AMBER Archive (2009)
Subject: [AMBER] Re: Verlet update time in explicit water Replica Exchange MD
From: Da-Wei Li (lidawei_at_gmail.com)
Date: Wed Nov 25 2009 - 11:12:23 CST
Just provide more information. This strange thing does not happen if
all processors are in one node.
On Wed, Nov 25, 2009 at 12:05 PM, Da-Wei Li <lidawei_at_gmail.com> wrote:
> Dear All:
> I recently try explicit water replica exchange MD using Amber9. The md
> run is very slow, compared with normal constant T runs. A close look
> at the profile_mpi reveals that "Verlet update time" take about 3/4 of
> the CPU times at processor 0. This is not normal. This does not happen
> with constant T MD. I use CentOS and mvapich2.
> Anyone has some idea?
AMBER mailing list