[gmx-users] semiisotropic pressure coupling

[Erik Lindahl]

David L. Bostick wrote:

>If I choose semiisotropic pressure coupling with x/y compressibility set to
>4.5e-5 and z set to zero, like this,
>
>compressibility         = 4.5e-5 0.0
>
>will this give me a box that scales in the x and y dimensions, but not in
>z, similar to the same sort of thing you can do with the surface-tension
>coupling option?
>
Yes :-)

I don't remeber if we check and warn for the z compressibility being 
zero; but in that case you can just use 1e-30 instead.

Cheers,

Erik