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Tpetra: SpGEMM wrapper code misses corner case #9506

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csiefer2 opened this issue Jul 29, 2021 · 0 comments
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Tpetra: SpGEMM wrapper code misses corner case #9506

csiefer2 opened this issue Jul 29, 2021 · 0 comments
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pkg: Tpetra type: bug The primary issue is a bug in Trilinos code or tests

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Turns out the SpGEMM wrapper code incorrectly handles the case of A*B with A's colMap ==A's domainMap == B's rowmap, but only on more than 1 MPI rank.

I'm working on this as part of a non-ASC MueLu PR and the fix is literally two lines of code. Just thought I'd let y'all know.
@csiefer2 csiefer2 added type: bug The primary issue is a bug in Trilinos code or tests pkg: Tpetra labels Jul 29, 2021
@csiefer2 csiefer2 self-assigned this Jul 29, 2021
csiefer2 added a commit that referenced this issue Aug 5, 2021
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Tpetra: Fixing SpGEMM bug #9506
97f2b64
@csiefer2 csiefer2 mentioned this issue Aug 5, 2021
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pkg: Tpetra type: bug The primary issue is a bug in Trilinos code or tests
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