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enable full bf16 trainint in train_network

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Kohya S
2023-07-19 08:41:42 +09:00
parent 7875ca8fb5
commit 225e871819
3 changed files with 11 additions and 3 deletions
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8
train_network.py
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@@ -350,13 +350,19 @@ class NetworkTrainer:
# lr schedulerを用意する
lr_scheduler = train_util.get_scheduler_fix(args, optimizer, accelerator.num_processes)
# 実験的機能：勾配も含めたfp16学習を行う　モデル全体をfp16にする
# 実験的機能：勾配も含めたfp16/bf16学習を行う　モデル全体をfp16/bf16にする
if args.full_fp16:
assert (
args.mixed_precision == "fp16"
), "full_fp16 requires mixed precision='fp16' / full_fp16を使う場合はmixed_precision='fp16'を指定してください。"
accelerator.print("enable full fp16 training.")
network.to(weight_dtype)
elif args.full_bf16:
assert (
args.mixed_precision == "bf16"
), "full_bf16 requires mixed precision='bf16' / full_bf16を使う場合はmixed_precision='bf16'を指定してください。"
accelerator.print("enable full bf16 training.")
network.to(weight_dtype)
unet.requires_grad_(False)
unet.to(dtype=weight_dtype)