Hyperthreading vs performance

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meteoadriatic
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Joined: Wed Aug 19, 2009 10:05 am

Re: Hyperthreading vs performance

Post by meteoadriatic » Fri Mar 28, 2014 5:36 pm

Interesting!

wilsors
Posts: 1
Joined: Wed Dec 31, 2014 5:39 pm

Re: Hyperthreading vs performance

Post by wilsors » Wed Dec 31, 2014 6:02 pm

So you've demonstrated multi-threading causes the WRF modeling to slow down, but have we tried to run two separate instances of WRF simultaeously, where the second instance is using the second available hyperthread core? IE, allocating adjacent processing with those same HT cores with two separate model runs, 4 on each. This way, we aren't wasting the HT capability.

Edit: I think this may have to be done in a VM environment

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