使用 SageMaker 模型并行性库 v2

准备一个包含 SMP v2 核心功能配置参数 字典的 smp_config.json 文件。确保将此 JSON 文件上传到存储训练脚本的位置，或上传到步骤 1 中指定的 torch.sagemaker.init() 模块路径。如果您已经在步骤 1 中将配置字典传递给训练脚本中的 torch.sagemaker.init() 模块，则可以跳过此步骤。

// smp_config.json
{
    "hybrid_shard_degree": Integer,
    "sm_activation_offloading": Boolean,
    "activation_loading_horizon": Integer,
    "fsdp_cache_flush_warnings": Boolean,
    "allow_empty_shards": Boolean,
    "tensor_parallel_degree": Integer,
    "expert_parallel_degree": Integer,
    "random_seed": Integer
}

将 smp_config.json 文件上传到文件系统中的一个目录。目录路径必须与您在步骤 1 中指定的路径一致。如果您已经将配置字典传递给训练脚本中的 torch.sagemaker.init() 模块，则可以跳过此步骤。

在集群的计算节点上，使用以下命令启动终端会话。

sudo su -l ubuntu

在计算节点上创建 Conda 环境。下面的代码是创建 Conda 环境并安装 SMP、SMDDP、CUDA 和其他依赖关系的示例脚本。

# Run on compute nodes
SMP_CUDA_VER=<11.8 or 12.1>

source /fsx/<path_to_miniconda>/miniconda3/bin/activate

export ENV_PATH=/fsx/<path to miniconda>/miniconda3/envs/<ENV_NAME>
conda create -p ${ENV_PATH} python=3.10

conda activate ${ENV_PATH}

# Verify aws-cli is installed: Expect something like "aws-cli/2.15.0*"
aws ‐‐version
# Install aws-cli if not already installed
# https://docs.aws.amazon.com/cli/latest/userguide/getting-started-install.html#cliv2-linux-install

# Install the SMP library
conda install pytorch="2.0.1=sm_py3.10_cuda${SMP_CUDA_VER}*" packaging ‐‐override-channels \
  -c https://sagemaker-distributed-model-parallel.s3.us-west-2.amazonaws.com/smp-2.0.0-pt-2.0.1/2023-12-11/smp-v2/ \
  -c pytorch -c numba/label/dev \
  -c nvidia -c conda-forge

# Install dependencies of the script as below
python -m pip install packaging transformers==4.31.0 accelerate ninja tensorboard h5py datasets \
    && python -m pip install expecttest hypothesis \
    && python -m pip install "flash-attn>=2.0.4" ‐‐no-build-isolation

# Install the SMDDP wheel
SMDDP_WHL="smdistributed_dataparallel-2.0.2-cp310-cp310-linux_x86_64.whl" \
  && wget -q https://smdataparallel.s3.amazonaws.com/binary/pytorch/2.0.1/cu118/2023-12-07/${SMDDP_WHL} \
  && pip install ‐‐force ${SMDDP_WHL} \
  && rm ${SMDDP_WHL}

# cuDNN installation for Transformer Engine installation for CUDA 11.8
# Please download from below link, you need to agree to terms 
# https://developer.nvidia.com/downloads/compute/cudnn/secure/8.9.5/local_installers/11.x/cudnn-linux-x86_64-8.9.5.30_cuda11-archive.tar.xz

tar xf cudnn-linux-x86_64-8.9.5.30_cuda11-archive.tar.xz \
    && rm -rf /usr/local/cuda-$SMP_CUDA_VER/include/cudnn* /usr/local/cuda-$SMP_CUDA_VER/lib/cudnn* \
    && cp ./cudnn-linux-x86_64-8.9.5.30_cuda11-archive/include/* /usr/local/cuda-$SMP_CUDA_VER/include/ \
    && cp ./cudnn-linux-x86_64-8.9.5.30_cuda11-archive/lib/* /usr/local/cuda-$SMP_CUDA_VER/lib/ \
    && rm -rf cudnn-linux-x86_64-8.9.5.30_cuda11-archive.tar.xz \
    && rm -rf cudnn-linux-x86_64-8.9.5.30_cuda11-archive/

# Please download from below link, you need to agree to terms 
# https://developer.download.nvidia.com/compute/cudnn/secure/8.9.7/local_installers/12.x/cudnn-linux-x86_64-8.9.7.29_cuda12-archive.tar.xz \
# cuDNN installation for TransformerEngine installation for cuda12.1
tar xf cudnn-linux-x86_64-8.9.7.29_cuda12-archive.tar.xz \
    && rm -rf /usr/local/cuda-$SMP_CUDA_VER/include/cudnn* /usr/local/cuda-$SMP_CUDA_VER/lib/cudnn* \
    && cp ./cudnn-linux-x86_64-8.9.7.29_cuda12-archive/include/* /usr/local/cuda-$SMP_CUDA_VER/include/ \
    && cp ./cudnn-linux-x86_64-8.9.7.29_cuda12-archive/lib/* /usr/local/cuda-$SMP_CUDA_VER/lib/ \
    && rm -rf cudnn-linux-x86_64-8.9.7.29_cuda12-archive.tar.xz \
    && rm -rf cudnn-linux-x86_64-8.9.7.29_cuda12-archive/
    
# TransformerEngine installation
export CUDA_HOME=/usr/local/cuda-$SMP_CUDA_VER
export CUDNN_PATH=/usr/local/cuda-$SMP_CUDA_VER/lib
export CUDNN_LIBRARY=/usr/local/cuda-$SMP_CUDA_VER/lib
export CUDNN_INCLUDE_DIR=/usr/local/cuda-$SMP_CUDA_VER/include
export PATH=/usr/local/cuda-$SMP_CUDA_VER/bin:$PATH
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda-$SMP_CUDA_VER/lib

python -m pip install ‐‐no-build-isolation git+https://github.com/NVIDIA/TransformerEngine.git@v1.0

运行测试训练作业。