MatGetColumnVector#
Gets the values from a given column of a matrix.
Synopsis#
#include "petscmat.h"
PetscErrorCode MatGetColumnVector(Mat A, Vec yy, PetscInt col)
Not Collective
Input Parameters#
A - the matrix
yy - the vector
col - the column requested (in global numbering)
Notes#
If a MatType does not implement the operation, each processor for which this is called
gets the values for its rows using MatGetRow().
The vector must have the same parallel row layout as the matrix.
Contributed by: Denis Vanderstraeten
See Also#
Matrices, Mat, MatGetRow(), MatGetDiagonal(), MatMult()
Level#
advanced
Location#
Implementations#
MatGetColumnVector_MPIDense() in src/mat/impls/dense/mpi/mpidense.c
MatGetColumnVector_SeqDense() in src/mat/impls/dense/seq/dense.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages