DSHSVDSetReorthogonalize#

Sets the reorthogonalization of the left vectors in a DSHSVD.

Synopsis#

#include "slepcds.h" 
PetscErrorCode DSHSVDSetReorthogonalize(DS ds,PetscBool reorth)

Logically Collective

Input Parameters#

  • ds - the direct solver context

  • reorth - the reorthogonalization flag

Options Database Key#

  • -ds_hsvd_reorthog - sets the reorthogonalization flag

Note#

The computed left vectors (U) should be orthogonal with respect to the signature (D). But it may be necessary to enforce this with a final reorthogonalization step (omitted by default).

See Also#

DSHSVDGetReorthogonalize()

Level#

intermediate

Location#

src/sys/classes/ds/impls/hsvd/dshsvd.c

Implementations#

DSHSVDSetReorthogonalize_HSVD() in src/sys/classes/ds/impls/hsvd/dshsvd.c

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