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utils.py
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utils.py
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import os
import bitsandbytes as bnb
# SOURCE https://github.com/artidoro/qlora/blob/main/qlora.py
def find_all_linear_names(model):
cls = bnb.nn.Linear4bit # if args.bits == 4 else (bnb.nn.Linear8bitLt if args.bits == 8 else torch.nn.Linear)
lora_module_names = set()
for name, module in model.named_modules():
if isinstance(module, cls):
names = name.split(".")
lora_module_names.add(names[0] if len(names) == 1 else names[-1])
if "lm_head" in lora_module_names: # needed for 16-bit
lora_module_names.remove("lm_head")
return list(lora_module_names)
def get_world_size():
return int(os.environ.get("WORLD_SIZE", 1))
def get_local_rank():
return int(os.environ.get("LOCAL_RANK", 0))