Semetric processing and TOP.

Markku Kolkka markkukolkka at
Wed Sep 22 10:31:53 UTC 2004

Neil Marjoram kirjoitti viestissään (lähetysaika keskiviikko, 22. 
syyskuuta 2004 12:59):
> I have just commissioned a 2 x Xeon 2.8Ghz 512MB 533Mhz FSB
> compute node for research work.
> (...)
> Also I note from the output from top that the two processes
> each consume 99.9% of CPU, but the total user at the top is
> 50%, and the idle is 50%.

The CPUs are hyperthreaded and the OS sees them as four CPUs.

 Markku Kolkka
 markku.kolkka at

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