[petsc-users] Using GAMG to speed up solving of Poisson eqn

[Jed Brown]

TAY wee-beng <zonexo at gmail.com> writes:

> Ops, sorry, I just built the newest version but its environment variable 
> is still not changed. I have restarted it. Now :
>
> -poisson_pc_gamg_agg_nsmooths 1 -poisson_pc_type gamg
>
> hangs there for more than 10 mins.

Use a debugger to find out where it has hung.
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