Queue check function `myq` for godel supercomputer

Queue_check_function_for_godel.md

Queue check function for godel

December 19, 2019

Justin C. Bagley, Ph.D.
University of Missouri-St. Louis (UMSL)
Virginia Commonwealth University (VCU)

myq

This is the myq function, which I wrote at VCU on May 7, 2018, in order to automate quickly providing improved queue statistics from the command line while using VCU's godel supercomputer. The godel cluster uses a Torque/PBS resource management system, and this takes place of godel's qstat command (common to these types of systems). myq may not work without qrsh-ing onto a compute node.

Usage: $ myq.

Here is the function:

myq () {
#
        calc () {
                bc -l <<< "$@"
        }
#
        echo "------------------------------------------------";
        echo QUEUE STATISTICS for $(date);
        echo "------------------------------------------------";
#
        MY_QSTAT_LINES="$(qstat | wc -l)";
        MY_NUM_JOBS="$(calc $MY_QSTAT_LINES - 2 )";
        echo "Current number of jobs: $MY_NUM_JOBS";
#
        MY_RUNNING_JOBS="$(qstat | grep -h '\ r\ ' | wc -l)";
        MY_PROPORTION_RUNNING="$(calc $MY_RUNNING_JOBS / $MY_NUM_JOBS)";
        MY_PERCENT_RUNNING="$(calc $MY_PROPORTION_RUNNING*100 | sed 's/\(\.[0-9]\)[0-9]*/\1/g')";
        echo "Running jobs: $MY_RUNNING_JOBS ($MY_PERCENT_RUNNING%)";
#
        ADDING_MY_SLOT_SIZES="$(qstat | grep -h '\ r\ ' | sed 's/^[0-9]*\ [0-9\.A-Za-z]*\ .*godel[0-9]*\ //g' | sed 's/\ //g' | sed 's/$/+/g' | tr -d '\n' | sed 's/\+$//')";
        MY_SLOT_SIZE_TOTAL="$(calc $ADDING_MY_SLOT_SIZES)";
        MY_PROPORTION_SLOTS="$(calc $MY_SLOT_SIZE_TOTAL / 200)";
        MY_PERCENT_SLOTS="$(calc $MY_PROPORTION_SLOTS*100 | sed 's/\(\.[0-9]\)[0-9]*/\1/g')";
        echo "Current slot use: $MY_SLOT_SIZE_TOTAL ($MY_PERCENT_SLOTS%)";
        MY_REMAINING_SLOTS="$(calc 200 - $MY_SLOT_SIZE_TOTAL)";
        echo "Remaining slots: $MY_REMAINING_SLOTS";
#
        echo "";
#
        qstat;
#
}