EPSSetTolerances#

Sets the tolerance and maximum iteration count used by the EPS convergence tests.

Synopsis#

#include "slepceps.h" 
PetscErrorCode EPSSetTolerances(EPS eps,PetscReal tol,PetscInt maxits)

Logically Collective

Input Parameters#

  • eps - the linear eigensolver context

  • tol - the convergence tolerance

  • maxits - maximum number of iterations to use

Options Database Keys#

  • -eps_tol - Sets the convergence tolerance

  • -eps_max_it - Sets the maximum number of iterations allowed

Notes#

Use PETSC_CURRENT to retain the current value of any of the parameters. Use PETSC_DETERMINE for either argument to assign a default value computed internally (may be different in each solver). For maxits use PETSC_UMLIMITED to indicate there is no upper bound on this value.

See Also#

EPS: Eigenvalue Problem Solver, EPSGetTolerances()

Level#

intermediate

Location#

src/eps/interface/epsopts.c

Examples#

src/eps/tutorials/ex30.c
src/eps/tutorials/ex19.c
src/eps/tutorials/ex47.c

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