petsc-3.7.7 2017-09-25
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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
Index of all Mat routines
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Index of all manual pages