Implementation Techniques for SPMD Kernels on CPUs
Joachim Meyer, Aksel Alpay, Sebastian Hack, Holger Fröning, Vincent Heuveline · International Workshop on OpenCL · 2023
More and more frameworks and simulations are developed using heterogeneous programming models such as OpenCL, SYCL, CUDA, or HIP. A significant hurdle to mapping these models to CPUs in a performance-portable manner is that implementing work-group barriers for such kernels requires providing forward-progress guarantees so that all work-items can reach the barrier.