slepc-main 2024-11-09
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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 <bool>  - 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

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