slepc-3.21.1 2024-04-26
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EPSArnoldiSetDelayed

Activates or deactivates delayed reorthogonalization in the Arnoldi iteration.

Synopsis

#include "slepceps.h" 
PetscErrorCode EPSArnoldiSetDelayed(EPS eps,PetscBool delayed)
Logically Collective

Input Parameters

eps  - the eigenproblem solver context
delayed  - boolean flag

Options Database Key

-eps_arnoldi_delayed  - Activates delayed reorthogonalization in Arnoldi

Note

Delayed reorthogonalization is an aggressive optimization for the Arnoldi eigensolver than may provide better scalability, but sometimes makes the solver converge less than the default algorithm.

See Also

EPSArnoldiGetDelayed()

Level

advanced

Location

src/eps/impls/krylov/arnoldi/arnoldi.c

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