PEPGetIterationNumber#

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

Synopsis#

#include "slepcpep.h" 
PetscErrorCode PEPGetIterationNumber(PEP pep,PetscInt *its)

Not Collective

Input Parameter#

  • pep - the polynomial eigensolver context

Output Parameter#

  • its - number of iterations

Note#

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

See Also#

PEP: Polynomial Eigenvalue Problems, PEPGetConvergedReason(), PEPSetTolerances()

Level#

intermediate

Location#

src/pep/interface/pepsolve.c

Examples#

src/pep/tutorials/ex17.c

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