MatMatRestrict#
Y = A*X or A’*X
Synopsis#
#include "petscmat.h"
PetscErrorCode MatMatRestrict(Mat A, Mat x, Mat *y)
Neighbor-wise Collective
Input Parameters#
mat - the matrix
x - the input dense matrix
Output Parameter#
y - the output dense matrix
Note#
This allows one to use either the restriction or interpolation (its transpose)
matrix to do the restriction. y matrix can be reused if already created with the proper sizes,
otherwise it will be recreated. y must be initialized to NULL if not supplied.
See Also#
Matrices, Mat, MatRestrict(), MatInterpolate(), MatMatInterpolate(), PCMG
Level#
intermediate
Location#
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages