[mpich-discuss] Error with MPMD using MPE

[Edward Smith]

Hi, I hope you can help me. I have a problem using mpe logging with an mpmd job in fortran. With the following two routines using duplicate comms,
!-----------------------------------------------------
program a
    use mpi
    implicit none

    integer    :: ierr, dup_COMM

    call MPI_init(ierr)
    call MPI_COMM_dup(MPI_COMM_WORLD,dup_COMM,ierr)
    call MPI_finalize(ierr)

end program a
!-----------------------------------------------------
program b
    use mpi
    implicit none

    integer    :: ierr, dup_COMM, rank, rankdup

    call MPI_init(ierr)
    call MPI_COMM_dup(MPI_COMM_WORLD,dup_COMM,ierr)
    call MPI_finalize(ierr)

end program b

Compiled using:
mpif90 -mpe=mpilog -o a.exe a.f90
mpif90 -mpe=mpilog -o b.exe b.f90

Run using:
mpiexec -n 3 ./b.exe : -n 3 ./a.exe 

The error returned is:
Fatal error in PMPI_Comm_dup: Other MPI error, error stack:
PMPI_Comm_dup(175)..................: MPI_Comm_dup(MPI_COMM_WORLD, new_comm=0x7fffd3ed9c8c) failed
PMPI_Comm_dup(160)..................: 
MPIR_Comm_dup_impl(55)..............: 
MPIR_Comm_copy(1500)................: 
MPIR_Get_contextid(743).............: 
MPIR_Get_contextid_sparse_group(999): 
MPIR_Allreduce_impl(719)............: 
MPIR_Allreduce_intra(212)...........: 
MPIR_Bcast_impl(1369)...............: 
MPIR_Bcast_intra(1199)..............: 
MPIR_Bcast_binomial(160)............: message sizes do not match across processes in the collective routine: Received 4 but expected 256

Should it be possible to use mpe for an mpmd case?
Thanks
Ed

 		 	   		  
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