petsc-3.10.5 2019-03-28
MatMPISBAIJSetPreallocationCSR
Allocates memory for a sparse parallel matrix in BAIJ format (the default parallel PETSc format).
Synopsis
#include "petscmat.h"
PetscErrorCode MatMPISBAIJSetPreallocationCSR(Mat B,PetscInt bs,const PetscInt i[],const PetscInt j[], const PetscScalar v[])
Collective on MPI_Comm
Input Parameters
| B | - the matrix
|
| bs | - the block size
|
| i | - the indices into j for the start of each local row (starts with zero)
|
| j | - the column indices for each local row (starts with zero) these must be sorted for each row
|
| v | - optional values in the matrix
|
Keywords
matrix, aij, compressed row, sparse, parallel
See Also
MatCreate(), MatCreateSeqAIJ(), MatSetValues(), MatMPIBAIJSetPreallocation(), MatCreateAIJ(), MPIAIJ
Level
developer
Location
src/mat/impls/sbaij/mpi/mpisbaij.c
Implementations
MatMPISBAIJSetPreallocationCSR_MPISBAIJ in src/mat/impls/sbaij/mpi/mpisbaij.c
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