Draft / Internal Memo
Vectorized Cluster Buffer (VCB) Architecture
An exploration of high-throughput GPU-resident replay buffers designed for partitioned writes and auto-tuning coverage slice optimization.
Abstract Extract
The Vectorized Cluster Buffer (VCB) fundamentally changes how transitions are stored and sampled by introducing identity within the active stack. By utilizing warmup-derived PCA and centroids, the VCB performs real-time clustering of incoming multi-actor streams. This clustered approach enables partitioned reads and writes, mitigating catastrophic forgetting by ensuring that rare but critical states (such as terminal balance failure recovery) are protected from rapid eviction during steady-state training.