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accelerate DDP integrate #23151
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accelerate DDP integrate #23151
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sgugger
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May 4, 2023
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Thanks for working on this, just one comment!
muellerzr
approved these changes
May 5, 2023
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Great job!
sgugger
approved these changes
May 5, 2023
sheonhan
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Jun 1, 2023
* mixed precision support via accelerate * fix issues * fix for the sharded ddp case * fix flax and tf failing tests * `refactor the place to create `Accelerator` object * move ddp prep to accelerate * fix 😅 * resolving comments
gojiteji
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Jun 5, 2023
* mixed precision support via accelerate * fix issues * fix for the sharded ddp case * fix flax and tf failing tests * `refactor the place to create `Accelerator` object * move ddp prep to accelerate * fix 😅 * resolving comments
novice03
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Jun 23, 2023
* mixed precision support via accelerate * fix issues * fix for the sharded ddp case * fix flax and tf failing tests * `refactor the place to create `Accelerator` object * move ddp prep to accelerate * fix 😅 * resolving comments
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What does this PR do?
accelerate launch
for DDP and MP, e.g.,Previous way of using torchrun works as usual:
Empirical nuances that I noticed:
num_processes
per step. Previously, it was only run once per step. Because of this, lr decreases rapidly when using Accelerate's integration. In the above example, I had to increase LR from 2e-5 to 5e-5 to account for this behaviour in order to maintain the performance.