PEPJDSetRestart#

Sets the restart parameter for the Jacobi-Davidson method, in particular the proportion of basis vectors that must be kept after restart.

Synopsis#

#include "slepcpep.h" 
PetscErrorCode PEPJDSetRestart(PEP pep,PetscReal keep)

Logically Collective

Input Parameters#

  • pep - the polynomial eigensolver context

  • keep - the number of vectors to be kept at restart

Options Database Key#

  • -pep_jd_restart - Sets the restart parameter

Notes#

Allowed values are in the range [0.1,0.9]. The default is 0.5.

See Also#

PEP: Polynomial Eigenvalue Problems, PEPJDGetRestart()

Level#

advanced

Location#

src/pep/impls/jd/pjd.c

Implementations#

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

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