From: David Case <>
Date: Fri, 3 Oct 2003 00:43:43 -0700

On Thu, Oct 02, 2003, Pradipta Bandyopadhyay wrote:
> I am trying to learn how SHAKE is done (not the fast shake routines) for
> massless points in AMBER (e.g. for the 4th point in TIP4P). I would
> appreciate very much if someone tells me where in shake.f it is done.

The massless points are not shaken on Amber, only the H and O atoms; then
the 4th point is built from the (shaken) coordinates of the three real
atoms. Code is in extra_pts.f.


David A. Case                     |  e-mail:
Dept. of Molecular Biology, TPC15 |  fax:          +1-858-784-8896
The Scripps Research Institute    |  phone:        +1-858-784-9768
10550 N. Torrey Pines Rd.         |  home page:                   
La Jolla CA 92037  USA            |
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Received on Fri Oct 03 2003 - 08:53:00 PDT
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