A Revolution in Computing: Next-Generation Arithmetic

Speaker: 
Dr. John Gustafson
 
09 Apr 2025
 
6:00 PM
 
South Ballroom, Memorial Union
Co-sponsors: 
  • Computer Science Department
  • Committee on Lectures (funded by Student Government)

For 50 years, "floating-point operations per second" (FLOPS) has been the currency of technical computing performance. The rise of AI and the end of Moore's law have made us realize that IEEE standard floating-point (invented by Intel in 1977) is long overdue for replacement. Dr. John Gustafson will present a new way to represent real numbers on computers that is both mathematically sound and follows engineering design goals. The approach can more than double speed and energy efficiency for everything from Machine Learning to Computer Graphics to High-Performance Computing. This is a watershed, a revolution. And it is well underway.

John Gustafson is an American computer scientist and businessman, renowned for his contributions to high-performance computing (HPC). He is best known for Gustafson's Law, which provides a model for predicting the performance of parallel computing systems.

Gustafson was raised in Des Moines, Iowa, and pursued his passion for science from a young age. He earned his degree in Applied Mathematics from the California Institute of Technology in 1977, followed by an M.S. and Ph.D. from Iowa State University in 1981 and 1982, respectively.

Throughout his career, Gustafson has held several prominent positions, including Chief Technology Officer at Ceranovo, Inc., Chief Graphics Product Architect and Senior Fellow at AMD, and Architect of Intel Labs-SC. He also led the reconstruction of the Atanasoff–Berry computer and invented the unum number format, a variable-precision number system.

Gustafson has received numerous awards for his work, including the inaugural Gordon Bell Prize in 1988 and the International Atanasoff Award in 2006. His contributions have significantly advanced the field of high-performance computing, making him a key figure in the industry.