MatMumpsGetNullPivots#

Get MUMPS parameter PIVNUL_LIST()

Synopsis#

#include "petscmat.h"  
PetscErrorCode MatMumpsGetNullPivots(Mat F, PetscInt *size, PetscInt **array)

Logically Collective

Input Parameter#

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

Output Parameters#

  • size - local size of the array. The size of the array is non-zero only on the host.

  • array - array of rows with null pivot, these rows follow 0-based indexing. The array gets allocated within the function and the user is responsible for freeing this array.

References#

  • **** -*** MUMPS Users’ Guide

See Also#

Matrices, Mat, MatGetFactor(), MatMumpsSetIcntl(), MatMumpsGetIcntl(), MatMumpsSetCntl(), MatMumpsGetCntl(), MatMumpsGetInfo(), MatMumpsGetInfog(), MatMumpsGetRinfo()

Level#

beginner

Location#

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

Examples#

src/ksp/ksp/tutorials/ex52.c

Implementations#

MatMumpsGetNullPivots_MUMPS in src/mat/impls/aij/mpi/mumps/mumps.c

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