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AWS Deep Learning Containers

AWS Deep Learning Containers (DLCs) are a set of Docker images for training and serving models in TensorFlow, TensorFlow 2, PyTorch, and MXNet. Deep Learning Containers provide optimized environments with TensorFlow and MXNet, Nvidia CUDA (for GPU instances), and Intel MKL (for CPU instances) libraries and are available in the Amazon Elastic Container Registry (Amazon ECR).

The AWS DLCs are used in Amazon SageMaker as the default vehicles for your SageMaker jobs such as training, inference, transforms etc. They've been tested for machine learning workloads on Amazon EC2, Amazon ECS and Amazon EKS services as well.

For the list of available DLC images, see Available Deep Learning Containers Images. You can find more information on the images available in Sagemaker here

License

This project is licensed under the Apache-2.0 License.

smdistributed.dataparallel and smdistributed.modelparallel are released under the AWS Customer Agreement.

Getting Started

Building your Image

Running Tests Locally

Getting started

We describe here the setup to build and test the DLCs on the platforms Amazon SageMaker, EC2, ECS and EKS.

We take an example of building a MXNet GPU python3 training container.

Ensure you have access to an AWS account i.e. setup your environment such that awscli can access your account via either an IAM user or an IAM role. We recommend an IAM role for use with AWS. For the purposes of testing in your personal account, the following managed permissions should suffice:
-- AmazonEC2ContainerRegistryFullAccess
-- AmazonEC2FullAccess
-- AmazonEKSClusterPolicy
-- AmazonEKSServicePolicy
-- AmazonEKSServiceRolePolicy
-- AWSServiceRoleForAmazonEKSNodegroup
-- AmazonSageMakerFullAccess
-- AmazonS3FullAccess
Create an ECR repository with the name “beta-mxnet-training” in the us-west-2 region
Ensure you have docker client set-up on your system - osx/ec2

Clone the repo and set the following environment variables:

export ACCOUNT_ID=<YOUR_ACCOUNT_ID>
export REGION=us-west-2
export REPOSITORY_NAME=beta-mxnet-training

aws ecr get-login-password --region us-west-2 | docker login --username AWS --password-stdin $ACCOUNT_ID.dkr.ecr.us-west-2.amazonaws.com

Assuming your working directory is the cloned repo, create a virtual environment to use the repo and install requirements
```
python3 -m venv dlc
source dlc/bin/activate
pip install -r src/requirements.txt
```
Perform the initial setup
```
bash src/setup.sh mxnet
```

Building your image

The paths to the dockerfiles follow a specific pattern e.g., mxnet/training/docker/<version>/<python_version>/Dockerfile.

These paths are specified by the buildspec.yml residing in mxnet/training/buildspec.yml i.e. <framework>/<training|inference>/buildspec.yml. If you want to build the dockerfile for a particular version, or introduce a new version of the framework, re-create the folder structure as per above and modify the buildspec.yml file to specify the version of the dockerfile you want to build.

To build all the dockerfiles specified in the buildspec.yml locally, use the command
```
python src/main.py --buildspec mxnet/training/buildspec.yml --framework mxnet
```
The above step should take a while to complete the first time you run it since it will have to download all base layers and create intermediate layers for the first time. Subsequent runs should be much faster.

If you would instead like to build only a single image

python src/main.py --buildspec mxnet/training/buildspec.yml \
                   --framework mxnet \
                   --image_types training \
                   --device_types cpu \
                   --py_versions py3

The arguments —image_types, —device_types and —py_versions are all comma separated list who’s possible values are as follows:
```
--image_types <training/inference>
--device_types <cpu/gpu>
--py_versions <py2/py3>
```

For example, to build all gpu, training containers, you could use the following command

python src/main.py --buildspec mxnet/training/buildspec.yml \
                   --framework mxnet \
                   --image_types training \
                   --device_types gpu \
                   --py_versions py3

Upgrading the framework version

Suppose, if there is a new framework version for MXNet (version 1.7.0) then this would need to be changed in the buildspec.yml file for MXNet training.

# mxnet/training/buildspec.yml
  1   account_id: &ACCOUNT_ID <set-$ACCOUNT_ID-in-environment>
  2   region: &REGION <set-$REGION-in-environment>
  3   framework: &FRAMEWORK mxnet
  4   version: &VERSION 1.6.0 *<--- Change this to 1.7.0*
      ................

