MatSTRUMPACKSetGeometricWidth#

Set STRUMPACK https://portal.nersc.gov/project/sparse/strumpack/master width of the separator, for use with the MAT_STRUMPACK_GEOMETRIC value of MatSTRUMPACKReordering

Synopsis#

PetscErrorCode MatSTRUMPACKSetGeometricWidth(Mat F, PetscInt w)

Logically Collective

Input Parameters#

F - the factored matrix obtained by calling MatGetFactor() from PETSc-STRUMPACK interface
w - width of the separator

Options Database Key#

-mat_strumpack_geometric_width width - Width of the separator of the mesh, for geometric nested dissection ordering

See Also#

MATSOLVERSTRUMPACK, MatGetFactor(), MAT_STRUMPACK_GEOMETRIC, MatSTRUMPACKReordering

Level#

intermediate

Location#

src/mat/impls/aij/mpi/strumpack/strumpack.c

Examples#

src/ksp/ksp/tutorials/ex52.c

Implementations#

MatSTRUMPACKSetGeometricWidth_STRUMPACK() in src/mat/impls/aij/mpi/strumpack/impl/istrumpack.c

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