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arxiv: 2604.14626 · v2 · submitted 2026-04-16 · 💻 cs.LG · cs.AI· cs.AR· cs.DC

Recognition: unknown

ELMoE-3D: Leveraging Intrinsic Elasticity of MoE for Hybrid-Bonding-Enabled Self-Speculative Decoding in On-Premises Serving

Yuseon Choi , Jingu Lee , Jungjun Oh , Sunjoo Whang , Byeongcheol Kim , Minsung Kim , Hoi-Jun Yoo , Sangjin Kim
Authors on Pith no claims yet

Pith reviewed 2026-05-10 11:24 UTC · model grok-4.3

classification 💻 cs.LG cs.AIcs.ARcs.DC
keywords mixture of expertsspeculative decodinghybrid bonding3D-stacked hardwareon-premises servingelastic self-speculative decodingbit-sliced architecturememory-bound inference
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The pith

ELMoE-3D jointly scales expert and bit elasticity in MoE models to enable self-speculative decoding that also acts as an expert cache on hybrid-bonding hardware.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

Mixture-of-Experts models remain memory-bound during on-premises serving because batching converts sparse per-token compute into dense memory activation. The paper identifies two intrinsic elasticity axes—expert selection and bit precision—and jointly scales them to construct Elastic Self-Speculative Decoding. This construction lets the speculative draft model double as an expert cache while running on high-bandwidth hybrid-bonding 3D-stacked hardware supported by an LSB-augmented bit-sliced architecture. A sympathetic reader would care because prior methods either leave compute idle or lose effectiveness at low batch sizes, whereas this approach targets consistent gains across the full range of batch sizes.

Core claim

ELMoE-3D is a hybrid-bonding-based hardware-software co-designed framework for Mixture-of-Experts models that unifies cache-based acceleration and speculative decoding. By jointly scaling the expert elasticity axis and the bit elasticity axis, it builds Elastic Self-Speculative Decoding that functions simultaneously as an expert cache and a strongly aligned self-draft model. The LSB-augmented bit-sliced architecture exploits redundancy in bit-slice representations to enable bit-nested execution, all accelerated by the high internal bandwidth of hybrid bonding in 3D stacks.

What carries the argument

Elastic Self-Speculative Decoding (Elastic-SD) formed by jointly scaling the expert elasticity and bit elasticity axes of MoE models to serve simultaneously as expert cache and self-draft model

If this is right

  • Achieves an average 6.6× speedup and 4.4× energy efficiency gain over naive MoE serving on xPU across batch sizes 1-16
  • Delivers 2.2× speedup and 1.4× energy efficiency gain over the best-performing prior accelerator baseline
  • Unifies cache-based acceleration and speculative decoding to provide overall speedup across all batch sizes
  • Maintains model accuracy while eliminating separate overhead for the self-draft model through native bit-nested execution

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • The same joint elasticity scaling could be tested on other sparse-activation architectures if they exhibit comparable expert and bit redundancy.
  • Hardware platforms with high internal bandwidth but without hybrid bonding might still capture part of the bit-sliced acceleration benefit.
  • The approach implies that speculative decoding in MoE need not remain separate from caching mechanisms when structural elasticity is exploited.

Load-bearing premise

The expert and bit elasticity axes of MoE models can be jointly scaled to make the self-draft model function as an expert cache without accuracy loss or extra overhead.

What would settle it

Direct measurement of end-to-end accuracy and total latency when running Elastic-SD versus standard MoE inference on the same 3D-stacked hardware, checking whether accuracy drops or overhead appears.

Figures

Figures reproduced from arXiv: 2604.14626 by Byeongcheol Kim, Hoi-Jun Yoo, Jingu Lee, Jungjun Oh, Minsung Kim, Sangjin Kim, Sunjoo Whang, Yuseon Choi.

Figure 1
Figure 1. Figure 1: Overview of ELMoE-3D. To address this, we architect a hybrid-bonding-based xPU sys￾tem that unifies cache-based AR acceleration at low batch sizes and speculative decoding at high batch sizes within a single framework, as illustrated in [PITH_FULL_IMAGE:figures/full_fig_p002_1.png] view at source ↗
Figure 3
Figure 3. Figure 3: D2W hybrid bonding process and system integra [PITH_FULL_IMAGE:figures/full_fig_p003_3.png] view at source ↗
Figure 4
Figure 4. Figure 4: (a) Arithmetic intensity of MoE serving (DeepSeek [PITH_FULL_IMAGE:figures/full_fig_p003_4.png] view at source ↗
Figure 5
Figure 5. Figure 5: (a) Expert and bit elasticity axes of MoE. (b) Accep [PITH_FULL_IMAGE:figures/full_fig_p004_5.png] view at source ↗
Figure 6
Figure 6. Figure 6: Overall architecture of ELMoE-3D [PITH_FULL_IMAGE:figures/full_fig_p005_6.png] view at source ↗
Figure 7
Figure 7. Figure 7: Elastic-SD execution flow. is precisely why the next subset must be determined in advance. The accumulated one-hot vectors from the current draft phase identify the required experts before verification begins. During verification, expert data is sequentially fetched from external memory, and any piece belonging to the next-draft subset is simultaneously written into HB at the data-mapping granularity descr… view at source ↗
Figure 8
Figure 8. Figure 8: Bit-nested quantization with the proposed LSB aug [PITH_FULL_IMAGE:figures/full_fig_p006_8.png] view at source ↗
Figure 10
Figure 10. Figure 10: (a) On-chip communication volume per expert. (b) [PITH_FULL_IMAGE:figures/full_fig_p007_10.png] view at source ↗
Figure 11
Figure 11. Figure 11: Logic die area breakdown (4GB configuration). [PITH_FULL_IMAGE:figures/full_fig_p007_11.png] view at source ↗
Figure 12
Figure 12. Figure 12: Memory mapping and performance breakdown [PITH_FULL_IMAGE:figures/full_fig_p008_12.png] view at source ↗
Figure 13
Figure 13. Figure 13: Draft and verify latency across batch sizes and HB [PITH_FULL_IMAGE:figures/full_fig_p010_13.png] view at source ↗
Figure 14
Figure 14. Figure 14: Speedup over xPU baseline across models and [PITH_FULL_IMAGE:figures/full_fig_p010_14.png] view at source ↗
Figure 15
Figure 15. Figure 15: Energy comparison normalized to ours (mJ/token) across models and batch sizes (MT-Bench, 8GB). Blue markers [PITH_FULL_IMAGE:figures/full_fig_p011_15.png] view at source ↗
Figure 16
Figure 16. Figure 16: Expert locality analysis (GLM-4.7-Flash, MT [PITH_FULL_IMAGE:figures/full_fig_p011_16.png] view at source ↗
Figure 17
Figure 17. Figure 17: Elasticity analysis (GLM-4.7-Flash, MT-Bench). (a) [PITH_FULL_IMAGE:figures/full_fig_p011_17.png] view at source ↗
read the original abstract

Mixture-of-Experts (MoE) models have become the dominant architecture for large-scale language models, yet on-premises serving remains fundamentally memory-bound as batching turns sparse per-token compute into dense memory activation. Memory-centric architectures (PIM, NMP) improve bandwidth but leave compute underutilized under MoE's low arithmetic intensity at high batch sizes. Speculative decoding (SD) trades idle compute for fewer target invocations, yet verification must load experts even for rejected tokens, severely limiting its benefit in MoE especially at low batch sizes. We propose ELMoE-3D, a hybrid-bonding (HB)-based HW-SW co-designed framework that unifies cache-based acceleration and speculative decoding to offer overall speedup across batch sizes. We identify two intrinsic elasticity axes of MoE-expert and bit-and jointly scale them to construct Elastic Self-Speculative Decoding (Elastic-SD), which serves as both an expert cache and a strongly aligned self-draft model accelerated by high HB bandwidth. Our LSB-augmented bit-sliced architecture exploits inherent redundancy in bit-slice representations to natively support bit-nested execution. On our 3D-stacked hardware, ELMoE-3D achieves an average $6.6\times$ speedup and $4.4\times$ energy efficiency gain over naive MoE serving on xPU across batch sizes 1-16, and delivers $2.2\times$ speedup and $1.4\times$ energy efficiency gain over the best-performing prior accelerator baseline.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

2 major / 2 minor

Summary. The paper presents ELMoE-3D, a hybrid-bonding (HB) hardware-software co-design for on-premises MoE serving. It identifies two intrinsic elasticity axes (expert and bit) and jointly scales them to construct Elastic Self-Speculative Decoding (Elastic-SD). This mechanism is claimed to simultaneously act as an expert cache (via LSB-augmented bit-sliced execution) and a strongly aligned self-draft model for speculative decoding, yielding 6.6× average speedup and 4.4× energy-efficiency gain over naive MoE on xPU, plus 2.2× speedup and 1.4× energy gain over the best prior accelerator baseline, across batch sizes 1–16 with no accuracy loss.

