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UID:submissions.supercomputing.org_SC25_sess533_post303@linklings.com
SUMMARY:WiCAT: Reducing Congestion at Wireless Interfaces in Heterogeneous
  Architectures
DESCRIPTION:Tarun Sharma (IIIT Delhi)\n\nHeterogeneous architectures integ
 rating CPUs, GPUs, and memory controllers generate diverse traffic pattern
 s that stress the on-chip network. Wireless networks-on-chip (WNoCs) provi
 de fast, single-hop communication across distant nodes. However, their eff
 ectiveness is limited by congestion at wireless interfaces (WIs). In this 
 work, we present WiCAT (Wireless Collate and Transfer), a lightweight two-
 stage framework to mitigate WI bottlenecks without modifying CPUs, GPUs, o
 r memory controllers. WiCAT introduces Collate, a WI-level collation schem
 e that reduces redundant requests and corresponding reply traffic, and Tra
 nsfer, a predictive medium access control protocol that dynamically alloca
 tes channel time based on both current buffer occupancy and anticipated tr
 affic. Evaluation on Rodinia benchmarks shows that WiCAT reduces average d
 elay by 17.8%, increases network throughput by 64%, and lowers energy cons
 umption by 13.5%.\n\nTag: Research & ACM SRC Posters\n\nRegistration Categ
 ory: Technical Program Reg Pass\n\nSession Chairs: Kento Sato (RIKEN Cente
 r for Computational Science (R-CCS)); Chris Schlipalius (Pawsey Supercompu
 ting Research Centre; Commonwealth Scientific and Industrial Research Orga
 nisation (CSIRO), Australia); and Anja Gerbes (Georg-August-Universität Gö
 ttingen)\n\n
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