A Python library using the Futhark C backend via CFFI
Project description
futhark-ffi
Python library using the Futhark C backend via CFFI
Futhark provides several compilers, 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.
A 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.
This 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.
Installation
Install Futhark, then simply
pip install futhark-ffi
Usage
Generate a C library, and build a Python binding for it
futhark-opencl --library test.fut
build_futhark_ffi test
Use the Python wrapper
import numpy as np
import _test
from futhark_ffi import Futhark
test = Futhark(_test)
res = test.test3(np.arange(10))
test.from_futhark(res)
Project details
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
Built Distributions
Hashes for futhark_ffi-0.6.1b2-py3-none-any.whl
Algorithm | Hash digest | |
---|---|---|
SHA256 | f9ce605c21964f68d1fc68990f0a53d92ae855b219b156585ddcbdb6afbf37a1 |
|
MD5 | d8fb6f7c6218a8d9ed27aea4e357a8b5 |
|
BLAKE2b-256 | beeb0bdf5cdab162a8bb566b472442d40993a1b3d6fe2559a3413890c2f4a2b7 |