"Becoming the ultimate spec" is one perspective, another is "the drive toward increasingly bandwidth-starved cores starts to hit limits in some applications".

"Becoming the ultimate spec" is one perspective, another is "the drive toward increasingly bandwidth-starved cores starts to hit limits in some applications". Bandwidth per core has been decreasing due to increasing core counts and slowly improving per socket mem BW, and cores have gotten faster at compute. Anyone know some example bytes per flop machine balance numbers for current and eg 20 year old systems? For older ones one source is https://www.cs.virginia.edu/stream/peecee/Balance.html https://www.cs.virginia.edu/stream/peecee/Balance.html - the "machine balance" for 2003 boxes seems to be between 10 and 17 there. Sadly the "MW/s" unit for machine words is not self-explanatory, what is the word size used.