[gmx-users] benchmark: buying a new cluster

[andrea spitaleri]

Hi all,
we are going to buy a new cluster and we are in doubt about the frequency to consider.
Basically, we have the possibility to buy either 18 nodes dual quad-core (18x8 cores) bearing
Intel-Xeon E5430 2.66 MHz and FSB 1333 MHz or 15 nodes dual quad-core (15x8 cores) bearing
Intel-Xeon E5462 2.8 MHz and FSB 1600 MHz. The latest seems to be **only** 10% faster then the first.
However, thinking to the new gromacs4, we are in doubt about the best solution. Is it better to have
a **nominal** 10% cpu faster or to have 24 further cores?

Thanks in advance for any welcome suggestion,

Regards

andrea


-- 
-------------------------------
Andrea Spitaleri PhD
Dulbecco Telethon Institute
c/o DIBIT Scientific Institute
Biomolecular NMR, 1B4
Via Olgettina 58
20132 Milano (Italy)
http://biomolecularnmr.ihsr.dom/
Tel: 0039-0226434348/5622/3497/4922
Fax: 0039-0226434153
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