petsc-master 2020-12-02
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MatGetOptionsPrefix

Gets the prefix used for searching for all Mat options in the database.

Synopsis

#include "petscmat.h" 
PetscErrorCode MatGetOptionsPrefix(Mat A,const char *prefix[])
Not Collective

Input Parameter

A - the Mat context

Output Parameter

prefix - pointer to the prefix string used

Notes

On the fortran side, the user should pass in a string 'prefix' of sufficient length to hold the prefix.

See Also

MatAppendOptionsPrefix()

Level

advanced

Location

src/mat/interface/matrix.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages