[petsc-users] amg from hypre

[hxie at umn.edu]

I use left preconditioner. So the preconditioned residual should be less 
than 10e-6||b||_2+10e^-10. How to print the final preconditioned residual 
using the command line options? Or I will use -ksp_mpnitor to show all the 
residuals.

Hui


On Mar 8 2010, Jed Brown wrote:

>On 08 Mar 2010 11:50:46 -0600, hxie at umn.edu wrote:
>> 
>> I printed the real residuals by computing ||b-Ax||_2  at the last column:
>> 
>>  equation  iter    gm_its    gmres
>>  
>>  
>> --------------------------------------------------------------------------------
>> Linear solve converged due to CONVERGED_RTOL iterations 223
>>  field      1       223   0.414E+00
>                            ^^^^^^^^^
>
>How is there "nothing wrong" with this?
>
>Jed
>