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://urldefense.us/v3/__https://github.com/pmodels/mpich/issues/7759__;!!... Ken From: Alastair McKinstry via discuss <[email protected]> Date: Tuesday, March 31, 2026 at 11:02 AM To: [email protected] <[email protected]> Cc: Alastair McKinstry <[email protected]> Subject: [mpich-discuss] MPI ABI in mpich 5.0* This Message Is From an External Sender This message came from outside your organization. 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 -- Alastair McKinstry, GPG: 82383CE9165B347C787081A2CBE6BB4E5D9AD3A5 e: [email protected], im: @alastair:mckinstry.ie https://urldefense.us/v3/__https://mastodon.ie/@amckinstry__;!!G_uCfscf7eWS!...