First Time Access to the Viking Cluster
Sign-up Form for Access to the Viking Cluster: Viking Cluster Sign-up
This link can also be used for faculty and students to create an account on the Viking Cluster
Option 1: Open On Demand (Preferred for most users)
OnDemand is the easiest way to access CSU’s High Performance Computing resources. With OnDemand, you can upload and download files; create, edit, submit, and monitor jobs; run GUI applications; and connect via SSH, all via a web broswer, with no client software to install and configure.
Step 1: Visit https://openondemand.csuohio.edu/ and login with your CSU credentials
Step 2: Choose what you want to do
- Upload/Download Files
- Create, Edit, and Submit a Job
- Run GUI Software Through the Interactive Apps Tab
To run software click “Interactive Apps” and Open a Viking Desktop. Specify which account, number of hours expected (try to be as close to expected as possible for efficiency!) and th number of nodes you need.
Click “Launch” and you will be put in the virtual queue. Here you can launch the Viking Desktop or share a link to the desktop with other users for collaboration.
Clicking “Launch Viking Desktop” will open a linux window where you can access programs.
Once on the desktop you can open a terminal to launch applications
Option 2: SSH (For Advanced Users)
To setup your directory initially you will need to ssh to yourCSUID#@hpc-stor-01.csuohio.edu. then you can securely transfer files via sftp to your home directory on the Viking Cluster.
Interactive Apps
Multiple interactive applications are available through Open OnDemand.
Select the interactive application that you require and submit a form to get the allocation on Viking Cluster. You may need to change only the number of hours and number of CPU cores as per your need. Remaining fields should be left as it is. Below image demontrates an example for MATLAB interactive application submission form.
uploading / downloading files
You can upload and download files through Open OnDemand using “Files” tab on the home page. Once you select “Home Directory” from the “Files” tab, you will be redirected to the following page.
Use Upload and Download tabs from the page.
shell access from openondemand
You can also access the Shell from Open OnDemand. Please select “Viking Cluster Shell Access” from the “Cluster” tab on the menu. You will be redirected to the Viking Cluster shell.
scheduler on viking cluster
The scheduler on Viking Cluster is “Slurm”. Users can submit, monitor and cancel their jobs. Following are the basic command that might help.
To check the status of the jobs:
[6003563@viking-headnode ~]$ squeue
JOBID PARTITION NAME USER ST TIME NODES NODELIST(REASON)
592421 long sys/dash 6000383 PD 0:00 1 (Resources)
592425 long sys/dash 2375167 R 1:25:28 1 node001
592422 long sys/dash 6000383 R 53:21 1 node005
592423 long sys/dash 6000383 R 53:21 1 node005
592402 long ibamr_au 6003154 R 9:57:37 1 node006
592424 long ibamr_au 6003154 R 5:29:09 1 node002
592383 long ibamr_au 6003154 R 1:02:05 1 node003
592385 long ibamr_au 6003154 R 2:25:05 1 node001
592384 long ibamr_au 6003154 R 1-05:58:38 1 node002
[6003563@viking-headnode ~]$
To check the availability of the nodes:
[6003563@viking-headnode ~]$ sinfo
PARTITION AVAIL TIMELIMIT NODES STATE NODELIST
long up 3-00:00:00 1 drain* node008
long up 3-00:00:00 1 mix node006
long up 3-00:00:00 4 alloc node[001-003,005]
long up 3-00:00:00 2 idle node[004,007]
short* up 3:00:00 1 drain* node008
short* up 3:00:00 1 mix node006
short* up 3:00:00 4 alloc node[001-003,005]
short* up 3:00:00 2 idle node[004,007]
[6003563@viking-headnode ~]$
To submit jobs: sbatch <your job script>
To cancel the job: scancel <your job id>
software modules
Many software are maintained as modules on Viking cluster. Please use the “module avail” command to list the available software modules. Do “module load <module name> to load the module that you intend to use.