Building Running with Docker

wav2letter++ and its dependencies can also be built with the provided Dockerfile. Both CUDA and CPU backends are supported with Docker

Using pre-built Docker images

To use wav2letter++ with Docker:

Install Docker and, if using the CUDA backend, nvidia-docker

Run the docker image with CUDA/CPU backend in a new container:

# with CUDA backend (for CUDA 9.2)
sudo docker run --runtime=nvidia --rm -itd --ipc=host --name w2l wav2letter/wav2letter:cuda-latest
# with CUDA backend (for CUDA 10)
sudo docker run --runtime=nvidia --rm -itd --ipc=host --name w2l wav2letter/wav2letter:cuda-10-latest 
# or with CPU backend
sudo docker run --rm -itd --ipc=host --name w2l wav2letter/wav2letter:cpu-latest
# go into bash in the container
sudo docker exec -it w2l bash

One can also mount any necessary directories into a container, for example:

sudo docker run --runtime=nvidia --rm -itd --ipc=host \
     --volume original/path/on/your/machine:mounted/path/in/the/container 
     --name w2l wav2letter/wav2letter:cuda-latest

To run tests inside a container
```
cd /root/wav2letter/build && make test
```

Update flashlight and wav2letter inside a container to have current master

for CUDA backend

cd /root/flashilight && git pull
cd build && cmake .. -DCMAKE_BUILD_TYPE=Release -DFLASHLIGHT_BACKEND=CUDA && \
make -j8 && make install 
export MKLROOT=/opt/intel/mkl && export KENLM_ROOT_DIR=/root/kenlm && \
rm -rf /root/wav2letter && cd /root && \
git clone --recursive https://github.com/facebookresearch/wav2letter.git && \
cd /root/wav2lettr && mkdir -p build && \
cd build && cmake .. -DCMAKE_BUILD_TYPE=Release -DW2L_LIBRARIES_USE_CUDA=ON -DW2L_BUILD_INFERENCE=ON && \
make -j8 && \

for CPU backend

cd /root/flashilight && git pull
cmake .. -DCMAKE_BUILD_TYPE=Release -DFLASHLIGHT_BACKEND=CPU && \
make -j8 && make install
export KENLM_ROOT_DIR=/root/kenlm && \
rm -rf /root/wav2letter && cd /root && \
git clone --recursive https://github.com/facebookresearch/wav2letter.git && \
cd /root/wav2lettr && mkdir -p build && \
cd build && cmake .. -DCMAKE_BUILD_TYPE=Release -DW2L_LIBRARIES_USE_CUDA=OFF -DW2L_BUILD_INFERENCE=ON && \
make -j8

Build images by yourself

To build Docker image from the source (using --no-cache will provide the latest version of flashlight inside the image if you have built the image previously for earlier versions of wav2letter) run the following commands:

git clone --recursive https://github.com/facebookresearch/wav2letter.git
cd wav2letter
# for CUDA backend
sudo docker build --no-cache -f ./Dockerfile-CUDA -t wav2letter .
# for CPU backend
sudo docker build --no-cache -f ./Dockerfile-CPU -t wav2letter .