EPSGetIterationNumber

Gets the current iteration number. If the call to EPSSolve() is complete, then it returns the number of iterations carried out by the solution method.

Synopsis

#include "slepceps.h" 
PetscErrorCode EPSGetIterationNumber(EPS eps,PetscInt *its)

Not Collective

Input Parameter

• eps - the linear eigensolver context

Output Parameter

• its - number of iterations

Note

During the i-th iteration this call returns i-1. If EPSSolve() is complete, then parameter “its” contains either the iteration number at which convergence was successfully reached, or failure was detected. Call EPSGetConvergedReason() to determine if the solver converged or failed and why.

See Also

EPS: Eigenvalue Problem Solver, EPSGetConvergedReason(), EPSSetTolerances()

Level

intermediate

Location

src/eps/interface/epssolve.c

Examples

src/eps/tutorials/ex6f.F90
src/eps/tutorials/ex1.c
src/eps/tutorials/ex31.c
src/eps/tutorials/ex4.c
src/eps/tutorials/ex19.c
src/eps/tutorials/ex7.c

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