[Pw_forum] Do you think QE could get a considerable improved performance on AMD 6100 series CPUs

[vega lew]

Dear all,

We are considering a plan on building a small cluster (about 6 servers) for
QE. New version of AMD Opteron labeled with 6100 comes into market  earlier
in this year.

It is said the bandwidth of memory and number of cores of CPU are improved
greatly in the new architecture of AMD. We just wondering whether QE could
get a considerable improved performance on AMD 6100 series CPUs.

Is Opteron 6100 series with 12 cores or 8 cores CPU more suitable for QE
than intel XEON 5600 Series? Do you think 2.67G memory per core is feasible?

We also want to use InfiniBand to connect servers? Do you think the
infiniband with 20G bandwidth is suitable for the parallel computation task
of QE? or we should purchase more advanced infiniband with 40G bandwith and
a small improved delay of network.

Is there any benchmark on the performance of QE on Opteron CPUs?

best

vega

-- 
==================================================================================
Vega Lew ( weijia liu)
Graduate student
State Key Laboratory of Materials-oriented Chemical Engineering
College of Chemistry and Chemical Engineering
Nanjing University of Technology, 210009, Nanjing, Jiangsu, China
******************************************************************************************************************
Email: vegalew at gmail.com
Office: Room A705, Technical Innovation Building, Xinmofan Road 5#, Nanjing,
Jiangsu, China
******************************************************************************************************************
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.quantum-espresso.org/pipermail/users/attachments/20100624/407a1d70/attachment.html>