MatSTRUMPACKSetHSSMinSepSize#

Set STRUMPACK minimum separator size for low-rank approximation

Synopsis#

#include "petscmat.h" 
PetscErrorCode MatSTRUMPACKSetHSSMinSepSize(Mat F, PetscInt hssminsize)

Logically Collective

Input Parameters#

  • F - the factored matrix obtained by calling MatGetFactor()

  • hssminsize - minimum dense matrix size for low-rank approximation

Options Database Key#

  • -mat_strumpack_hss_min_sep_size - set the minimum separator size

References#

  • **** -*** STRUMPACK manual

See Also#

Matrices, Mat, MatGetFactor(), MatSTRUMPACKSetReordering(), MatSTRUMPACKSetColPerm(), MatSTRUMPACKSetHSSRelTol(), MatSTRUMPACKSetHSSAbsTol(), MatSTRUMPACKSetHSSMaxRank(), MatSTRUMPACKSetHSSLeafSize()

Level#

beginner

Location#

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

Examples#

src/ksp/ksp/tutorials/ex52.c

Implementations#

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

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