回复：回复：回复：超级计算机的科普常识， 兼评中国超级计算机的第一

No, that's not a LAN based computer. But it could be a SMP structure which having a special scenario looks like a LAN.

Most HPC could be network linked multi CPU system, the network can be full mesh, SMP or hypercube which having different bandwidth and efficiency.SMP having issue when the CPU numbers goes high, usually when it goes above 20, the performance that the added CPU brings would be eaten by system cost. So design a new topology of links become a very challenging job for HPC designers. Since it need to consider what kind of O/S could be suitable for installation and provisioning in a parallel system.

At very begining, the HPC usually using a single CPU to get the system performance. But now, single CPU system is almost extinct, such as Cray, Thinking Machine, etc.

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• Agree! You are an expert. -827- ♂ (293 bytes) () 11/26/2010 postreply 17:45:02

• 回复：Agree! You are an expert. -初当老爸- ♂ (882 bytes) () 11/26/2010 postreply 23:45:53

• 回复：回复：Agree! You are an expert. -827- ♂ (839 bytes) () 11/27/2010 postreply 14:54:29