Retired at the end of after seven years of service, Cheyenne was one of the longest-serving supercomputers in NCAR history. At launch, it ranked as the 20th fastest supercomputer on the Top The system was originally slated to be replaced after five years, but then the COVID pandemic struck, severely disrupting supply chains. Cheyenne was called upon to serve an additional two yearsโmaintained and supported by a dedicated staff of about 20 NWSC engineersโuntil the necessary parts were available to build its successor.
Cheyenne nodes had two memory sizes: 3, nodes had 64 GB and had GB. Cheyenne continued to improve on the power efficiency of NCAR's large-scale systems. With a peak power consumption of 1. In its lifetime, Cheyenne delivered over 7 billion core-hours, served over 4, users, and supported nearly 1, NSF awards.
It played a key role in education, supporting more than 80 university courses and training events. Nearly 1, projects were awarded for early-career graduate students and postdocs. Perhaps most tellingly, Cheyenne-powered research generated over 4, peer-review publications, dissertations and theses, and other works.
Researchers used Cheyenne to run increasingly detailed models simulating complex processes and how they might unfold in the future. Main content. Examples of transformative research with Cheyenne include: Extremely high-resolution global simulations of the atmosphere. Researchers highlighted an underappreciated type of rapid intensification of hurricanes to help forecasters better anticipate such weather events. Insight into the impacts of wildfire emissions on air quality and climate.
A separate study shows that increasingly large and intense wildfires in the Pacific Northwest have altered the seasonal pattern of air pollution across North America.
