PEPJDSetReusePreconditioner#

Sets a flag indicating whether the preconditioner must be reused or not.

Synopsis#

#include "slepcpep.h" 
PetscErrorCode PEPJDSetReusePreconditioner(PEP pep,PetscBool reusepc)

Logically Collective

Input Parameters#

  • pep - the eigenproblem solver context

  • reusepc - the reuse flag

Options Database Key#

  • -pep_jd_reuse_preconditioner - the reuse flag

Note#

The default value is False. If set to True, the preconditioner is built only at the beginning, using the target value. Otherwise, it may be rebuilt (depending on the fix parameter) at each iteration from the Ritz value.

See Also#

PEPJDGetReusePreconditioner(), PEPJDSetFix()

Level#

advanced

Location#

src/pep/impls/jd/pjd.c

Implementations#

PEPJDSetReusePreconditioner_JD() in src/pep/impls/jd/pjd.c

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