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        "author": "Pepijn de Vos",
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        "description": "# futhark-ffi\n[![Build Status](https://travis-ci.org/pepijndevos/futhark-pycffi.svg?branch=master)](https://travis-ci.org/pepijndevos/futhark-pycffi)\n\nPython library using the Futhark C backend via CFFI\n\nFuthark provides several compiler backends, `futhark opencl` which is a C backend, and `futhark pyopencl` which is a Python backend based on PyOpenCL. However, the host-side code of the Python backend is quite slow, leading to a lot of overhead when small, frequent kernels are used.\n\nA solution to reduce this overhead is to use CFFI to used the C backend from Python, greatly reducing the calling overhead. The OpenCL code is the same, so this is not interesting for long-running kernels.\n\nThis library supports both `futhark opencl` and `futhark c`. Futhark arrays are mapped to and from Numpy arrays. Multiple outputs and multi-dimensional arrays are supported.\n\n## Installation\n\n[Install Futhark](https://futhark.readthedocs.io/en/latest/installation.html), then simply\n```bash\npip install futhark-ffi\n```\n\n## Usage\n\nGenerate a C library, and build a Python binding for it\n\n```bash\nfuthark opencl --library test.fut\nbuild_futhark_ffi test\n```\n\nUse the Python wrapper\n\n```python\nimport numpy as np\nimport _test\nfrom futhark_ffi import Futhark\n\ntest = Futhark(_test)\nres = test.test3(np.arange(10))\ntest.from_futhark(res)\n```\n\n\n",
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