[Mpi3-ft] Ticket #292: MPI_COMM_KILL

Wesley Bland wbland at mcs.anl.gov
Tue May 7 16:19:53 CDT 2013

author: jjhursey


This proposal put forth a new function, MPI_COMM_KILL, that would exclude a remote rank from any further communication in all communicators in the MPI universe.

One of the concerns of the forum is that it was starting to define semantics for failure scenarios other than fail-stop errors, specifically transient/intermittent failures. This was moved out of the previous RTS proposal because of this distinction. In the context of the current proposal, ULFM, this isn't really required anymore as the ULFM proposal states that once a process starts exhibiting failure, it is treated as fail-stop and should be excluded from further participation.
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