EPSLOBPCGSetRestart#

Sets the restart parameter for the LOBPCG method.

Synopsis#

#include "slepceps.h" 
PetscErrorCode EPSLOBPCGSetRestart(EPS eps,PetscReal restart)

Logically Collective

Input Parameters#

  • eps - the linear eigensolver context

  • restart - the percentage of the block of vectors to force a restart

Options Database Key#

  • -eps_lobpcg_restart - Sets the restart parameter

Notes#

The meaning of this parameter is the proportion of vectors within the current block iterate that must have converged in order to force a restart with hard locking. Allowed values are in the range [0.1,1.0]. The default is 0.9.

See Also#

EPS: Eigenvalue Problem Solver, EPSLOBPCGGetRestart()

Level#

advanced

Location#

src/eps/impls/cg/lobpcg/lobpcg.c

Implementations#

EPSLOBPCGSetRestart_LOBPCG() in src/eps/impls/cg/lobpcg/lobpcg.c

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