Reservoir coupling: Fix MPI synchronization in receiveGroupTargetsFromMaster()#6762
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hakonhagland
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jenkins build this please |
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Okay. In that case, I'll put the PR into a draft state to avoid inadvertent merging. |
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Other PR is merged. Please rebase for easier reviewing and ping me |
In multi-rank slave processes, receiveGroupTargetsFromMaster() was only called by rank 0, but the underlying receive functions contain MPI broadcasts that require ALL ranks to participate.
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jenkins build this please |
blattms
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Feb 4, 2026
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Builds on #6761, which should be merged first.
Fix MPI synchronization in
receiveGroupTargetsFromMaster(). In multi-rank slave processes,receiveGroupTargetsFromMaster()only received targets on rank 0, but the underlying receive functions contained MPI broadcasts that required all ranks to participate.