[[PageOutline]] = GNU Parallel = GNU parallel is a shell tool for executing many small independent tasks on the multi-core platform (compute nodes). A job can be a single command or a small script that has to be run for each of the lines in the input. GNU parallel can then split the input and pipe it into commands in parallel. == Adding GNU Parallel to Environment == To use GNU parallel on the command line, {{{#!bash module load parallel }}} == GNU Parallel Syntax == * Reading commands to be run in parallel from an input file {{{ parallel [OPTIONS] < CMDFILE }}} * Reading command arguments on the command line {{{ parallel [OPTIONS] COMMAND [ARGUMENTS] ::: ARGLIST }}} * Reading command arguments from an input file {{{ parallel [OPTIONS] COMMAND [ARGUMENTS] :::: ARGFILE }}} [https://www.gnu.org/software/parallel/parallel_tutorial.html]