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Parts/Interconnect/Fujitsu Tofu Interconnect D

Interconnect · Tofu D · 2019

Fujitsu Tofu Interconnect D

6D mesh/torus integrated on the A64FX package: no separate NIC in the Fugaku node.

Why this part

Tofu D moved the network controller onto the A64FX die itself, so Fugaku, like BlueGene before it, has no separate interconnect supplier anywhere in its bill of materials. Ten links per node across six dimensions with three independent ports means a node can send in several directions at once. Fugaku is the last flagship in this dataset where the CPU, the fabric and the integrator are all one company and all one country.

Systems using this part

Systems
7
Rmax underneath
513.9 PFlop/s
Units recorded
-
0 of 7 edges disclose a quantity
System Role Country Units System Rmax Supplied by Rank
JMA PRIMEHPC FX1000
2023-03
Interconnect Japan - 13.37 PFlop/s Fujitsu #51 →
CWA FX1000
2023
Interconnect Taiwan - 11.16 PFlop/s Fujitsu #68 →
Wisteria/BDEC-01
2021-05
Interconnect Japan - 22.12 PFlop/s Fujitsu #99 →
TOKI-SORA
2020-11
Interconnect Japan - 16.59 PFlop/s Fujitsu #19 →
Flow
2020-07
Interconnect Japan - 6.62 PFlop/s Fujitsu #36 →
Fugaku
2020-06
Interconnect Japan - 442.0 PFlop/s Fujitsu #54 →
A64FX Prototype
2019
Interconnect Japan - 2.00 PFlop/s Fujitsu #6 →

“Units recorded” sums only the edges where a public source states a quantity. It is a floor, not a total, and should never be read as installed base.

Related news

  • Fugaku takes the top position with no accelerators · RIKEN Center for Computational Science
    158,976 A64FX nodes, on-package HBM, and the Tofu fabric integrated onto the processor die. The shortest bill of materials of any modern leadership system.

All news →

Further reading