[AMBER] How is temperature in Amber MD simulations calculated?

From: Arthur Roberts <audie.uga.edu>
Date: Thu, 10 Jul 2014 16:04:20 -0400

Hi, All,

How is temperature in Amber simulations calculated in the output? I
have a highly distance restrained system and the temperature is a lot
lower than the input temperature. From this, I imagine that it is
calculated using the velocities, but I am not sure. Below is an example
of the output.

  NSTEP = 9800 TIME(PS) = 9.800 TEMP(K) = 16.06 PRESS
= 0.0
  Etot = -43872.0424 EKtot = 967.0682 EPtot =
-44839.1106
  BOND = 799.4533 ANGLE = 2653.2592 DIHED = 12042.8811
  1-4 NB = 4164.1652 1-4 EEL = 53895.0746 VDWAALS =
-10988.7877
  EELEC = -92473.1031 EGB = -15270.6019 RESTRAINT =
338.5487
  EAMBER (non-restraint) = -45177.6593

The input temperature here is about 400K. Thank you in advance.

Much appreciated,
Audie

-- 
Dr. Arthur "Audie" Roberts, Ph.D.
University of Georgia
Department of Pharmaceutical and Biomedical Sciences
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Received on Thu Jul 10 2014 - 13:30:02 PDT
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