[SCore-users-jp] Re: [SCore-users] Procedure for adjusting networking parameters

[Atsushi HORI]

Hi,

>Does anyone have a "best practices" procedure that they'd like to share
>on how they adjust their networking parameters for highest performance?

What is the definition of "performance" ?

Althought many people believe that the communication perfomance can 
be measured with latency and bandwidth, but as far as I know, those 
latency and bandwidth are representing some aspects of communication 
characteristics. Have you ever heard of the LogP model ? This is 
another performance measure of communication, but still LogP 
represents some aspects, not all.

Further, cluster users want to run their jobs as fast as they could. 
So the ultimate goal is to obtain the highest performance of 
applications, not the communication. Somtimes application performace 
depends on the latency and bandwidth, but sometimes not.

----
Atsushi HORI
SCore Developer
Swimmy Software, Inc.

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