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fix zero2 high ram usage

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Former-commit-id: 01797126eb173250250e31f8e76b69ae0047745d
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hiyouga
2024-05-19 21:53:54 +08:00
parent fd02c9f973
commit 516d83c946
2 changed files with 5 additions and 5 deletions
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src/llamafactory/model/patcher.py
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@@ -5,7 +5,7 @@ from typing import TYPE_CHECKING, Any, Dict
import torch
from peft import PeftModel
from transformers import PreTrainedModel, PreTrainedTokenizerBase, is_torch_npu_available
from transformers.integrations import deepspeed_config, is_deepspeed_zero3_enabled
from transformers.integrations import is_deepspeed_zero3_enabled
from transformers.modeling_utils import is_fsdp_enabled
from ..extras.logging import get_logger
@@ -72,7 +72,7 @@ def patch_config(
# deepspeed zero3 is not compatible with low_cpu_mem_usage
init_kwargs["low_cpu_mem_usage"] = model_args.low_cpu_mem_usage and (not is_deepspeed_zero3_enabled())
if deepspeed_config() is None and not is_fsdp_enabled(): # set dtype and device map if not use deepspeed or fsdp
if not is_deepspeed_zero3_enabled() and not is_fsdp_enabled(): # cast dtype and device if not use zero3 or fsdp
init_kwargs["torch_dtype"] = model_args.compute_dtype
if init_kwargs["low_cpu_mem_usage"]: # device map requires low_cpu_mem_usage=True