petsc-3.10.5 2019-03-28
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# 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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