From: René Hafner TUK (hamburge_at_physik.uni-kl.de)
Date: Fri Feb 12 2021 - 07:08:21 CST
Dear,
I have ran multiple setups of MW-eABF with 4 replicas.
The namd ug states at
https://www.ks.uiuc.edu/Research/namd/2.14/ug/node59.html#SECTION000126230000000000000
that one has to merge the results together using the tcl script
*eabf.tcl*
Do understand it correctly that this is only necessary when using
the Zheng/Yang estimator of the free energy
but not the CZAR estimator where this is automatically done via the
"shared on" flag or does this sharing on only reflect for the
standard abf output files?
It confuses me a bit.
Checking one of my setups with 4 replicas ran for 20.000.000 steps
with timestep of 2fs -> in total 160ns.
When calculating the number of counts in the replica0.zcount file I
get a sum of 19kk (~20kk, I did not use expandBoundaries here)
While the replica.count file results in ~80kk counts (-> already
merged results)
If I still need to merge I am missing the single czar files for the
replicas 1-3.
Are those only saved with the option `*writeCZARwindowFile **on`?*
Kind regards
René
-- Dipl.-Phys. René Hafner TU Kaiserslautern Germany
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