On 8/28/13 1:21 PM, Albert wrote:
On 08/28/2013 07:07 PM, Justin Lemkul wrote:
WARNING 2 [file helix.itp, line 1]:
   Too few parameters on line (source file toppush.c, line 1501)

Looks concerning - what's line 1?
here is the initial lines:

; position restraints for part of C-alpha of Protein

[ position_restraints ]
;  i funct       fcx        fcy        fcz
    5    1        300        300        300
   24    1        300        300        300



Looks normal, so without context of how it is #included, there's not much to diagnose here.



WARNING 3 [file md.mdp]:
   The sum of the two largest charge group radii (13.715767) is larger than
   rlist (1.000000)


How big is your box?  This may very well be a simple periodicity issue.

http://www.gromacs.org/Documentation/Errors#The_sum_of_the_two_largest_charge_group_radii_(X)_is_larger_than.c2.a0rlist_-_rvdw.2frcoulomb


-Justin

I've see this informations from gromacs website. my box is:

    6.96418   6.96418   9.77176

in the last line of my input .gro file.

I don't understand, why this warning not appear in 4.6.3, but failed in 
4.5.5....


The misinterpretation of periodicity in warning 3 was a bug that was fixed at some point, so the fact that it doesn't show up in 4.6.3 makes sense.

-Justin

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

Justin A. Lemkul, Ph.D.
Postdoctoral Fellow

Department of Pharmaceutical Sciences
School of Pharmacy
Health Sciences Facility II, Room 601
University of Maryland, Baltimore
20 Penn St.
Baltimore, MD 21201

jalem...@outerbanks.umaryland.edu | (410) 706-7441

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