pyfma
Fused multiply-add for Python.
Fused multiply-add computes (x*y) + z with a single rounding. Useful for dot products, matrix multiplications, polynomial evaluations (e.g., with Horner's rule), Newton's method for evaluating functions, convolutions, artificial neural networks etc.
Use as
import pyfma
out = pyfma.fma(3.0, 2.0, 1.0) # 3.0*2.0 + 1.0 = 7.0
Also works with NumPy inputs:
import numpy
import pyfma
x = numpy.random.rand(3, 4, 5)
y = numpy.random.rand(3, 4, 5)
z = numpy.random.rand(3, 4, 5)
out = pyfma.fma(x, y, z)
Built with pybind11.
Caution The C/C++ implementation of FMA in MS Windows is reportedly broken. Use with care.
Installation
pyfma can be installed from the Python Package Index, so with
pip install pyfma
you can install/upgrade.
Manual installation
For manual installation (if you're a developer or just really keen on getting the bleeding edge version of pyfma), there are two possibilities:
- Get the sources, do
pip install .. This does the trick most the time. - As a fallback, there's a CMake-based installation. Simply go
cmake /path/to/sources/andmake.
Testing
To run the pyfma unit tests, check out this repository and type
tox
1 Dec 18, 2021
3 Jan 16, 2022
1 Jan 7, 2022
1 Jun 1, 2022
1 Jan 10, 2022
2 Feb 7, 2022
12 Oct 17, 2022
64 Sep 28, 2022
1 Oct 31, 2021
3 Feb 17, 2021
3 Jan 17, 2022
83 Dec 07, 2022
14 Mar 25, 2022
1 Jan 01, 2022
1 Dec 18, 2022
6 Oct 02, 2022
1 Apr 02, 2022
1 Nov 30, 2021
5 Oct 22, 2021
449 Dec 26, 2022
9 Dec 07, 2022
9 Jul 11, 2022
2 Mar 01, 2022
1 Oct 30, 2021
4 Jan 11, 2022
2 Oct 15, 2021
15 Dec 18, 2022
0 May 03, 2022
3 Jun 25, 2022