petsc-3.12.5 2020-03-29
MatSetValuesRow
Inserts a row (block row for BAIJ matrices) of nonzero values into a matrix
Synopsis
#include "petscmat.h"
PetscErrorCode MatSetValuesRow(Mat mat,PetscInt row,const PetscScalar v[])
Not Collective
Input Parameters
| mat | - the matrix
|
| row | - the (block) row to set
|
| v | - a logically two-dimensional (column major) array of values for block matrices with blocksize larger than one, otherwise a one dimensional array of values
|
Notes
The values, v, are column-oriented for the block version.
All the nonzeros in the row must be provided
THE MATRIX MUST HAVE PREVIOUSLY HAD ITS COLUMN INDICES SET. IT IS RARE THAT THIS ROUTINE IS USED, usually MatSetValues() is used.
The row must belong to this process
See Also
MatSetOption(), MatAssemblyBegin(), MatAssemblyEnd(), MatSetValuesBlocked(), MatSetValuesLocal(),
InsertMode, INSERT_VALUES, ADD_VALUES, MatSetValues()
Level
advanced
Location
src/mat/interface/matrix.c
Implementations
MatSetValuesRow_MPIAIJ in src/mat/impls/aij/mpi/mpiaij.c
MatSetValuesRow_SeqAIJ in src/mat/impls/aij/seq/aij.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages