GPU 'threads' are SIMD lanes and this post does not discuss those. It's about running multiple GPU 'warps', i.e. hardware threads with separate control flow an

GPU 'threads' are SIMD lanes and this post does not discuss those. It's about running multiple GPU 'warps', i.e. hardware threads with separate control flow and code execution. (Beyond that, "executing the same code" on multiple instances of a single coroutine ought to be sometimes possible on an opportunistic basis.)