Significance. If the dual-use Elastic-SD construction holds with the reported performance and zero net overhead, the work would meaningfully advance efficient serving of large MoE models on memory-bound 3D-stacked hardware by unifying caching and speculation. The joint exploitation of expert and bit elasticity is a distinctive co-design idea that could generalize to other sparse architectures.

major comments (2)
  1. [Abstract and Elastic-SD construction] Abstract and the Elastic-SD construction section: The headline 6.6× speedup rests on the claim that LSB-augmented bit-sliced execution simultaneously delivers high expert-cache hit rates and preserves the exact logit distribution required for high speculative acceptance rates with no accuracy loss. No quantitative evidence (acceptance-rate curves, cache-hit-rate breakdowns, or logit-distribution comparisons) is supplied to show that these two properties hold jointly at the reported batch sizes 1–16; if either fails, rejected drafts re-incur full expert loads and the net gain collapses.
  2. [Experimental evaluation] Experimental evaluation section: The reported averages (6.6×, 2.2×) are given without per-batch breakdowns, error bars, or explicit descriptions of baseline implementations, accuracy metrics, and 3D-stacked hardware parameters. This prevents verification that the gains are robust, especially at low batch sizes where verification overhead is highest.
minor comments (2)
  1. [Notation and definitions] Notation for the two elasticity axes is introduced in the abstract but not consistently carried through the text; a single table summarizing the scaling rules for expert and bit dimensions would improve clarity.
  2. [Architecture diagram] Figure illustrating the bit-sliced LSB augmentation path would benefit from explicit call-outs showing how the same hardware structures serve both caching and draft-model roles.

Simulated Author's Rebuttal

2 responses · 0 unresolved

We thank the referee for the constructive comments, which highlight important aspects of our Elastic-SD construction and evaluation. We address each major point below and will strengthen the manuscript accordingly.

read point-by-point responses

  1. Referee: [Abstract and Elastic-SD construction] Abstract and the Elastic-SD construction section: The headline 6.6× speedup rests on the claim that LSB-augmented bit-sliced execution simultaneously delivers high expert-cache hit rates and preserves the exact logit distribution required for high speculative acceptance rates with no accuracy loss. No quantitative evidence (acceptance-rate curves, cache-hit-rate breakdowns, or logit-distribution comparisons) is supplied to show that these two properties hold jointly at the reported batch sizes 1–16; if either fails, rejected drafts re-incur full expert loads and the net gain collapses.

    Authors: We agree that explicit quantitative evidence for the joint cache-hit and acceptance-rate behavior is required to substantiate the dual-use claim. The current manuscript presents the overall speedups but does not include the requested acceptance-rate curves, per-batch cache-hit breakdowns, or logit-distribution comparisons. In the revised version we will add these analyses (new figures and tables) drawn from our evaluation runs at batch sizes 1–16, confirming that the LSB-augmented execution maintains both high hit rates and logit fidelity with no accuracy degradation. revision: yes

  2. Referee: [Experimental evaluation] Experimental evaluation section: The reported averages (6.6×, 2.2×) are given without per-batch breakdowns, error bars, or explicit descriptions of baseline implementations, accuracy metrics, and 3D-stacked hardware parameters. This prevents verification that the gains are robust, especially at low batch sizes where verification overhead is highest.

    Authors: We acknowledge the need for greater transparency in the evaluation. The manuscript reports aggregate speedups and energy gains but omits per-batch tables, error bars, detailed baseline configurations, and the precise 3D-stacked hardware parameters used. We will revise the experimental section to include these elements: per-batch speedup and energy results with standard deviations, explicit descriptions of all baselines (including their implementations), the accuracy metrics employed, and the relevant 3D hardware specifications. revision: yes

Circularity Check

0 steps flagged

No circularity: empirical hardware claims with no derivation chain

full rationale

The paper presents a hardware-software co-design for MoE serving on 3D-stacked hardware, reporting measured speedups and energy gains from Elastic-SD. No equations, fitted parameters, self-citations as load-bearing premises, or renamings of known results appear in the abstract or description. The central claims rest on experimental results across batch sizes rather than any prediction that reduces to its own inputs by construction. The identification of elasticity axes is presented as an architectural observation, not a self-referential definition.

