Use METIS ordering for superlu#218
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Bruno02468 merged 9 commits intoMystranSolver:devfrom Apr 29, 2026
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Add submodules for METIS, patch METIS build system to work nicely with ours, patch superlu to use METIS when available.
pass the fortran superlu driver to use metis ordering if available.
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Merging to add build fixes. |
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This PR adds the METIS library and it's dependencies, patches the METIS build system for compatibility, and patches SuperLU to use METIS if it's available.
METIS calculates a fill-in reducing permutation used by superlu for the factorization, on the current ~250k element benchmark problems this reduces ram usage from approx 9GB to 7GB and provides a significant reduction in solve time, on the order of a 40-80s reduction on a 200-250s total runtime. This should also make memory usage more consistent for similarly sized decks.