NAME

sbank time - time calculator

SYNOPSIS

sbank time subcommand [OPTION]...

DESCRIPTION

Collection of shell scripts for estimating amount of time for a given set of nodes, ntasks, cores and time and converting a slurm time string to hours.

TIME can be one of the following formats (integer values only):

days-hours:minutes:seconds
days-hours:minutes
days-hours
hours:minutes:seconds
minutes:seconds
minutes

  • calc - convert slurm time string to hours

    -h

    show help message

    -t TIME

    Specify time to convert

  • estimate - estimate the number of hours for a given number of tasks, nodes, cores and wall time hours.

    -h

    show help message

    -N, --nodes

    Specify the number nodes, this option conflicts with ntasks, and requires that the number of cores per node must be specified.

    -n, --ntasks

    Specify the number of tasks, this option conflicts with nodes and does not require that

    -c, --cores

    Specify the number of cores per node, this option is required for nodes and has no effect for ntasks.

    -t, --time

    Specify the time in walltime in the units of hours, it must be an integer value and non-negative.

  • estimatescript - estimate the number of CPU hours by parsing a sbatch script for time and core/node values

    -h

    show help message

    -s, --scriptname

    Specify the sbatch script name. It must exist, and be readable.

    -v, --verbose

    Specify verbose output

EXAMPLES

Convert the slurm time '4-00:00:00' to hours

sbank time calc -t 4-00:00:00

Estimate how many hours needed for 4 nodes each with 8 cores for 24hrs of wall time

sbank time estimate -N 4 -c 8 -t 24

Estimate how many hours needed for 32 tasks for 4 days

sbank time estimate -n 32 -t 96

Chaining the two commands together

sbank time estimate -n 32 -t $(sbank time calc -t 4-00:00:00)

Check the estimated CPU hours from a script

sbank time estimatescript -s ~/job.sh

SEE ALSO

AUTHOR

Paddy Doyle paddy@tchpc.tcd.ie Jimmy Tang jtang@tchpc.tcd.ie

COPYRIGHT

Copyright (C) 2011 Trinity Centre for High Performance Computing, Trinity College Dublin. There is NO WARRANTY, to the extent permitted by law.