[gmx-users] inconsistency in obtained temperature values by traj and g_energy tools

Justin Lemkul jalemkul at vt.edu
Sun Jul 13 03:29:07 CEST 2014



On 7/12/14, 7:25 AM, Rasoul Nasiri wrote:
> On Sat, Jul 12, 2014 at 12:17 PM, Tsjerk Wassenaar <tsjerkw at gmail.com>
> wrote:
>
>> Note that two constrained atoms correspond to one constraint.
>>
>>
>
>
> C12H26
>
> 26 constrained atoms due to hydrogens which have been connected to carbon
> atoms.
>
> Number of molecules 2550 therefore  66300 will be total constrained atoms
> in cell.
>

Note that grompp makes your life easy by printing out the corrected number of 
degrees of freedom.  It should be 3N - 0.5*N_constraints.

-Justin

-- 
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Justin A. Lemkul, Ph.D.
Ruth L. Kirschstein NRSA Postdoctoral Fellow

Department of Pharmaceutical Sciences
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University of Maryland, Baltimore
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Baltimore, MD 21201

jalemkul at outerbanks.umaryland.edu | (410) 706-7441
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