Min should also be 1, no?

On Mar 30, 2012 9:26 AM, "Mark F. Adams" <mark.adams@columbia.edu> wrote:

I've had problems with GMRES and eigen estimates in the past but I now have a smoking gun.  It seems that if you give GMRES an operator preconditioned with LU (ie, the preconditioned operator is the identity) GMRES gives me a highest eigen estimate of ~10 (way off).  With CG I get a prefect max=1.0, min=0.0.

Any thoughts?

Mark