Thanks, I believe I've seen this issue before but our nightly builds don't currently show any errors. Might be specific to a compiler/linker version. Do you have a patch you could share to show your fix? If not, I will try to reimplement the solution. Ken On 07/28/2016 09:36 AM, Edric Ellis wrote:

Hi there,

I found three source files:

src/mpi/comm/comm_agree.c

src/mpi/comm/comm_shrink.c

src/glue/romio/all_romio_symbols.c

where the MPIR functions were ending up in both the “mpi” and “pmpi” object files (we need to repackage the libraries in a slightly odd way on Mac, and this was causing that to fail). I fixed this by moving (or adding) the “#ifndef MPICH_MPI_FROM_PMPI” guards to ensure the MPIR symbols didn’t end up in the “mpi” object files. This problem appears to still be present in the latest version 3.2 (I’m actually currently building 3.1.4).

Best regards,

Edric Ellis.

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