[Wien] parallel computation

[Peter Blaha]

I run routinely WIEN2k on 512 cores and it scales very well (with an appropriate (big) case).
(In two weeks I expect to be able to test it with up to 2000 cores (and I have little
doubt that it will not scale properly)

Since you do not provide any details, nobody can give you even the smallest hint,
except: usually Gigabit Ethernet is too slow for "fine grain mpi parallelization".

Am 23.09.2011 00:37, schrieb Yundi Quan:
> Does wien2k scale well with Gigabit Ethernet? I tried to run a job on
> 80 cores. They all have the same speed. However, it seems that one or
> two cores are lagging behind significantly. Is there anything I can do
> to make it scale well?
>
> Yundi
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                                       P.Blaha
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Peter BLAHA, Inst.f. Materials Chemistry, TU Vienna, A-1060 Vienna
Phone: +43-1-58801-15671             FAX: +43-1-58801-15698
Email: blaha at theochem.tuwien.ac.at    WWW: http://info.tuwien.ac.at/theochem/
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