AW: Replica Exchange: Equilibrating at each temperature

From: Norman Geist (norman.geist_at_uni-greifswald.de)
Date: Tue May 31 2016 - 08:41:23 CDT

Btw. do you want to implement the TIGER2 REMD algo? I can supply the code for this too.

 

Norman Geist

 

Von: owner-namd-l_at_ks.uiuc.edu [mailto:owner-namd-l_at_ks.uiuc.edu] Im Auftrag von Norman Geist
Gesendet: Dienstag, 31. Mai 2016 11:25
An: namd-l_at_ks.uiuc.edu; 'Horia Jalily Hasani' <jalilyha_at_ualberta.ca>
Betreff: AW: namd-l: Replica Exchange: Equilibrating at each temperature

 

 

Doing an equilibration doesn’t make sense in a REMD at all, since it’s its aim to be independent of the starting structure. What you can do to set up REMD simulations easier without need to prepare the systems, is to add a minimization to each replica. This would need to be implemented in replica.namd. But you should rotate the DCDfile option before minimization, and afterwards back to the production name in order to not have the minimization frames in the normal DCDs since this will mess up sortreplicas and the history files.

 

I’ve done this already and can supply you the code changes necessary ;)

 

Norman Geist

 

Von: owner-namd-l_at_ks.uiuc.edu <mailto:owner-namd-l_at_ks.uiuc.edu> [mailto:owner-namd-l_at_ks.uiuc.edu] Im Auftrag von Horia Jalily Hasani
Gesendet: Montag, 30. Mai 2016 18:28
An: namd-l_at_ks.uiuc.edu <mailto:namd-l_at_ks.uiuc.edu>
Betreff: namd-l: Replica Exchange: Equilibrating at each temperature

 

Hi,

 

I wish to implement a step during REMD, to equilibrate each replica at its own temperature before starting the swaps.

 

Considering I have the following 3 files, I am not sure which one should be modified and how should it be done:

replica.conf

_base.namd

replica.namd

 

Your response is much appreciated.

 

Regards,

Horia

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