How to Configure MSMPI for the MinGW-w64 Cross-Compiler

Jan. 21, 2013: Updated instructions for HPC Pack 2012 MS-MPI Redistributable Package

Here you'll find the instructions on how to create libmsmpi.a for the MinGW-w64 cross-compiler to link against for MPI applications, given the free MS-MPI Redistributable Package. Once configured with the msmpi library an MPI application can run in parallel on a multi-core Windows machine or in parallel on Microsoft Windows HPC Server (cluster). Using the technique described here a modified version of OpenFOAM for Windows was configured with native MPI support.


Gather MPI distribution from Windows

Copy C:\Program Files\Microsoft HPC Pack 2012 to a temp location <msmpi-windows-home> (e.g., D:\projects\mpi\ms-hpc) then copy C:\Windows\System32\msmpi.dll to <msmpi-windows-home>\Lib\amd64\.

Transfer <msmpi-windows-home> to Linux.

Create libmsmpi.a on Linux

Assuming the MSMPI distribution copied over from Windows, in the previous step, is located at <msmpi-linux-home> (e.g., $HOME/projects/msmpi/ms-hpc) create libmsmpi.a using:

  • cd <msmpi-linux-home>/Lib/amd64
  • gendef msmpi.dll - creates msmpi.def
  • x86_64-w64-mingw32-dlltool -d msmpi.def -l libmsmpi.a -D msmpi.dll - creates libmsmpi.a

Fix missing __int64 definition

You will need to add #include <stdint.h> to <msmpi-linux-home>/Inc/mpi.h:127 to define __int64.

Set compiler flags

Compile in Linux using MinGW-w64 (e.g., x86_64-w64-mingw32-gcc) with compiler flags:

  • -I<msmpi-linux-home>/Inc
  • -L<msmpi-linux-home>/Lib/amd64
  • -lmsmpi


Would you be able to help with the MinGW 64bit gfortran also?

I was wondering if you would be able to give the same instructions to use MS MPI with MinGW 64-bit gfortran also? I tried to duplicate, but did not work with my method.

Thank you.

Nevermind, this solution did

Nevermind, this solution did actually work for gfortran also. Thank you for this 2 year old post :)

one can also extract the msi file directly in linux

this does not require a windows machine :

7z x mpi_64.msi
gendef msmpi64.dll
x86_64-w64-mingw32-dlltool -d msmpi64.def -l libmsmpi.a -D msmpi64.dll

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