PEPConvergedReason

Reason an eigensolver was determined to have converged or diverged.

Synopsis

typedef enum {/* converged */
              PEP_CONVERGED_TOL                =  1,
              PEP_CONVERGED_USER               =  2,
              /* diverged */
              PEP_DIVERGED_ITS                 = -1,
              PEP_DIVERGED_BREAKDOWN           = -2,
              PEP_DIVERGED_SYMMETRY_LOST       = -3,
              PEP_CONVERGED_ITERATING          =  0} PEPConvergedReason;

Values

• PEP_CONVERGED_TOL - converged up to tolerance

• PEP_CONVERGED_USER - converged due to a user-defined condition

• PEP_DIVERGED_ITS - exceeded the maximum number of allowed iterations

• PEP_DIVERGED_BREAKDOWN - generic breakdown in method

• PEP_DIVERGED_SYMMETRY_LOST - pseudo-Lanczos was not able to keep symmetry

See Also

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

Level

intermediate

Location

include/slepcpep.h

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