if set to -1, :ref:`gmx mdrun` will
not exit if it produces too many LINCS warnings.
-``GMX_NB_GENERIC``
- use the generic C kernel. Should be set if using
- the group-based cutoff scheme and also sets ``GMX_NO_SOLV_OPT`` to be true,
- thus disabling solvent optimizations as well.
-
``GMX_NB_MIN_CI``
neighbor list balancing parameter used when running on GPU. Sets the
target minimum number pair-lists in order to improve multi-processor load-balance for better
``GMX_NOPREDICT``
shell positions are not predicted.
-``GMX_NO_SOLV_OPT``
- turns off solvent optimizations; automatic if ``GMX_NB_GENERIC``
- is enabled.
-
``GMX_NO_UPDATEGROUPS``
turns off update groups. May allow for a decomposition of more
domains for small systems at the cost of communication during update.