64 nodes behaviour

From: Alexandre Chauvin (chauvin.alexandre_at_laposte.net)
Date: Thu Sep 02 2004 - 12:53:23 CDT

Hello,

I just ran namd with 64 processors on 32 opteron nodes and I
have experienced a weird bahaviour for namd.

I have 500 steps apoa as test case. From 1 to 200, it runs
quite slowly and then after step 200, it goes really fast.

Can someone exlpain that or have had similar experience?

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