Free Tier - Getting Started

Getting Access

Access to the cluster is subject to formal approval by selected members of the participating research groups. See the HPC service catalog for more information on access options.

Introductory Linux Training and Resources

If you're not familiar with basic Linux commands and usage, or if you need a refresher on these topics, please refer to the following resources from our workshop series:

For a list of recorded trainings and upcoming research computing workshops and events, please see:

https://www.cuit.columbia.edu/rcs/training

Logging In

You will need to use SSH (Secure Shell) in order to access the cluster. Windows users can use PuTTY or Cygwin. MacOS users can use the built-in Terminal application.

Users log in to the cluster's submit node, located at terremoto.rcs.columbia.edu. If logging in from a command line, type:

$ ssh <UNI>@terremoto.rcs.columbia.edu

where <UNI> is your Columbia UNI. Please make sure not to include the angle brackets ('<' and' >') in your command; they only represent UNI as a variable entity.

Once prompted, you need to provide your usual Columbia password.

Submit Account

You must specify your account whenever you submit a job to the cluster. You can use the following table to identify the account name to use.

Account	Full Name
action	Costa Lab
apam	Applied Physics and Applied Mathematics
astro	Astronomy and Astrophysics
bpx	Biology at Physical Extremes
ccl	Center for Climate and Life
cheme	Chemical Engineering
cmt	Condensed Matter Theory
cwc	Columbia Water Center
dsi	Data Science Institute
dslab	Shohamy Lab
dsp	Peterka Lab
edu	Education Users
elsa	Polar Group
emlab	Key EM Lab
fcs	Frontiers in Computing Systems
free	Free Users
geco	Columbia Experimental Gravity Group
glab	Gentine Lab
gsb	Graduate School of Business
hblab	Bussemaker Lab
heat	Heat Lab
issa	Issa Lab
jalab	Austermann Lab
katt	Hirschberg Speech Lab
ldeo	Lamont-Doherty Earth Observatory
mfplab	Przeworski Lab
mphys	Materials Physics
nklab	Kriegeskorte Lab
ocp	Ocean and Climate Physics
pimri	Psychiatric Institute
psych	Psychology
qmech	Quantum Mechanics
rent<UNI>	Renters
seasdean	School of Engineering and Applied Science
sipa	School of International and Public Affairs
spice	Simulations Pertaining to or Involving Compact-object Explosions
sscc	Social Science Computing Committee
stats	Statistics
stock	Stockwell Lab
sun	Sun Lab
theory	Theoretical Neuroscience
ton	Ton Dieker Lab
tosches	Tosches Lab
tzsts	Tian Zheng Statistics
xray	X Ray Lab
zi	Zuckerman Institute

Your First Cluster Job

Submit Script

This script will print "Hello World", sleep for 10 seconds, and then print the time and date. The output will be written to a file in your current directory.

In order for this example to work you need to replace <ACCOUNT> with your account name. If you don't know your account name the table in the previous section might help.

#!/bin/sh
#
# Simple "Hello World" submit script for Slurm.
#
# Replace <ACCOUNT> with your account name before submitting.
#
#SBATCH --account=<ACCOUNT>      # The account name for the job.
#SBATCH --job-name=HelloWorld    # The job name.
#SBATCH -c 1                     # The number of cpu cores to use.
#SBATCH --time=1:00              # The time the job will take to run (here, 1 min)
#SBATCH --mem-per-cpu=1gb        # The memory the job will use per cpu core.

echo "Hello World"
sleep 10
date

# End of script

Job Submission

If this script is saved as helloworld.sh you can submit it to the cluster with:

$ sbatch helloworld.sh

This job will create one output file name slurm-####.out, where the #'s will be replaced by the job ID assigned by Slurm. If all goes well the file will contain the words "Hello World" and the current date and time.

See the Slurm Quick Start Guide for a more in-depth introduction on using the Slurm scheduler.