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About ALCF

Exterior of the ALCF user facility
The ALCF is a national scientific user facility located at Argonne National Laboratory.

The Argonne Leadership Computing Facility (ALCF), a U.S. Department of Energy (DOE) Office of Science user facility at Argonne National Laboratory, enables breakthroughs in science and engineering by providing supercomputing and AI resources to the research community.

ALCF computing resources—available to researchers from academia, industry, and government agencies—support large-scale computing projects aimed at solving some of the world’s most complex and challenging scientific problems. Through awards of computing time and support services, the ALCF enables researchers to accelerate the pace of discovery and innovation across a broad range of disciplines.

As a key player in the nation’s efforts to provide the most advanced computing resources for science, the ALCF is helping to chart new directions in scientific computing through a convergence of simulation, data science, and AI methods and capabilities.

Supported by the DOE’s Advanced Scientific Computing Research (ASCR) program, the ALCF and its partner organization, the Oak Ridge Leadership Computing Facility, operate leadership-class supercomputing resources that are orders of magnitude more powerful than the systems typically used for open scientific research.

2025 by the Numbers


2025 Stats

Node-hours of compute time

70.1M

Active projects

483 Data from fiscal year 2025

Publications

274

Facility users

2,103 Data from fiscal year 2025

ALCF Training Events

24

ALCF Training Event Participants

1,716




2025 ALCF Users by Affiliation

Academia

1,208

Government

686

Industry

212




2025 U.S. ALCF Users by State

Map of ALCF users by state
100+ Users   11–100 Users   1–10 Users  
California
Illinois
New York
  Colorado
Conneticut
Florida
Georgia
Indiana
Maryland
Massachusetts
Michigan
Missouri
New Jersey
New Mexico
North Carolina
Ohio
Oregon
Pennsylvania
Tennessee
Texas
Utah
Virginia
Washington
Wisconsin
Wyoming
Alabama
Alaska
Arizona
Arkansas
Delaware
Hawai`i
Iowa
Kansas
Kentucky
Louisiana
Minnesota
Mississippi
North Dakota
Oklahoma
Rhode Island
South Carolina
Vermont
Washington, D.C.
West Virginia




ALCF Staff Numbers

Staff Members

155

Postdoctoral Researchers

26

Students

68