[Mpi-comments] buffer error

[Jim Dinan]

MPICH is reporting that your call to MPI_Gather is not valid.  Your src_buf
and recv_buf are the same buffer, which is not allowed.

Also, what Wesley said.  :)

 ~Jim.


On Mon, Jun 10, 2013 at 9:10 AM, Wesley Bland <wbland at mcs.anl.gov> wrote:

> This mailing list isn't the correct place to ask questions about using
> MPI. This is for asking questions about standardizing MPI. I'd encourage
> you to repost your question on discuss at mpich.org and you'll get
> assistance with MPICH there.
>
> Thanks,
> Wesley
>
> On Jun 10, 2013, at 9:04 AM, amin izadi <izadi.amin at gmail.com> wrote:
>
> > hi to all
> > I want to use mpich for running my SUNTANS code
> > when I dont use mpich my example code runs. but when I use mpich
> > this error creates.
> > what's the problem and how can I fix it?
> > thanks in advance
> >
> > Fatal error in PMPI_Gather: Invalid buffer pointer, error stack:
> > PMPI_Gather(856): MPI_Gather(sbuf=0xe176a0, scount=1, MPI_INT,
> rbuf=0xe176a0, rcount=1, MPI_INT, root=0, comm=0x84000000) failed
> > PMPI_Gather(797): Buffers must not be aliased
> >
> >
> ===================================================================================
> > =   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
> > =   EXIT CODE: 1
> > =   CLEANING UP REMAINING PROCESSES
> > =   YOU CAN IGNORE THE BELOW CLEANUP MESSAGES
> >
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>
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