MatCreateSeqBAIJWithArrays

 Creates an sequential BAIJ matrix using matrix elements (upper triangular entries in CSR format) provided by the user.

Synopsis

#include "petscmat.h" 
PetscErrorCode PETSCMAT_DLLEXPORT MatCreateSeqBAIJWithArrays(MPI_Comm comm,PetscInt bs,PetscInt m,PetscInt n,PetscInt* i,PetscInt*j,PetscScalar *a,Mat *mat)
Collective on MPI_Comm

Input Parameters

comm - must be an MPI communicator of size 1
bs - size of block
m - number of rows
n - number of columns
i - row indices
j - column indices
a - matrix values

Output Parameter

mat -the matrix

Notes

The i, j, and a arrays are not copied by this routine, the user must free these arrays once the matrix is destroyed

You cannot set new nonzero locations into this matrix, that will generate an error.

The i and j indices are 0 based

See Also

MatCreate(), MatCreateMPIBAIJ(), MatCreateSeqBAIJ()

Level:intermediate
Location:src/mat/impls/baij/seq/baij.c
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