SVDConvergedReason

Reason a singular value solver was determined to have converged or diverged.

Synopsis

typedef enum {/* converged */
              SVD_CONVERGED_TOL                =  1,
              SVD_CONVERGED_USER               =  2,
              SVD_CONVERGED_MAXIT              =  3,
              /* diverged */
              SVD_DIVERGED_ITS                 = -1,
              SVD_DIVERGED_BREAKDOWN           = -2,
              SVD_DIVERGED_SYMMETRY_LOST       = -3,
              SVD_CONVERGED_ITERATING          =  0 } SVDConvergedReason;

Values

• SVD_CONVERGED_TOL - converged up to tolerance

• SVD_CONVERGED_USER - converged due to a user-defined condition

• SVD_CONVERGED_MAXIT - reached maximum number of iterations with SVD_CONV_MAXIT criterion

• SVD_DIVERGED_ITS - exceeded the maximum number of allowed iterations

• SVD_DIVERGED_BREAKDOWN - generic breakdown in method

• SVD_DIVERGED_SYMMETRY_LOST - underlying indefinite eigensolver was not able to keep symmetry

• SVD_CONVERGED_ITERATING - the solver is still running

See Also

SVD: Singular Value Decomposition, SVDSolve(), SVDGetConvergedReason(), SVDSetTolerances()

Level

intermediate

Location

include/slepcsvd.h

Examples

src/svd/tests/test12.c
src/svd/tests/test4.c
src/svd/tests/test4f.F90

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