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Update flags gpu_performance_tips.md
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@ -66,10 +66,6 @@ training on Nvidia GPUs](https://github.com/NVIDIA/JAX-Toolbox/blob/main/rosetta
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### Communication flags
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* **--xla_gpu_enable_async_collectives** This flag enables the collective ops
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such as `AllReduce`, `AllGather`, `ReduceScatter` and `CollectivePermute` to
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be asynchronous. Asynchronous communication can overlap cross-core
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communication with computation. The default value is False.
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* **--xla_gpu_enable_latency_hiding_scheduler** This flag enables latency hiding
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schedulers to overlap asynchronous communication with computation efficiently.
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The default value is False.
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