Fugaku- world’s most powerful supercomputer in 2021

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Supercomputers are used to run high time/space complexity or complicated simulations that involve a large number of variables.

IBM’s Summit, the former world’s most powerful supercomputer which was capable of 150 petaflops(one thousand million million (1015) floating-point operations per second) was taken over by Japanese supercomputer, Fugaku which was developed by RIKEN and Fujitsu is capable of 442 petaflops which is almost 3 time more then Summit.

specification of Fugaku

Manufacturer:Fujitsu
Cores:7,630,848
Memory:5,087,232 GB
Processor:A64FX 48C 2.2GHz
Interconnect:Tofu interconnect D

Performance
Linpack Performance (Rmax)442,010 TFlop/s
Theoretical Peak (Rpeak)537,212 TFlop/s
Nmax21,288,960
HPCG [TFlop/s]16,004.5

Power Consumption

Power:29,899.23 kW (Optimized: 26248.36 kW)
Power Measurement Level:2

And like most supercomputers it is using Linux by Red Hat Enterprise.
Reason is its reliability, stability and security.

More specification and statistics about Fugaku.

Current rankings

Infographic: The World's Top Supercomputers | Statista Source: Statista

Reference with RTX 3090

And just to give some reference of Fugaku with NVIDIA GeForce RTX 3090, Fugaku is 12278X faster then rtx 3090.

Geforce RTX 3090 = 36 Teraflops

Fugaku = 442010 Teraflops

Geforce RTX 3090Fujistu Fugaku
0.00008%99.99992%

Contribution in research

source: FujitsuHPC yt

In the case of Fugaku, the machine’s power is also used to research the COVID-19, more specifically to run simulations of how respiratory droplets move through the air in different settings like offices or train carriages.

Cost of manufacturing

The estimated cost of this super computer is about 1.2bn$. And it took about 9 years to manufacture.

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