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Stacking Up L2 Cache, RIKEN Shows 10X Speedup For A64FX By 2028

April 8, 2022 Timothy Prickett Morgan 0

Let the era of 3D V-Cache in HPC begin.

Inspired by the idea of AMD’s “Milan-X” Epyc 7003 processors with their 3D V-Cache stacked L3 cache memory and then propelled by actual benchmark tests pitting regular Milan CPUs against Milan-X processors using real-world and synthetic HPC applications, researchers at RIKEN Lab in Japan, where the “Fugaku” supercomputer based on Fujitsu’s impressive A64FX vectorized Arm server chip, have fired up a simulation of a hypothetical A64FX follow-on that could, in theory, be built in 2028 and provide nearly an order of magnitude more performance than the current A64FX. …

Breaking Through The HPC Memory Bandwidth Wall With A64FX On Apollo 80 System

August 2, 2021 Josh Gibson Comments Off

The HPC centers that are frustrated by the relatively limited memory bandwidth of X86 CPUs but who also have not gone down the road of building hybrid CPU-GPU systems because of the complexity of the code rewrite and the cost, take heart. …

U.S. Institutions Put Fujitsu A64FX Through the Paces

June 22, 2021 Nicole Hemsoth 1

The Fugaku supercomputer, based on the Arm-driven A64FX processor and custom Fujitsu Tofu-D fabric, has been proven architecturally on a number of HPC and large-scale AI benchmarks and has drawn considerable attention among the supercomputing set. …

A64FX Arm Chip Gets A Big Push From Cray

November 13, 2019 Timothy Prickett Morgan 3

There are many good processors out there, but there are few that are excellent and elegant inasmuch as they are co-designed for specific workloads and then do them very well. …

Fujitsu’s A64FX Arm Chip Waves The HPC Banner High

August 24, 2018 Timothy Prickett Morgan 4

The processing world would be a whole lot less diverse and interesting if it were not for a healthy amount of nationalism. …

HPC

Is This The End Of The Line For NEC Vector Supercomputers?

March 23, 2023 Timothy Prickett Morgan 7

Updated: There is some chatter – some might call it well-informed speculation – going on out there on the Intertubes that Japanese system maker NEC is shutting down its “Aurora” Vector Engine vector processor business. …

HPC

Fujitsu To Fork Arm Server Chip Line To Chase Clouds

March 15, 2023 Timothy Prickett Morgan 2

When it comes to chips, there is a big difference between a kicker and a fork. …

HPC

Japan Buys Supercomputer Just To Predict Torrential Downpours

February 27, 2023 Timothy Prickett Morgan 2

You know that climate change is a problem when a supercomputer to do short-term prediction of the formation of linear rainbands and the torrential downpours that they cause is 3.4X as powerful as the machines that do the day-to-day weather forecasting in a country. …

Compute

Cores, Clocks, And Caches Cranked With Latest NEC Vector Engines

October 10, 2022 Timothy Prickett Morgan 3

Whenever a process shrink is available to chip designers, there are several different levers they can pull to make a more powerful compute engine. …

The Steady Hand Guiding AMD’s “Prudently Expanding” Datacenter Business

October 3, 2022 Timothy Prickett Morgan 10

The old AMD – the one before Lisa Su took over – was often brilliant with its instruction set architecture and CPU designs, but sometimes perplexingly careless with its design choices and chip roadmaps. …