Axiom & Free-Parameter Ledger

0 free parameters · 0 axioms · 0 invented entities

Abstract-only review provides no explicit derivations, so no free parameters, axioms, or invented entities can be identified with certainty; the central claim rests on empirical hardware measurements whose supporting assumptions are not detailed.

pith-pipeline@v0.9.0 · 5628 in / 1204 out tokens · 36706 ms · 2026-05-10T11:24:33.200687+00:00 · methodology

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Reference graph

Works this paper leans on

77 extracted references · 50 canonical work pages · 9 internal anchors

  1. [1]

    Apple Inc. 2026. Apple Mac Studio. https://www.apple.com/kr/mac-studio/. Accessed: 2026-04-02

    2026

  2. [2]

    Gonzalez, Matei Zaharia, and Ion Stoica

    Shiyi Cao, Shu Liu, Tyler Griggs, Peter Schafhalter, Xiaoxuan Liu, Ying Sheng, Joseph E. Gonzalez, Matei Zaharia, and Ion Stoica. 2025. MoE-Lightning: High- Throughput MoE Inference on Memory-constrained GPUs. InProceedings of the 30th ACM International Conference on Architectural Support for Programming Languages and Operating Systems, Volume 1(Rotterdam...

    work page doi:10.1145/3669940.3707267 2025

  3. [3]

    Liangkun Chen, Zijian Wen, Tian Wu, Xiaoxi Zhang, and Chuan Wu. 2025. SP- MoE: Speculative Decoding and Prefetching for Accelerating MoE-based Model Inference. arXiv:2510.10302 [cs.DC] https://arxiv.org/abs/2510.10302

    work page arXiv 2025

  4. [4]

    Mark Chen, Jerry Tworek, Heewoo Jun, Qiming Yuan, Henrique Ponde de Oliveira Pinto, Jared Kaplan, Harri Edwards, Yuri Burda, Nicholas Joseph, Greg Brockman, Alex Ray, Raul Puri, Gretchen Krueger, Michael Petrov, Heidy Khlaaf, Girish Sastry, Pamela Mishkin, Brooke Chan, Scott Gray, Nick Ryder, Mikhail Pavlov, Alethea Power, Lukasz Kaiser, Mohammad Bavarian...

    work page internal anchor Pith review Pith/arXiv arXiv 2021

  5. [5]

    Insu Choi, Young-Seo Yoon, and Joon-Sung Yang. 2025. Bit-slice Architecture for DNN Acceleration with Slice-level Sparsity Enhancement and Exploitation. In 2025 IEEE International Symposium on High Performance Computer Architecture (HPCA). 821–835. https://doi.org/10.1109/HPCA61900.2025.00067

    work page doi:10.1109/hpca61900.2025.00067 2025

  6. [6]

    Yuseon Choi, Sangjin Kim, Jungjun Oh, Byeongcheol Kim, and Hoi-Jun Yoo

  7. [7]

    arXiv:2512.12930 [cs.LG] https://arxiv.org/abs/2512.12930

    SeVeDo: A Heterogeneous Transformer Accelerator for Low-Bit Infer- ence via Hierarchical Group Quantization and SVD-Guided Mixed Precision. arXiv:2512.12930 [cs.LG] https://arxiv.org/abs/2512.12930

    work page arXiv

  8. [8]

    Yuseon Choi, Sangjin Kim, Jungjun Oh, Gwangtae Park, Byeongcheol Kim, and Hoi-Jun Yoo. 2026. SliceMoE: Bit-Sliced Expert Caching under Miss-Rate Constraints for Efficient MoE Inference. arXiv:2512.12990 [cs.AR] https: //arxiv.org/abs/2512.12990

    work page arXiv 2026

  9. [9]

    Clark, L., V

    Lawrence T. Clark, Vinay Vashishtha, Lucian Shifren, Aditya Gujja, Saurabh Sinha, Brian Cline, Chandarasekaran Ramamurthy, and Greg Yeric. 2016. ASAP7: A 7-nm finFET predictive process design kit.Microelectronics Journal53 (2016), 105–115. https://doi.org/10.1016/j.mejo.2016.04.006

    work page doi:10.1016/j.mejo.2016.04.006 2016

  10. [10]

