COREY: Entropy-Guided Runtime Chunk Scheduling for Selective Scan Kernels
Mamba selective state space models (SSMs) provide linear-time sequence modeling but remain sensitive to selective-scan chunk scheduling. We present COREY, a \emph{concept-and-feasibility} runtime scheduler that maps fixed-bin activation entropy to chunk size. We evaluate COREY in three tiers: a prototype cost model, real-checkpoint kernel timing, and routed end-to-end ablations on modern GPUs. At the kernel level, a calibrated rule, \(H_{\mathrm{ref}}=\log K\), recovers the locally optimal chunk and matches a one-time static oracle, yielding \(4.41\times\) lower latency than an unoptimized baseline on a consumer GPU and \(3.90\times\)--\(4.04\times\) lower latency on a data-center acceler...
| Authors | Bo Ma, Jinsong Wu, Weiqi Yan |
|---|---|
| Primary category | cs.CV |
| Published | 12 April 2026 |
| Last updated at source | 2 May 2026 |
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