hiop (spack): HiOp is an optimization solver for solving certain mathematical optimization problems expressed as nonlinear programming problems. HiOp is a lightweight HPC solver that leverages application"s existing data parallelism to parallelize the optimization iterations by using specialized linear algebra kernels. 
Keywords: acopf|bfgs|constrained-optimization|cuda|gpu-support|hpc|interior-point-method|math-physics|mpi|nonlinear-optimization|nonlinear-optimization-algorithms|nonlinear-programming|nonlinear-programming-algorithms|optimization|parallel-programming|quasi-newton|radiuss|solver