AWS EC2 服务建立云端Deep Learning开发环境

1. AWS EC2 的建立

• AMI 选择

  Ubuntu Server 14.04 LTS (HVM), SSD Volume Type - ami-48db9d28

• GPU Instance 选择

  目前只有g2.2xlarge是最廉价的方案，里面的硬盘空间最大为60g

• 因此需要添加 EBS 硬盘来扩充空间

  • Root - /dev/sda1 60GB
  • ebs - /dev/sdb 200GB

2. Access EC2 through ssh

• 使用ssh连接系统

  • weiwei_0903.pem 是下载到本地一个目录的key
  • 然后执行下面语句

  ssh -i "weiwei_0903.pem" ubuntu@ec2-52-53-235-35.us-west-1.compute.amazonaws.com
  

  • 让 know_host 记住这个IP地址即可

3. 加载 EBS 到刚才建立的 GPU Instance

• 查看EBS是不是存在

  ubuntu@ip-*-*-*-*:~$ lsblk
  NAME    MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
  xvda    202:0    0     8G  0 disk 
  `-xvda1 202:1    0     8G  0 part /
  xvdb    202:16   0   100G  0 disk /home/ubuntu/workspace
  

  • 其中 xvdb 是我单独添加的 EBS 硬盘。在最初，MOUNTPOINT下的/home/ubuntu/workspace应该是没有的，可以通过下面的步骤完成。

• 查询EBS是否已经有 File System

  [ec2-user ~]$ sudo file -s /dev/xvdb
  /dev/xvdb: data
  

  • 返回值是data意味着这个device目前没有文件系统，需要进一步格式化

    [ec2-user ~]$ sudo mkfs -t ext4 /dev/xvdb
    

  • 再次查看

    ec2-user ~]$ sudo file -s /dev/xvdb
    /dev/xvdb: Linux rev 1.0 ext4 filesystem data, UUID=1701d228-e1bd-4094-a14c-8c64d6819362 (needs journal recovery) (extents) (large files) (huge files)
    

• 挂载格式化好的device到当前目录

  ubuntu@ip-*-*-*-*:~$ sudo mount /dev/xvdb workspace
  ubuntu@ip-*-*-*-*:~$ lsblk
  NAME    MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
  xvda    202:0    0     8G  0 disk 
  `-xvda1 202:1    0     8G  0 part /
  xvdb    202:16   0   100G  0 disk /home/ubuntu/workspace
  

  • 此时就可以看到xvdb这个硬盘的挂载点。

• 添加权限

  $ sudo chmod go+rw workspace
  

• 关于其他Storage

  /dev/sda = /dev/xvda in the instance 8Gb "EBS persistent storage"
  /dev/sdb = /dev/xvdb in the instance 400Gb "Non persistent storage"
  

• 查看 Storage

  df -h
  

  ​

4. 安装相关软件

• 基本依赖库

  sudo apt-get update
  sudo apt-get upgrade
  sudo apt-get install -y build-essential git python-pip libfreetype6-dev libxft-dev libncurses-dev libopenblas-dev gfortran python-matplotlib libblas-dev liblapack-dev libatlas-base-dev python-dev python-pydot linux-headers-generic linux-image-extra-virtual unzip python-numpy swig python-pandas python-sklearn unzip wget pkg-config zip g++ zlib1g-dev
  sudo pip install -U pip
  

• Install Python2.7, Anconda, CUDA 7.5.178, CUDNN 7.0, Tensorflow 0.10.0

  git clone https://gist.github.com/weiweikong/374e93d9ccb88ea45341268a06897259 aws-tensorflow-python2.7-setup
  

  • 注意给bash文件权限

• Set a folder to /mnt

  # stop on error
  set -e
  ############################################
  # install into /mnt/bin
  sudo mkdir -p /mnt/bin
  sudo chown ubuntu:ubuntu /mnt/bin
  

• Install Anaconda

  wget https://repo.continuum.io/archive/Anaconda2-4.1.1-Linux-x86_64.sh
  bash Anaconda2-4.1.1-Linux-x86_64.sh -b -p /mnt/bin/anaconda2
  rm Anaconda2-4.1.1-Linux-x86_64.sh
  
  echo 'export PATH="/mnt/bin/anaconda2/bin:$PATH"' >> ~/.bashrc
  

  ​

• Install Required Packages

  # install the required packages
  sudo apt-get update && sudo apt-get -y upgrade
  sudo apt-get -y install linux-headers-$(uname -r) linux-image-extra-`uname -r`
  

• Install CUDA 7.5

  # install cuda
  wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_7.5-18_amd64.deb
  sudo dpkg -i cuda-repo-ubuntu1404_7.5-18_amd64.deb
  rm cuda-repo-ubuntu1404_7.5-18_amd64.deb
  sudo apt-get update
  sudo apt-get install -y cuda
  

• Manually download CUDNN 7.5 and upload

  scp -i your_pem_file.pem cudnn-7.5-linux-x64-v5.0-ga.tgz ubuntu@ec2-54-67-18-98.us-west-1.compute.amazonaws.com:~/.
  

