Add a constant cost function to the autodiff benchmarks The constant cost function is run with a variable number of parameters to test at which point, different compilers fail to optimize the autodiff code. Clang achieves expected performance which fails at >50 parameters. G++ fails already at 20 parameters Change-Id: I75d8c683ef0011d813ec6d966d7ad58f86530f44
Ceres Solver is an open source C++ library for modeling and solving large, complicated optimization problems. It is a feature rich, mature and performant library which has been used in production at Google since 2010. Ceres Solver can solve two kinds of problems.
Please see ceres-solver.org for more information.