Admin: Created page with "= MUSE HPC 2026 Workshop #2 = == HPC Hands-On Labs == === Hands-On Lab #1 - Logging into Open OnDemand === # Login to ELSA's Open OnDemand web portal with your TCNJ login and password #* Open browser and go to https://ondemand.hpc.tcnj.edu/ #* Create your home directory if necessary by following the on-screen instructions Additional help for this tutorial can be found at [https://docs.hpc.tcnj.edu/index.php/HPC_Cluster_Getting_Started#Accessing_the_Cluster_via_Open_OnDem..."

2026-05-28T18:41:25Z

Created page with "= MUSE HPC 2026 Workshop #2 = == HPC Hands-On Labs == === Hands-On Lab #1 - Logging into Open OnDemand === # Login to ELSA's Open OnDemand web portal with your TCNJ login and password #* Open browser and go to https://ondemand.hpc.tcnj.edu/ #* Create your home directory if necessary by following the on-screen instructions Additional help for this tutorial can be found at [https://docs.hpc.tcnj.edu/index.php/HPC_Cluster_Getting_Started#Accessing_the_Cluster_via_Open_OnDem..."

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= MUSE HPC 2026 Workshop #2 =
== HPC Hands-On Labs ==
=== Hands-On Lab #1 - Logging into Open OnDemand ===
# Login to ELSA's Open OnDemand web portal with your TCNJ login and password
#* Open browser and go to https://ondemand.hpc.tcnj.edu/
#* Create your home directory if necessary by following the on-screen instructions
Additional help for this tutorial can be found at [https://docs.hpc.tcnj.edu/index.php/HPC_Cluster_Getting_Started#Accessing_the_Cluster_via_Open_OnDemand Accessing the Cluster via Open OnDemand]

=== Hands-On Lab #2 - Open a Terminal in Open OnDemand ===
# Login to the Open OnDemand port if you're not already logged in
# Using the Open OnDemand menu, go to <code>Clusters</code> and choose <code>_ELSA OpenHPC Cluster Shell Access</code>
# Execute Linux commands at the terminal prompt, e.g. <code>ls</code>
# When you are done with the terminal, type <code>exit</code> at the command prompt and close the browser tab
Additional help for this tutorial can be found at [https://docs.hpc.tcnj.edu/index.php/HPC_Cluster_Getting_Started#Open_OnDemand Accessing the Cluster via SSH using Open OnDemand]

=== Hands-On Lab #3 - Running a Cluster Job ===
# Open a terminal shell again
# Add the ELSA tutorial module by running <code>module add elsa-tutorial</code>
# Run the ELSA tutorial setup script <code>elsa-tutorial-setup.sh</code>
# Change to elsa-tutorial directory <code>cd elsa-tutorial</code>
# Look at the a submit script <code>cat submit.sh</code>
# Look at the other submit scripts in the tutorial directory using either <code>cat</code> or the Open OnDemand file manager
# Edit the <code>submit.sh</code> script to change the email address to your email address and "Your name" in the '''export''' line to your own name. Use either <code>nano</code> or the Open OnDemand edit file option in the file manager
# [Optional] Edit the other submit scripts to change the email address to your email address. Use either <code>nano</code> or the Open OnDemand edit file option in the file manager
# Run the job <code>sbatch submit.sh</code> (this one will finish quickly)
# Review the job.'''jobnumber'''.out file <code>cat job.####.out</code> or use the Open OnDemand file manager to view the contents
# Run the other three jobs
#* <code>sbatch submit-serial.sh</code> (takes about 1.5 minutes to comnplete)
#* <code>sbatch submit-mpi.sh</code> (finishes quickly)
#* <code>sbatch submit-gpu.sh</code> (finishes quickly)
# Review the job output files from these jobs
Additional help for this tutorial can be found at [https://docs.hpc.tcnj.edu/index.php/HPC_Cluster_Job_Scheduler#Submitting_Your_First_HPC_Job Submitting Your First HPC Job]

=== Hands-On Lab #4 - The Final Exam ===
# Download the zip file from [https://owd.tcnj.edu/~ssivy/muse2022/another-pi.zip Another Pi Implementation] to your computer
# Unpack the zip on your local machine
# Make a new folder in your ELSA cluster home directory (e.g. <code>workshop1</code>)
# Upload at least the <code>mpi-pi-numinteg</code> program (optionally upload the other files) to the folder you created above
# Copy the <code>submit-mpi.sh</code> script from the <code>elsa-tutorial</code> folder
# Edit the copy to make any necessary changes
#* Change the command to run from <code>mdart 50000 10000</code> to <code>./mpi-pi-numinteg</code>
#* Use 2 nodes with 16 ntasks
# Change permissions on the <code>mpi-pi-numinteg</code> program while in the Linux shell to make it executable
#* <code>chmod +x mpi-pi-numinteg</code>
# Run the job by submitting it from the Linux shell
# Review the job.''jobnumber''.out file

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