PETSc version 3.15.4
Fix/Edit manual page

MatMatInterpolateAdd

Y = W + A*X or W + A'*X

Synopsis

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

Input Parameters

mat - the matrix
w, x - the input dense matrices

Output Parameters

y - the output dense matrix

Notes

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

MatInterpolateAdd(), MatMatInterpolate(), MatMatRestrict()

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