"R. M. Fesinmeyer" wrote:
>
> Hello -- I have two questions I'm hoping can be answered:
>
> 1) Are any benchmarks numbers available for dual Athlon and dual (P4) Xeon
> systems?
>
> Robert Fesinmeyer
I cut the part for networking, but i can give you an idea for a
dual-athlon pc :
The test described on
http://amber.ch.ic.ac.uk/archive/
for AMBER 6.0 on a Linux cluster with Mandrake 8.0 (kernel
2.4.3), mpich 1.2.1 and the latest gcc (2.96) and pgi (3.2)
compiler. The cluster consists of 4 nodes with one 1.33 GHz
Athlon CPU, 512 MB RAM and 20 GB disk space each. They are
connected via 100Mbit T-baseTx switched FastEthernet.
benchmark.6 (22000 atoms):
==========================
nCPU time
--------------------
1 176.4s
2 137.6s (x1.3)
4 100.4s (x1.8)
For my case, it was AMBER6.0 on a dual-athlon 1.2Ghz with 1024 Mo
DDR-registered, Redhat 7.1 (kernel 2.4.7) whith pmich 1.2.1 and
gcc2.96 :
benchmark.6 (22000 atoms):
==========================
nCPU time
--------------------
2 103.0s (x1.7)
Please note that gcc-2.96 is not so up-to-date, and that gcc-3.0
may be more efficient, because it contains optimisations for
athlon-based processors.
You see there that with a dual-athlon, with lower frequencies
(1.2 vs 1.33), you can obtain the same 'power' as that of 4
nodes.
It is quite the same price for the dual one or two boxes, so for
half the price, you can think about having not far from twice
'power' !
For the second part, you may have a look at
:http://www.scl.ameslab.gov/Projects/MP_Lite/
Hope this helps :-))
Stef
--
*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*
Teletchea Stephane - CNRS UMR 8601
Lab. de chimie et biochimie pharmacologiques et toxicologiques
45 rue des Saints-Peres 75270 Paris cedex 06
tel : (33) - 1 42 86 20 86 - fax : (33) - 1 42 86 83 87
mel : steletch_at_biomedicale.univ-paris5.fr
*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*
Received on Fri Oct 05 2001 - 01:34:15 PDT
