[mpich-discuss] Error when using MPICH2: Fatal error in PMPI_Allgather

[Miao Yu]

Hi MPI Developers,

 

I have a problem when using the MPICH2 with my research model. The system on
our computer is Utunbu. When I use the MPICH2-1.2.1.1-4 with 4 CPUs to run
my model, I got the error messages as follow:

============================================================================

Fatal error in PMPI_Allgather: Invalid buffer pointer, error stack:

PMPI_Allgather(958): MPI_Allgather(sbuf=0x23c625f0, scount=1, MPI_INTEGER,
rbuf=0x23c625f0, rcount=1, MPI_INTEGER, MPI_COMM_WORLD)

failed

PMPI_Allgather(931): Buffers must not be aliased

Fatal error in PMPI_Allgather: Internal MPI error!, error stack:

PMPI_Allgather(958)......: MPI_Allgather(sbuf=0x10c1cf18, scount=1,
MPI_INTEGER, rbuf=0x10c1cf10, rcount=1, MPI_INTEGER, MPI_COMM_

WORLD) failed

MPIR_Allgather_impl(805).:

MPIR_Allgather(766)......:

MPIR_Allgather_intra(144):

MPIR_Localcopy(357)......: memcpy arguments alias each other, dst=0x10c1cf18
src=0x10c1cf18 len=4

Fatal error in PMPI_Allgather: Internal MPI error!, error stack:

PMPI_Allgather(958)......: MPI_Allgather(sbuf=0x1177ff14, scount=1,
MPI_INTEGER, rbuf=0x1177ff10, rcount=1, MPI_INTEGER, MPI_COMM_

WORLD) failed

MPIR_Allgather_impl(805).:

MPIR_Allgather(766)......:

MPIR_Allgather_intra(144):

MPIR_Localcopy(357)......: memcpy arguments alias each other, dst=0x1177ff14
src=0x1177ff14 len=4

Fatal error in PMPI_Allgather: Internal MPI error!, error stack:

PMPI_Allgather(958)......: MPI_Allgather(sbuf=0x11256f1c, scount=1,
MPI_INTEGER, rbuf=0x11256f10, rcount=1, MPI_INTEGER, MPI_COMM_

WORLD) failed

MPIR_Allgather_impl(805).:

MPIR_Allgather(766)......:

MPIR_Allgather_intra(144):

MPIR_Localcopy(357)......: memcpy arguments alias each other, dst=0x11256f1c
src=0x11256f1c len=4

rank 3 in job 19  ocean_53883   caused collective abort of all ranks

  exit status of rank 3: return code 1

============================================================================

 

I've changed other versions of MPICH2, such as version 1.4, 1.2, 1.1, 1.1.1,
found that I can't fix this problem.

Could anyone please give me any suggestion or clue? I will appreciate for
that.

 

Miao

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