Hi all If I have a topology with set up below (excerpts). And define energy groups in the .mdp file say 'virtsites' and 'endgroup' in correspondence with the index file. Will defining energygrp_exl 'virtsites' and 'endgroup' prevent nonbonding interactions between any atom in either of these groups. Also will all other nonbonding interactions stated in the topology remain the same?
Many Thanks Gavin ;Parameter level [defaults] ; nbfunc comb-rule gen-pairs fudgeLJ fudgeQQ 1 3 yes 0.5 0.5 [atomtypes] ;type mass charge ptype sigma(nm) epsilon(kjmol-1) CB 12.011000 0.000000 A 0.355000 0.292880 CA 12.011000 -0.115000 A 0.355000 0.292880 HC 1.008000 0.115000 A 0.242000 0.125520 CU 13.019000 0.265000 A 0.350000 0.334720 NU 14.007000 -0.597000 A 0.325000 0.711280 CH 13.019000 0.332000 A 0.385000 0.334720 C3 15.035000 0.000000 A 0.391000 0.669440 C2 14.027000 0.000000 A 0.390500 0.493712 VS 0.0 0.0 V 0.0 0.0 [nonbond_params] ;i j funct sigma epsilon VS C3 1 0.1 0.03153 -- gmx-users mailing list gmx-users@gromacs.org http://lists.gromacs.org/mailman/listinfo/gmx-users Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/Search before posting! Please don't post (un)subscribe requests to the list. Use the www interface or send it to gmx-users-requ...@gromacs.org. Can't post? Read http://www.gromacs.org/Support/Mailing_Lists