petsc-3.7.5 2017-01-01
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MatFindZeroDiagonals

 Finds all the rows of a matrix that have zero or no entry in the matrix

Synopsis

#include "petscmat.h" 
PetscErrorCode MatFindZeroDiagonals(Mat mat,IS *is)
Collective on Mat

Input Parameter

mat -the matrix

Output Parameter

is -if any rows have zero diagonals this contains the list of them

See Also

MatMultTranspose(), MatMultAdd(), MatMultTransposeAdd()

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