# TAO Toolkit Quick Start

The NVIDIA TAO Toolkit, built on TensorFlow and PyTorch, simplifies and accelerates the model training process by abstracting away the complexity of AI models and the deep learning framework. You can use the power of transfer learning to fine-tune NVIDIA pretrained models with your own data and optimize the model for inference throughput — all without the need for AI expertise or large training datasets.

[TAO quick start video](https://www.nvidia.com/en-us/on-demand/session/other2022-tao/).

## TAO Toolkit 5.0
TAO Toolkit 5.0 version packages containers, models, Jupyter notebooks, start-up script and Helm chart for K8s deployment. Here are list of assets as part of TAO 5.0

### Containers

The containers for the TAO Toolkit 5.0 are hosted on NGC under this [instance](https://catalog.ngc.nvidia.com/orgs/nvidia/teams/tao/containers/tao-toolkit
).

| **Container Name** | **Description** | **TAG**|
| :-- | :-- | :--|
| TAO TensorFlow 1 | TensorFlow 1.15.x container for training DNNs | nvcr.io/nvidia/tao/tao-toolkit:5.0.0-tf1.15.5 |
| TAO TensorFlow 2 | TensorFlow 2.11.x container for training DNNs | nvcr.io/nvidia/tao/tao-toolkit:5.0.0-tf2.11.0 |
| TAO PyTorch | PyTorch container for training DNNs | nvcr.io/nvidia/tao/tao-toolkit:5.0.0-pyt |
| TAO Deploy | TensorRT container for optimization | nvcr.io/nvidia/tao/tao-toolkit:5.0.0-deploy |
| TAO Data Service | Container for AI-assisted annotation and few other data services | nvcr.io/nvidia/tao/tao-toolkit:5.0.0-dataservice |
| TAO Services | Container for TAO services | nvcr.io/nvidia/tao/tao-toolkit:5.0.0-api |

### Resources

| **Container Name** | **Description** | **Location**|
| :-- | :-- | :--|
| TAO Toolkit Getting Started | Resource to help get started with TAO Toolkit. | [nvidia/tao/tao-getting-started](https://catalog.ngc.nvidia.com/orgs/nvidia/teams/tao/resources/tao-getting-started) |

### Helm Chart
The TAO Toolkit Services Helm chart is hosted on NGC at [nvidia/tao/tao-toolkit-api](https://catalog.ngc.nvidia.com/orgs/nvidia/teams/tao/helm-charts/tao-toolkit-api)

### Models
The following models are released as part of the TAO Toolkit 5.0.

| **Model Name** | **Description** | **NGC Instance**|
| :-- | :-- | :--|
| Pre-trained NVImageNet Back Bone weights | Backbone weights trained on NVImageNet to facilitate transfer learning using TAO | [nvidia/tao/pretrained_nvimagenet_backbones](https://catalog.ngc.nvidia.com/org/nvidia/teams/tao/models/pretrained_nvimagenet_backbones) |
| Pre-trained ImageNet Back Bone weights | Backbone weights trained on ImageNet to facilitate transfer learning using TAO | [nvidia/tao/pretrained_imagenet_backbones](https://catalog.ngc.nvidia.com/org/nvidia/teams/tao/models/pretrained_imagenet_backbones) |
| Optical Character Recognition | Model to recognise characters from a preceding OCDNet model | [nvidia/tao/ocrnet](https://catalog.ngc.nvidia.com/org/nvidia/teams/tao/models/ocrnet) |
| Optical Character Detection | Network to detect characters in an image | [nvidia/tao/ocdnet](https://catalog.ngc.nvidia.com/org/nvidia/teams/tao/models/ocdnet) |
| Mask Auto Label | Pretrained model to generate semantic segmentation labels | [nvidia/tao/mask_auto_label](https://catalog.ngc.nvidia.com/org/nvidia/teams/tao/models/mask_auto_label) |

## Requirements

### Recommended Hardware requirements

The following system configuration is recommended to achieve reasonable training performance with TAO Toolkit and supported models provided:

* 16 GB system RAM
* 16 GB of GPU RAM
* 8 core CPU
* 1 NVIDIA GPU
* 100 GB of SSD space

TAO Toolkit is supported on discrete GPUs, such as H100, A100, A40, A30, A2, A16, A100x, A30x, V100, T4, Titan-RTX and Quadro-RTX.

> Note: TAO Toolkit is not supported on GPU's before the Pascal generation

### Software requirements

| **Software** | **Version** | **Comment** |
| :--- | :--- | :-- |
| Ubuntu LTS | 20.04 ||
| python | >=3.6.9<3.7 | Not needed if you are using TAO API $See #3 below$ |
| docker-ce | >19.03.5 | Not needed if you are using TAO API $See #3 below$ |
| docker-API | 1.40 | Not needed if you are using TAO API $See #3 below$ |
| `nvidia-container-toolkit` | >1.3.0-1 | Not needed if you are using TAO API $See #3 below$ |
| nvidia-container-runtime | 3.4.0-1 | Not needed if you are using TAO API $See #3 below$ |
| nvidia-docker2 | 2.5.0-1 | Not needed if you are using TAO API $See #3 below$ |
| nvidia-driver | >525.85 | Not needed if you are using TAO API $See #3 below$ |
| python-pip | >21.06 | Not needed if you are using TAO API $See #3 below$ |

## Package Content

Download the TAO package which contains startup scripts, Jupyter notebooks and config files. 
TAO is supported on Google Colab; if you want to try on Colab, you can skip this step and directly scroll down to [#4 in the How to run TAO](#colab) section.

 ngc registry resource download-version "nvidia/tao/tao-getting-started:5.0.0 --dest ./"
 cd ./getting_started_v5.0.0


### File Hierarchy

 setup
 |--> quickstart_launcher.sh
 |--> quickstart_api_bare_metal
 |--> quickstart_api_aws_eks
 |--> quickstart_api_azure_aks
 |--> quickstart_api_gcp_gke
 notebooks
 |--> tao_api_starter_kit
 |--> api
 |--> automl
 |--> end2end
 |--> dataset_prepare
 |--> client
 |--> automl
 |--> end2end
 |--> dataset_prepare
 |--> tao_launcher_starter_kit
 |--> dino
 |--> deformable_detr
 |--> classification_pyt
 |--> ocdnet
 |--> ...
 |--> tao_data_services
 |--> data
 |--> ...

## How to run TAO?

TAO is available as a docker container or as a collection of Python wheels.

There are 4 ways to run TAO depending on user preference and their setup. See the full list below.

#### 1. Launcher CLI

The TAO Launcher is a lightweight Python based CLI application to run TAO. The launcher basically acts as a front-end for the multiple TAO Toolkit containers built on both PyTorch and Tensorflow. The multiple containers essentially get launched automatically based on the type of model you plan to use for your computer vision or conversational AI use-cases. 


<img src="https://github.com/vpraveen-nv/model_card_images/raw/main/api/tao_launcher.jpg" width="300"> TAO Launcher 


To get started, use the `setup/quickstart_launcher.sh` to validate your setup and install TAO launcher. Jupyter notebooks to train using the Launcher is provided under `notebooks/launcher_starter_kit`.

Detail instructions on installing pre-requisite and setup is provided in [TAO documentation - Launcher](https://docs.nvidia.com/tao/tao-toolkit/text/tao_toolkit_quick_start_guide.html)

#### 2. Directly from Container

Users have option to also run TAO directly using the docker container. To use container directly, user needs to know which container to pull. There are multiple containers under TAO, and depending on the model that you want to train you will need to pull the appropriate container. This is not required when using the Launcher CLI.

 export DOCKER_REGISTRY="nvcr.io"
 export DOCKER_NAME="nvidia/tao/tao-toolkit"
 export DOCKER_TAG="***" ## for TensorFlow docker
 export DOCKER_TAG="***" ## for PyTorch docker
 export DOCKER_CONTAINER=$DOCKER_REGISTRY/$DOCKER_NAME:$DOCKER_TAG

 docker run -it --rm --gpus all -v /path/in/host:/path/in/docker $DOCKER_CONTAINER \
 detectnet_v2 train -e /path/to/experiment/spec.txt -r /path/to/results/dir -k $KEY --gpus 4

More information about running directly from docker is provided in [TAO documentation - Container](https://docs.nvidia.com/tao/tao-toolkit/text/working_with_the_containers.html)

#### 3. TAO APIs

TAO Toolkit API is a Kubernetes service that enables building end-to-end AI models using REST APIs. The API service can be installed on a Kubernetes cluster (local / AWS EKS) using a Helm chart along with minimal dependencies. TAO toolkit jobs can be run using GPUs available on the cluster and can scale to a multi-node setting. Users can use a TAO client CLI to interact with TAO services remotely or can integrate it in their own apps and services directly using REST APIs.


<img src="https://docs.nvidia.com/tao/tao-toolkit/_images/tao_toolkit_api.png" width="500"> TAO API 


To get started, use the provided one-click deploy script to deploy either on bare-metal setup or on managed Kubernetes service like Amazon EKS. Jupyter notebooks to train using the APIs directly or using the client app is provided under `notebooks/api_starter_kit` 
`setup/quickstart_api_bare_metal` 
`setup/quickstart_api_aws_eks` 

More information about setting up the API services and the API is provided in [TAO documentation - API](https://docs.nvidia.com/tao/tao-toolkit/text/tao_toolkit_api/api_overview.html)

#### 4. Python Wheel <a class="anchor" name="colab"></a>

Users can also run TAO directly on bare-metal without docker or K8s. Users can deploy TAO notebooks directly on Google Colab without having to configure infrastructure. The full instructions are provided in the Colab notebook below.

| **CV Task** | **Model Arch** | **One-click Deploy** |
| :--- | :--- | :-- |
| Classification | ResNet18 | [Train on Colab](https://colab.research.google.com/github/NVIDIA-AI-IOT/nvidia-tao/blob/main/tensorflow/classification/classification.ipynb) |
| Multi-task Classification | ResNet18 | [Train on Colab](https://colab.research.google.com/github/NVIDIA-AI-IOT/nvidia-tao/blob/main/tensorflow/multitask_classification/multitask_classification.ipynb) |
| Object Detection | DSSD | [Train on Colab](https://colab.research.google.com/github/NVIDIA-AI-IOT/nvidia-tao/blob/main/tensorflow/dssd/dssd.ipynb) |
| Object Detection | EfficientDet | [Train on Colab](https://colab.research.google.com/github/NVIDIA-AI-IOT/nvidia-tao/blob/main/tensorflow/efficientdet/efficientdet.ipynb) |
| Object Detection | RetinaNet | [Train on Colab](https://colab.research.google.com/github/NVIDIA-AI-IOT/nvidia-tao/blob/main/tensorflow/retinanet/retinanet.ipynb) |
| Object Detection | SSD | [Train on Colab](https://colab.research.google.com/github/NVIDIA-AI-IOT/nvidia-tao/blob/main/tensorflow/ssd/ssd.ipynb) |
| Object Detection | YOLOv3 | [Train on Colab](https://colab.research.google.com/github/NVIDIA-AI-IOT/nvidia-tao/blob/main/tensorflow/yolo_v3/yolo_v3.ipynb) |
| Object Detection | YOLOv4 | [Train on Colab](https://colab.research.google.com/github/NVIDIA-AI-IOT/nvidia-tao/blob/main/tensorflow/yolo_v4/yolo_v4.ipynb) |
| Object Detection | YoloV4 Tiny | [Train on Colab](https://colab.research.google.com/github/NVIDIA-AI-IOT/nvidia-tao/blob/main/tensorflow/yolo_v4_tiny/yolo_v4_tiny.ipynb) |
| Action Recognition | ActionRecognition | [Train on Colab](https://colab.research.google.com/github/NVIDIA-AI-IOT/nvidia-tao/blob/main/pytorch/cv_notebooks/action_recognition_net/actionrecognitionnet.ipynb) |
| OCR | LPRNet | [Train on Colab](https://colab.research.google.com/github/NVIDIA-AI-IOT/nvidia-tao/blob/main/tensorflow/lprnet/lprnet.ipynb) |
| Pose Action Classification | PoseClassificationNet | [Train on Colab](https://colab.research.google.com/github/NVIDIA-AI-IOT/nvidia-tao/blob/main/pytorch/cv_notebooks/pose_classification_net/poseclassificationnet.ipynb) |
| Emotion Recognition | EmotionNet | [Train on Colab](https://colab.research.google.com/github/NVIDIA-AI-IOT/nvidia-tao/blob/main/tensorflow/emotionnet/emotionnet.ipynb) |
| Gesture Recognition | GestureNet | [Train on Colab](https://colab.research.google.com/github/NVIDIA-AI-IOT/nvidia-tao/blob/main/tensorflow/gesturenet/gesturenet.ipynb) |
| Heart Rate Estimation | HeartRateNet | [Train on Colab](https://colab.research.google.com/github/NVIDIA-AI-IOT/nvidia-tao/blob/main/tensorflow/heartratenet/heartratenet.ipynb) |

After starting TAO service locally or remotely, start Jupyter notebook

 jupyter notebook --ip 0.0.0.0 --port 8888 --allow-root

Open an internet browser on localhost and navigate to the following URL: <http://0.0.0.0:8888>

Open the notebook that you are interested in training and start training.

> Note: All the instructions to train, prune, optimize and download pretrained models are provided in the notebook.

## Jupyter notebooks

All Notebooks and required spec files are provided in this package. The table below maps which notebook to use for fine-tuning either a purpose-build models like PeopleNet or an open model architecture like YOLO.

|**Purpose-built Model** | **Launcher CLI notebook** |
|:--|:--|
| PCB Classification | notebooks/tao_launcher_starter_kit/classification_pyt/classification.ipynb |
| Retail Object Recognition | notebooks/tao_launcher_starter_kit/metric_learning_recognition/metric_learning_recognition.ipynb |
| Optical Inspection | notebook/tao_launcher_starter_kit/optical_inspection/OpticalInspection.ipynb |
| Mask Auto Label | notebooks/tao_launcher_starter_kit/mal/mal.ipynb |
| OCRNet | notebooks/tao_launcher_starter_kit/ocrnet/ocrnet.ipynb |
| OCDNet | notebooks/tao_launcher_starter_kit/ocdnet/ocdnet.ipynb |
| PeopleSemSegFormer | notebooks/tao_launcher_starter_kit/segformer/segformer.ipynb |
| PeopleNet | notebooks/tao_launcher_starter_kit/detectnet_v2/detectnet_v2.ipynb |
| TrafficCamNet | notebooks/tao_launcher_starter_kit/detectnet_v2/detectnet_v2.ipynb |
| DashCamNet | notebooks/tao_launcher_starter_kit/detectnet_v2/detectnet_v2.ipynb |
| FaceDetectIR| notebooks/tao_launcher_starter_kit/detectnet_v2/detectnet_v2.ipynb |
| VehicleMakeNet | notebooks/tao_launcher_starter_kit/classification/classification.ipynb |
| VehicleTypeNet | notebooks/tao_launcher_starter_kit/classification/classification.ipynb |
| PeopleSegNet | notebooks/tao_launcher_starter_kit/mask_rcnn/mask_rcnn.ipynb |
| PeopleSemSegNet | notebooks/tao_launcher_starter_kit/unet/unet_isbi.ipynb |
| Bodypose Estimation | notebooks/tao_launcher_starter_kit/bpnet/bpnet.ipynb |
| License Plate Detection | notebooks/tao_launcher_starter_kit/detectnet_v2/detectnet_v2.ipynb |
| License Plate Recognition | notebooks/tao_launcher_starter_kit/lprnet/lprnet.ipynb |
| Facial Landmark | notebooks/tao_launcher_starter_kit/fpenet/fpenet.ipynb |
| FaceDetect | notebooks/tao_launcher_starter_kit/facenet/facenet.ipynb |
| ActionRecognitionNet | notebooks/tao_launcher_starter_kit/action_recognition_net/actionrecognitionnet.ipynb |
| PoseClassificationNet | notebooks/tao_launcher_starter_kit/pose_classification_net/pose_classificationnet.ipynb |
| ReIdentificationNet | notebooks/tao_launcher_starter_kit/re_identification_net/reidentificationnet.ipynb |
 

|**Open model architecture**| **Jupyter notebook** |
|:--|:--|
| Deformable DETR | notebooks/tao_launcher_starter_kit/deformable_detr/deformable_detr.ipynb |
| DINO | notebooks/tao_launcher_starter_kit/dino/dino.ipynb |
| Image Classification | notebooks/tao_launcher_starter_kit/classification_pyt/classification_pyt.ipynb |
| Image Classification | notebooks/tao_launcher_starter_kit/classification_tf2/classification.ipynb |
| Image Classification | notebooks/tao_launcher_starter_kit/classification_tf1/classification.ipynb |
| Optical Inspection | notebooks/tao_launcher_starter_kit/optical_inspection/optical_inspection.ipynb |
| Metric Learning Recognition | notebooks/tao_launcher_starter_kit/metric_learning_recognition/metric_learning_recognition.ipynb |
| Segformer | notebooks/tao_launcher_starter_kit/segformer/segformer.ipynb |
| DetectNet_v2 | notebooks/tao_launcher_starter_kit/detectnet_v2/detectnet_v2.ipynb |
| FasterRCNN | notebooks/tao_launcher_starter_kit/faster_rcnn/faster_rcnn.ipynb |
| YOLOV3 | notebooks/tao_launcher_starter_kit/yolo_v3/yolo_v3.ipynb |
| YOLOV4 | notebooks/tao_launcher_starter_kit/yolo_v4/yolo_v4.ipynb |
| YOLOv4-Tiny | notebooks/tao_launcher_starter_kit/yolo_v4_tiny/yolo_v4_tiny.ipynb |
| SSD | notebooks/tao_launcher_starter_kit/ssd/ssd.ipynb |
| DSSD | notebooks/tao_launcher_starter_kit/dssd/dssd.ipynb |
| RetinaNet | notebooks/tao_launcher_starter_kit/retinanet/retinanet.ipynb |
| MaskRCNN | notebooks/tao_launcher_starter_kit/mask_rcnn/mask_rcnn.ipynb |
| UNET | notebooks/tao_launcher_starter_kit/unet/unet_isbi.ipynb |
| EfficientDet | notebooks/tao_launcher_starter_kit/efficientdet/efficientdet.ipynb |
| Mask Auto Label | notebooks/tao_launcher_starter_kit/mal/mal.ipynb
 


## Important Links

* [TAO Toolkit Documentation](https://docs.nvidia.com/tao/tao-toolkit/text/overview.html)

## Blogs

[Train like a 'pro' with AutoML in TAO](https://developer.nvidia.com/blog/training-like-an-ai-pro-using-tao-automl/) 
[Deploy TAO on Azure ML](https://developer.nvidia.com/blog/creating-custom-ai-models-using-nvidia-tao-toolkit-with-azure-machine-learning/) 
[Synthetic Data and TAO](https://developer.nvidia.com/blog/developing-and-deploying-ai-powered-robots-with-nvidia-isaac-sim-and-nvidia-tao/) 
[Action Recognition Blog](https://developer.nvidia.com/blog/developing-and-deploying-your-custom-action-recognition-application-without-any-ai-expertise-using-tao-and-deepstream/) 
[Real-time License Plate Detection](https://developer.nvidia.com/blog/creating-a-real-time-license-plate-detection-and-recognition-app/) 
[2 Pose Estimation: Part 1](https://developer.nvidia.com/blog/training-optimizing-2d-pose-estimation-model-with-tao-toolkit-part-1/) 
[Part 2](https://developer.nvidia.com/blog/training-optimizing-2d-pose-estimation-model-with-tao-toolkit-part-2/) 
[Building ConvAI with TAO Toolkit](https://developer.nvidia.com/blog/building-and-deploying-conversational-ai-models-using-tao-toolkit/) 

## License <a class="anchor" name="license"></a>

[TAO Toolkit getting Started](https://docs.nvidia.com/tao/tao-toolkit/text/tao_quick_start_guide.html)
License for TAO containers is included in the banner of the container. License for the pre-trained models are available with the model cards on NGC. By pulling and using the Train Adapt Optimize (TAO) Toolkit container to download models, you accept the terms and conditions of these [licenses](https://www.nvidia.com/en-us/data-center/products/nvidia-ai-enterprise/eula/).

TAO Toolkit Getting Started

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