The dockerfile for this should exist at mxnet/docker/1.7.0/py3/Dockerfile.gpu. This path is dictated by the docker_file key for each repository.

# mxnet/training/buildspec.yml
 41   images:
 42     BuildMXNetCPUTrainPy3DockerImage:
 43       <<: *TRAINING_REPOSITORY
          ...................
 49       docker_file: !join [ docker/, *VERSION, /, *DOCKER_PYTHON_VERSION, /Dockerfile., *DEVICE_TYPE ]

Build the container as described above.

Adding artifacts to your build context

If you are copying an artifact from your build context like this:

# deep-learning-containers/mxnet/training/docker/1.6.0/py3
COPY README-context.rst README.rst

then README-context.rst needs to first be copied into the build context. You can do this by adding the artifact in the framework buildspec file under the context key:

# mxnet/training/buildspec.yml
 19 context:
 20   README.xyz: *<---- Object name (Can be anything)*
 21     source: README-context.rst *<--- Path for the file to be copied*
 22     target: README.rst *<--- Name for the object in** the build context*

Adding it under context makes it available to all images. If you need to make it available only for training or inference images, add it under training_context or inference_context.

 19   context:
    .................
 23       training_context: &TRAINING_CONTEXT
 24         README.xyz:
 25           source: README-context.rst
 26           target: README.rst
    ...............

If you need it for a single container add it under the context key for that particular image:

 41   images:
 42     BuildMXNetCPUTrainPy3DockerImage:
 43       <<: *TRAINING_REPOSITORY
          .......................
 50       context:
 51         <<: *TRAINING_CONTEXT
 52         README.xyz:
 53           source: README-context.rst
 54           target: README.rst

Build the container as described above.

Adding a package

The following steps outline how to add a package to your image. For more information on customizing your container, see Building AWS Deep Learning Containers Custom Images.

Suppose you want to add a package to the MXNet 1.6.0 py3 GPU docker image, then change the dockerfile from:

# mxnet/training/docker/1.6.0/py3/Dockerfile.gpu
139 RUN ${PIP} install --no-cache --upgrade \
140     keras-mxnet==2.2.4.2 \
...........................
159     ${MX_URL} \
160     awscli

139 RUN ${PIP} install --no-cache --upgrade \
140     keras-mxnet==2.2.4.2 \
...........................
160     awscli \
161     octopush

Build the container as described above.

Running tests locally

As part of your iteration with your PR, sometimes it is helpful to run your tests locally to avoid using too many extraneous resources or waiting for a build to complete. The testing is supported using pytest.

Similar to building locally, to test locally, you’ll need access to a personal/team AWS account. To test out:

Either on an EC2 instance with the deep-learning-containers repo cloned, or on your local machine, make sure you have the images you want to test locally (likely need to pull them from ECR). Then change directory into the cloned folder. Install the requirements for tests.
```
cd deep-learning-containers/
pip install -r src/requirements.txt
pip install -r test/requirements.txt
```
In a shell, export environment variable DLC_IMAGES to be a space separated list of ECR uris to be tested. Set CODEBUILD_RESOLVED_SOURCE_VERSION to some unique identifier that you can use to identify the resources your test spins up. Set PYTHONPATH as the absolute path to the src/ folder. Example: [Note: change the repository name to the one setup in your account]
```
export DLC_IMAGES="$ACCOUNT_ID.dkr.ecr.us-west-2.amazonaws.com/pr-pytorch-training:training-gpu-py3 $ACCOUNT_ID.dkr.ecr.us-west-2.amazonaws.com/pr-mxnet-training:training-gpu-py3"
export PYTHONPATH=$(pwd)/src
export CODEBUILD_RESOLVED_SOURCE_VERSION="my-unique-test"
```
Our pytest framework expects the root dir to be test/dlc_tests, so change directories in your shell to be here
```
cd test/dlc_tests
```
To run all tests (in series) associated with your image for a given platform, use the following command
```
# EC2
pytest -s -rA ec2/ -n=auto
# ECS
pytest -s -rA ecs/ -n=auto

#EKS
cd ../
export TEST_TYPE=eks
python test/testrunner.py
```
Remove -n=auto to run the tests sequentially.
To run a specific test file, provide the full path to the test file
```
pytest -s ecs/mxnet/training/test_ecs_mxnet_training.py
```
To run a specific test function (in this example we use the cpu dgl ecs test), modify the command to look like so:
```
pytest -s ecs/mxnet/training/test_ecs_mxnet_training.py::test_ecs_mxnet_training_dgl_cpu
```

To run SageMaker local mode tests, launch a cpu or gpu EC2 instance with latest Deep Learning AMI.

