Hot Chips 2026: Fujitsu’s Monaka CPU

Fujitsu’s A64FX was a pivotal core. For the Arm ecosystem, it introduced SVE. SVE continues to define Arm’s vector execution strategy to this day, with newer extensions like SME adopting a similar vector length agnostic approach. For Fujitsu, A64FX marked a shift away from SPARC and towards the 64-bit Arm ISA (aarch64). Adopting aarch64 let Fujitsu take advantage of a stronger, better supported software ecosystem. Because there’s a lot more Arm software out there than SPARC software, the shift a...