Caffe on EC2 Ubuntu 14.04 Cuda 7

Using the AMI image

We have built an AMI containing Caffe, Python, Cuda 7, CuDNN, and all dependencies. Its id is ami-763a311e (disk min 8G, system is 4.6G); it is designed to work with g2.2xlarge and g2.8xlarge instances.

Precompiled Caffe binaries are placed in /home/ubuntu/caffe.

Please note that the size of the / drive is rather small (8G), there is another 60GB mounted in /mnt where you should place the files you are working with. But also keep in mind that /mntwill be wiped when you shut down the machine.

Building the AMI image yourself

Below is the script which was used to create it, based on this Ubuntu 14.04 AMI (which, as of this writing, is the default ubuntu HVM image). The script should be somewhat robust to updates to Ubuntu. The script will install Caffe wherever it is run; for the AMI, I ran it in the home directory for the ubuntu user.

If you want to use CuDNN, you'll also need a copy of cudnn-6.5-linux-x64-v2.tgz. Place it in the same directory where the script is.

If you want to use this script for installing Caffe on other ubuntu 14.04 machines, ou will probably want to get rid of the lines that set TMPDIR to /mnt.

Note also that AMI creation will involve an additional cleanup step to get rid of keys, etc; this script alone is NOT sufficient for creating a secure release.

# Add Nvidia's cuda repository
if [ ! -f "cudnn-6.5-linux-x64-v2.tgz" ] ; then
  exit 1;
fi
wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_7.0-28_amd64.deb
sudo dpkg -i cuda-repo-ubuntu1404_7.0-28_amd64.deb

sudo apt-get update
# Note that we do upgrade and not dist-upgrade so that we don't install
# new kernels; this script will install the nvidia driver in the *currently
# running* kernel.
sudo apt-get upgrade -y
sudo apt-get install -y opencl-headers build-essential protobuf-compiler \
    libprotoc-dev libboost-all-dev libleveldb-dev hdf5-tools libhdf5-serial-dev \
    libopencv-core-dev  libopencv-highgui-dev libsnappy-dev libsnappy1 \
    libatlas-base-dev cmake libstdc++6-4.8-dbg libgoogle-glog0 libgoogle-glog-dev \
    libgflags-dev liblmdb-dev git python-pip gfortran
sudo apt-get clean

# Nvidia's driver depends on the drm module, but that's not included in the default
# 'virtual' ubuntu that's on the cloud (as it usually has no graphics).  It's 
# available in the linux-image-extra-virtual package (and linux-image-generic supposedly),
# but just installing those directly will install the drm module for the NEWEST available
# kernel, not the one we're currently running.  Hence, we need to specify the version
# manually.  This command will probably need to be re-run every time you upgrade the
# kernel and reboot.
#sudo apt-get install -y linux-headers-virtual linux-source linux-image-extra-virtual
sudo apt-get install -y linux-image-extra-`uname -r` linux-headers-`uname -r` linux-image-`uname -r`

sudo apt-get install -y cuda
sudo apt-get clean

# Optionally, download your own cudnn; requires registration.  
if [ -f "cudnn-6.5-linux-x64-v2.tgz" ] ; then
  tar -xvf cudnn-6.5-linux-x64-v2.tgz
  sudo cp -P cudnn*/libcudnn* /usr/local/cuda/lib64
  sudo cp cudnn*/cudnn.h /usr/local/cuda/include
fi
# Need to put cuda on the linker path.  This may not be the best way, but it works.
sudo sh -c "sudo echo '/usr/local/cuda/lib64' > /etc/ld.so.conf.d/cuda_hack.conf"
sudo ldconfig /usr/local/cuda/lib64


# Get caffe, and install python requirements
git clone https://github.com/BVLC/caffe.git
cd caffe
cd python
for req in $(cat requirements.txt); do sudo pip install $req; done

# Prepare Makefile.config so that it can build on aws
cd ../
cp Makefile.config.example Makefile.config
if [ -f "../cudnn-6.5-linux-x64-v2.tgz" ] ; then
  sed -i '/^# USE_CUDNN := 1/s/^# //' Makefile.config
fi
sed -i '/^# WITH_PYTHON_LAYER := 1/s/^# //' Makefile.config
sed -i '/^PYTHON_INCLUDE/a    /usr/local/lib/python2.7/dist-packages/numpy/core/include/ \\' Makefile.config

# Caffe takes quite a bit of disk space to build, and we don't have very much on /.
# Hence, we set the TMPDIR for to /mnt/build_tmp, under the assumption that our AMI has
# already mounted an ephemeral disk on /mnt.  Note that /mnt gets deleted on reboot, so we
# need an init script.
echo 'export TMPDIR=/mnt/build_tmp' >> Makefile.config
sudo bash -c 'cat <<EOF > /etc/init.d/create_build_dir
#!/bin/bash
if [ -d /mnt ] && [ ! -e /mnt/build_tmp ] ; then
  mkdir /mnt/build_tmp
  chown ubuntu /mnt/build_tmp
fi
EOF'
sudo chmod 744 /etc/init.d/create_build_dir
sudo /etc/init.d/create_build_dir
sudo update-rc.d create_build_dir defaults

# And finally build!
make -j 8 all py

make -j 8 test
make runtest

# Do some cleanup
cd ../
mkdir installation_files
mv cudnn* installation_files/
mv cuda-repo* installation_files/