[gmx-users] Translational Pulling

Ray Chao xiaoainisa at gmail.com
Fri Apr 22 18:44:29 CEST 2016

​i, gmx users,

I want to simulate a system consisting two groups of atoms. One group of
atoms are pulled towards the other group to compress it. But I also want to
keep the atoms in pulling group "frozen". To be more specific, I want the
center of mass of one group translate. while the atoms within it keeps
relatively static. Can the pull code do this?

Thank you very much for your help. ​

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