mpi-forum-web/ticket/284 > > > > Thanks & Best, > > Torsten > > > > On Wed, Aug 24, 2011 at 12:24:18PM -0400, Rich L. Graham wrote: > > > Just a reminder that the current agenda is posted at > > > http://meetings.mpi-forum.org/secretary/2011/09/agenda.php > > > > > > There are still several slots available, so if you would like a > slot, please let me know in the next week or so. I have a request for a > large block from the Fortran working group, so will give them the rest > of the time if no other requests appear. > > > > > > Rich > > > _______________________________________________ > > > mpi-forum mailing list > > > mpi-forum(a)lists.mpi-forum.org > > > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum > > > > > > > -- > > bash$ :(){ :|:&};: --------------------- http://www.unixer.de/ ----- > > Torsten Hoefler | Performance Modeling and Simulation Lead > > Blue Waters Directorate | University of Illinois (UIUC) > > 1205 W Clark Street | Urbana, IL, 61801 > > NCSA Building | +01 (217) 244-7736 > > _______________________________________________ > > 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 -- Pavan Balaji http://www.mcs.anl.gov/~balaji

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Re: [Mpi-forum] Agenda for the Sept Meeting
by Pavan Balaji 01 Sep '11

01 Sep '11

Rich, The endpoints proposal is not a formal reading, just a regular plenary. The 10-12 slot was for the shared memory proposal formal reading. Torsten's request below is a duplicate. The shorter 12-1 slot was for the endpoints proposal. -- Pavan On 09/01/2011 06:29 AM, RICHARD GRAHAM wrote: > done > > > Date: Thu, 1 Sep 2011 04:56:33 -0500 > > From: htor(a)illinois.edu > > To: mpi-forum(a)lists.mpi-forum.org > > Subject: Re: [Mpi-forum] Agenda for the Sept Meeting > > > > Rich, > > > > I would like to request a formal reading of the shared memory proposal > > (as discussed in the RMA and Hybrid working groups): > > > > https://svn.mpi-forum.org/trac/mpi-forum-web/ticket/284 > > > > Thanks & Best, > > Torsten > > > > On Wed, Aug 24, 2011 at 12:24:18PM -0400, Rich L. Graham wrote: > > > Just a reminder that the current agenda is posted at > > > http://meetings.mpi-forum.org/secretary/2011/09/agenda.php > > > > > > There are still several slots available, so if you would like a > slot, please let me know in the next week or so. I have a request for a > large block from the Fortran working group, so will give them the rest > of the time if no other requests appear. > > > > > > Rich > > > _______________________________________________ > > > mpi-forum mailing list > > > mpi-forum(a)lists.mpi-forum.org > > > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum > > > > > > > -- > > bash$ :(){ :|:&};: --------------------- http://www.unixer.de/ ----- > > Torsten Hoefler | Performance Modeling and Simulation Lead > > Blue Waters Directorate | University of Illinois (UIUC) > > 1205 W Clark Street | Urbana, IL, 61801 > > NCSA Building | +01 (217) 244-7736 > > _______________________________________________ > > 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 -- Pavan Balaji http://www.mcs.anl.gov/~balaji

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Re: [Mpi-forum] Agenda for the Sept Meeting
by RICHARD GRAHAM 01 Sep '11

01 Sep '11

done > Date: Thu, 1 Sep 2011 04:56:33 -0500 > From: htor(a)illinois.edu > To: mpi-forum(a)lists.mpi-forum.org > Subject: Re: [Mpi-forum] Agenda for the Sept Meeting > > Rich, > > I would like to request a formal reading of the shared memory proposal > (as discussed in the RMA and Hybrid working groups): > > https://svn.mpi-forum.org/trac/mpi-forum-web/ticket/284 > > Thanks & Best, > Torsten > > On Wed, Aug 24, 2011 at 12:24:18PM -0400, Rich L. Graham wrote: > > Just a reminder that the current agenda is posted at > > http://meetings.mpi-forum.org/secretary/2011/09/agenda.php > > > > There are still several slots available, so if you would like a slot, please let me know in the next week or so. I have a request for a large block from the Fortran working group, so will give them the rest of the time if no other requests appear. > > > > Rich > > _______________________________________________ > > mpi-forum mailing list > > mpi-forum(a)lists.mpi-forum.org > > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum > > > > -- > bash$ :(){ :|:&};: --------------------- http://www.unixer.de/ ----- > Torsten Hoefler | Performance Modeling and Simulation Lead > Blue Waters Directorate | University of Illinois (UIUC) > 1205 W Clark Street | Urbana, IL, 61801 > NCSA Building | +01 (217) 244-7736 > _______________________________________________ > mpi-forum mailing list > mpi-forum(a)lists.mpi-forum.org > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum

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Re: [Mpi-forum] Agenda for the Sept Meeting
by Torsten Hoefler 01 Sep '11

01 Sep '11

Rich, I would like to request a formal reading of the shared memory proposal (as discussed in the RMA and Hybrid working groups): https://svn.mpi-forum.org/trac/mpi-forum-web/ticket/284 Thanks & Best, Torsten On Wed, Aug 24, 2011 at 12:24:18PM -0400, Rich L. Graham wrote: > Just a reminder that the current agenda is posted at > http://meetings.mpi-forum.org/secretary/2011/09/agenda.php > > There are still several slots available, so if you would like a slot, please let me know in the next week or so. I have a request for a large block from the Fortran working group, so will give them the rest of the time if no other requests appear. > > Rich > _______________________________________________ > mpi-forum mailing list > mpi-forum(a)lists.mpi-forum.org > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum > -- bash$ :(){ :|:&};: --------------------- http://www.unixer.de/ ----- Torsten Hoefler | Performance Modeling and Simulation Lead Blue Waters Directorate | University of Illinois (UIUC) 1205 W Clark Street | Urbana, IL, 61801 NCSA Building | +01 (217) 244-7736

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