[Beowulf] Cluster Networking

Jeff Layton laytonjb at att.net
Fri Jun 26 14:30:06 EDT 2009


Dmitry Zaletnev wrote:
> Hi, I have two questions:
>
> 1. Is there any influence on performance of a NFS-server from the usage of x32 CPU and OS instead of x64, if all other characteristics of the system, i.e. amount of RAM, soft-SATA-II RAID 0, Realtek GLAN NIC are the same?
>
> 2. Is the Etherchannel technology (channel bonding) useful for CFD-application running on a cluster of two Dual-Xeon servers?
>   
CFD codes are usually latency sensitive. So channel bonding
doesn't buy you anything and may actually hurt (but just a little).
Try something like OpenMX over GigE. Much better latencies
and should perform and scale better.

Jeff


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