Rsolnp-package The Rsolnp package benchmark The Rsolnp Benchmark Problems Suite. benchmarkids The Rsolnp Benchmark Problems Suite problem id's. gosolnp Random Initialization and Multiple Restarts of the solnp solver. solnp Nonlinear optimization using augmented Lagrange method. startpars Generates and returns a set of starting parameters by sampling the parameter space based on the evaluation of the function and constraints.