From: Kamp, Marc vander (Marc.vanderKamp_at_wur.nl)
Date: Wed Jun 16 2004 - 11:34:51 CDT
These 'keywords' orignally are substitution parameters available within CHARMM.
In the psf file you see the so-called psf-counts.
'NGRP' is number of groups (not important for your NAMD simulation I think)
'NNB' is number of explicit nonbond exclusions
From: owner-namd-l_at_ks.uiuc.edu on behalf of mashaojie163
Sent: Wed 16-6-2004 16:33
Subject: namd-l: about psf file
Do you know what is meaning of keywords "!NNB" and "!NGRP" in psf file ?
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