You can install the package with the command below, depending on your os:
$ yum install ulyaoth-parallel
$ dnf install ulyaoth-parallel

Parallel

GNU parallel is a shell tool for executing jobs in parallel using one or more computers. A job can be a single command or a small script that has to be run for each of the lines in the input. The typical input is a list of files, a list of hosts, a list of users, a list of URLs, or a list of tables. A job can also be a command that reads from a pipe. GNU parallel can then split the input and pipe it into commands in parallel.

Available Packages:

Package Version
ulyaoth-parallel 20170622

Supported Operating Systems:

Operating Systems Versions
Amazon Linux latest
CentOS 6, 7
Fedora 19, 20, 21, 22, 23, 24, 25
Oracle Linux 6, 7
Red Hat 6, 7
Scientific Linux 6, 7

ulyaoth support