The CONMIN library [Van73] is a public domain library of nonlinear
programming optimizers, specifically the Fletcher-Reeves conjugate
gradient ( method-conmin_frcg) method for unconstrained
optimization, and the method of feasible directions (
method-conmin_mfd) for constrained optimization. As CONMIN was a
predecessor to the DOT commercial library, the algorithm controls are
very similar.
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.