KSPGMRESSetBreakdownTolerance#

Sets tolerance for determining divergence breakdown in KSPGMRES.

Synopsis#

Logically Collective

Input Parameters#

  • ksp - the Krylov space context

  • tol - the tolerance

Options Database Key#

  • -ksp_gmres_breakdown_tolerance - set tolerance for determining divergence breakdown

Note#

Divergence breakdown occurs when GMRES residual increases significantly during restart

See Also#

KSP: Linear System Solvers, KSPGMRES, KSPSetTolerances(), KSPGMRESSetHapTol()

Level#

intermediate

Location#

src/ksp/ksp/impls/gmres/gmres.c

Implementations#

KSPGMRESSetBreakdownTolerance_GMRES() in src/ksp/ksp/impls/gmres/gmres.c


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