Clone your github branch with changes and run the following commands

git clone https://github.com/{github_account_id}/deep-learning-containers/
cd deep-learning-containers && git checkout {branch_name}

$(aws ecr get-login --no-include-email --registry-ids ${aws_id} --region ${aws_region})

Change to the appropriate directory (sagemaker_tests/{framework}/{job_type}) based on framework and job type of the image being tested. The example below refers to testing mxnet_training images
```
cd test/sagemaker_tests/mxnet/training/
pip3 install -r requirements.txt
```

To run the SageMaker local integration tests (aside from tensorflow_inference), use the pytest command below:

python3 -m pytest -v integration/local --region us-west-2 \
--docker-base-name ${aws_account_id}.dkr.ecr.us-west-2.amazonaws.com/mxnet-inference \
 --tag 1.6.0-cpu-py36-ubuntu18.04 --framework-version 1.6.0 --processor cpu \
 --py-version 3

To test tensorflow_inference py3 images, run the command below:

python3 -m  pytest -v integration/local \
--docker-base-name ${aws_account_id}.dkr.ecr.us-west-2.amazonaws.com/tensorflow-inference \
--tag 1.15.2-cpu-py36-ubuntu16.04 --framework-version 1.15.2 --processor cpu

To run SageMaker remote tests on your account please setup following pre-requisites
- Create an IAM role with name “SageMakerRole” in the above account and add the below AWS Manged policies
```
AmazonSageMakerFullAccess
```
- Change to the appropriate directory (sagemaker_tests/{framework}/{job_type}) based on framework and job type of the image being tested." The example below refers to testing mxnet_training images
```
cd test/sagemaker_tests/mxnet/training/
pip3 install -r requirements.txt
```
- To run the SageMaker remote integration tests (aside from tensorflow_inference), use the pytest command below:
```
pytest integration/sagemaker/test_mnist.py \
--region us-west-2 --docker-base-name mxnet-training \
--tag training-gpu-py3-1.6.0 --framework-version 1.6.0 --aws-id {aws_id} \
--instance-type ml.p3.8xlarge
```
- For tensorflow_inference py3 images run the below command
```
python3 -m pytest test/integration/sagemaker/test_tfs. --registry {aws_account_id} \
--region us-west-2  --repo tensorflow-inference --instance-types ml.c5.18xlarge \
--tag 1.15.2-py3-cpu-build --versions 1.15.2
```

To run SageMaker benchmark tests on your account please perform the following steps:

Create a file named sm_benchmark_env_settings.config in the deep-learning-containers/ folder

Add the following to the file (commented lines are optional):

export DLC_IMAGES="<image_uri_1-you-want-to-benchmark-test>"
# export DLC_IMAGES="$DLC_IMAGES <image_uri_2-you-want-to-benchmark-test>"
# export DLC_IMAGES="$DLC_IMAGES <image_uri_3-you-want-to-benchmark-test>"
export BUILD_CONTEXT=PR
export TEST_TYPE=benchmark-sagemaker
export CODEBUILD_RESOLVED_SOURCE_VERSION=$USER
export REGION=us-west-2

Run:
```
source sm_benchmark_env_settings.config
```

To test all images for multiple frameworks, run:

pip install -r requirements.txt
python test/testrunner.py

To test one individual framework image type, run:

# Assuming that the cwd is deep-learning-containers/
cd test/dlc_tests
pytest benchmark/sagemaker/<framework-name>/<image-type>/test_*.py

The scripts and model-resources used in these tests will be located at:

deep-learning-containers/test/dlc_tests/benchmark/sagemaker/<framework-name>/<image-type>/resources/

Note: SageMaker does not support tensorflow_inference py2 images.

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