Linux下TBB安装及编译

TBB,Thread Building Blocks,线程构建模块，是Intel公司开发的并行编程开发的工具。其提供C++模版库，用户不必关注线程，而专注任务本身。抽象层仅需很少的接口代码，性能上毫不逊色。且能够灵活地适合不同的多核平台，适合于跨平台的移植(如Linux, Windows, Mac)

1）在官网下载tbb源码，如下载tar.gz格式
        tar -zxvf tbbxx.tar.gz

2）进入解压缩目录下，执行make。

     若编译期间报出以下错误:

/tmp/ccxNhOc9.s: Assembler messages:
/tmp/ccxNhOc9.s:615: Error: no such instruction: `xtest'
/tmp/ccxNhOc9.s:643: Error: no such instruction: `xabort $255'
/tmp/ccxNhOc9.s:652: Error: no such instruction: `xabort $255'
/tmp/ccxNhOc9.s:658: Error: no such instruction: `xend'
/tmp/ccxNhOc9.s:825: Error: no such instruction: `xbegin .L56'
/tmp/ccxNhOc9.s:988: Error: no such instruction: `xbegin .L71'
/tmp/ccxNhOc9.s:1216: Error: no such instruction: `xabort $255'
make[1]: *** [x86_rtm_rw_mutex.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: Leaving directory `/user_data/.tmp/linux_intel64_gcc_cc4.9.1_libc2.12_kernel2.6.32_debug'
make: *** [tbb] Error 2

    则表明当前的gcc编译器不支持-mrtm。则可行的方案是注释以下几行。打开tbb目录build/linux.gcc.inc文件，注释以下几行。

# gcc 4.8 and later support RTM intrinsics, but require command line switch to enable them
ifneq (,$(shell gcc -dumpversion | egrep  "^4\.[8-9]"))
    RTM_KEY = -mrtm
#endif

    然后重新编译 make即可。

3）添加tbb变量

cd build
chmod +x *.sh
sh generate_tbbvars.sh
sh tbbvars.sh

4）将.so库移至/usr/lib，将头文件移至 /usr/local/include

cd linux_intel64_gcc_你的版本_release
cp *.so /usr/lib
cp *.so.2 /usr/lib
/sbin/ldconfig
//回到解压缩目录下 
/usr/local/include
//将头文件移至 /usr/local/include
cd include
cp *.* /usr/local/include

5）接下来检验tbb是否安装成功

cd ../examples/pipeline/square
make

如果是下面的提示，则表示tbb环境配置成功

g++ -O2 -DNDEBUG  -o square square.cpp gen_input.cpp -ltbb -lrt 
./square 0 input.txt output.txt
serial run   time = 0.249843
parallel run time = 0.0304956
elapsed time : 0.399366 seconds