Berendsen pressure compressibility

Hello All,

I’m using some MD parameters that use a Berendsen barastat. The paper states they use a compressibility of 4.5E-5 bar^-1. How does this relate to the modulus keyword for fix press/berendsen? My first guess would be to take the inverse of the compressibility, additionally, wikipedia states the same (http://en.wikipedia.org/wiki/Compressibility).

Thanks for the help.

See the modulus keyword of the fix press/berendsen command
and the discussion of it on the doc page.

Steve