[petsc-dev] consequences of setting KSP_NORM_TYPE to NONE

[Stefano Zampini]

As of today, a code like this

KSPSetNormType(ksp,KSP_NORM_NONE);
KSPSetFromOptions(ksp);

will produce a KSP that will always skip the convergence tests, even if we 
specify -ksp_norm_type whatever at command line. Is this the expected behavior?
If not, a tentative patch is attached. 

fix_norm_type_none.diff
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