As Rajeev mentioned, a test program is most useful. The most common error in these kind of programs is the displacement unit provided to win_create. Remember that the offset given to PUT is multiplied with the displacement unit given to win_create. — Pavan On Apr 26, 2014, at 10:58 AM, Rajeev Thakur <[email protected]> wrote:

Can you send a small test program that can be compiled and run?

Rajeev

On Apr 26, 2014, at 10:03 AM, Ted Sariyski <[email protected]> wrote:

...

HI, I am trying to apply RMA so that each process evaluates its segment of data and PUTs it at process 0. Here is what I do (see attachment):

1. Process 0 creates a window win0 with size=GLOBAL_SIZE of the array 2. Rest of processes create NULL() win0 with size 0. 3. Eeach process evaluates it portion dat with size myCount 4. All create mpi_shared_lock on 0 (dat on different process are strictly non-overlapping) 5. Put dat on 0 with appropriate offset (myOffset)

Code works on two cpus ONLY when target_displacement=0. If target_displacement=myOffset, I get:

...

rank 0 in job 383 craft28.craft-tech.com_57409 caused collective abort of all ranks exit status of rank 0: killed by signal 11

What do I miss here?

Any help will be highly appreciated. Thank in advance, --Ted

P.S. Mixed C and fortran90 with mpich2.1.5 on Linux/x86_64 (CentOS 6.5)

... integer(mpi_address_kind) :: size=0,target_displacement=0 if ( myid == 0 ) then call mpi_win_create(mdat,size,mpi_realsize,info,comm,win0,ierr) else call mpi_win_create(NULL(),0,1,info,comm,win0,ierr) end if ... target_rank=0 call mpi_win_lock(mpi_lock_shared,target_rank,mpi_mode_nocheck,win0,ierr) ... origin_count=myCount target_count=myCount target_displacement=myOffset ... call mpi_put(ldat,origin_count,mpi_real,target_rank,target_displacement,target_count,mpi_real,win0,ierr) ... _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss

_______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss