petsc-3.7.7 2017-09-25
MatGetOwnershipRangesColumn
Returns the range of matrix columns associated with rows of a vector one multiplies by that owned by this processor. (The columns of the "diagonal blocks" for each process)
Synopsis
#include "petscmat.h"
PetscErrorCode MatGetOwnershipRangesColumn(Mat mat,const PetscInt **ranges)
Not Collective, unless matrix has not been allocated, then collective on Mat
Input Parameters
mat -the matrix
Output Parameters
ranges -start of each processors portion plus one more then the total length at the end
See Also
MatGetOwnershipRange(), MatGetOwnershipRangeColumn(), MatGetOwnershipRanges()
Level:beginner
Location:src/mat/interface/matrix.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages