Using RenderScript and RCUDA for Compute Intensive tasks on Mobile Devices: a Case Study
Roelof Kemp, Nicholas Palmer, Thilo Kielmann, Henri E. Bal, Bastiaan Aarts, Anwar M. Ghuloum · VU Research Portal · 2013
Abstract: The processing power of mobile devices is continuously increasing. In this paper we perform a case study in which we assess three different programming models that can be used to leverage this processing power for compute intensive tasks. We use an imaging algorithm and compare a reference implementation of this algorithm based on OpenCV with a multi threaded RenderScript implementation and an implementa-tion based on computation offloading with Remote CUDA. Experiments show that on a modern Tegra 3 quad core device a multi threaded implementation can achieve a 2.2 speed up factor at the same energy cost, whereas computation offloading does neither lead to speed ups nor energy savings. 1