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MiniPIC stores unrotated K vectors in the KV cache, applies RoPE to K tiles inside attention using per-request logical positions, and exposes three user-facing and token-level primitives: block-aligned padding, span separator (SSep), ","title":"MiniPIC: Flexible Position-Independent Caching in <100LOC","url":"https://arxiv.org/abs/2606.13126","vendor":"arxiv_cs_ai"},"summary":"arXiv:2606.13126v1 Announce Type: cross \nAbstract: Retrieval-augmented and agentic workloads repeatedly prefill recurring predictable structured inputs (which we call \"spans\") such as documents and code files. Yet, prefix caching in engines such as vLLM cannot reuse their KV entries unless they share identical prefixes with another request, while Position-Independent Caching (PIC) implementations within production-grade inference servers typically either require substantial server code changes or keep KV state outside the server, incurring host-to-device transfer overhead. 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