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NeCTAr: A Heterogeneous RISC-V SoC for Language Model Inference in Intel 16

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arxiv 2503.14708 v1 pith:A4XOWFZR submitted 2025-03-18 cs.AR

classification cs.AR
keywords heterogeneousinferencelanguagemodelnectarrisc-vsparseaccelerator
verification ladder T0 review T1 audit T2 compute T3 formal
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This paper introduces NeCTAr (Near-Cache Transformer Accelerator), a 16nm heterogeneous multicore RISC-V SoC for sparse and dense machine learning kernels with both near-core and near-memory accelerators. A prototype chip runs at 400MHz at 0.85V and performs matrix-vector multiplications with 109 GOPs/W. The effectiveness of the design is demonstrated by running inference on a sparse language model, ReLU-Llama.

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