Author

Jiarui Guo

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Preprint Aug 2026

InSituANN: Revisiting IVF for PCIe-Efficient Billion-Scale Vector Search

Approximate nearest neighbor search (ANNS) over billion-scale vector datasets has become a foundational operator for modern retrieval systems, powering large-scale recommendation, semantic search, and LLM/RAG workloads. Although GPUs offer massive parallelism and high-bandwidth memory for batched vector search, their l...

Yue-Meng Xu, Zongxi Liu, Junyu Long et al. · 0 citations

Preprint Sep 2026

Adaptive Context Parallelism for Production LLM Serving

Vertumnus is presented, an adaptive CP serving system designed for heterogeneous and evolving workloads that reduces mean TTFT and improves token-weighted SLO attainment and introduces a global prefix-cache management policy that coordinates cache placement and replication among workers with the same or different CP de...

Jiarui Guo, Rong-Le Wang, Pei-Jun Huang et al. · 0 citations