petsc-3.10.2 2018-10-09
Report Typos and Errors

MatInterpolateAdd

w = y + A*x or A'*x depending on the shape of the matrix

Synopsis

#include "petscmat.h" 
PetscErrorCode MatInterpolateAdd(Mat A,Vec x,Vec y,Vec w)
Neighbor-wise Collective on Mat

Input Parameters

mat - the matrix
x,y - the vectors
w - where the result is stored

Notes

w may be the same vector as y.

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

See Also

MatMultAdd(), MatMultTransposeAdd(), MatRestrict()

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