petsc-3.10.5 2019-03-28
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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 and Vec

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