How is the maximum velocity limit set?

From: Yinglong Miao (
Date: Fri Nov 30 2007 - 10:22:40 CST


For the following error messages I got in my simulations, could anybody
tell me how is the maximum velocity limit set and what are the units
for these numbers in NAMD?

ERROR: Atom 20 velocity is 118110 769449 -1.57628e+06 (limit is 10000)
ERROR: Atom 1362 velocity is -3132.54 -55302.4 100033 (limit is 10000)
ERROR: Atoms moving too fast; simulation has become unstable.
ERROR: Exiting prematurely.


Yinglong Miao
Ph.D. Candidate
Center for Cell and Virus Theory
Chemistry Department, Indiana University
800 E Kirkwood Ave Room C203A, Bloomington, IN 47405

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