Hi Howard Thanks. I’m interested as the main packager of MPI for Debian; ie are we going to have another / definitive ABI for MPI “soon”, and testing it against the archive of applications. I plan to rebuild all MPI apps in Debian against mpi_abi
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Hi Howard

Thanks. I’m interested as the main packager of MPI for Debian; ie are we going to have another / definitive ABI for MPI “soon”, and testing it against the archive of applications.

I plan to rebuild all MPI apps in Debian against mpi_abi (for both MPICH and OpenMPI when they add MPI-5 support), for now I’ll just test C apps on MPICH.

Alastair

From: Howard Pritchard via discuss <discuss@mpich.org>
Date: Wednesday, 1 April 2026 at 16:10
To: discuss@mpich.org <discuss@mpich.org>
Cc: Howard Pritchard <hppritcha@gmail.com>, Raffenetti, Ken <raffenet@anl.gov>
Subject: Re: [mpich-discuss] MPI ABI in mpich 5.0*

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Hi Alastair,

You may want to try https://github.com/eschnett/mpif .

Howard


Am Mi., 1. Apr. 2026 um 08:32 Uhr schrieb Raffenetti, Ken via discuss <discuss@mpich.org>:
MPICH does not currently provide the mpifort_abi library and compile wrapper. I’ve created an issue to note this and track progress on implementation for the next major release. Thanks for the question/report. https://github.com/pmodels/mpich/issues/7759

Ken

From: Alastair McKinstry via discuss <discuss@mpich.org>
Date: Tuesday, March 31, 2026 at 11:02 AM
To: discuss@mpich.org <discuss@mpich.org>
Cc: Alastair McKinstry <mckinstry@debian.org>
Subject: [mpich-discuss] MPI ABI in mpich 5.0*

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Hi,

Does mpich 5.0.0 support the full MPI ABI standard ? I see it creates 
mpicc_abi which links against libmpi_abi, but no equivalent mpifort_abi. 
Is this planned?

Best regards

Alastair

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