The 45x speedup from fori_loop to vmap wasn’t a better algorithm. It was the same algorithm with one additional piece of information: “these Q blocks are independent.” XLA is a JIT compiler — it does dataflow analysis, operator fusion, memory planning. But it can’t infer independence from a fori_loop with carried state. vmap is semantically “map this function over a batch” — independence is built into the abstraction.
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从宏观视角来看，这种产业整合的意义远超商业本身——全产业链发展，有助于平衡农业中的利益分配，本质上是在构建惠及三农、反哺市场的良性循环。，详情可参考手游
Integrity hashes: No