3 ms·
I wonder how ARM, so relatively late with AArch64, was able to compel Fujitsu to take the instruction set to the heights of the top-performing supercomputer. I
by chasil 3y ago
I wonder how ARM, so relatively late with AArch64, was able to compel Fujitsu to take the instruction set to the heights of the top-performing supercomputer.
I understand that there are exotic addressing modes involved. I'm not versed enough to understand.
https://en.m.wikipedia.org/wiki/Fugaku_(supercomputer) https://en.m.wikipedia.org/wiki/Fugaku_(supercomputer)
- pezezin 3y agoFujitsu was using their own in-house SPARC designs with custom vector instructions, but they could see that SPARC is dead and has no future. In fact, not that long ago they announced that they will stop sales in 2029 and support 5 years later: https://www.fujitsu.com/global/products/computing/servers/unix/sparc/key-reports/roadmap/index.html https://www.fujitsu.com/global/products/computing/servers/un... So if they wanted to keep pushing their own designs they needed a new architecture, and ARM64 was their best option. The modern SVE extensions were co-designed by ARM and Fujitsu based on their HPC experience.