GNU/Linux命令行中的并行处理-ParallelprocessinginGNU/Linuxcommandline

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With GNU Parallel you can do:

使用GNU并行你可以做:

parallel gzip ::: *
parallel opusenc {} {.}.opus ::: *.wav

GNU Parallel is a general parallelizer and makes is easy to run jobs in parallel on the same machine or on multiple machines you have ssh access to.

GNU Parallel是一种通用的并行程序，它使得在同一台机器上或在有ssh访问权限的多台机器上并行运行作业变得很容易。

If you have 32 different jobs you want to run on 4 CPUs, a straight forward way to parallelize is to run 8 jobs on each CPU:

如果您想在4个CPU上运行32个不同的作业，那么并行化的直接方法是在每个CPU上运行8个作业:

GNU Parallel instead spawns a new process when one finishes - keeping the CPUs active and thus saving time:

GNU并行在完成时产生一个新的进程——保持cpu的活跃，从而节省时间:

Installation

安装

For security reasons you should install GNU Parallel with your package manager, but if GNU Parallel is not packaged for your distribution, you can do a personal installation, which does not require root access. It can be done in 10 seconds by doing this:

出于安全原因，您应该在包管理器中安装GNU并行，但是如果没有为您的发行版打包GNU并行，那么您可以进行个人安装，不需要root访问。这可以在10秒内完成:

(wget -O - pi.dk/3 || curl pi.dk/3/ || fetch -o - http://pi.dk/3) | bash

For other installation options see http://git.savannah.gnu.org/cgit/parallel.git/tree/README

有关其他安装选项，请参见http://git.savannah.gnu.org/cgit/parallel.git/tree/README

Learn more

了解更多

See more examples: http://www.gnu.org/software/parallel/man.html

看到更多的例子:http://www.gnu.org/software/parallel/man.html

Watch the intro videos: https://www.youtube.com/playlist?list=PL284C9FF2488BC6D1

观看介绍视频:https://www.youtube.com/playlist?list=PL284C9FF2488BC6D1

Walk through the tutorial: http://www.gnu.org/software/parallel/parallel_tutorial.html

浏览教程:http://www.gnu.org/software/parallel/parallel_tutorial.html

Sign up for the email list to get support: https://lists.gnu.org/mailman/listinfo/parallel

注册电子邮件列表以获得支持:https://lists.gnu.org/mailman/listinfo/parallel

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When you are build Linux kernel you can use -j parameter to make command.Then you can see the multiple core been used.

在构建Linux内核时，可以使用-j参数进行命令。然后您可以看到使用了多个核心。

make -j X 

make -j number of cores + 1

使-j核数+ 1