[gmx-developers] problem about Gromacs CVS version 3.3.99_development_200800503 parallel efficiency

[xuji]

Hi all

I have 3 nodes, and there're 8 CPUs in each node. I run a 24 processes mdrun on the three nodes. And I use MPICH2 environment. But the efficiency of the mdrun program is very low. The occupancy of each CPU is only about 10%. I don't know why. Can some one give me some help?

Appricaite any help in advance!

Best wishes!

Ji Xu
xuji at home.ipe.ac.cn

2008-06-20
　　　　　　　　　　　　　　
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