MatSTRUMPACKSetGeometricComponents

Set STRUMPACK https://portal.nersc.gov/project/sparse/strumpack/master number of degrees of freedom per mesh point, for use with the MAT_STRUMPACK_GEOMETRIC value of MatSTRUMPACKReordering

Synopsis

PetscErrorCode MatSTRUMPACKSetGeometricComponents(Mat F, PetscInt nc)

Logically Collective

Input Parameters

• F - the factored matrix obtained by calling MatGetFactor() from PETSc-STRUMPACK interface

• nc - Number of components/dof’s per grid point

Options Database Key

• -mat_strumpack_geometric_components dof - Number of components per mesh point, 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

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

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