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vbd distance-1 coloring segfault #1596

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brian-kelley opened this issue Nov 17, 2022 · 1 comment
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vbd distance-1 coloring segfault #1596

brian-kelley opened this issue Nov 17, 2022 · 1 comment
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VBD (vertex-based deterministic) coloring segfaults when used as the coloring algorithm for Ifpack2 MTGS in EMPIRE's WaveLaunch2D test.
@brian-kelley brian-kelley self-assigned this Nov 17, 2022
brian-kelley added a commit to brian-kelley/kokkos-kernels that referenced this issue Nov 18, 2022
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VBD/VBDBIT D1 coloring: support distributed graphs
90e4b73 
Like other graph algorithms, ignore neighbors >= numVerts (when the
graph is the local part of a distributed Tpetra CrsGraph, these
neighbors correspond to remotes). Fixes kokkos#1596.

Also add to D1 coloring perf test in --verbose mode:
- Check that input graph (without remote edges) is structurally symmetric
- Check that coloring is valid
@brian-kelley brian-kelley mentioned this issue Nov 18, 2022
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Fix ready in #1598 - nice easy fix, just make VBD/VBDBIT ignore remote edges like the other algos.

@lucbv lucbv closed this as completed in ab7e6c7 Mar 3, 2023
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