    Karl Cobbe, Vineet Kosaraju, Mohammad Bavarian, Mark Chen, Heewoo Jun, Lukasz Kaiser, Matthias Plappert, Jerry Tworek, Jacob Hilton, Reiichiro Nakano, Christopher Hesse, and John Schulman. 2021. Training Verifiers to Solve Math Word Problems. arXiv:2110.14168 [cs.LG] https://arxiv.org/abs/2110.14168

    work page internal anchor Pith review Pith/arXiv arXiv 2021

  11. [11]

    DeepSeek-V2: A Strong, Economical, and Efficient Mixture-of-Experts Language Model

    DeepSeek-AI, Aixin Liu, Bei Feng, Bin Wang, Bingxuan Wang, Bo Liu, Chenggang Zhao, Chengqi Dengr, Chong Ruan, Damai Dai, Daya Guo, Dejian Yang, Deli Chen, Dongjie Ji, Erhang Li, Fangyun Lin, Fuli Luo, Guangbo Hao, Guanting Chen, Guowei Li, H. Zhang, Hanwei Xu, Hao Yang, Haowei Zhang, Honghui Ding, Huajian Xin, Huazuo Gao, Hui Li, Hui Qu, J. L. Cai, Jian L...

    work page internal anchor Pith review arXiv 2024

  12. [12]

    Pingcheng Dong, Yonghao Tan, Xuejiao Liu, Peng Luo, Yu Liu, Di Pang, Songchen Ma, Xijie Huang, Shih-Yang Liu, Dong Zhang, Zhichao Lu, Luhong Liang, Chi- Ying Tsui, Fengbin Tu, Liang Zhao, and Kwang-Ting Cheng. 2026. 31.1 A 14.08- to-135.69Token/s ReRAM-on-Logic Stacked Outlier-Free Large-Language-Model Accelerator with Block-Clustered Weight-Compression a...

    work page doi:10.1109/isscc49663.2026.11409211 2026

  13. [13]

    Mostafa Elhoushi, Akshat Shrivastava, Diana Liskovich, Basil Hosmer, Bram Wasti, Liangzhen Lai, Anas Mahmoud, Bilge Acun, Saurabh Agarwal, Ahmed Roman, Ahmed Aly, Beidi Chen, and Carole-Jean Wu. 2024. LayerSkip: Enabling Early Exit Inference and Self-Speculative Decoding. InProceedings of the 62nd Annual Meeting of the Association for Computational Lingui...

    2024

  14. [14]

    Christine Fricker, Philippe Robert, and James Roberts. 2012. A versatile and accurate approximation for LRU cache performance. arXiv:1202.3974 [cs.NI] https://arxiv.org/abs/1202.3974

    work page arXiv 2012

  15. [15]

    Evangelos Georganas, Dhiraj Kalamkar, Alexander Kozlov, and Alexander Hei- necke. 2025. ML-SpecQD: Multi-Level Speculative Decoding with Quantized Drafts. arXiv:2503.13565 [cs.CL] https://arxiv.org/abs/2503.13565

    work page arXiv 2025

  16. [16]

    Raghavv Goel, Mukul Gagrani, Wonseok Jeon, Junyoung Park, Mingu Lee, and Christopher Lott. 2024. Direct Alignment of Draft Model for Speculative Decod- ing with Chat-Fine-tuned LLMs. InICLR 2024 Workshop on Mathematical and Empirical Understanding of Foundation Models. https://openreview.net/forum? id=126PpV2CoO

    2024

  17. [17]

    Sangwoo Ha, Jingu Lee, Youngjin Moon, Sunjoo Whang, Wooyoung Jo, Gwangtae Park, Sangjin Kim, Soyeon Um, Junha Ryu, Yurim Jo, and Hoi-Jun Yoo. 2026. SMoLPU: 122.1µJ/Token Sparse MoE-Based Speculative Decoding Language Processing Unit with Adaptive-Offload NPU-CIM Core. In2026 IEEE International Solid-State Circuits Conference (ISSCC), Vol. 69. 312–314. htt...

    work page arXiv 2026

  18. [18]

