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

Input Parameters#

  • mat - the matrix

  • x - the input dense matrix to be multiplied

  • w - the input dense matrix to be added to the result

Output Parameter#

  • y - the output dense matrix

Note#

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#

Matrices, Mat, MatInterpolateAdd(), MatMatInterpolate(), MatMatRestrict(), PCMG

Level#

intermediate

Location#

src/mat/interface/matrix.c

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Index of all Mat routines
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Index of all manual pages