4 ms·

With all the stuff running on x86 for the past 30 years + all the perf optimizations in compilers it's not hard to figure. If ARM or Power were faster than x86

by Thaxll 9y ago

With all the stuff running on x86 for the past 30 years + all the perf optimizations in compilers it's not hard to figure. If ARM or Power were faster than x86 we would be using it right now on servers, most of the top500 HPC clusters run on x86_64 ( Intel Xeon ).

Retra 9y ago
I don't know why you would think speed is the only thing that determines what is popular.
shaklee3 9y ago
The new summit supercomputer uses power9. The reason nobody used it before was there was no server processor available.
- gnufx 9y ago
  Yes, but most of the compute for Summit and Sierra is in the GPUs. I haven't seen and indication that even those actually have POWER9 yet.
  - shaklee3 9y ago
    They do, and they run many CPU-only applications that will run on the power. See the talks at gtc.
gnufx 9y ago
For ARM, specifically, look out Simon Macintosh-Smith's preliminary results for the Isambard system.