MatSetOptionsPrefixFactor#

Sets the prefix used for searching for all matrix factor options in the database for for matrices created with MatGetFactor()

Synopsis#

#include "petscmat.h" 
PetscErrorCode MatSetOptionsPrefixFactor(Mat A, const char prefix[])

Logically Collective

Input Parameters#

  • A - the matrix

  • prefix - the prefix to prepend to all option names for the factored matrix

Notes#

A hyphen (-) must NOT be given at the beginning of the prefix name. The first character of all runtime options is AUTOMATICALLY the hyphen.

Normally the prefix is automatically passed in from the PC calling the factorization. To set it directly when not using KSP/PC use MatSetOptionsPrefixFactor()

See Also#

Matrices, Mat, Matrix Factorization, MatGetFactor(), MatSetFromOptions(), MatSetOptionsPrefix(), MatAppendOptionsPrefixFactor()

Level#

developer

Location#

src/mat/interface/matrix.c


Index of all Mat routines
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Index of all manual pages