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Parts/Accelerators/NEC SX-Aurora TSUBASA Vector Engine

Accelerators · SX-Aurora · 2018

NEC SX-Aurora TSUBASA Vector Engine

The SX vector architecture repackaged as a PCIe card. NEC is the only vendor that carried a vector line continuously from the Earth Simulator era into the accelerator era.

Why this part

The vector architecture that beat everything in 2002 survives as a PCIe card. The Vector Engine runs the application while an x86 host handles the operating system, which is the inverse of a GPU, where the host runs the program and the device runs kernels. It remains genuinely good at the memory-bound codes it was always good at, and it is a niche product because the market consolidated around one programming model.

Systems using this part

Systems
5
Rmax underneath
51.28 PFlop/s
Units recorded
13,824
3 of 5 edges disclose a quantity
System Role Country Units System Rmax Supplied by Rank
DWD SX-Aurora (2025)
2025
Accelerator Germany - 13.58 PFlop/s NEC #113 →
AOBA-S
2023-08
Accelerator Japan 4,032 17.22 PFlop/s NEC #75 →
Earth Simulator 4
2021-03
Accelerator Japan 5,472 9.99 PFlop/s NEC #39 →
Raijin
2020
Accelerator Japan 4,320 7.89 PFlop/s NEC #33 →
DWD SX-Aurora (2020)
2020
Accelerator Germany - 2.60 PFlop/s NEC #140 →

“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.

Further reading