Lesson 135: Cost models for QPUs
Focus
Document classical post-processing: it often dominates wall-clock and interpretability. Token Cost models for QPUs:135 keeps neighbouring lessons differentiable.
Key ideas
- Thread: Cost models for QPUs · drill v5 · spin
606488. - Habit: pair each job with shot budget, mitigation profile, and a calibration fingerprint you could paste.
- Guardrail: write one line about where classical cost dominated the timeline.
Deep dive notebook
Synthetic drill artefacts
Transpilation checklist
- [ ] basis translation logged for `rz-sx vs native`
- [ ] SWAP count vs manual estimate delta noted
- [ ] layout seed `S-2282`
Rollback triggers: CX depth > THRESH-181 OR queue SLA breach without mitigation flip.
Practice
Practice Draft three pass/fail checks for fidelity or success probability before widening access. — 135 Bump literals mindset by 24.