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Fix mpi bug#217

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JensWehner wants to merge 3 commits into
wavefunction91:skalafrom
JensWehner:fix_mpi_bug
Open

Fix mpi bug#217
JensWehner wants to merge 3 commits into
wavefunction91:skalafrom
JensWehner:fix_mpi_bug

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@JensWehner

@JensWehner JensWehner commented Jul 16, 2026

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Fix for cp2k/cp2k#5537

as described there, the problem was using the global communicator, because cp2k actually passes a subgroup in and then indices derived from the global one are wrong. Exactly what they described in the issue.

Added a test and compiled cp2k with it and then the error seems to be gone.

@tvogels tvogels left a comment

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Looks good, thanks!

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3 participants