Dockerfile.hvd-base

# Multi-stage build
# Dockerfile.hvd-base

ARG PTH_VERSION

FROM pytorch/pytorch:${PTH_VERSION}-devel as builder

ARG HVD_VERSION

# Build Horovod
RUN apt-get update && apt-get install -y git && \
        git clone --recursive --depth 1 --branch ${HVD_VERSION} https://github.com/horovod/horovod.git /horovod && \
        conda install -y cmake nccl -c conda-forge && \
        cd /horovod && \
        HOROVOD_GPU_OPERATIONS=NCCL HOROVOD_NCCL_LINK=SHARED HOROVOD_WITHOUT_MPI=1 HOROVOD_WITH_PYTORCH=1 pip wheel --no-cache-dir . && \
        rm -rf /var/lib/apt/lists/*

# Build runtime image
FROM pytorch/pytorch:${PTH_VERSION}-runtime

# Install tzdata / git
RUN apt-get update && \
    ln -fs /usr/share/zoneinfo/Europe/Paris /etc/localtime && \
    apt-get -y install --no-install-recommends tzdata git && \
    dpkg-reconfigure --frontend noninteractive tzdata && \
    apt-get autoremove -y && \
    apt-get clean -y && \
    rm -rf /var/lib/apt/lists/*

# Ignite main dependencies
RUN pip install --upgrade --no-cache-dir pytorch-ignite \
                                         tensorboard \
                                         tqdm \
                                         fire

# Replace pillow with pillow-simd
RUN apt-get update && apt-get -y install --no-install-recommends g++ && \
    pip uninstall -y pillow && \
    CC="cc -mavx2" pip install --upgrade --no-cache-dir --force-reinstall pillow-simd && \
    apt-get remove -y g++ && \
    apt-get autoremove -y && \
    rm -rf /var/lib/apt/lists/*

# Checkout Ignite examples only
RUN mkdir -p pytorch-ignite-examples && \
    cd pytorch-ignite-examples && \
    git init && \
    git config core.sparsecheckout true && \
    echo examples >> .git/info/sparse-checkout && \
    git remote add -f origin https://github.com/pytorch/ignite.git && \
    git pull origin master && \
    # rm very large .git folder
    rm -rf .git

# Horovod
RUN conda install -y nccl -c conda-forge

ENV LD_LIBRARY_PATH=/opt/conda/lib:$LD_LIBRARY_PATH

COPY --from=builder /horovod/horovod-*.whl /horovod/

RUN cd /horovod && \
    pip install --no-cache-dir horovod-*.whl && \
    rm -fr /horovod