Using the parallel barrier optimizer

Describes the parallel barrier optimizer.

The CPLEX parallel barrier optimizer achieves significant speedups over its serial counterpart on a wide variety of classes of problems. (The serial barrier optimizer is introduced in Solving LPs: barrier optimizer, and explored further in Solving problems with a quadratic objective (QP) and in Solving problems with quadratic constraints (QCP).) Consequently, the parallel barrier optimizer will be the best continuous choice on a parallel computer more frequently than on a single-processor. For that reason, you should be careful not to apply performance data or experience based on serial optimizers when you are choosing which optimizer to use on a parallel platform.