require the use of tabulated Coulombic
and van der Waals interactions.
-``GMX_SCSIGMA_MIN``
- the minimum value for soft-core sigma. **Note** that this value is set
- using the :mdp:`sc-sigma` keyword in the :ref:`mdp` file, but this environment variable can be used
- to reproduce pre-4.5 behavior with respect to this parameter.
-
``GMX_TPIC_MASSES``
should contain multiple masses used for test particle insertion into a cavity.
The center of mass of the last atoms is used for insertion into the cavity.