Re:Skymont: Intel's E-Cores reach for the Sky
by mlyle on Tuesday January 21, 2025 @01:30AM
(#42777206)
The software side is limited, somewhat intrinsically (there tend to be a lot of things we want to do in order--- Amdahl's law wins).
And even when you aren't intrinsically limited by that, optimal placement doesn't reduce contention that much (assuming you're not ping-ponging a single cache line every operation or something dumb like that).
But the hardware side, too: we're not getting transistors that quickly anymore, and we don't want anything too much smaller than an Intel E-core. Even if we stack 3D, all that net wafer area is not cheap and isn't cheapening quickly.
And even when you aren't intrinsically limited by that, optimal placement doesn't reduce contention that much (assuming you're not ping-ponging a single cache line every operation or something dumb like that).
But the hardware side, too: we're not getting transistors that quickly anymore, and we don't want anything too much smaller than an Intel E-core. Even if we stack 3D, all that net wafer area is not cheap and isn't cheapening quickly.