At https://gerrit.gromacs.org/\#/c/9382/3 I accidentally tested something with steepest descent on a system that does not interact. In such cases, the max force is zero, and minimizers should exit gracefully rather than choose a step size based on e.g. dividing by the max force. *(from redmine: issue id 2917, created on 2019-04-03 by mark.j.abraham, closed on 2019-05-03)* * Changesets: * Revision f895f84aa9268cd7c636aed1a13b980b1e8a37ff by Paul Bauer on 2019-05-02T07:54:20Z: ``` Fix FPE in do_steep Fixes error when running non-interacting system in steepest decent minimization. Fixes #2917 Change-Id: Iaff794ab6c2d41e8c4b3d89feeafae6ae2372ddf ```