Fujitsu Picks 64-Bit ARM For Post-K Supercomputer (theregister.co.uk)

An anonymous reader writes: At the International Supercomputing Conference 2016 in Frankfurt, Germany, Fujitsu revealed its Post-K machine will run on ARMv8 architecture. The Post-K machine is supposed to have 100 times more application performance than the K Supercomputer -- which would make it a 1,000 PFLOPS beast -- and is due to go live in 2020. The K machine is the fifth fastest known super in the world, it crunches 10.5 PFLOPS, needs 12MW of power, and is built out of 705,000 Sparc64 VIIIfx cores.InfoWorld has more details.

Comments

Interesting choice

[serviscope_minor]

Sounds like the core is a completely custom ARM job which is more or less the upgraded SPARC core back end with an ARM instruction decoder rather than a SPARC one. And with lots of goodies integrated, specifically a very fast interconnect (TOFU) and a large, fast, wide floating vector point unit.

If they stick enough FPU grunt into the VFP unit, they won't need GPUs or coprocessors in addition.