Re: [CentOS] HT (Hyper Threading) on CentOS 5.5

On Fri, Mar 9, 2012 at 1:35 PM, Sorin Srbu sorin.srbu@orgfarm.uu.se wrote:

-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of John R Pierce Sent: den 9 mars 2012 08:54 To: centos@centos.org Subject: Re: [CentOS] HT (Hyper Threading) on CentOS 5.5

On 03/08/12 11:44 PM, Sorin Srbu wrote:

...

I know there might be some negative performance issues with certain applications, but would you notice it in day-to-day use?

Hi Pierce

if you're using the server for pure floating point compute, don't run more threads than you have actual cores.

Not sure i understand about your earlier comment regarding pure floating point compute, help me understand with some examples.

Regards

Kaushal