[gmx-users] Re: loab imbalance
zhao0139 at ntu.edu.sg
Tue Apr 6 13:39:30 CEST 2010
> On 6/04/2010 5:39 PM, lina wrote:
> > Hi everyone,
> > Here is the result of the mdrun which was performed on 16cpus. I am not
> > clear about it, was it due to using MPI reason? or some other reasons.
> > Writing final coordinates.
> > Average load imbalance: 1500.0 %
> > Part of the total run time spent waiting due to load imbalance: 187.5 %
> > Steps where the load balancing was limited by -rdd, -rcon and/or -dds:
> > X 0 % Y 0 %
> > NOTE: 187.5 % performance was lost due to load imbalance
> > in the domain decomposition.
> You ran an inefficient but otherwise valid computation. Check out the
> manual section on domain decomposition to learn why it was inefficient,
> and whether you can do better.
I search the "decomposition" keyword on Gromacs manual, no match found.
Are you positive about that? Thanks any way, but can you make it more
problem-solved-oriented, so I can easily understand.
Thanks and regards,
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