UK splurges 45M on AI supercomputer to crack fusion power

"Fusion research has long relied on large-scale simulations to understand the behavior of superheated plasma and the extreme materials in experimental reactors. The idea behind Sunrise is to combine high-performance computing with physics-informed AI models, allowing researchers to run more detailed simulations and develop digital twins of complex fusion systems before attempting costly physical experiments."

"According to the government, the system will deliver up to 6.76 exaFLOPS of AI-accelerated modeling performance. That figure refers to AI workloads rather than the traditional supercomputing benchmarks used in global rankings, but it still represents a significant increase in modeling capability for the UK's fusion research programs."

"Officials say the system will help tackle several key challenges in fusion research, including modeling plasma turbulence, developing reactor materials, and advancing tritium fuel breeding technologies needed for future fusion systems."

The UK government is funding a £45 million AI-driven supercomputer called Sunrise, designed specifically for nuclear fusion research. The system will operate at the UK Atomic Energy Authority's Culham campus starting in June and represents the first major infrastructure component of the UK's planned AI Growth Zone. Sunrise combines high-performance computing with physics-informed AI models to enable detailed simulations and digital twins of fusion systems, reducing the need for costly physical experiments. The 1.4MW system will deliver 6.76 exaFLOPS of AI-accelerated modeling performance using AMD EPYC processors and Instinct GPU accelerators. The supercomputer will address critical fusion challenges including plasma turbulence modeling, reactor material development, and tritium fuel breeding technologies.

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