FAQ

How do I connect to Beocat

Connection Settings
Hostname	beocat.cis.ksu.edu
Port	22
Username	eID
Password	eID Password

How do I compile my programs?

Serial programs

Fortran

ifort or gfortran

C/C++

icc, gcc and g++

Parallel programs

Fortran

mpif77 or mpif90

C/C++

mpicc or mpic++

How are the filesystems on Beocat set up?

Mountpoint	Local / Shared	Size	Filesystem	Advice
/home	Shared	210TB total	glusterfs on top of xfs	Good enough for most jobs
/tmp	Local	>30GB (varies per node)	ext2	Good for I/O intensive jobs

Usage Advice

For most jobs you shouldn't need to worry, your default working directory is your homedir and it will be fast enough for most tasks. I/O intensive work should use /tmp, but you will need to remember to copy your files to and from this partition as part of your job script. This is made easier through the $TMPDIR environment variable in your jobs.

Example usage of $TMPDIR in a job script

#!/bin/bash

#copy our input file to $TMPDIR to make processing faster
cp ~/experiments/input.data $TMPDIR

#use the input file we copied over to the local system
#generate the output file in $TMPDIR as well
~/bin/my_program --input-file=$TMPDIR/input.data --output-file=$TMPDIR/output.data

#copy the results back from $TMPDIR
cp $TMPDIR/output.data ~/experiments/results.$SGE_JOBID

You need to remember to copy over your data from $TMPDIR as part of your job. That directory and its contents are deleted when the job is complete.