# KSP_NORM_NONE#

Do not compute a norm during the Krylov process. This will possibly save some computation but means the convergence test cannot be based on a norm of a residual etc.

Note: Some Krylov methods need to compute a residual norm (such as KPSGMRES) and then this option is ignored

KSPNormType, KSPSetNormType(), KSP_NORM_PRECONDITIONED, KSP_NORM_UNPRECONDITIONED, KSP_NORM_NATURAL