Re: [AMBER] Showing error in energy minimization

From: case <case.biomaps.rutgers.edu>
Date: Sun, 2 Aug 2009 15:25:04 +0100

On Sun, Aug 02, 2009, bharat lakhani wrote:

> When i am minimizing my system by sander.It showing error like
> following.what does it mean.what i have to do.
>
> Frac coord min, max: -923749.038795444 923750.106780641
> The system has extended beyond
> the extent of the virtual box.

Wow. Take a look at the system to see if you have really bad energies. It's
probably easiest to set ntb=0 and igb=6 (assuming you have a vacuum system).
That will avoid the virutal box problems, and allow to debug other possible
problems -- probably a bad starting configuration. Be sure to set ntpr=1 if
the problem occurs near the beginning of the run.

....dac


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Received on Wed Aug 19 2009 - 20:08:20 PDT
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