[gmx-users] 1-4 interaction between X and Y at distance 1.804 which is larger than 1-4 table size 1.800 nm.

[Justin A. Lemkul]

TJ Mustard wrote:
> 
> 
> No this is a completely different error that occurs when the other (EM) 
> error does not.
> 

So, EM completes, but you then get this unstable system?  How well did EM 
converge?  Were the potential and maximum force acceptable?

Instabilities are generally caused by incorrect topologies or .mdp settings. 
Those are the first places I would look for sources of error.

-Justin

>  
> 
> Thank you,
> 
> TJ Mustard
> 
> On January 17, 2011 at 1:51 PM "Justin A. Lemkul" <jalemkul at vt.edu> wrote:
> 
>  >
>  >
>  > TJ Mustard wrote:
>  > >
>  > >
>  > > Hi all,
>  > >
>  > > 
>  > >
>  > > We have been running a lot of simulations on protein ligand
>  > > interactions, and my settings/setup/mdp files worked great for one
>  > > system. Then when we moved to a larger and more complicated system we
>  > > started getting mdrun 1-4 interaction errors in our MD.
>  > >
>  > > 
>  > >
>  > > We are running with heavyh and have correctly made our ligands with
>  > > acpype and edited to have heavyh.
>  > >
>  > > Same setup as our smaller simpler model, but keep getting these:
>  > >
>  > > 
>  > >
>  > > Warning: 1-4 interaction between X and Y at distance 1.804 which is
>  > > larger than 1-4 table size 1.800 nm.
>  > >
>  > > 
>  > >
>  > > The jobs will continue on and finish but we are worried about the error
>  > > that could be included with these errors.
>  > >
>  > > 
>  >
>  > Is this related to the other issue we're discussing?  If so, please 
> do not
>  > double-post, especially if you're including different information in 
> different
>  > threads.  It becomes a nightmare to try to keep track of.
>  >
>  > That particular error is usually not a good sign.  Normal, stable 
> simulations
>  > should not give such an error.
>  >
>  > -Justin
>  >
>  > >
>  > > 
>  > >
>  > > Any help would be appreciated. Also I can attach my mdp files.
>  > >
>  > > 
>  > >
>  > > Thank you,
>  > >
>  > > TJ Mustard
>  > > Email: mustardt at onid.orst.edu
>  > >
>  >
>  > --
>  > ========================================
>  >
>  > Justin A. Lemkul
>  > Ph.D. Candidate
>  > ICTAS Doctoral Scholar
>  > MILES-IGERT Trainee
>  > Department of Biochemistry
>  > Virginia Tech
>  > Blacksburg, VA
>  > jalemkul[at]vt.edu | (540) 231-9080
>  > http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin
>  >
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> 
>  
> 
> TJ Mustard
> Email: mustardt at onid.orst.edu
> 

-- 
========================================

Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
MILES-IGERT Trainee
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin

========================================