SAS Optimization 8.2, a SAS Viya product, was released on December 12, 2017. SAS Optimization provides many of the same optimization capabilities as SAS/OR, but SAS Optimization also incorporates many distributed optimization features. SAS Optimization 8.2 adds several new capabilities:
- The MILP, network, and NLP solvers and the decomposition algorithm (for LP and MILP) improve their performance.
- The LP and MILP solvers improve their numerical stability.
- The MILP solver adds a distributed branch-and-cut algorithm and the ability to report multiple solutions.
- PROC OPTNETWORK and the network solver (accessible from PROC OPTMODEL) add a path enumeration algorithm to find paths between specified nodes. The network optimization action set adds the corresponding path action.
- The connected components algorithm in the network solver adds support for the thin internal graph format.
- The LSO (local search optimization) solver is added and is called by PROC OPTMODEL.
- PROC CLP (constraint logic programming) is added and runs on CAS. You can choose to run PROC CLP on a single machine or to distribute its execution across multiple nodes.
- The optimization action set adds two actions, loadMps and convertMps, that help convert an .mps file on the client to a CAS table that can be accepted as input by PROC OPTLP and PROC OPTMILP in SAS Optimization
For more information, see the SAS Optimization 8.2 documentation.
