tilearn-llm 0.5.5

TILEARN for LLM

Tilearn.llm使用说明

1. CUDA Kernel（以LLAMA为例）

支持显卡：Ampere, Ada, or Hopper GPUs (e.g., A100, A800, H100, H800)

新版本

新版本Dependencies: pytorch >= 2.0.0

该版本完全兼容huggingface接口，不需要额外的转模型操作

LLAMA1/LLAMA2 A800 16GPU seq=1024相比deepspeed zero2训练加速约20%

cuda kernel使用方法-启动脚本修改如下

### TIACC CUDA Kernel
### Open: TIACC_TRAINING_CUDA_KERNEL=1
### Close: TIACC_TRAINING_CUDA_KERNEL=0
export TIACC_TRAINING_CUDA_KERNEL=1

cuda kernel使用方法-代码修改如下

### TIACC
TIACC_TRAINING_CUDA_KERNEL = int(os.getenv('TIACC_TRAINING_CUDA_KERNEL', '0'))
if TIACC_TRAINING_CUDA_KERNEL == 1:
    from tilearn.llm.transformers import LlamaForCausalLM

### 模型接口与标准huggingface一致
model = LlamaForCausalLM.from_pretrained(...)

### TIACC
TIACC_TRAINING_CUDA_KERNEL = int(os.getenv('TIACC_TRAINING_CUDA_KERNEL', '0'))
if TIACC_TRAINING_CUDA_KERNEL == 1:
    from tilearn.llm.transformers import AutoModelForCausalLM

### 模型接口与标准huggingface一致
model = AutoModelForCausalLM.from_pretrained(...)

旧版本

旧版本Dependencies: flash-attention 请安装https://github.com/Dao-AILab/flash-attention, 建议源码安装

### compile from source
git clone --recursive https://github.com/Dao-AILab/flash-attention
cd flash-attention && python setup.py install

### install layer_norm, fused_dense and rotary kernel
cd flash-attention/csrc/layer_norm && pip3 install .
cd flash-attention/csrc/fused_dense_lib && pip install .
cd flash-attention/csrc/rotary && pip install .

该版本不兼容huggingface接口，可直接读取huggingface模型和原始cuda kernel模型（训练保存的模型结构）

由于训练保存的模型为原始cuda kernel模型，非huggingface结构，若需要huggingface模型则手动执行脚本转换

LLAMA1/LLAMA2 A800 16GPU seq=1024相比deepspeed zero2训练加速约30%

cuda kernel使用方法-启动脚本修改如下

### TIACC CUDA Kernel
### Open: TIACC_TRAINING_CUDA_KERNEL_V0=1
### Close: TIACC_TRAINING_CUDA_KERNEL_V0=0
export TIACC_TRAINING_CUDA_KERNEL_V0=1
export TIACC_TRAINING_MODEL_FORMAT=llama-hf

# 若读取huggingface模型结构，则设置llama-hf
export TIACC_TRAINING_MODEL_FORMAT=llama-hf
# 若原始cuda kernel模型，则设置llama-origin
export TIACC_TRAINING_MODEL_FORMAT=llama-origin

cuda kernel使用方法-代码修改如下

### TIACC
TIACC_TRAINING_CUDA_KERNEL_V0 = int(os.getenv('TIACC_TRAINING_CUDA_KERNEL_V0', '0'))
if TIACC_TRAINING_CUDA_KERNEL_V0 == 1:
    from tilearn import llm

### LLAMA模型初始化
TIACC_TRAINING_MODEL_FORMAT = os.getenv('TIACC_TRAINING_MODEL_FORMAT', 'llama-origin')
model = llm.models.llama(model_args.model_name_or_path, model_format=TIACC_TRAINING_MODEL_FORMAT)

2. Static Zero

适用场景：在deepspeed zero1、zero2、zero3、offload、int8等不同优化状态间切换

启动脚本修改如下

### TIACC STATIC ZERO
### Open: TIACC_TRAINING_CUDA_KERNEL='O2' 
### support 'O2' / 'O2.5' / 'O3' / 'O3.5' / 'O3_Q8'(doing)
### Close: TIACC_TRAINING_CUDA_KERNEL='None'
export TIACC_TRAINING_STATIC_ZERO='None' #'O2'

代码修改如下

from transformers import HfArgumentParser

TIACC_TRAINING_STATIC_ZERO = os.getenv('TIACC_TRAINING_STATIC_ZERO', 'None')
if TIACC_TRAINING_STATIC_ZERO != 'None':
    from tilearn.llm.transformers import TrainingArguments
	
### 接口与标准huggingface一致
parser = HfArgumentParser((ModelArguments, DataTrainingArguments, TrainingArguments))

3. Dynamic Zero

适用场景：适用于zero3 + offload场景，大幅优化显存从而提升batchsize

启动脚本修改如下

### TIACC DYNAMIC ZERO
### Open: TIACC_TRAINING_DYNAMIC_ZERO=1 and set TIACC_ZERO_STAGE/TIACC_ZERO_STAGE/TIACC_PLACEMENT/TIACC_SHARD_INIT/TIACC_CPU_INIT
### Close: TIACC_TRAINING_DYNAMIC_ZERO=0
export TIACC_TRAINING_DYNAMIC_ZERO=0
export TIACC_ZERO_STAGE=3 #work when TIACC_TRAINING_DYNAMIC_ZERO=1
export TIACC_PLACEMENT='cpu' #'cuda' #work when TIACC_TRAINING_DYNAMIC_ZERO=1
export TIACC_SHARD_INIT=0 #work when TIACC_TRAINING_DYNAMIC_ZERO=1
export TIACC_CPU_INIT=1 #work when TIACC_TRAINING_DYNAMIC_ZERO=1

if [ ${TIACC_TRAINING_DYNAMIC_ZERO} = 0 ]; then
  #USE_DS="--deepspeed=./ds_config_zero3.json"
  USE_DS="--deepspeed=${deepspeed_config_file}"
else
  USE_DS=""
fi

torchrun --nnodes 1 --nproc_per_node 8 run_clm.py \
    ${USE_DS} \
	...

代码修改如下

TIACC_TRAINING_DYNAMIC_ZERO = int(os.getenv('TIACC_TRAINING_DYNAMIC_ZERO', '0'))
from contextlib import nullcontext
if TIACC_TRAINING_DYNAMIC_ZERO == 1:
    from tilearn.llm.trainer import TrainerTiacc as Trainer
    from tilearn.llm import init as llm_init
    from tilearn.llm import get_config as llm_get_config
	

	
### init in main func
def main():
    if TIACC_TRAINING_DYNAMIC_ZERO == 1:
        llm_config = llm_get_config()
        llm_init_context = llm_init(init_in_cpu=llm_config.cpu_init,
                                    shard_init=llm_config.shard_init,
                                    model_dtype=torch.half)
									
### add init_context when model init
    init_context = llm_init_context if TIACC_TRAINING_DYNAMIC_ZERO == 1 else nullcontext
    with init_context():
		### 接口与标准huggingface一致
        model = LlamaForCausalLM.from_pretrained(
            model_args.model_name_or_path,
            config=config,
            low_cpu_mem_usage=False #True,
			...
        )
		
		
### use trainer
    ### 接口与标准huggingface一致
    trainer = Trainer(
        model=model,
        ...
    )