A code generator for array-based code on CPUs and GPUs
Project description
Loopy: Transformation-Based Generation of High-Performance CPU/GPU Code
.. image:: https://gitlab.tiker.net/inducer/loopy/badges/master/pipeline.svg :alt: Gitlab Build Status :target: https://gitlab.tiker.net/inducer/loopy/commits/master .. image:: https://github.com/inducer/loopy/workflows/CI/badge.svg?branch=master&event=push :alt: Github Build Status :target: https://github.com/inducer/loopy/actions?query=branch%3Amaster+workflow%3ACI+event%3Apush .. image:: https://badge.fury.io/py/loo.py.png :alt: Python Package Index Release Page :target: https://pypi.org/project/loo.py/
Loopy lets you easily generate the tedious, complicated code that is necessary to get good performance out of GPUs and multi-core CPUs. Loopy's core idea is that a computation should be described simply and then transformed into a version that gets high performance. This transformation takes place under user control, from within Python.
It can capture the following types of optimizations:
- Vector and multi-core parallelism in the OpenCL/CUDA model
- Data layout transformations (structure of arrays to array of structures)
- Loop unrolling
- Loop tiling with efficient handling of boundary cases
- Prefetching/copy optimizations
- Instruction level parallelism
- and many more
Loopy targets array-type computations, such as the following:
- dense linear algebra,
- convolutions,
- n-body interactions,
- PDE solvers, such as finite element, finite difference, and Fast-Multipole-type computations
It is not (and does not want to be) a general-purpose programming language.
Loopy is licensed under the liberal MIT license <http://en.wikipedia.org/wiki/MIT_License>
_ and free for commercial, academic,
and private use. All of Loopy's dependencies can be automatically installed from
the package index after using::
pip install loo.py
In addition, Loopy is compatible with and enhances
pyopencl <http://mathema.tician.de/software/pyopencl>
_.
Places on the web related to Loopy:
-
Python package index <http://pypi.python.org/pypi/loo.py>
_ (download releases) Note the extra '.' in the PyPI identifier! -
Documentation <http://documen.tician.de/loopy>
_ (read how things work) -
Github <http://github.com/inducer/loopy>
_ (get latest source code, file bugs) -
Wiki <http://wiki.tiker.net/Loopy>
_ (read installation tips, get examples, read FAQ) -
Homepage <http://mathema.tician.de/software/loopy>
_
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