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RcppXsimd

Overview

This library provides an Rcpp wrapper around Xsimd that is a modern, portable C++14 header-only library for SIMD intrinsics and parallelized, optimized math implementations.

Example

library(RcppXsimd)
?supportsAVX

if (supportsAVX()) {
  Sys.setenv(PKG_CPPFLAGS = "-mavx")
  Rcpp::sourceCpp(verbose = TRUE, code='
    // [[Rcpp::plugins(cpp14)]]
    // [[Rcpp::depends(RcppXsimd)]]

    #include <Rcpp.h>
    #include "xsimd/xsimd.hpp"

    // [[Rcpp::export]]
    void demoAVX() {
      xsimd::batch<double, 4> a(1.0);
      xsimd::batch<double, 4> b(1.0);
      Rcpp::Rcout << a << " + " << b << " = " << (a + b) << std::endl;
    }')
  demoAVX()
} else {
  message("AVX is not supported")
}

Development status

Acknowledgements

• This project is supported in part through the National Science Foundation grant DMS 1264153.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.