slepc-main 2024-11-22

NEPSetTolerances

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

Synopsis

#include "slepcnep.h" 
PetscErrorCode NEPSetTolerances(NEP nep,PetscReal tol,PetscInt maxits)

Logically Collective

Input Parameters

	nep	- the nonlinear eigensolver context
	tol	- the convergence tolerance
	maxits	- maximum number of iterations to use

Options Database Keys

	-nep_tol <tol>	- Sets the convergence tolerance
	-nep_max_it <maxits>	- 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.

Level

intermediate

Location

src/nep/interface/nepopts.c

Examples

src/nep/tutorials/ex20.c
src/nep/tutorials/ex20f.F90
src/nep/tutorials/ex22.c
src/nep/tutorials/ex22f.F90

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