PETSc version 3.17.5
MatProductReplaceMats
Replace input matrices for a matrix product.
Synopsis
#include "petscmat.h"
PetscErrorCode MatProductReplaceMats(Mat A,Mat B,Mat C,Mat D)
Collective on Mat
Input Parameters
| A | - the matrix or NULL if not being replaced
|
| B | - the matrix or NULL if not being replaced
|
| C | - the matrix or NULL if not being replaced
|
| D | - the matrix product
|
Notes
To reuse the symbolic phase, 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 changed but
the symbolic phase took advantage of their symmetry, the product is cleared and MatProductSetFromOptions()/MatProductSymbolic() are invoked again.
See Also
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