The no_gradients specification means that gradient information is
not needed in the study. Therefore, it will neither be retrieved from
the simulation nor computed with finite differences. The
no_gradients keyword is a complete specification for this case.
Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC., a wholly owned subsidiary of Honeywell International, Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA-0003525.