Howard Pritchard

I'm marking this as a blocker because its solution will likely involve changes to a parameter in the mpi.h.in header file - which is incorrect in any case for the...


This goes back to the above figure a process sets. We have a blurb in the MPI-4 standard, chapter 11, that states ``` If two MPI processes get the same...

@rhc54 getting side tracked today I'll answer questions here tomorrow. we really are only using PMIx groups as a rendezvous mechanism not as something for tagging comms, groups, etc.

@rhc54 the only connection that the MPI communicator generated from MPI_Comm_create_from_group has to a PMIx group is the PMIX_GROUP_CONTEXT_ID we got back from the PMIx_Group_construct call. We use the PMIx...

That approach may be the way to go. we do that already for the mpi_intercomm_create_from_groups method.

got clarification from @rhc54 about potential max length of grp string arg to PMIx_Group_construct. seems to be a mistake in some older versions of the PMIx standard. removing the blocker...

good question. Unless @jsquyres objects we should move it to v6.0.x. We need something like https://github.com/open-mpi/ompi/pull/10302 to truly be in compliance with the standard wrt mpi_f08 bindings. This is turning...

@floquet you don't see this problem because if you're building with spack, the libhio recipe uses an external json-c.

Is there a way to separate out building the tests from running them? The system I'm using doesn't support building on the compute nodes.