[Computer-go] pachi2

[Hideki Kato]

Jean-loup Gailly: <AANLkTimn9XKVOj_wDXOAtXqoF03+ogwnuHcx2A2rMkbB at mail.gmail.com>:
>> Don't you use broadcasting or multicasting?
>
>I don't. But I don't think the network is the bottleneck. I am
>far from saturating the network.

The bandwidth seems not a problem but how about the latency or 
delay?  Your packet-size is pretty larger than mine and a network 
interface (assuming one for a node comupter) sends packets in 
seccession with TCP.  UDP reduces maximum delay time to 1/(number of 
nodes to send).

>> How's about the network devices?  The cluster uses InfiniBand or similar
>> high speed interface devices?
>
>Standard Ethernet.

That is, usual 1 Giga bit Ethernet?  Sorry for asking again, 
because HPC clusters' standard is 10 Giga bit or more.

>> What's the processor?  Intel Xeon or IBM Power?
>
>x86 architecture, 64 bits.

Thanks a lot,

Hideki

>Jean-loup
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Hideki Kato <mailto:hideki_katoh at ybb.ne.jp>