MatRestoreColumnIJ

Call after you are completed with the ia,ja indices obtained with MatGetColumnIJ().

Synopsis

#include "petscmat.h" 
PetscErrorCode MatRestoreColumnIJ(Mat mat, PetscInt shift, PetscBool symmetric, PetscBool inodecompressed, PetscInt *n, const PetscInt *ia[], const PetscInt *ja[], PetscBool *done)

Collective

Input Parameters

• mat - the matrix

• shift - 1 or zero indicating we want the indices starting at 0 or 1

• symmetric - PETSC_TRUE or PETSC_FALSE indicating the matrix data structure should be symmetrized

• inodecompressed - PETSC_TRUE or PETSC_FALSE indicating if the nonzero structure of the inodes or the nonzero elements is wanted. For MATBAIJ matrices the compressed version is always used.

Output Parameters

• n - size of (possibly compressed) matrix

• ia - the column pointers

• ja - the row indices

• done - PETSC_TRUE or PETSC_FALSE indicated that the values have been returned

See Also

Matrices, Mat, MatGetColumnIJ(), MatRestoreRowIJ()

Level

developer

Location

src/mat/interface/matrix.c

Implementations

MatRestoreColumnIJ_SeqAIJ() in src/mat/impls/aij/seq/aij.c
MatRestoreColumnIJ_SeqBAIJ() in src/mat/impls/baij/seq/baij.c

---

Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages