30 lines
1.4 KiB
Python
30 lines
1.4 KiB
Python
# Copyright 2013-2019 Lawrence Livermore National Security, LLC and other
|
|
# Spack Project Developers. See the top-level COPYRIGHT file for details.
|
|
#
|
|
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
|
|
|
|
from spack import *
|
|
|
|
|
|
class PyNumexpr3(PythonPackage):
|
|
"""Numexpr3 is a fast numerical expression evaluator for NumPy. With it,
|
|
expressions that operate on arrays (like "3*a+4*b") are accelerated and
|
|
use less memory than doing the same calculation in Python.
|
|
In addition, its multi-threaded capabilities can make use of all your
|
|
cores, which may accelerate computations, most specially if they are not
|
|
memory-bounded (e.g. those using transcendental functions).
|
|
Compared to NumExpr 2.6, functions have been re-written in a fashion such
|
|
that gcc can auto-vectorize them with SIMD instruction sets such as
|
|
SSE2 or AVX2, if your processor supports them. Use of a newer version of
|
|
gcc such as 5.4 is strongly recommended."""
|
|
homepage = "https://github.com/pydata/numexpr/tree/numexpr-3.0"
|
|
url = "https://pypi.io/packages/source/n/numexpr3/numexpr3-3.0.1a1.tar.gz"
|
|
|
|
version('3.0.1a1', sha256='de06f1b4206704b5bc19ea09b5c94350b97c211c26bc866f275252a8461b87e6')
|
|
# TODO: Add CMake build system for better control of passing flags related
|
|
# to CPU ISA.
|
|
|
|
depends_on('python@2.6:2.8,3.3:', type=('build', 'run'))
|
|
depends_on('py-numpy@1.7:', type=('build', 'run'))
|
|
depends_on('py-setuptools@18.2:', type='build')
|