Re: [gmx-users] xx of the xxxx bonded interactions couldn't be calculated

2013-06-07 Thread David van der Spoel

On 2013-06-07 04:12, Justin Lemkul wrote:



On 6/6/13 10:00 PM, Badamkhatan wrote:

Dear GMX-users

Recently i got this error and note from my MD2 simulation. I'm solvating
1-octanol to 1-octanol and calculating free energy differences. This
is the
last step of my calculation and previous steps are looking fine.
Basically i
followed Justin's free energy tutorial.
Here is
Note:
  A list of missing interactions:
 LJC Pairs NB of210 missing  1
   exclusions of  25308 missing  1

Molecule type '1-octanol'
the first 10 missing interactions, except for exclusions:
 LJC Pairs NB atoms3   25   global 325

Fatal error:
2 of the 57736 bonded interactions could not be calculated because some
atoms involved moved further apart than the multi-body cut-off
distance (1
nm) or the two-body cut-off distance (1 nm), see option -rdd, for
pairs and
tabulated bonds also see option -ddcheck

Please help me and suggest any idea to solve this problem?



Sounds like you're
http://www.gromacs.org/Documentation/Terminology/Blowing_Up.


It may also be the opposite, box shrinking under equilibration.

Try:

mdrun [options] -rdd 1.25



-Justin




--
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Dept. of Cell  Molec. Biol., Uppsala University.
Box 596, 75124 Uppsala, Sweden. Phone:  +46184714205.
sp...@xray.bmc.uu.sehttp://folding.bmc.uu.se
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[gmx-users] xx of the xxxx bonded interactions couldn't be calculated

2013-06-06 Thread Badamkhatan
Dear GMX-users

Recently i got this error and note from my MD2 simulation. I'm solvating
1-octanol to 1-octanol and calculating free energy differences. This is the
last step of my calculation and previous steps are looking fine. Basically i
followed Justin's free energy tutorial. 
Here is 
Note:
 A list of missing interactions:
LJC Pairs NB of210 missing  1
  exclusions of  25308 missing  1

Molecule type '1-octanol'
the first 10 missing interactions, except for exclusions:
LJC Pairs NB atoms3   25   global 325

Fatal error: 
2 of the 57736 bonded interactions could not be calculated because some
atoms involved moved further apart than the multi-body cut-off distance (1
nm) or the two-body cut-off distance (1 nm), see option -rdd, for pairs and
tabulated bonds also see option -ddcheck

Please help me and suggest any idea to solve this problem?





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Re: [gmx-users] xx of the xxxx bonded interactions couldn't be calculated

2013-06-06 Thread Justin Lemkul



On 6/6/13 10:00 PM, Badamkhatan wrote:

Dear GMX-users

Recently i got this error and note from my MD2 simulation. I'm solvating
1-octanol to 1-octanol and calculating free energy differences. This is the
last step of my calculation and previous steps are looking fine. Basically i
followed Justin's free energy tutorial.
Here is
Note:
  A list of missing interactions:
 LJC Pairs NB of210 missing  1
   exclusions of  25308 missing  1

Molecule type '1-octanol'
the first 10 missing interactions, except for exclusions:
 LJC Pairs NB atoms3   25   global 325

Fatal error:
2 of the 57736 bonded interactions could not be calculated because some
atoms involved moved further apart than the multi-body cut-off distance (1
nm) or the two-body cut-off distance (1 nm), see option -rdd, for pairs and
tabulated bonds also see option -ddcheck

Please help me and suggest any idea to solve this problem?



Sounds like you're http://www.gromacs.org/Documentation/Terminology/Blowing_Up.

-Justin

--


Justin A. Lemkul, Ph.D.
Research Scientist
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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