BVOrthogRefineType#

Determines what type of iterative refinement to use during orthogonalization of vectors.

Synopsis#

Values#

Notes#

The default is to perform one step of iterative refinement if a certain numerical criterion holds. In ill-conditioned cases, a third orthogonalization can also be done.

Never refining is not recommended because it will generally make the eigensolver numerically unstable.

Always refining is numerically stable, but it often performs unnecessary computation.

See Also#

BV: Basis Vectors, BVSetOrthogonalization(), BVGetOrthogonalization(), BVOrthogonalizeColumn()

Level#

advanced

Location#

include/slepcbv.h


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