ompi

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Pass NULL to the collective components for unused buffers.

2

We want the underlying algorithms to know when they can use a buffer as a temporary, such as when one module delegate a collective to another. Instead of allocating temporaries...

bosilca

v5.0.x: Ulfm/ishrink

2

Add the ishrink procedure cherry-picked from pr #9925 pr #11447

abouteiller

MPI_T_pvar_get_num() returns extraneous number of variables and causes MPI_T_pvar_get_info() to return with error later

8

Thank you for taking the time to submit an issue! ## Background information ### What version of Open MPI are you using? (e.g., v3.0.5, v4.0.2, git branch name and hash,...

kingshuk00

Open MPI make fails with UCX, undefined reference to `ucp_tag_recv_nbx'

11

Thank you for taking the time to submit an issue! ## Background information ### What version of Open MPI are you using? (e.g., v3.0.5, v4.0.2, git branch name and hash,...

amirsojoodi

Docs: Fold all legacy "FAQ" content into the rest of the document

3

All the content in `docs/faq/` is from the legacy FAQ (i.e., from https://www.open-mpi.org/faq/). It was trivially converted over to RST, but the content was largely left the same. The intent...

jsquyres

Documentation beautification on the rst pages

18

**Is your feature request related to a problem? Please describe.** The new documentation produces some *weird* looking links on when viewed on a website A reference: https://docs.open-mpi.org/en/v5.0.x/man-openmpi/man3/MPI_Win_allocate.3.html#mpi-win-allocate **Describe the solution...

zerothi

mpirun can now invoke mpirun

2

We have repeatedly received "bug" reports from users that use `mpirun` to invoke a script that in turn calls `mpirun`, only to have the second invocation rejected. There were good...

rhc54

3rd-party/romio cannot be built with RHEL7 GNU compilers from Open MPI v5

1

The root cause is `romio` requires `stdatomic.h` that is only available from GCC 4.9 (RHEL7 uses GCC 4.8). `configure --enable-mca-no-build=io-romio314 does not work as expected ... ``` $ configure --enable-mca-no-build=io-romio341...

ggouaillardet

opal_lifo test fails on s390x

24

Looking at updating the Fedora openmpi package to 5.0.0rc9. I'm getting the following test failure on s390x: ``` FAIL: opal_lifo =============== Failure : lifo push/pop multi-threaded with atomics Failure :...

opoplawski

MTT failure on IBM

3

The following failure is being reported from both OMPI v5.0 and main branches: ``` [ip-172-31-10-245:11280] Unable to extract peer [[26806,1],132] nodeid from the modex. [ip-172-31-10-245:11280] Unable to extract peer [[26806,1],133]...

rhc54