[Mpi-forum] Errata Announcement for December Meeting / MPI 4.0 RC

Christoph Niethammer niethammer at hlrs.de
Mon Nov 2 09:51:23 CST 2020

Hello all,

I’d like to announce the following Errata issues/PRs for inclusion in the MPI 4.0 RC and voting at the December meeting.

# 311: Fix wrong term "process group with Cartesian structure" in section 7.5.5

Issue:  https://github.com/mpi-forum/mpi-issues/issues/311
PR:  https://github.com/mpi-forum/mpi-standard/pull/280
pdf:  https://github.com/mpi-forum/mpi-issues/files/5421661/topol_fix-unspecified-cartesian-process-group.pdf

# 314: Fix undefined behaviour of MPI_Cart/Graph*_get caused by binding to specific communicator creation calls

Issue:  https://github.com/mpi-forum/mpi-issues/issues/314
PR:  https://github.com/mpi-forum/mpi-standard/pull/285
pdf:  https://github.com/mpi-forum/mpi-issues/files/5476130/mpi-report-diff-ticket-314.pdf

# 315: Fix not precisely defined topology information for `MPI_Cart_sub`

Issue:  https://github.com/mpi-forum/mpi-issues/issues/315
PR:  https://github.com/mpi-forum/mpi-standard/pull/286
pdf:  https://github.com/mpi-forum/mpi-issues/files/5428496/topol-clarify-mpi-cart-sub-comm-topo-assignment.pdf

I brought those issues in the topology chapter up during the last meeting.
Since then there were several improvements for the PRs from within the Coll/Topology WG - especially for #314.
Thanks for the support there!



Christoph Niethammer
High Performance Computing Center Stuttgart (HLRS)
Nobelstrasse 19
70569 Stuttgart

Tel: ++49(0)711-685-87203
email: niethammer at hlrs.de

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