NEPGetIterationNumber#

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

Synopsis#

#include "slepcnep.h" 
PetscErrorCode NEPGetIterationNumber(NEP nep,PetscInt *its)

Not Collective

Input Parameter#

  • nep - the nonlinear eigensolver context

Output Parameter#

  • its - number of iterations

Note#

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

See Also#

NEP: Nonlinear Eigenvalue Problems, NEPGetConvergedReason(), NEPSetTolerances()

Level#

intermediate

Location#

src/nep/interface/nepsolve.c

Examples#

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

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