petsc-3.13.6 2020-09-29
MatGetRowSum
Gets the sum of each row of the matrix
Synopsis
#include "petscmat.h"
PetscErrorCode MatGetRowSum(Mat mat, Vec v)
Logically or Neighborhood Collective on Mat
Input Parameters
mat -the matrix
Output Parameter
v -the vector for storing the sum of rows
Notes
This code is slow since it is not currently specialized for different formats
See Also
MatGetDiagonal(), MatCreateSubMatrices(), MatCreateSubMatrix(), MatGetRowMax(), MatGetRowMin()
Level
intermediate
Location
src/mat/interface/matrix.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages