A Parallel Program for 3-Arm Bandits

We describe a new parallel program for optimizing and analyzing 3-arm Bernoulli bandit problems. Previous researchers had considered this problem computationally intractable, and we know of no previous exact optimizations of 3-arm bandit problems. Despite this, our program is able to solve problems of size 100 or more. We describe the techniques used to achieve this, and indicate various extensions of the program that enable it to solve a wide range of related problems.