University allocations

Researchers at U.S. universities have several allocation opportunities, each with distinct eligibility rules. For full eligibility policies, see Eligibility below.

Large Allocation Requests

The CISL HPC Advisory Panel (CHAP) accepts requests for large allocations of NCAR resources every six months, in March and September. Large allocations on Yellowstone are those for more than 200,000 core-hours.

Check the CHAP site for the next submission deadline, for submission instructions, and for information regarding available resources. 

The panel recommends awards on the basis of the computational experimental design, computational effectiveness, and availability of computing resources. More than 80 million Yellowstone system core-hours are allocated during each allocation cycle.

If your work needs to begin immediately and your request meets support requirements, a modest advance of computational resources can be made after submission of the online request. Contact cislhelp@ucar.edu.

Small Allocation Requests

U.S. university researchers who are supported by NSF awards can request a small allocation of up to 200,000 core-hours on Yellowstone or 200,000 core-hours on Janus for each NSF award. Up to 100,000 core-hours are available to graduate students and post-docs; no NSF award or panel review is required.

Small requests typically receive a partial allocation within a few business days. Once the initial allocation is consumed, you can email alloc@ucar.edu to request additional core-hours up to a total allowed. Click here for the request form.

Small Data Access Requests

Faculty and research staff at U.S. universities, U.S. non-profit research organizations, and UCAR affiliates can request read-only access to NCAR-housed data at no charge.

These accounts are granted sufficient access to read data from GLADE and HPSS for up to three years. They may be renewed by sending email to alloc@ucar.edu and stating the additional time period needed. Click here for the request form.

Classroom Allocations

CISL offers opportunities to undergraduate and graduate faculty to use high-performance computers in their college courses. Accounts are provided to individual students and the professor for assignments in numerical simulations, modeling, and studies of recently introduced computing architectures. CISL can provide consulting assistance to the professor or teaching assistant. Click here for the request form.

Eligibility

University use of CISL resources is intended to support research in the atmospheric and related sciences by scientists and graduate students at U.S. universities. The emphasis is on extensive projects that are beyond the scope of university computing centers. There are three primary eligibility criteria.

1. Atmospheric and related sciences

Atmospheric science attempts to understand the total behavior of the earth's fluid envelope on all scales ranging from microscopic processes to global motions. Since this system is bounded by the oceans and solid earth and driven primarily by solar radiation, some areas of ocean science, solid earth science, solar physics, and astrophysics are included.

2. Affiliation

A prime mission of CISL is to support atmospheric science at U.S. universities. Eligibility has been extended to include certain other U.S. educational institutions and non-profit research organizations. Eligible researchers incur no costs for the use of CISL resources. CISL normally does not support research groups in federal agencies.

3. Sponsorship

NSF grants

Researchers can apply for an allocation of NCAR computing time under an associated NSF grant as long as their proposed computing lies appropriately within the scope of the grant. The NSF is kept informed to ensure appropriate use of CISL resources.

Resources for unsponsored graduate students, postdocs, and new faculty

A one-time NCAR computing allocation of up to 100,000 core-hours is available to qualifying graduate students, postdocs, and new faculty. This is to allow access to modeling with a supercomputer in support of their graduate student research and to provide seed grants for postdocs and new faculty in support of work leading to funded and sponsored research.

Requirements for such allocations are:

  • The graduate student, postdoc, or faculty member must work in the atmospheric sciences;
  • Their work does not lie within the scope of an associated NSF grant; and
  • They do not have funding to pay for computer time.

Each request must be accompanied by a letter from the advisor or department head commenting on the importance and quality of the proposed research and affirming that funds are not available to support the work.

Non-NSF funding

Due to high demand for CISL resources at this time, CISL is unable to provide computing support to atmospheric scientists who have funding solely from non-NSF sources. The University of Wyoming allocation opportunity has eligibility criteria that permit funding by sources other than NSF.