[Pw_forum] Something about the bandwith of memory

vega lew quantumdft at gmail.com
Sun Nov 8 16:32:58 CET 2009

Dear all,

Intel E5500 seriers CPU has a triple channel to enhance the bandwidth of the
memory. And sometime earlier, Axel told me that the bandwidth of memory is
one of the most important thing for the performance of QE. So we try to make
a contract with the seller of intel server based on XEON Nahelem processors.
But we find the bandwidth of memory is not only depends on the CPU,
chipset and memory module et al., but is also depends on something else. For
example, the server made by HP, and DELL of the same CPU an DDR3 memory
would show different bandwidth performance evaluating by ScienceMark v2.0.
But ScienceMark v2.0 only could be run in Windows. So I wonder is there a
small tool to test the bandwith of memory in Linux?

think you for reading


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/20091108/29f49e3e/attachment.html>

More information about the users mailing list