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README.Windows.md

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These instructions may be helpful for Windows, which is currently only partially supported:

  • You can run all algorithms and tests
  • blaze test ... does not work currently
  • The C++ accelerated library libxgates is currently not compiled to a DLL. Hence all code runs via Pythonm which is typically not a problem, except for Shor's algorithm (which will run very slowly).

You have to ensure that you have installed bazel (installation instructions) and Python (installation instructions). With Python, you need the following packages, which can all be installed via pip install <package-name>:

  • absl-py
  • numpy
  • scipy

Edit the WORKSPACE file in the root directory and adjust the paths according to your installation and following Windows' path syntax. For example (for Robert's current installation - your directories may be different):

new_local_repository(
    name = "third_party_python",
    build_file = __workspace_dir__ + "/python.BUILD",
    # Configure:
    path = "C:\\Program Files\\Python37\\include"
)

new_local_repository(
    name = "third_party_numpy",
    build_file = __workspace_dir__ + "/numpy.BUILD",
    # Configure:
    path = "C:\\Users\\robert_hundt\\AppData\\Roaming\\Python\\Python37\\site-packages\\numpy\\core"
)

Finally, point the environment variable PYTHONPATH to the root directory. For example, for cmd.exe:

set PYTHONPATH = "C:\Users\robert_hundt\qcc"

for Powershell:

$Env:PYTHONPATH = "C:\Users\robert_hundt\qcc"

With this, you can run everything, for example:

qcc $  cd src
qcc/src $ bazel run deutsch  # and all other algos
qcc/src $ cd lib
qcc/src/lib $ bazel run bell_test   # and all other tests