The WebDocumentation web of Foswiki. New Documentation for ARC https://hpcsupport.utsa.edu/foswiki/bin/view/WebDocumentation Copyright 2026 by contributing authors <updated>2026-08-11T16:04:14Z</updated> https://hpcsupport.utsa.edu/foswiki/bin/view/WebDocumentation/WebHome 2026-08-11T16:04:14Z

: Arc User Guide Arc is the primary High Performance Computing (HPC) system at The University of Texas at San Antonio (UTSA) that can be used for running data in... (last changed by AdminUser)

AdminUser https://hpcsupport.utsa.edu/foswiki/bin/view/WebDocumentation/AboutArcCluster 2026-05-20T20:42:50Z

About Arc Cluster Arc is UTSA's primary high performance (HPC) resource; utilized by researchers, students, faculty and staff from a broad range of disciplines. C... (last changed by ZhiweiWang)

ZhiweiWang https://hpcsupport.utsa.edu/foswiki/bin/view/WebDocumentation/DesigningAndRunningParallelPrograms 2025-10-31T16:03:39Z

Importance of Parallel Programming High Performance Computing (HPC) systems — such as Arc — are clusters composed of many interconnected nodes, each equipped with... (last changed by ZhiweiWang)

ZhiweiWang https://hpcsupport.utsa.edu/foswiki/bin/view/WebDocumentation/LoggingIntoARC 2025-10-09T18:37:19Z

Logging Into Arc from a Linux or Mac Desktop/Laptop You can connect to Arc using your myUTSA ID (abc123) and an SSH client or terminal. Two factor authentication ... (last changed by ZhiweiWang)

ZhiweiWang https://hpcsupport.utsa.edu/foswiki/bin/view/WebDocumentation/MonitoringBatchJobs 2025-10-08T20:39:38Z

Managing submitted batch jobs on Arc involves monitoring, controlling, and troubleshooting your jobs using Slurm commands. Below is a concise guide on how to do ... (last changed by ZhiweiWang)

ZhiweiWang https://hpcsupport.utsa.edu/foswiki/bin/view/WebDocumentation/RunningApplicationsInteractivelyAndSubmittingBatchJobs 2025-10-08T16:17:54Z

Running Applications Interactively Running applications interactively on Arc allows you to test, debug, or run graphical or command line programs directly on a co... (last changed by ZhiweiWang)

ZhiweiWang https://hpcsupport.utsa.edu/foswiki/bin/view/WebDocumentation/MigratingDataToArc 2025-10-07T15:50:25Z

Migrating Data From Arc to the Isilon archival storage The Isilon storage system serves as secondary, archival storage for research data. It is accessible from bo... (last changed by AdminUser)

AdminUser https://hpcsupport.utsa.edu/foswiki/bin/view/WebDocumentation/UsingVectorEnginesOnArc 2024-10-28T21:35:25Z

Using NEC SX Aurora Vector Engines On Arc This guide provides an overview of the NEC SX Aurora TSUBASA Vector Engines (VE) nodes available on the Arc HPC Cluster.... (last changed by AdminUser)

AdminUser https://hpcsupport.utsa.edu/foswiki/bin/view/WebDocumentation/ArcFairUsePolicy 2024-10-28T21:35:24Z

Arc Fair Use Policy Active Jobs Compute nodes are not shared among multiple users. Instead, when a user grabs a compute node, they will be the only user allowed ... (last changed by AdminUser)

AdminUser https://hpcsupport.utsa.edu/foswiki/bin/view/WebDocumentation/CProgrammingWithSelf-DefinedCheckpoint-and-Restart 2024-10-28T21:35:24Z

Checkpoint and restart with DMTCP or tools can create large disk images, and the checkpoint details are controlled by the third party system. To avoid the problem... (last changed by AdminUser)

AdminUser https://hpcsupport.utsa.edu/foswiki/bin/view/WebDocumentation/Checkpoint-and-RestartForR 2024-10-28T21:35:24Z

If your R script is expected to run beyond the 72 hour limit on Arc, we suggest implementing a checkpointing and restart mechanism in your script. This will help ... (last changed by AdminUser)

AdminUser https://hpcsupport.utsa.edu/foswiki/bin/view/WebDocumentation/FAQ 2024-10-28T21:35:24Z

Frequently Asked Questions Who can use Arc? The Arc research cluster is available at no charge to all University of Texas at San Antonio students, faculty and st... (last changed by AdminUser)

AdminUser https://hpcsupport.utsa.edu/foswiki/bin/view/WebDocumentation/FOSWikiVersion-LoggingIntoArcAndSubmittingJobs 2024-10-28T21:35:24Z

Table of Contents LOGGING INTO ARC. 1 ACCESSING COMPUTE NODES ON ARC. 1 RUNNING JOBS INTERACTIVELY WITH THE SRUN COMMAND.. 3 SUBMITTING BATCH JOBS WITH THE SBATCH... (last changed by AdminUser)

AdminUser https://hpcsupport.utsa.edu/foswiki/bin/view/WebDocumentation/PythonDependencyJob 2024-10-28T21:35:24Z

If you have a Python script that is expected to run more than 72 hours on Arc, we suggest you break it into a few smaller tasks, so that each of the tasks runs le... (last changed by AdminUser)

AdminUser https://hpcsupport.utsa.edu/foswiki/bin/view/WebDocumentation/ShamuFairUsePolicy 2024-10-28T21:35:24Z

Arc Fair Use Policy Active Jobs Compute nodes will no longer be shared among multiple users. Instead, when a user grabs a compute node, they will be the only use... (last changed by AdminUser)

AdminUser https://hpcsupport.utsa.edu/foswiki/bin/view/WebDocumentation/SimpleCheckpointAndRestartForPythonUsingAClass 2024-10-28T21:35:24Z

This is a simple example of a program that checkpoints using python and the pickle class. It will run for 15 minutes. The script checks for a file called "countin... (last changed by AdminUser)

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