question about Intel P4 versus Alpha's

Henderson, TL Todd Todd_Henderson at
Wed Jan 8 11:49:14 PST 2003

These are P4 2.4 ghz and I didn't find anything in the bios about it.  I
thought I had read on Intel's website that hyperthreading was only in the
3.xx ghz P4's?


-----Original Message-----
From: Patrick Geoffray [mailto:patrick at]
Sent: Wednesday, January 08, 2003 1:38 PM
To: Henderson, TL Todd
Cc: 'beowulf at'
Subject: Re: question about Intel P4 versus Alpha's

Hi Todd,

On Wed, 2003-01-08 at 10:49, Henderson, TL Todd wrote:
> 95-100%cpu utilization range.  However, now we have a cluster of P4's and
> when I look at top, it is more like 70-80% cpu usage.  This is using the
> same number of cpu's, the same switch, same code, and same problem for the
> code.  The jobs are still completing in about 30-40% less time, so we are
> getting a speed up.

Is Hyper-threading enabled ?


Patrick Geoffray, Phd
Myricom, Inc.

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