Because Mathematica is used as a universal interface to the GPU programming frameworks CUDA and OpenCL, UnRisk users are not exposed to the low-level complexities of GPU programming.
The talk stands on the stable ground of comprehensive experiments. I have compiled the results in my other blog - Taming The Machine Infernal .
In Champaign we will present the latest results and emphasize on the architectural benefits gained by the usage of Mathematica. It is really amazing how our decision to use Mathematica as platform for UnRisk pays back. Even the most complex components can be tied together so easily. Coarse- and fine-grain parallelization, transaction processing, dynamic visualization, task and work-flow automation, ...We really look forward to joining Wolfram and other developers and users at the conference.