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Re^4: Firefly's parallel calculation: can't get fully CPU load

Alexey
alexfarlong56@gmail.com


A great thanks for clarification!


----------------------------------------------
>Hi,

>it seems you was using a very old version of the PC GAMESS.

>Yo do not have four cores. You only have two physical cores
>each with two logical processes.

>You should read this document:

>http://classic.chem.msu.su/gran/gamess/smp.htmlhttp://classic.chem.msu.su/gran/gamess/smp.htmlhttp://classic.chem.msu.su/gran/gamess/smp.htmlhttp://classic.chem.msu.su/gran/gamess/smp.html

>By default, Firefly binds itself to the every second logical core
>of a same physical core. This usually gives the best possible
>performance. Some types of jobs benefit of the use of all logical
>processors in parallel jobs. For these jobs, one needs to provide
>additional input:
>
>

$smp httfix=.f. $end

>
>Kind regards,
>Alex Granovsky
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