MatMumpsGetNullPivots

Get MUMPS parameter PIVNUL_LIST() https://mumps-solver.org/index.php?page=doc

Synopsis

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

Logically Collective

Input Parameter

• F - the factored matrix obtained by calling MatGetFactor() with a MatSolverType of MATSOLVERMUMPS and a MatFactorType of MAT_FACTOR_LU or MAT_FACTOR_CHOLESKY

Output Parameters

• size - local size of the array. The size of the array is non-zero only on MPI rank 0

• 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.

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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