slepc-main 2024-12-17
SVDTRLanczosSetLocking
Choose between locking and non-locking variants of the thick-restart Lanczos method.
Synopsis
#include "slepcsvd.h"
PetscErrorCode SVDTRLanczosSetLocking(SVD svd,PetscBool lock)
Logically Collective
Input Parameters
| svd | - the singular value solver
|
| lock | - true if the locking variant must be selected
|
Options Database Key
| -svd_trlanczos_locking | - Sets the locking flag
|
Notes
The default is to lock converged singular triplets when the method restarts.
This behaviour can be changed so that all directions are kept in the
working subspace even if already converged to working accuracy (the
non-locking variant).
See Also
SVDTRLanczosGetLocking()
Level
advanced
Location
src/svd/impls/trlanczos/trlanczos.c
Index of all SVD routines
Table of Contents for all manual pages
Index of all manual pages