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Policies Overall General

Policies Specific to HPC/HTC

Overview on Policies

The High Performance Computing (HPC) and High Throughput Computing (HTC) systems are research resources intended for testing and running large codes, parallel-processing codes, visualization and scientific applications. HPC/HTC powers a range of research initiatives led by University of Arizona professors and graduate students across the campus. Scholars in fields from neurobiology and applied physics to economics and sociolinguistics depend on state-of-the-art computational systems to analyze and model massive amounts of data.

The policies listed above govern access, use, and resources on all HPC/HTC systems managed by the UA's University Information Technology Services (UITS).

Arizona Sales Tax Exemption on Research Equipment

Equipment purchased exclusively for research purposes is exempt from Arizona State Sales Tax. See UA FSO statement of Research Equipment Tax Exemption. However, there are exceptions to this exemption that impact central, shared use research facilities. These exceptions include "research in social sciences or psychology"—see AZ ARS 42-5061 subsection B 14.

In order to provide research computing resources to researchers from these exception areas, some of the research computing resources have been purchased with Arizona taxes included. The result is that there are resources available to all campus researchers, with the caveat that researchers in the social sciences, psychology and instructional projects areas are restricted to using resources that are purchased with taxes paid.

Please contact to learn about the resources that are available for social sciences, psychology and instructional purposes.

Access for Research and Limited Access for Instruction

As described in the 'Sales Tax Exemption' section above, most of the HPC and HTC systems are limited to research applications as defined in Section B-14 of ARS Statute 42-5061 by the Arizona Legislature. All users are expected to use these resources accordingly and to use the U-System or other computing systems for non-research purposes.

Intended Audience

The intended audience for these policy statements are current and prospective HPC/HTC users who need an understanding of the accounts and allocation of HPC/HTC resources. This information is provided both as a statement of policy and for educating the user about the use of these systems. It is intended to be the first thing a prospective HPC/HTC user reads.

Policy Review

These interim policies have been developed by the UITS Systems Administration and Research Computing staff. The current HPC-TRAC Advisory Committee will continuously review the policies and provide recommendations for final policies and subsequent updates to the policies until the new Research Computing Steering Committee transitions to take on this role.

Feedback and Questions

All HPC/HTC users can provide input and feedback on policy and allocation issues using the HPC/HTC Discussion list, or private email to

These policies are subject to change. Questions about these policies or their application should be directed to the UITS HPC/HTC team at