On 5/1/12 2:50 PM, niaz poorgholami wrote:
Dear Justin
the results of EM was:
Steepest Descents converged to Fmax<  1000 in 77 steps
Potential Energy  = -3.6802272e+05
Maximum force     =  8.9652832e+02 on atom 1556
Norm of force     =  1.1512711e+02
  thank you for your concern

All of that seems fine. You'll have to investigate using the tips I linked before. It is also possible that your topology is unstable. The procedure you described before seems reasonable, but thorough parameterization can be very tricky and may require refinement.

-Justin

--
========================================

Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
MILES-IGERT Trainee
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin

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