Three-Layer Progressive Optimization
Systematic Limit Approximation for Consumer-GPU GRPO Post-Training
DGBB, ZSBR, and SFOC on one RX 7900 XTX: 795.5 tok/s (97.6% of the wall argmax), +7.8 pp from ZSBR, and 23.2% → 45.6% held-out in 8.5 hours of pure RL.
