anchor.diff:      git submodule update --init && \
       TORCH_CUDA_ARCH_LIST="3.5 3.7 5.2 6.0 6.1 7.0+PTX" TORCH_NVCC_FLAGS="-Xfatbin -compress-all" \
       CMAKE_PREFIX_PATH="$(dirname $(which conda))/../" \
  -    pip install -v .
  +    pip install -v . && \
  +    rm -rf /pytorch
   
   
   RUN git clone https://github.com/pytorch/vision.git && cd vision && pip install -v .
  -
  -RUN conda install -y -c conda-forge python-lmdb \
  -        opencv 
  -
  -RUN conda install -y -c conda-forge numpy
   
   RUN pip install -U git+https://github.com/ppwwyyxx/tensorpack.git
   
  
positive.code: FROM nvidia/cuda:9.0-cudnn7-devel-ubuntu16.04
  # TODO: reduce size and complexity of image.
  
  RUN apt-get update && apt-get install -y \
      gcc \
      make \
      libc-dev \
      musl-dev \
      openssh-server
  
  RUN apt-get update && apt-get install -y \
      g++
  
  RUN apt-get update && apt-get install -y \
      git \
      curl \
      sudo
  
negative.code: # RUN conda install -y -c conda-forge tqdm 
  # # RUN conda install -y -c pchrapka zmq
  # # RUN conda install -c omnia termcolor
  
  # -------------------- patch --------------------
  # libGL.so.1 might be lost when nvidia driver is installed
  