#include "petscmat.h" PetscErrorCode MatCreateRedundantMatrix(Mat mat,PetscInt nsubcomm,MPI_Comm subcomm,MatReuse reuse,Mat *matredundant)Collective on Mat
mat | - the matrix | |
nsubcomm | - the number of subcommunicators (= number of redundant parallel or sequential matrices) | |
subcomm | - MPI communicator split from the communicator where mat resides in (or MPI_COMM_NULL if nsubcomm is used) | |
reuse | - either MAT_INITIAL_MATRIX or MAT_REUSE_MATRIX |
This routine creates the duplicated matrices in subcommunicators; you should NOT create them before calling it.