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2023 10 23 webex
- Review Sessions issues at https://github.com/mpiwg-sessions/sessions-issues/issues
- Review PR https://github.com/mpiwg-sessions/mpi-standard/pull/49
The group discussed next steps for MPI_Comm_spawn as well.
Dan is of the opinion that we should pick up on the long ago lost thread of disaggregating this function in a way somewhat like what was done for MPI_Init as part of Sessions. Perhaps have a method which only launches processes but does not provide for synchronization or communicator creation. The group did like the idea of keeping requesting and allocation of system resources out of the purview of MPI. MPI would manage the creation of new processes to use newly acquired resources, either using some new method or using an external method to invoked new instances of mpiexec/mpirun.
Dan also mentioned limitations of publish namespace functionality and that we may want to also revisit that for any updates to MPI_Comm_accept/connect.
- Howard will update PR 49 with suggested wording to review at next meeting.