MatProductReplaceMats#
Replace the input matrices for the matrix-matrix product operation inside the computed matrix
Synopsis#
#include "petscmat.h" 
PetscErrorCode MatProductReplaceMats(Mat A, Mat B, Mat C, Mat D)
Collective
Input Parameters#
- A - the matrix or - NULLif not being replaced
- B - the matrix or - NULLif not being replaced
- C - the matrix or - NULLif not being replaced
- D - the matrix whose values are computed via a matrix-matrix product operation 
Note#
To reuse the symbolic phase, the input matrices must have exactly the same data structure as the replaced one.
If the type of any of the input matrices is different than what was previously used, or their symmetry flag changed but
the symbolic phase took advantage of their symmetry, the product is cleared and MatProductSetFromOptions()
and MatProductSymbolic() are invoked again.
See Also#
Matrices, MatProduct, Mat, MatProductCreate(), MatProductSetFromOptions(), MatProductSymbolic(), MatProductClear()
Level#
intermediate
Location#
src/mat/interface/matproduct.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages