# Installation of NNI

Currently we support installation on Linux, Mac and Windows(local, remote and pai mode).

## **Installation on Linux & Mac**

* __Install NNI through pip__

  Prerequisite: `python >= 3.5`

  ```bash
  python3 -m pip install --upgrade nni
  ```

* __Install NNI through source code__

  Prerequisite: `python >=3.5`, `git`, `wget`

  ```bash
  git clone -b v0.8 https://github.com/Microsoft/nni.git
  cd nni
  ./install.sh
  ```

* __Install NNI in docker image__

  You can also install NNI in a docker image. Please follow the instructions [here](https://github.com/Microsoft/nni/tree/master/deployment/docker/README.md) to build NNI docker image. The NNI docker image can also be retrieved from Docker Hub through the command `docker pull msranni/nni:latest`.

## **Installation on Windows**

When you use PowerShell to run script for the first time, you need **run PowerShell as administrator** with this command:

```powershell
Set-ExecutionPolicy -ExecutionPolicy Unrestricted
```

  Anaconda or Miniconda is highly recommended.

* __Install NNI through pip__

  Prerequisite: `python(64-bit) >= 3.5`

  ```bash
  python -m pip install --upgrade nni
  ```

* __Install NNI through source code__

  Prerequisite: `python >=3.5`, `git`, `PowerShell`.
  
  you can install NNI as administrator or current user as follows:

  ```bash
  git clone -b v0.8 https://github.com/Microsoft/nni.git
  cd nni
  powershell .\install.ps1
  ```

## **System requirements**

Below are the minimum system requirements for NNI on Linux. Due to potential programming changes, the minimum system requirements for NNI may change over time.

||Minimum Requirements|Recommended Specifications|
|---|---|---|
|**Operating System**|Ubuntu 16.04 or above|Ubuntu 16.04 or above|
|**CPU**|Intel® Core™ i3 or AMD Phenom™ X3 8650|Intel® Core™ i5 or AMD Phenom™ II X3 or better|
|**GPU**|NVIDIA® GeForce® GTX 460|NVIDIA® GeForce® GTX 660 or better|
|**Memory**|4 GB RAM|6 GB RAM|
|**Storage**|30 GB available hare drive space|
|**Internet**|Boardband internet connection|
|**Resolution**|1024 x 768 minimum display resolution|

Below are the minimum system requirements for NNI on macOS. Due to potential programming changes, the minimum system requirements for NNI may change over time.

||Minimum Requirements|Recommended Specifications|
|---|---|---|
|**Operating System**|macOS 10.14.1 (latest version)|macOS 10.14.1 (latest version)|
|**CPU**|Intel® Core™ i5-760 or better|Intel® Core™ i7-4770 or better|
|**GPU**|NVIDIA® GeForce® GT 750M or AMD Radeon™ R9 M290 or better|AMD Radeon™ R9 M395X or better|
|**Memory**|4 GB RAM|8 GB RAM|
|**Storage**|70GB available space 7200 RPM HDD|70GB available space SSD|
|**Internet**|Boardband internet connection|
|**Resolution**|1024 x 768 minimum display resolution|

Below are the minimum system requirements for NNI on Windows, Windows 10.1809 is well tested and recommend. Due to potential programming changes, the minimum system requirements for NNI may change over time.

||Minimum Requirements|Recommended Specifications|
|---|---|---|
|**Operating System**|Windows 10|Windows 10|
|**CPU**|Intel® Core™ i3 or AMD Phenom™ X3 8650|Intel® Core™ i5 or AMD Phenom™ II X3 or better|
|**GPU**|NVIDIA® GeForce® GTX 460|NVIDIA® GeForce® GTX 660 or better|
|**Memory**|4 GB RAM|6 GB RAM|
|**Storage**|30 GB available hare drive space|
|**Internet**|Boardband internet connection|
|**Resolution**|1024 x 768 minimum display resolution|

## Further reading

* [Overview](Overview.md)
* [Use command line tool nnictl](Nnictl.md)
* [Use NNIBoard](WebUI.md)
* [Define search space](SearchSpaceSpec.md)
* [Config an experiment](ExperimentConfig.md)
* [How to run an experiment on local (with multiple GPUs)?](LocalMode.md)
* [How to run an experiment on multiple machines?](RemoteMachineMode.md)
* [How to run an experiment on OpenPAI?](PaiMode.md)
* [How to run an experiment on Kubernetes through Kubeflow?](KubeflowMode.md)
* [How to run an experiment on Kubernetes through FrameworkController?](FrameworkControllerMode.md)
