On 6/14/17 5:23 PM, Mohsen Ramezanpour wrote:
I have done equilibration for almost 45 ns or even 60 ns for one test system. I expected with this energy and this equilibration time, it works fine. But it fails. I will construct the systems as you suggested to see what I get.
With such a long equilibration, there's no reason it should fail with dt = 2 fs if the clashes have been eliminated, because I would expect they should be gone after a few ps. I'd suspect something else in the topology or .mdp file but you'll have to do a more thorough diagnosis (e.g. http://www.gromacs.org/Documentation/Terminology/Blowing_Up#Diagnosing_an_Unstable_System)
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