Two changes:
1. **Knob units and ranges**
- FLOPs slider: absolute TFLOPS, 1..32 (step 0.5). Was 0.25..8× multiplier.
- HBM BW slider: absolute GB/s, 128..1024 (step 16). Was 0.25..8× multiplier.
Defaults still initialize to the sidebar Hardware panel's base chip.
Caption also shows the implied × multipliers of the base chip.
2. **Knobs now drive every roofline number on the tab.**
Previously FLOPs/BW only affected the AI-sensitivity plot. Now the
scaled machine feeds:
- AI / B* / L* KPI cards
- Regime KPI
- Good-B / Good-L cards + utilization
- Headline plots (step latency + cost/token)
- Regime formulas table (t_com, t_mem_short, t_mem_long values)
- Formula table (C, W, knee substitution)
Left unchanged (intentionally):
- PE memory budget stacks — depend on HBM capacity, not BW/FLOPs.
- AI-sensitivity plot itself — sweeps around the SIDEBAR base
chip so the curves are comparable across knob positions.
Header caption now shows both effective chip (from knobs) and base
chip (from sidebar) side by side.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
mukesh
97e765b58f