ith Exascale systems on the horizon at the same time that conventional
von-Neumann architectures are suffering from rising power densities, we
are facing an era with power, energy-efficiency, and cooling as
first-class constraints for scalable HPC. FPGAs can tailor the hardware
to the application, avoiding overheads of general-purpose
architectures. Leading FPGA manufacturers have recently made a
concerted effort to provide a range of higher-level, easier to use,
high level programming models for FPGAs, including the OpenCL
framework, which is already widely used by the HPC community for
heterogeneous computing. OpenCL is particularly appealing because it
offers the potential for portability to GPUs and Xeon Phi.