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Merge pull request #219 from deepdiffuser/4bit-multigpu

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add multi-gpu support for 4bit gptq LLaMA
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oobabooga 2023-03-10 10:52:45 -03:00 committed by GitHub
commit 113b791aa5
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1 changed files with 13 additions and 1 deletions
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modules/models.py
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@ -110,6 +110,18 @@ def load_model(model_name):
exit() exit()
model = load_quant(path_to_model, Path(f"models/{pt_model}"), 4) model = load_quant(path_to_model, Path(f"models/{pt_model}"), 4)
if shared.args.gpu_memory:
import accelerate
max_memory = {}
for i in range(len(shared.args.gpu_memory)):
max_memory[i] = f"{shared.args.gpu_memory[i]}GiB"
max_memory['cpu'] = f"{shared.args.cpu_memory or '99'}GiB"
device_map = accelerate.infer_auto_device_map(model, max_memory=max_memory, no_split_module_classes=["LLaMADecoderLayer"])
model = accelerate.dispatch_model(model, device_map=device_map)
else:
model = model.to(torch.device('cuda:0')) model = model.to(torch.device('cuda:0'))
# Custom # Custom