Re: Thermodynamic Integration document

From: Brian Radak (
Date: Sat Aug 31 2019 - 14:32:38 CDT

Unfortunately (?) TI has somewhat fallen out of disuse in the mid recent
NAMD releases in favor of FEP/BAR. There are still descriptions of the
relevant keywords in the user guide and a brief description of the method.

One subtle aspect that probably deserves better explanation is that the
decomposed derivatives can be tricky to integrate if you are using a
staggered lambda schedule (such as the default). Other than that the
details of integration have always been left to the user.

I might recommend attempting some of the FEP tutorials using TI instead,
since the results ought to be the same.


On Sat, Aug 31, 2019, 5:31 AM Aashish Bhatt <>

> Dear Sir/ ma'am
> I want to perform thermodynamic integration to calculate free energy in
> oxidation or reduction.
> Is there any tutorial or documentation available for Thermodynamic
> integration?
> please let me know.If such kind of calculation can be performed.
> Best Regards
> Aashish
> India

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