Installing Ocean Tools¶

Ocean software is supported on the following operating systems:

Linux
Windows (tested on 64-bit Windows 8, 10)
Mac (tested on mac OS X 10.13)

Ocean software requires a Python environment. Python versions 3.5 and higher are supported.

Attention

D-Wave’s Ocean software stopped supporting Python 2 at the end of 2019.

For information on why many in the Python development community are requiring Python 3, see the Python 3 statement.

This section explains how to install Ocean software, either the entire suite of tools or particular tools from the D-Wave GitHub repositories listed in the navigation bar.

Most Ocean tools require that you configure a solver on your system, which might be a D-Wave system or a classical sampler that runs on your local CPU.

Python Virtual Environment¶

It’s recommended that you work in a virtual environment on your local machine; depending on your operating system, you may need to first install Python and/or virtualenv.

Download Python describes how to install Python on your local machine for supported operating system.

For Unix-based systems, which often have Python pre-installed, installation might be as simple as:
```
sudo apt-get install python<version>
```
Attention

For Windows systems, note that only 64-bit Python is supported.
Install virtualenv describes how to install the virtualenv tool for creating isolated Python environments on your local machine for supported operating system.

For Unix-based systems, installing virtualenv is typically done with a command such as this or similar:
```
sudo pip install virtualenv
```
Create a virtual environment for your Ocean work. For example, on Unix systems you might do:
```
virtualenv ocean
source ocean/bin/activate
```
(On Windows operating system, activating a virtual environment might be done with the Scripts\activate command instead.)

Your machine is now ready to install Ocean software.

Install Ocean Software¶

The simplest way to start is to install dwave-ocean-sdk for the full suite of Ocean tools.

You can pip install the SDK inside your newly created virtual environment, typically with a command such as this or similar:
```
pip install dwave-ocean-sdk
```
Alternatively, you can clone dwave-ocean-sdk repo and install the SDK to your virtual environment; for example:
```
git clone https://github.com/dwavesystems/dwave-ocean-sdk.git
cd dwave-ocean-sdk
python setup.py install
```

Note: To install a particular tool within the SDK only, follow the link to the GitHub repository for the tool, as listed in the navigation bar, and follow the installation instructions on the README file.

Set Up Your Environment¶

For a full and easy development experience it is recommended that before you start writing code, you complete the setup of your environment with two last steps:

Install Contributor Ocean Tools

Adds non-open-source tools such as the Problem Inspector.
Configuring Access to D-Wave Solvers

Sets defaults used for accessing D-Wave compute resources.

The dwave-ocean-sdk includes an interactive CLI that steps you through setup.

In the virtual environment you created as part of Installing Ocean Tools, run the dwave setup command. The output shown below includes the interactive prompts and placeholder replies for a full setup. The next sections explain the details.

$ dwave setup

Optionally install non-open-source packages and configure your environment.

Do you want to select non-open-source packages to install (y/n)? [y]:

D-Wave Drivers
These drivers enable some automated performance-tuning features.
This package is available under the 'D-Wave EULA' license.
The terms of the license are available online: https://docs.ocean.dwavesys.com/eula
Install (y/n)? [y]:
Installing: D-Wave Drivers
Successfully installed D-Wave Drivers.

D-Wave Problem Inspector
This tool visualizes problems submitted to the quantum computer and the results returned.
This package is available under the 'D-Wave EULA' license.
The terms of the license are available online: https://docs.ocean.dwavesys.com/eula
Install (y/n)? [y]:
Installing: D-Wave Problem Inspector
Successfully installed D-Wave Problem Inspector.

Creating the D-Wave configuration file.
Configuration file not found; the default location is: /home/jane/.config/dwave/dwave.conf
Confirm configuration file path [/home/jane/.config/dwave/dwave.conf]:
Profile (create new) [prod]:
API endpoint URL [skip]:
Authentication token [skip]: ABC-1234567890abcdef1234567890abcdef
Default client class (qpu or sw) [qpu]:
Default solver [skip]:
Configuration saved.

Install Contributor Ocean Tools¶

The interactive dwave setup and dwave install commands of the the dwave-ocean-sdk step you through installation of non-open-source (“contrib”) tools.

If you did not install contributor packages with the dwave setup command in the Set Up Your Environment section, or want to add packages at a later time, you can use it again then or use the dwave install command.

$ dwave install --help
Usage: dwave install [OPTIONS] [PACKAGES]...

   Install optional non-open-source Ocean packages.

Options:
  -l, --list     List available contrib (non-OSS) packages
  -a, --all      Install all contrib (non-OSS) packages
  -v, --verbose  Increase output verbosity
  --help         Show this message and exit.

Both commands describe the tools and enable you to select which if any to install.

Most Ocean tools solve problems on a solver, which is a compute resource such as a D-Wave system or CPU, and might require that you configure a default solver. Configuring Access to D-Wave Solvers describes the next step of setting up your environment, how to configure your system to access D-Wave or other remote solvers.