Dear Justin, I switched Chain_A and Chain_B in the .mdp file, but got the same result. In the tutorial: pull-ngroups: (1) The number of pull groups, not including the absolute reference group, when used. And we need to assign the Chain_B as the reference group.
Thanks, Ming -----Original Message----- From: gromacs.org_gmx-users-boun...@maillist.sys.kth.se [mailto:gromacs.org_gmx-users-boun...@maillist.sys.kth.se] On Behalf Of Justin Lemkul Sent: Thursday, 12 March 2015 9:50 PM To: gmx-us...@gromacs.org Subject: Re: [gmx-users] umbrella sampling tutorial On 3/12/15 2:41 AM, Ming Tang wrote: > > Dear Justin, > > The results turned out that the COM distance between them is the same over > time, seems that both Chain_A and Chain_B had been pulled by the same force > in the same direction, which is different from the tutorial. > Switch Chain_A and Chain_B in the .mdp file. -Justin -- ================================================== Justin A. Lemkul, Ph.D. Ruth L. Kirschstein NRSA Postdoctoral Fellow Department of Pharmaceutical Sciences School of Pharmacy Health Sciences Facility II, Room 629 University of Maryland, Baltimore 20 Penn St. Baltimore, MD 21201 jalem...@outerbanks.umaryland.edu | (410) 706-7441 http://mackerell.umaryland.edu/~jalemkul ================================================== -- Gromacs Users mailing list * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting! * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists * For (un)subscribe requests visit https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or send a mail to gmx-users-requ...@gromacs.org. -- Gromacs Users mailing list * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting! * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists * For (un)subscribe requests visit https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or send a mail to gmx-users-requ...@gromacs.org.
