MAIL about namd velocity error

From: Vidhya Sankar (vidhyasankar7928_at_yahoo.com)
Date: Tue Jul 24 2018 - 09:08:08 CDT

Dear namd users
When i run the simulation with fixedatoms on option i got hte following error
 

ERROR: Atom 10805 velocity is nan nan nan (limit is 12500, atom 353 of 1943 on patch 6 pe 19)
ERROR: Atom 10806 velocity is nan nan nan (limit is 12500, atom 354 of 1943 on patch 6 pe 19)
ERROR: Atom 10807 velocity is nan nan nan (limit is 12500, atom 355 of 1943 on patch 6 pe 19)
ERROR: Atoms moving too fast; simulation has become unstable (3 atoms on patch 6 pe 19).

How to solve the error

Is it better to resart simulation from check point ?

With regards
S.Vidhyasankar

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