    Sanghyeok Han, Byungkuk Yoon, Gyeonghwan Park, Choungki Song, Dongkyun Kim, and Jae-Joon Kim. 2025. Near-Memory LLM Inference Processor based on 3D DRAM-to-Logic Hybrid Bonding. InProceedings of the 62nd Annual ACM/IEEE Design Automation Conference(San Francisco, California, United States)(DAC ’25). IEEE Press, Article 205, 7 pages. https://doi.org/10.110...

    work page doi:10.1109/dac63849.2025 2025

  19. [19]

    Siyuan He, Zhantong Zhu, Yandong He, and Tianyu Jia. 2025. LP-Spec: Leveraging LPDDR PIM for Efficient LLM Mobile Speculative Inference with Architecture- Dataflow Co-Optimization. , 9 pages. https://doi.org/10.1109/ICCAD66269.2025. 11240889

    work page doi:10.1109/iccad66269.2025 2025

  20. [20]

    Guseul Heo, Sangyeop Lee, Jaehong Cho, Hyunmin Choi, Sanghyeon Lee, Hyungkyu Ham, Gwangsun Kim, Divya Mahajan, and Jongse Park. 2024. Ne- upims: Npu-pim heterogeneous acceleration for batched llm inferencing. In Proceedings of the 29th ACM International Conference on Architectural Support for Programming Languages and Operating Systems, Volume 3. 722–737

    2024

  21. [21]

    Hanbo Huang, Yihan Li, Bowen Jiang, Lin Liu, Bo Jiang, Ruoyu Sun, Zhuotao Liu, and Shiyu Liang. 2025. On-Premises LLM Deployment Demands a Middle Path: Preserving Privacy Without Sacrificing Model Confidentiality. InICLR 2025 Workshop on Building Trust in Language Models and Applications. https: //openreview.net/forum?id=u61yT9ZkEZ

    2025

  22. [22]

    Zongle Huang, Lei Zhu, ZongYuan Zhan, Ting Hu, Weikai Mao, Xianzhi Yu, Yongpan Liu, and Tianyu Zhang. 2025. MoESD: Unveil Speculative Decoding’s Potential for Accelerating Sparse MoE. InThe Thirty-ninth Annual Conference on Neural Information Processing Systems. https://openreview.net/forum?id= FAeU7516MR

    2025

  23. [23]

    Raymond Hung, Gilbert See, Ying Wang, Chang Bum Yong, Ke Zheng, Yauloong Chang, Avi Shantaram, Ruiping Wang, Arvind Sundarrajan, Jonathan Abdilla, Nithyananda Hegde, Stefan Schmid, Djuro Bikaljevic, and Manfred Glantschnig

  24. [24]

    In2024 IEEE 74th Electronic Components and Technology Conference (ECTC)

    Enabling Die-to-Wafer Hybrid Bonding for the Next Generation Advanced 3D Packaging. In2024 IEEE 74th Electronic Components and Technology Conference (ECTC). 778–783. https://doi.org/10.1109/ECTC51529.2024.00127

    work page doi:10.1109/ectc51529.2024.00127 2024

  25. [25]

    Ranggi Hwang, Jianyu Wei, Shijie Cao, Changho Hwang, Xiaohu Tang, Ting Cao, and Mao Yang. 2025. Pre-Gated MoE: An Algorithm-System Co-Design for Fast and Scalable Mixture-of-Expert Inference. InProceedings of the 51st Annual International Symposium on Computer Architecture(Buenos Aires, Argentina) (ISCA ’24). IEEE Press, 1018–1031. https://doi.org/10.1109...

    work page doi:10.1109/isca59077.2024.00078 2025

  26. [26]

    Dongseok Im, Gwangtae Park, Zhiyong Li, Junha Ryu, and Hoi-Jun Yoo. 2023. Sibia: Signed Bit-slice Architecture for Dense DNN Acceleration with Slice-level Sparsity Exploitation. In2023 IEEE International Symposium on High-Performance Computer Architecture (HPCA). 69–80. https://doi.org/10.1109/HPCA56546.2023. 10071031

    work page doi:10.1109/hpca56546.2023 2023

  27. [27]

    JEDEC Solid State Technology Association. 2019. JESD209-5: Low Power Dou- ble Data Rate 5 (LPDDR5). https://www.jedec.org/standards-documents/docs/ jesd209-5. Standard specification

    2019

  28. [28]

    Dongyun Kam, