Re:Japan Captures TOP500 Crown with Arm-Powered Supercomputer
by sushshshsh on Monday June 22, 2020 @12:05PM
(#23601762)
I am curious to learn a bit more about how supercomputer scores measure proportionally to "real world performance", which is a hard thing to quantify since there are probably hundreds of different application "types" in the "real world".
Combine this with the fact that many applications are limited by network throughput rather than by CPU/SSD/RAM/PCIE, and performance becomes a hard thing to quantify even in terms of "how many ARM cores do i need to buy to make my CPU not be the bottleneck"
There are benchmarks for ARM linux compilation and ARM openjdk performance benchmarks which are a good start, but I don't know how to compare SKUs between those ARMs and the ones found in top500 supercomputers.
Re:Japan Captures TOP500 Crown with Arm-Powered Supercomputer
by mxcrossb on Monday June 22, 2020 @12:20PM
(#23601966)
HPCG is another benchmark on the Top500 site, and it’s more of a real world benchmark. It’s of course not perfect, but maybe that’s more what you’re looking for.
Combine this with the fact that many applications are limited by network throughput rather than by CPU/SSD/RAM/PCIE, and performance becomes a hard thing to quantify even in terms of "how many ARM cores do i need to buy to make my CPU not be the bottleneck"
There are benchmarks for ARM linux compilation and ARM openjdk performance benchmarks which are a good start, but I don't know how to compare SKUs between those ARMs and the ones found in top500 supercomputers.