[Trilinos-Users] ML Visualization

Jonathan Hu jhu at sandia.gov
Thu Jul 10 11:23:39 MDT 2008

Hi Rony,

The option "viz: print starting solution" will cause ML to print the 
random initial guess that is used to evaluate the smoother's effect on 
the problem Ax = 0.

> Message: 1
> Date: Tue, 1 Jul 2008 08:50:45 +0000
> From: "Rony Speck" <speckro at hotmail.com>
> Subject: [Trilinos-Users] ML Visualization
> To: trilinos-users at software.sandia.gov
> Message-ID: <BAY119-W26B749710F823541EECC8BBC9E0 at phx.gbl>
> Content-Type: text/plain; charset=iso-8859-1
> Hello again
> I'm not sure, if I understood the procedure of visualizing the effect of the ML preconditioner correctly.
> According to the ML-user-guide the effect on a random vector is analyzed. My question now is,
> what is this vector? Is it the starting solution that can be printed out by setting the parameter
> "viz: print starting solution" to true? In this case the right-hand-side would be chosen randomly.
> Thank you very much for clarification
> Rony Speck

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