PETSc version 3.17.0
MatMatRestrict
Y = A*X or A'*X
Synopsis
#include "petscmat.h"
PetscErrorCode MatMatRestrict(Mat A,Mat x,Mat *y)
Neighbor-wise Collective on Mat
Input Parameters
| mat | - the matrix
|
| x | - the input dense matrix
|
Output Parameters
| y | - the output dense matrix
|
Notes
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
MatRestrict(), MatInterpolate(), MatMatInterpolate()
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