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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

Author

Mengdi Wang

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Sep 2026

HydraPIM: A Heterogeneous PIM Architecture for Efficient Attention in Long-Context LLMs

The growing demand for long-context LLM inference has exposed a critical bandwidth–capacity trade-off in memory systems, rendering single-tier PIM architectures ineffective. HBM-PIMs offer high bandwidth but limited capacity, while DIMM-PIMs provide scalability at the cost of lower bandwidth; neither satisfies the thro...

Shixin Zhao, Lian Liu, Xiangwen An et al. · 0 citations
Preprint Aug 2026

Rethinking Unified Memory for NPU-PIM Systems: Dual-View Memory for Dynamic Inference of LLM

PFM (PIM-as-Flexible-Memory), a dual-view memory system that decouples physical data layout from accessor-visible logical views, is presented, demonstrating its effectiveness and broad applicability as a unified memory management solution for NPU-PIM systems.

Shixin Zhao, Lian Liu, Tian Han et al. · 0 citations

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