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Re: [ESPResSo-users] Problem with output

From: Florian Weik
Subject: Re: [ESPResSo-users] Problem with output
Date: Sat, 30 Apr 2016 17:52:49 +0200

if you do not set a seed, Espresso and the random numbers provided by Espresso in TCL (by the t_random command) behave deterministically, which means that if you do not set a different seed, the script will produce the same output. I am not sure how rand, which is provided by TCL behaves.

If you are not sure about PRNGs and their meaning for MD simulations you should look that up in a standard textbook like Frenkel and Smit.

Hope that helps,

On Apr 30, 2016 3:34 PM, "Nairhita Samanta" <address@hidden> wrote:
Hi all!

       I have this strange problem with my code. Whenever I am running a code, it is giving me the exact same output, i.e. the position and velocity of each particle at each time step coming to be identical from my previous run. I have changed the name of the input and output files, but every time I am seeing the same problem. If you have any solution regarding this problem, please suggest.


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