3 Ondemand

Ondemand, a web app for HPC.

Logging in

• eveyone log into http://ondemand.hpc.vai.org

Browsing, editing and downloading files

• earlier we browsed the various storage areas, but we can also do other things.

TASK make a folder in hpctmp

• make /varidata/researchtemp/hpctmp/your.name

Task copy a file into it.

• lets copy the folder /varidata/researchtemp/hpctmp/hpc_workshop into your folder above.

The simplest way to start doing work on a node is to grab a desktop.

TASK lets grab a linux desktop and explore it.

Using the predefined plugins (Rstudio,etc)

• A desktop is just one type of job, we have others:
• rstudio
• Jupyter
• VS code

Submitting jobs

• We can submit jobs via the web.

Task lets submit a job script.

#!/bin/bash
#SBATCH -n 1
#SBATCH -p quick
#SBATCH --job-name=zacks_job
#SBATCH --time=1:01:00

cd /varidata/researchtemp/hpctmp/your.name/hpc_workshop
gzip -v mybigfile.dat

Monitoring status

TASK Lets see the jobs on HPC.