#include "petscmat.h" PetscErrorCode MatProductSetFill(Mat mat,PetscReal fill)Collective on Mat
| mat | - the matrix product | |
| fill | - expected fill as ratio of nnz(mat)/(nnz(A) + nnz(B) + nnz(C)); use PETSC_DEFAULT if you do not have a good estimate. If the product is a dense matrix, this is irrelevant. |