This page details how to access Open OnDemand (OOD) for Compute2 (C2). The general setup follows the same as how OOD is setup for Compute1.

Limits

Open OnDemand is designed for interactive jobs and analysis that has a GUI. In Compute2 the partitions/queues that OOD has access to are limited to the general-interactive partition and condos.

This means that for those who use the general resources on Compute2, the resources available in OOD following the same limits that the general-interactive partition has. Those limits can be seen in our Policies: User Agreements and Policies

If the resources for jobs require more than the limits of the general-interactive partition, it is recommended that analysis be run using batch jobs submitted via the command line. Help with this transition can be found via the offered Support methods: https://ris.wustl.edu/support-2/

Quickstart

1. Navigate to https://c2-ood.ris.wustl.edu

2. Select “Interactive Apps” from the top bar to see what options are available to you.
   

   

3. Fill out the required fields on the next page for your selected app.
   

   

4. Select “Launch” when ready to submit the job to Compute2

5. You should then find yourself on the “My Interactive Sessions” page. From here you can see the app queue, launch, and then offer you a button to connect to the job in your browser.
   

   

   
   

6. An example of a successfully launched RIS-THPC container on C2-OOD

Getting Started

• The compute1 platform must be connected to via ssh at least once prior to connecting to Open OnDemand to properly set up the user home directory. Instruction can be found in the Quickstart Guides - Compute1 .

• Point browser to http://ood.ris.wustl.edu.

Files

• Display files and directories in the user’s home directory.

• Due to technical OnDemand implementation limitations, users cannot navigate to storageN or scratch1 .

Jobs

• View active jobs

• Use Job Composer to create scripts and launch batch jobs.

Active Jobs

• Lists user’s currently pending and running jobs on compute1 (not exclusive to those launched via OnDemand).

• Select the red trash bin to the right of the job listing to terminate a job (same as bkill).

• Select the arrow to the left of the job listing to view job details (same as bjobs output).

Job Composer

• Create and launch batch jobs similar to using a .bsub job file.

• Job and resource parameter information can be found on the Job Execution Examples page.

• Jobs can be created from: - Default template - Specified path - Existing job (running or completed).

• Once a source is selected an editor will become available.

• Sample job file:

#!/bin/bash
#BSUB -q general
#BSUB -g /username/groupname
#BSUB -a 'docker(ubuntu)'
echo "Hello World"

• Click Save.

• Select Submit to launch a new batch job using a created script.

Clusters

• Launch command-line and batch jobs from a terminal session.

• Access to all compute1 resources available from this client node.

Interactive Apps

• Run interactive jobs with GUI.

  • Select application name from the Interactive Apps dropdown.

  • Configure storage/scratch mounts and resource options for the job.

  • Select Launch to submit the job.

• Ability to run custom images that specifically leverage the RIS noVNC image via the Custom noVNC Image application. This application also allows for extended resource usage such as spanning multiple hosts.

My Interactive Sessions

• View pending and running interactive sessions.

• Status - Queued: Submitted job is in queue to launch.

• Status - Starting: Job is in the process of launching (image download, startup scripts running, etc).

• Status - Running: Job has started and is ready to launch a GUI.

• Job sessions can be terminated in the My Interactive Sessions page.

Terminal

• There are multiple locations from which a user can launch a terminal.

• Exactly as expected, this is a terminal that is launched through the web-browser allowing users to do command line work.