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<A NAME="KSP_NORM_NONE"><H1>KSP_NORM_NONE</H1></A>
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.
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Note: Some Krylov methods need to compute a residual norm and then this option is ignored
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<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../KSP/KSPNormType.html#KSPNormType">KSPNormType</A>, <A HREF="../KSP/KSPSetNormType.html#KSPSetNormType">KSPSetNormType</A>(), <A HREF="../KSP/KSP_NORM_PRECONDITIONED.html#KSP_NORM_PRECONDITIONED">KSP_NORM_PRECONDITIONED</A>, <A HREF="../KSP/KSP_NORM_UNPRECONDITIONED.html#KSP_NORM_UNPRECONDITIONED">KSP_NORM_UNPRECONDITIONED</A>, <A HREF="../KSP/KSP_NORM_NATURAL.html#KSP_NORM_NATURAL">KSP_NORM_NATURAL</A>
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/ksp/ksp/../../../include/petscksp.h.html#KSP_NORM_NONE">src/ksp/ksp/../../../include/petscksp.h</A>
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