Do not calculate COM for pull group 0
commit3891bbbbc5f80e71b418ada70cc93c08911c301b
authorBerk Hess <hess@kth.se>
Fri, 23 Mar 2018 10:10:56 +0000 (23 11:10 +0100)
committerBerk Hess <hess@kth.se>
Tue, 3 Apr 2018 07:21:27 +0000 (3 09:21 +0200)
tree150c63fd79ecb5fcc28f603d3bcac5f693a71f63
parent3768943b7fac30f26a675a0e9fb960a6393cb24d
Do not calculate COM for pull group 0

Pull group 0 is an absolute reference with coordinates 0,0,0,
so it is clearer to never compute its center of mass.

Refs #2143

Change-Id: Ifa974ab84afe303594c3b65e9567e0568bb151a9
src/gromacs/pulling/pull.cpp
src/gromacs/pulling/pullutil.cpp