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Comment by billconan | Hacker News Reader

I'm curious how a gpu language's syntax design can be different from CUDA kernel?

Because I think there is no way to avoid concepts like thread_id.

I'm curious how GPU programming can be made (a lot) simpler than CUDA.

Most GPU work boils down to a few patterns — map, reduce, scan. Each one has a known way to assign threads.

So instead of writing a kernel with thread_id:

  let c = gpu_add(a, b)
  let total = gpu_sum(c)

The thread indexing is still there — just handled by the runtime, like how Python hides pointer math.