Mikio Hondou

Sparc64 VIIIfx: A New-Generation Octocore Processor for Petascale Computing

The Sparc64 VIIIfx eight-core processor, developed for use in petascale computing systems, runs at speeds of up to 2 GHz and achieves a peak performance of 128 gigaflops while consuming as little as 58 watts of power. Sparc64 VIIIfx realizes a six-fold improvement in performance per watt over previous generation Sparc64 processors.

Fine grained power analysis and low-power techniques of a 128GFLOPS/58W SPARC64 ™ VIIIfx processor for peta-scale computing

An 8-core SPARC64™ VIIIfx processor is fabricated in a 45nm CMOS process and achieves a peak performance of 128GFLOPS. Measured results show that the processor consumes only 58W of power when executing a maximum power program. Fine-grained power analysis was used to tune the micro-architecture for low power consumption, and circuit-level low-power techniques were developed. Water cooling and supply voltage adjustment contribute to power reduction at the system level.

Sparc64 XIfx: Fujitsu's Next-Generation Processor for High-Performance Computing

Sparc64 XIfx, the latest high-performance computing processor, includes a 34-core processor and achieves 1.1 teraflops of peak performance. This chip is designed for massive parallel supercomputer systems that realize high performance for a wide range of real applications. As groundwork for exascale supercomputing, it has made major technological changes from the previous Sparc64 processor in the instruction set architecture, microarchitecture, memory modules, and embedded interconnect.