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override DeepSpeed grad_acc_steps from accelerator obj #698

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merged 2 commits into from
Sep 14, 2022
Merged

override DeepSpeed grad_acc_steps from accelerator obj #698

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f9729f2
override DeepSpeed `grad_acc_steps` from `accelerator` obj
pacman100 Sep 14, 2022
8d77f49
resolving comment
pacman100 Sep 14, 2022
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6 changes: 6 additions & 0 deletions src/accelerate/accelerator.py
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Original file line number Diff line number Diff line change
Expand Up @@ -747,6 +747,12 @@ def _prepare_deepspeed(self, *args):
batch_size_per_device = deepspeed_plugin.deepspeed_config["train_micro_batch_size_per_gpu"]
result = [obj for obj in args]

if self.gradient_accumulation_steps != deepspeed_plugin.deepspeed_config["gradient_accumulation_steps"]:
logger.info(
f"Updating DeepSpeed's gradient accumulation steps to {self.gradient_accumulation_steps} from "
f"{deepspeed_plugin.deepspeed_config['gradient_accumulation_steps']}."
)
deepspeed_plugin.deepspeed_config["gradient_accumulation_steps"] = self.gradient_accumulation_steps
config_kwargs = {
"train_micro_batch_size_per_gpu": batch_size_per_device,
"train_batch_size": batch_size_per_device
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