Zilu Wang, Steve Lantz
Cornell Center for Advanced Computing

10/2026 (original)

Horizon is the flagship of the NSF Leadership-Class Computing Facility (LCCF), provided through The University of Texas at Austin's Texas Advanced Computing Center (TACC). It is intended to be the largest academic supercomputer that is available for open research in the United States. Horizon, like its precursor Vista, is targeted towards scientific computing projects that require highly capable resources for AI and other HPC applications. It accordingly features NVIDIA "superchips" that closely couple CPUs with GPUs.

This topic shows you how to use different Slurm commands to track and control the progress of your batch job, and suggests what to try if something goes wrong.

Objectives

After you complete this topic, you should be able to:

  • Explain how to monitor a job’s progress while it is running
  • Discuss creating job dependencies
  • Explain how to assign job attributes and why doing so may be useful
  • Name key troubleshooting measures when a job does not run as expected
Prerequisites

Horizon is the centerpiece of the NSF Leadership-Class Computing Facility at TACC, so its prospective users are already likely to have a high degree of familiarity and experience with HPC and parallel computing. The pace of this roadmap is meant to be relatively brisk, for that reason.

With that being understood, there are no formal prerequisites for this Virtual Workshop roadmap. A working knowledge of Linux is recommended; if you need more preparation in Linux, try working through the Linux roadmap first.

 
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CVW material development is supported by NSF OAC awards 1854828, 2321040, 2323116 (UT Austin) and 2005506 (Indiana University)