MatRestrict#

\(y = A*x\) or \(A^T*x\)

Synopsis#

#include "petscmat.h" 
PetscErrorCode MatRestrict(Mat A, Vec x, Vec y)

Neighbor-wise Collective

Input Parameters#

  • A - the matrix

  • x - the vector to be restricted

Output Parameter#

  • y - the resulting vector

Note#

This allows one to use either the restriction or interpolation (its transpose) matrix to do the restriction

See Also#

Matrices, Mat, MatMultAdd(), MatMultTransposeAdd(), MatInterpolate(), PCMG

Level#

intermediate

Location#

src/mat/interface/matrix.c

Examples#

src/ts/tutorials/ex29.c


Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages