petsc-3.6.2 2015-10-02
   
MatFindOffBlockDiagonalEntries
Finds all the rows of a matrix that have entries outside of the main diagonal block (defined by the matrix block size) 
Synopsis
#include "petscmat.h" 
PetscErrorCode  MatFindOffBlockDiagonalEntries(Mat mat,IS *is)
Collective on Mat
Input Parameter
mat  -the matrix
Output Parameter
is  -contains the list of rows with off block diagonal entries
See Also
 MatMultTranspose(), MatMultAdd(), MatMultTransposeAdd()
Level:developer
Location:src/mat/interface/matrix.c
Index of all Mat routines
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Index of all manual pages