PETSc version 3.17.4
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MatSTRUMPACKSetHSSMinSepSize

Set STRUMPACK minimum separator size for low-rank approximation

Synopsis

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

Input Parameters

F - the factored matrix obtained by calling MatGetFactor() from PETSc-STRUMPACK interface
hssminsize - minimum dense matrix size for low-rank approximation

Options Database

-mat_strumpack_hss_min_sep_size <hssminsize> - set the minimum separator size

References

* - STRUMPACK manual

See Also

MatGetFactor()

Level

beginner

Location

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

Examples

src/ksp/ksp/tutorials/ex52.c.html

Implementations

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

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