在Mac OS X上安装10.11的OpenMP

问题描述

我怎样才能获得的OpenMP在Mac OSX 10.11运行，这样我就可以通过执行脚本终端的

How can I get OpenMP to run on Mac OSX 10.11, so that I can execute scripts via terminal?

我已经安装了OpenMP的： BREW安装铛-OMP

I have installed OpenMP: brew install clang-omp.

当我运行，例如：的gcc -o -fopenmp Parallel.b Parallel.c 下面前pression回报：致命错误：omp.h找不到文件

When I run, for example: gcc -fopenmp -o Parallel.b Parallel.c the following expression returns: fatal error: 'omp.h' file not found

我也尝试：酿造安装gcc --without-multilib的可惜这最终返回以下（后首次安装一些依赖）：

I have also tried: brew install gcc --without-multilib but unfortunately this eventually returned the following (after first installing some dependencies):

The requested URL returned error: 404 Not Found
Error: Failed to download resource "mpfr--patch"

任何建议变通？

推荐答案

• 安装铛-OMP

• install clang-omp

  brew install clang-omp
  




• 请确保你X code命令行工具

• make sure you xcode command line tool

  xcode-select --install
  




• 我其实有一个错误运行示例的OpenMP code，而

• I actually had one error while running a sample openmp code

  /usr/local/opt/libiomp/include/libiomp/omp.h:139:21: error: expected ';' after top level declarator extern void   __ KAI_KMPC_CONVENTION kmp_set_stacksize_s        (size_t);
  




• 只是删除​​一个空格，它是从文件之间__和KAI present

• Just remove one space that is present between __ and KAI from the file

  现在使用命令

  clang-omp -fopenmp helloopenmp.c
  

  和运行以下code

  #include <omp.h>
  #include <stdio.h>
  int main() {
      #pragma omp parallel
      printf("Hello from thread %d, nthreads %d\n", omp_get_thread_num(), omp_get_num_threads());
  }
  




• 您应该得到类似这样的输出

• You should get output similar to this

  Hello from thread 3, nthreads 4
  Hello from thread 2, nthreads 4
  Hello from thread 0, nthreads 4
  Hello from thread 1, nthreads 4
  




• 任职于OS X 10.11.3和日期2015年2月18日更新冲泡

• Worked on OS X 10.11.3 and with brew update dated 18th Feb 2015

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