fxdiv g20181121

devel/fxdiv

C/C++ header-only library for division via FP inverse multiplication

Category: devel
Maintainer: yuri@FreeBSD.org
WWW: https://github.com/Maratyszcza/FXdiv
License: MIT
USES: cmake

Description

Header-only library for division via fixed-point multiplication by inverse.

On modern CPUs and GPUs integer division is several times slower than
multiplication. FXdiv implements an algorithm to replace an integer division
with a multiplication and two shifts. This algorithm improves performance when
an application performs repeated divisions by the same divisor.

Features:
* Integer division for uint32_t, uint64_t, and size_t
* Header-only library, no installation or build required
* Compatible with C99, C++, OpenCL, and CUDA
* Uses platform-specific compiler intrinsics for optimal performance
* Covered with unit tests and microbenchmarks

Dependencies

build devel/cmake-core
build devel/ninja

Commit History

may be incomplete — full history at freebsd-ports on GitHub

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