Backport MPI-related developments [16.0.x]#50818

Merged

cmsbuild merged 8 commits into

cms-sw:CMSSW_16_0_Xfrom

fwyzard:MPI_developments_backport_160x

Apr 28, 2026

Commits on Apr 27, 2026

made the group order deterministic and fixed command in help message

Annnnya
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fwyzard
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Add a test to check for deadlocks and the handling of non-initialized streams in MPI modules

ghyls
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fwyzard
committed
Avoid blocking MPI calls in working threads in MPISender.cc and MPIReceiver.cc

ghyls
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fwyzard
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prevent MPI from crashing when attempting to reset a non-initialized stream

ghyls
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fwyzard
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Only finalize MPI if the MPIService destructor is not called in due to an error

Annnnya
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fwyzard
committed
enable multiple remotes in automatic splitter and make processes exchange the hashes at communicatior channels creation

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fwyzard
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Commits on Apr 28, 2026

mpi modules in different paths per group

Annnnya
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fwyzard
committed
copy message logger in the mpi configuration splitter

Annnnya
authored and
fwyzard
committed