Lattice QCD based on OpenCL

Understand

We present an OpenCL-based Lattice QCD application using a heatbath algorithm for the pure gauge case and Wilson fermions in the twisted mass formulation.

• The implementation is platform independent and can be used on AMD or NVIDIA GPUs, as well as on classical CPUs.
• On the AMD Radeon HD 5870 our double precision dslash implementation performs at 60 GFLOPS over a wide range of lattice sizes.
• The hybrid Monte-Carlo presented reaches a speedup of four over the reference code running on a server CPU.