A large-scale cross-architecture evaluation of thread-coarsening
Alberto Magni, Christophe Dubach, Michael O’Boyle · 2013
OpenCL has become the de-facto data parallel programming model for parallel devices in today's high-performance supercomputers. OpenCL was designed with the goal of guaranteeing program portability across hardware from different vendors. However, achieving good performance is hard, requiring manual tuning of the program and expert knowledge of each target device.