petsc-3.7.5 2017-01-01
MatRestrict
y = A*x or A'*x
Synopsis
#include "petscmat.h"
PetscErrorCode MatRestrict(Mat A,Vec x,Vec y)
Neighbor-wise Collective on Mat
Input Parameters
| mat | - the matrix
|
| x,y | - the vectors
|
Notes
This allows one to use either the restriction or interpolation (its transpose)
matrix to do the restriction
See Also
MatMultAdd(), MatMultTransposeAdd(), MatInterpolate()
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
Examples
src/dm/examples/tutorials/ex65dm.c.html
src/snes/examples/tutorials/ex12.c.html