Installing qsimcirq

The qsim-Cirq Python interface is available as a PyPI package for Linux, MacOS and Windows users. For all others, Dockerfiles are provided to install qsim in a containerized environment.

Before installation

Prior to installation, consider opening a virtual environment.

Prerequisites are included in the requirements.txt file, and will be automatically installed along with qsimcirq.

If you'd like to develop qsimcirq, a separate set of dependencies are includes in the dev-requirements.txt file. You can install them with pip3 install -r dev-requirements.txt or pip3 install qsimcirq[dev].

Linux installation

We provide qsimcirq Python wheels on 64-bit x86 architectures with Python 3.{10,11,12,13}. The installation process will automatically check for CUDA and GPUs on your computer if they exist and attempt to build a version of qsim that can make use of the GPU(s). (Note that this is presently an installation-time action and will take several minutes to finish.)

Simply run pip3 install qsimcirq.

MacOS installation

We provide qsimcirq Python wheels on x86 and Apple Silicon architectures with Python 3.{10,11,12,13}.

Simply run pip3 install qsimcirq.

Note that, due to architectural differences, CUDA support is not available on MacOS. The version of qsimcirq on MacOS will only use the CPU, without GPU acceleration.

Windows installation

We provide qsimcirq Python wheels on 64-bit x86 and amd64 architectures with Python 3.{10,11,12,13}.

Simply run pip3 install qsimcirq.

Conda Installation

qsimcirq is also available on conda-forge for Linux x86 including CUDA builds and MacOS x86 and Apple Silicon ARM64. To install qsimcirq using conda, you can use the following command:

conda install -c conda-forge qsimcirq

This will install the qsimcirq package from the conda-forge channel.

Help! There's no compatible wheel for my machine!

If existing wheels do no meet your needs, please open an issue with your machine configuration (i.e., CPU architecture, Python version) and consider using the Docker config provided in the qsim GitHub repository.

Testing

After installing qsimcirq on your machine, you can test the installation by copying qsimcirq_tests/qsimcirq_test.py to your machine and running python3 -m pytest qsimcirq_test.py.

The file qsimcirq_test.py also has examples of how to use qsimcirq.