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foxhunt/docs/superpowers/specs
jgrusewski 6e49d4a2be docs: H100 epoch optimization spec (37s → <5s) + phase profiling
Spec: 3-phase plan to reduce DQN training epoch from 37s to <5s on H100.
- Phase 1: eliminate 300 CPU roundtrips in PER sampling (GPU Philox RNG)
- Phase 2: increase kernel occupancy (batch_size 512+, cuBLAS profiling)
- Phase 3: pipeline overlap (dual-stream experience/training)

Profiling instrumentation added to training loop (init/experience/training/validation breakdown).

RTX 3050 baseline: training=97.2%, experience=2.3% — PER sampling
with CPU RNG + DtoH sync is the primary bottleneck.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-21 10:23:17 +01:00
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