petsc-3.13.1 2020-05-02
MatGetBrowsOfAcols
Creates a SeqAIJ matrix by taking rows of B that equal to nonzero columns of local A
Synopsis
#include "petscmat.h"
PetscErrorCode MatGetBrowsOfAcols(Mat A,Mat B,MatReuse scall,IS *rowb,IS *colb,Mat *B_seq)
Collective on Mat
Input Parameters
Output Parameter
| rowb, colb | - index sets of rows and columns of B to extract
|
| B_seq | - the sequential matrix generated
|
Level
developer
Location
src/mat/impls/aij/mpi/mpiaij.c
Implementations
MatGetBrowsOfAcols_MPIXAIJ in src/mat/impls/aij/mpi/mpiaij.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages