6 ms·
My non-expert brain immediately jumped to double-pumping + maybe working with their thread director to have tasks using a lot of AVX512 instructions prefer P co
by suresk 2y ago
My non-expert brain immediately jumped to double-pumping + maybe working with their thread director to have tasks using a lot of AVX512 instructions prefer P cores more. It feels like such an obvious solution to a really dumb problem that I assumed there was something simple I was missing.
The register file size makes sense, I didn't think they were that much of the die on those processors but I guess they had to be pretty aggressive to meet power goals?
- jsheard 2y ago> The register file size makes sense, I didn't think they were that much of the die on those processors https://i.imgur.com/WdMPX8S.jpeg https://i.imgur.com/WdMPX8S.jpeg According to this, Zen4s FP register file is almost as big as its FP execution units. It's a pretty sizable chunk of silicon.
- suresk 2y agoI was having trouble finding an E Core die shot, but that helps put it into perspective a bit anyway. Thanks!