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Re: KSP/PC choice
Dear gaatenek
On Mon, 23 Jul 2007, gaatenek@xxxxxxxx wrote:
Do you monitoring the convergence? Try it a see if you have stagnation in
your convergence.
Yes, I monitor it, but that doesn't seem to give me any helpful
information -- except that it stagnates of course.
However you can try this setting,
-ksp_type gmres
-ksp_gmres_restart 30
-pc_type asm
-pc_asm_overlap 2
-sub_pc_type ilu
-sub_pc_factor_zeropivot 0
-sub_pc_ilu_levels 3
Thank you, I tried it, and it worked well for a test case. However,
for the real application, the PC eats up all my memory (even in cases
where my former setting did work).
Any hints (except buying a larger computer)?
Might some sub_ksp method help?
Best Regards,
Tim
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