[Beowulf] Liinpack benchmark

Mikhail Kuzminsky kus at free.net
Tue Nov 1 11:09:39 EST 2005


In message from balamurugan <rbala at hclinsys.com> (Mon, 31 Oct 2005 
15:06:11 +0530):
>Dear all,
>Iam trying to benchmark a Xeon processor (Dual core) machine with 
>linpack (n=100) fortran code on Red Hat linux AS 4. The result gives 
>zero values for some calls. The details in the internet say that it 
>may be due to low resolution of the timing function. Can you help me 
>tuning the resolution of second function.

You should use gettimeofday()- based or RDTSC-based timer.

Yours
Mikhail Kuzminsky
Zelinsky Institute of Organic Chemistry
Moscow


>
>Regards,
>
>Balamurugan. R
>
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