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takyon [{takyon} {at} {soylentnews.org}] writes:

Fujitsu Fugaku report by Jack Dongarra [dropbox.com] (3.3 MB PDF)

The A64FX CPU is a 64-bit ARM CPU with 48 cores and 2-4 cores assistant cores for the operating system. It uses on-package High Bandwidth Memory 2. There are no GPUs or accelerators used in the the Fugaku supercomputer.

Fugaku [anandtech.com] can reach as high as 537 petaflops of FP64 (boost mode), or 1.07 exaflops of FP32, 2.15 exaflops of FP16, and 4.3 exaOPS of INT8. Theoretical peak memory bandwidth is 163 petabytes per second.

RMAX of #10 system: 18.2 petaflops (November 2019), 21.23 petaflops (June 2020)
RMAX of #100 system: ??? (November 2019), 2.802 petaflops (June 2020)
RMAX of #500 system: ??? (November 2019), 1.23 petaflops (June 2020)

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See also: Arm Aligns Its Server Ambitions To Those Of Its Partners [nextplatform.com]

Original Submission