3x100Mbps: summary

Douglas Eadline deadline at plogic.com
Wed Oct 11 22:54:25 EDT 2000


On Wed, 11 Oct 2000 beowulf at seinfeld.engr.ucf.edu wrote:


--snip--
> 
> We have 16 compute nodes and one server/frontend.
> 
> Our setup is:
>   Motherboard:	SuperMicro P6DGE Intel BX
>   Processor(s):	Dual PII-350
>   Memory:	256MB PC100
>   HardDrive:	FUJITSU 8GB
>   Ethernet:	3 x Kingston KNE100TX (tulip)
>   OS:		RedHat 6.1
>   Kernel:	2.2.17
> 
> Does anyone know why the 3 channel network would perform worse then the 2
> channel network?  The only real differences between our setups is that we
> use SMP nodes, but you have faster processors.  I know that running in SMP
> under linux causes the network latency to increase, but could it be the
> cause of our 3 channel network problems?

The one thing you did not report was your switch setup.
This can have an effect.

Doug

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