MatFactorGetCanUseOrdering#

Indicates if the factorization can use the ordering provided in MatLUFactorSymbolic(), MatCholeskyFactorSymbolic()

Synopsis#

#include "petscmat.h" 
PetscErrorCode MatFactorGetCanUseOrdering(Mat mat, PetscBool *flg)

Logically Collective

Input Parameter#

  • mat - the matrix

Output Parameter#

Note#

Most internal PETSc factorizations use the ordering passed to the factorization routine but external packages do not, thus we want to skip generating the ordering when it is not needed or used.

See Also#

Matrices, Mat, Matrix Factorization, MatCopy(), MatDuplicate(), MatGetFactorAvailable(), MatGetFactor(), MatLUFactorSymbolic(), MatCholeskyFactorSymbolic()

Level#

developer

Location#

src/mat/interface/matrix.c

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