Re: [OMPI users] error from MPI_Allgather

penmpi. I could understand the problem as you said in the reply. But how can I set different buffers for them? thank you Rajesh

[OMPI users] MPI tests

Hello, I am looking for MPI tests, that tests performance, not just basic features. What kind of tests can I add to MTT (OpenMPI testing tool)? Where can I find open source tests to test OpenMPI performance? Any information you can provide will be helpful. Thanks! Shans

[OMPI users] error from MPI_Allgather

buffer pointer, error stack: PMPI_Allgather(958): MPI_Allgather(sbuf=0x6465d30, scount=1, MPI_INTEGER, rbuf=0x6465d30, rcount=1, MPI_INTEGER, MPI_COMM_WORLD) failed PMPI_Allgather(931): Buffers must not be aliased Thank you very much -- **Dr. Rajesh J. Postdoctoral Research Associate, Center for

Re: [OMPI users] Machinefile option in opempi-1.3.2

Thanks Ralph. It worked. Regards, Rajesh On Sat, Jun 20, 2009 at 10:28 AM, Ralph Castain wrote: > Ah, yes - that is definitely true. What you need to use is the "seq" (for > "sequential") mapper. Do the following on your cmd line: > --hostfile hostfile -mca rmaps

Re: [OMPI users] Machinefile option in opempi-1.3.2

!..hostname = n106 Rank 9 of C version says: Hello world!..hostname = n105 Thanks, Rajesh On Fri, Jun 19, 2009 at 10:40 PM, Ralph Castain wrote: > If you do "man orte_hosts", you'll see a full explanation of how the various > machinefile options work. > The default mappe

[OMPI users] Machinefile option in opempi-1.3.2

difference between these three options? Any help would be greatly appreciated. Thanks, Rajesh

Re: [OMPI users] MPI + Mixed language coding(Fortran90 + C++)

ined symbol error. I am completely stuck up and do not know how to continue further. Thanks, Rajesh From: users-boun...@open-mpi.org [mailto:users-boun...@open-mpi.org] On Behalf Of Mi Yan Sent: samedi 1 novembre 2008 23:26 To: Open MPI Users Cc: 'Open MPI Users'; users-boun...@open-m

Re: [OMPI users] MPI + Mixed language coding(Fortran90 + C++)

I did a simple test by creating a shared library using a FORTRAN code and the update made to the common block is taken in to account by the executable. Is there any flag or pragma that need to be activated for mixed language MPI? Thank you once again for the reply. Rajesh -Original Me

[OMPI users] MPI + Mixed language coding(Fortran90 + C++)

common blocks. As I access those common blocks during runtime the values are not initialized. I would like to know if what I am doing is possible ?I hope that my problem is clear.. Your valuable suggestions are welcome !!! Thank you, Rajesh

Re: [OMPI users] MPI_Finalize segmentation fault with MPI_Intercomm_merge

As a followup to my problem, I tested this sample code with LAM/MPI and it worked perfectly without any segmentation faults. Has any one tried this and faced this isue? Any help will be appreciated. Regards, Rajesh -- Forwarded message -- From: Rajesh Sudarsan List-Post: users

[OMPI users] MPI_Finalize segmentation fault with MPI_Intercomm_merge

Hi, I am trying to write a simple code which does the following - A master process running on 'n' processors spawn 4 processes using the MPI_Comm_spawn_multiple command. After spawning, the intercommunicator between the master and the spawned processes are merged using MPI_Intercomm_merge to create

[OMPI users] Reinitialize MPI_COMM_WORLD

during MPI_Init call. But is there a way to update the value of MPI_COMM_WORLD at runtime to reflect this expanded set of processes? Is it possible to some how reinitialize MPI_COMM_WORLD using ompi_comm_init() function? Regards, Rajesh