MatReorderingSeqSBAIJ

Prepare an updated index structure for a symmetric reordering of a MATSEQSBAIJ matrix.

Synopsis

PetscErrorCode MatReorderingSeqSBAIJ(Mat A, IS perm)

Not Collective

Input Parameters

• A - the MATSEQSBAIJ matrix

• perm - the (assumed symmetric) permutation to be applied

Notes

This routine currently raises PETSC_ERR_SUP; matrix reordering is not supported for MATSEQSBAIJ matrices, so callers should convert to MATSEQAIJ first.

The intent (unimplemented) is to compute a new index set (inew, jnew) for A and a value map so that all nonzero entries A(perm(i), perm(k)) are stored in the upper triangle; the matrix itself is not permuted.

See Also

Mat, MATSEQSBAIJ, MatGetOrdering(), MatPermute()

Level

developer

Location

src/mat/impls/sbaij/seq/sro.c

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