ksp_monitor and hypre/boomeramg

[Shao-Ching Huang]

Hi Matt:

I tried "-ksp_converged_reason" you suggested. With "-ksp_monitor", it
shows "due to CONVERGED_RTOL". Without "-ksp_monitor", it shows "due
to CONVERGED_ITS".

------------------
$ mpiexec -np 1 -machinefile mach ./ibm  -ksp_type richardson \
-pc_type hypre -pc_hypre_type boomeramg  -ksp_monitor \
-ksp_converged_reason | grep Linear

Linear solve converged due to CONVERGED_RTOL iterations 5

$ mpiexec -np 1 -machinefile mach ./ibm  -ksp_type richardson \
-pc_type hypre -pc_hypre_type boomeramg  \
-ksp_converged_reason | grep Linear

Linear solve converged due to CONVERGED_ITS iterations 0
------------------

Thanks,

Shao-Ching


On Tue, Nov 11, 2008 at 07:45:11PM -0600, Matthew Knepley wrote:
> 
> Nothing should change. You can try -ksp_converged_reason to see why it
> terminates. The best way is to put a breakpoint in KSPDefaultConverged()
> and check the convergence test.
> 
>   Matt
>