class RandomModulo : public feasst::Random

This is a very simple implementation of a random number generator that is of poor quality. See the discussion in Allen and Tildesley “Computer Simulation of Liquids” Appendix G. This was implemented so that the same number sequence can be obtained on different compilers and operating systems, whereas RandomMT19937 has known differences between GCC and Clang. It is recommended to use the more high-quality RandomMT19937 for production simulations.