Keynote: A64FX: Power efficient design for HPC and AI

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" summary

Fujitsu’s A64FX is a 7 nm Armv8‑A core with SVE and a 52‑core chip (48 compute cores plus helpers) used in Fugaku, delivering about 2.7 double‑precision TFLOPS peak and measured 16.8 GFLOPS/W to top Green500 (Nov 2019). On‑package HBM gives roughly 1024 GB/s memory bandwidth; co‑design with RIKEN and software tuning yields large application speedups and energy efficiency versus typical x86 nodes. 48 compute cores 1024 GB/s HBM 16.8 GFLOPS/W

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" chapters (19)

1. 0:00Intro
2. 1:44Key Message AB4FX is the new Fujitsu-designed Arm processor
3. 2:34Fujitsu Processor Development Persistent Evolution 60 years
4. 3:03DNA of Fujitsu Processors A64FX inherits DNA from Fujitsu technologies used in mainframes, UNIX and HPC servers
5. 4:08A64FX Specification Architecture Features
6. 5:24Fugaku as the successor
7. 6:20PRIMEHPC FX1000/FX700 specification
8. 7:38Fujitsu and Cray announced a partnershi Cray will ship A64FX processor on CS500 supercomputer architecture
9. 10:02ISA (Collaboration with Arm) • Developed SVE for new generation vector extension
10. 11:59Co-Design with Riken (1/2)
11. 13:43Core microarchitecture design Highly effective performance
12. 14:33Many-Core Architecture design A64FX consists of four CMGs (Core Memory Group)
13. 15:47High Bandwidth Extremely high bandwidth between caches and memory
14. 17:31Design solution to improve power efficienc
15. 18:14Unification of logic and physical/power desig ASIC Design Methodology
16. 19:06High Performance on Real Applications
17. 20:18Software Development RIKEN and Fujitsu are developing software stacks for the supercomputer Fugaku
18. 21:06Software Stacks for Al on Arm Al Software Stack with OSS
19. 21:36Conclusion

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