CUDA-Python

CUDA Python Low-level Bindings

Building

Requirements

Dependencies of the CUDA-Python bindings and some versions that are known to
work are as follows:

  • Driver: Linux (450.80.02 or later) Windows(456.38 or later)
  • CUDA Toolkit 11.0 to 11.4 - e.g. 11.4.48
  • Cython - e.g. 0.29.21
  • Versioneer - e.g. 0.20

Compilation

To compile the extension in-place, run:

python setup.py build_ext --inplace

To compile for debugging the extension modules with gdb, pass the --debug
argument to setup.py.

Develop installation

You can use

python setup.py develop

to use the module in-place in your current Python environment (e.g. for testing
of porting other libraries to use the binding).

Build the Docs

conda env create -f docs/environment-docs.yml
conda activate cuda-python-docs

Then compile and install cuda-python following the steps above.

cd docs
make html
open build/html/index.html

Build the Docs

conda env create -f docs_src/environment-docs.yml
conda activate cuda-python-docs

Then compile and install cuda-python following the steps above.

cd docs_src
make html
open build/html/index.html

Publish the Docs

git checkout gh-pages
cd docs_src
make html
cp -a build/html/. ../docs/

Testing

Requirements

Dependencies of the test execution and some versions that are known to
work are as follows:

  • numpy-1.19.5
  • numba-0.53.1
  • matplotlib-3.3.4
  • scipy-1.6.3
  • pytest-benchmark-3.4.1

Unit-tests

You can run the included tests with:

pytest

Samples

You can run the included tests with:

pytest examples

Benchmark

You can run benchmark only tests with:

pytest --benchmark-only

Examples

The included examples are:

  • examples/extra/jit_program.py: Demonstrates the use of the API to compile and
    launch a kernel on the device. Includes device memory allocation /
    deallocation, transfers between host and device, creation and usage of
    streams, and context management.
  • examples/extra/numba_emm_plugin.py: Implements a Numba External Memory Management
    plugin, showing that this CUDA Python Driver API can coexist with other
    wrappers of the driver API.

GitHub

https://github.com/NVIDIA/cuda-python