El Capitan, the National Nuclear Security Administration’s first exascale supercomputer, will likely be the world’s most powerful computer when the system is deployed in Fall 2024. But answering some of science’s most challenging questions will go beyond simply having cutting-edge hardware. Discover how the software architecture and storage systems that will drive El Capitan’s performance […]

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NASA supercomputers have helped several Mars landers survive the nerve-racking seven minutes of terror. During this hair-raising interval, a lander enters the Martian atmosphere and needs to automatically execute many crucial actions in precise order....

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A growing number of HPC applications must deliver high performance on CPU and GPU hardware platforms.  One software tool available now and showing tremendous promise for the exascale era is the open-source RAJA Portability Suite. RAJA is part of the Exascale Computing Project (ECP) NNSA software portfolio and is also supported by the ECP Programming Models and Runtimes area.

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In this special guest feature, Rajeev Thakur from Argonne describes why Exascale would be a daunting software challenge even if we had the hardware today. “The scale makes it complicated. And we don’t have a system that large to test things on right now.” Indeed, no such system exists yet, the hardware is changing, and a final vendor or possibly multiple vendors to build the first exascale systems have not yet been selected."

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