• Install cuDNN 7.5.1

  # get cudnn
  tar xvzf cudnn-7.5-linux-x64-v5.1.tgz
  cd cuda
  sudo cp lib64/* /usr/local/cuda/lib64/
  sudo cp include/* /usr/local/cuda/include/
  sudo chmod a+r /usr/local/cuda/include/cudnn.h /usr/local/cuda/lib64/libcudnn*
  
  echo 'export CUDA_HOME=/usr/local/cuda
  export CUDA_ROOT=/usr/local/cuda
  export PATH=$PATH:$CUDA_ROOT/bin:$HOME/bin
  export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$CUDA_ROOT/lib64
  ' >> ~/.bashrc
  

• Install Tensorflow with only cuDNN 7.5.1 and Python 2.7

  export TF_BINARY_URL=https://storage.googleapis.com/tensorflow/linux/gpu/tensorflow-0.10.0-cp27-none-linux_x86_64.whl
  /mnt/bin/anaconda2/bin/pip install $TF_BINARY_URL
  

• Install Caffe 依赖库

  sudo apt-get install libprotobuf-dev libleveldb-dev libsnappy-dev libopencv-dev libhdf5-serial-dev protobuf-compiler
  sudo apt-get install --no-install-recommends libboost-all-dev
  sudo apt-get install libgflags-dev libgoogle-glog-dev liblmdb-dev
  

• 配置 Caffe 文件并编译

  cp Makefile.config.example Makefile.config
  # Adjust Makefile.config (for example, if using Anaconda Python, or if cuDNN is desired)
  
  mkdir build
  cd build
  cmake ..
  
  make all
  make test
  make runtest
  

• Test Caffe Install

  sh data/mnist/get_mnist.sh
  sh examples/mnist/create_mnist.sh
  sh examples/mnist/train_lenet.sh
  

  ​

• Monitor Code

  # install monitoring programs
  sudo wget https://git.io/gpustat.py -O /usr/local/bin/gpustat
  sudo chmod +x /usr/local/bin/gpustat
  sudo nvidia-smi daemon
  sudo apt-get -y install htop
  

• Ref: http://www.pyimagesearch.com/2016/07/04/how-to-install-cuda-toolkit-and-cudnn-for-deep-learning/

4.1 Trouble Shooting

• Caffe 遇到 locale::facet::_S_create_c_locale name not valid

  • add export LC_ALL="en_US.UTF-8" to bashrc
  • Ref: https://gist.github.com/wangruohui/679b05fcd1466bb0937f

• Tensorflwo 遇到 AttributeError: 'GFile' object has no attribute 'size'

  sudo chmod a+r /usr/local/cuda/include/cudnn.h /usr/local/cuda/lib64/libcudnn*
  

• libdc1394 error: Failed to initialize libdc1394

  sudo ln /dev/null /dev/raw1394
  

• Cafee 遇到 Aborted at 1458527401 (unix time) try "date -d @1458527401" if you are using GNU date

  • Check Nvidia GPUs List

    $ nvidia-smi
    Mon Sep 26 18:01:53 2016       
    +------------------------------------------------------+                       
    | NVIDIA-SMI 352.63     Driver Version: 352.63         |                       
    |-------------------------------+----------------------+----------------------+
    | GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
    | Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
    |===============================+======================+======================|
    |   0  Tesla K40c          Off  | 0000:02:00.0     Off |                    0 |
    | 31%   69C    P0    74W / 235W |    150MiB / 11519MiB |     66%      Default |
    +-------------------------------+----------------------+----------------------+
    |   1  GeForce GT 610      Off  | 0000:81:00.0     N/A |                  N/A |
    | 40%   43C    P8    N/A /  N/A |    277MiB /  1023MiB |     N/A      Default |
    +-------------------------------+----------------------+----------------------+
    |   2  Tesla K40c          Off  | 0000:82:00.0     Off |                    0 |
    | 30%   65C    P0    68W / 235W |    113MiB / 11519MiB |      0%      Default |
    +-------------------------------+----------------------+----------------------+
    

  • Set Specific GPU Visible

    CUDA_VISIBLE_DEVICES=1  Only device 1 will be seen
    CUDA_VISIBLE_DEVICES=0,1    Devices 0 and 1 will be visible
    CUDA_VISIBLE_DEVICES=”0,1”  Same as above, quotation marks are optional
    CUDA_VISIBLE_DEVICES=0,2,3  Devices 0, 2, 3 will be visible; device 1 is masked
    

  • 目前选择两个GPU工作不会报错

  • Ref:https://github.com/BVLC/caffe/issues/1993

4.2 Access to EC2 using FileZilla

• Download FileZilla and setup.
• Add .pem key file
  • Edit -> Settings -> Connection -> SFTP
  • Select the .pem file and add it to the list.
• Add EC2 connection
  • File -> Site Manager
  • Host: EC2 Public IP (Could be check under EC2 Console)
  • Protocol: SFTP
  • Login Type: Normal
  • User: ubuntu
  • Password: /
• Press Connect