[mpiwg-sessions] Sessions WG items for MPI 4.1

Pritchard Jr., Howard howardp at lanl.gov
Fri Sep 30 06:29:46 CDT 2022


HI Martin and Wes,

Related to sessions, here’s what we want to get into 4.1 for sure:

Language bindings chapter needs updating for Sessions model
https://github.com/mpi-forum/mpi-issues/issues/535<https://urldefense.com/v3/__https:/github.com/mpi-forum/mpi-issues/issues/535__;!!Bt8fGhp8LhKGRg!CMQ53r-tmxPE0Xm8vO0BZ0v3qjLdEkCEcka57rjIidhE95NUUEzC_coUX2SjDNT8xU-JK_J00NKBGcTJuLH1eyxwS7A$>
https://github.com/mpi-forum/mpi-standard/pull/658<https://urldefense.com/v3/__https:/github.com/mpi-forum/mpi-standard/pull/658__;!!Bt8fGhp8LhKGRg!CMQ53r-tmxPE0Xm8vO0BZ0v3qjLdEkCEcka57rjIidhE95NUUEzC_coUX2SjDNT8xU-JK_J00NKBGcTJuLH1DZW7bIQ$>

MPI_LASTUSEDCODE not covered in the sessions model
https://github.com/mpi-forum/mpi-issues/issues/545<https://urldefense.com/v3/__https:/github.com/mpi-forum/mpi-issues/issues/545__;!!Bt8fGhp8LhKGRg!CMQ53r-tmxPE0Xm8vO0BZ0v3qjLdEkCEcka57rjIidhE95NUUEzC_coUX2SjDNT8xU-JK_J00NKBGcTJuLH157LypR0$>
https://github.com/mpi-forum/mpi-standard/pull/657<https://urldefense.com/v3/__https:/github.com/mpi-forum/mpi-standard/pull/657__;!!Bt8fGhp8LhKGRg!CMQ53r-tmxPE0Xm8vO0BZ0v3qjLdEkCEcka57rjIidhE95NUUEzC_coUX2SjDNT8xU-JK_J00NKBGcTJuLH1jOHV2sg$>

Clarify/fix description and usage of MPI_GROUP_NULL
https://github.com/mpi-forum/mpi-issues/issues/534<https://urldefense.com/v3/__https:/github.com/mpi-forum/mpi-issues/issues/534__;!!Bt8fGhp8LhKGRg!CMQ53r-tmxPE0Xm8vO0BZ0v3qjLdEkCEcka57rjIidhE95NUUEzC_coUX2SjDNT8xU-JK_J00NKBGcTJuLH1eq-IZ3k$>
https://github.com/mpi-forum/mpi-standard/pull/651<https://urldefense.com/v3/__https:/github.com/mpi-forum/mpi-standard/pull/651__;!!Bt8fGhp8LhKGRg!CMQ53r-tmxPE0Xm8vO0BZ0v3qjLdEkCEcka57rjIidhE95NUUEzC_coUX2SjDNT8xU-JK_J00NKBGcTJuLH1-YYHK7Q$>

expansion of error handler association to cover sessions (and clarifications)
https://github.com/mpi-forum/mpi-issues/issues/511<https://urldefense.com/v3/__https:/github.com/mpi-forum/mpi-issues/issues/511__;!!Bt8fGhp8LhKGRg!CMQ53r-tmxPE0Xm8vO0BZ0v3qjLdEkCEcka57rjIidhE95NUUEzC_coUX2SjDNT8xU-JK_J00NKBGcTJuLH1w9vdPdw$>
https://github.com/mpi-forum/mpi-standard/pull/629<https://urldefense.com/v3/__https:/github.com/mpi-forum/mpi-standard/pull/629__;!!Bt8fGhp8LhKGRg!CMQ53r-tmxPE0Xm8vO0BZ0v3qjLdEkCEcka57rjIidhE95NUUEzC_coUX2SjDNT8xU-JK_J00NKBGcTJuLH1OdhAUJU$>


In addition, we may see if there’s a low overhead way to address concerns Rolf has about MPI_Buffer_attach:

https://lists.mpi-forum.org/pipermail/mpiwg-sessions/2022-September/000683.html
https://github.com/mpiwg-sessions/sessions-issues/issues/25


Howard

—

[signature_61897647]

Howard Pritchard
Research Scientist
HPC-ENV

Los Alamos National Laboratory
howardp at lanl.gov

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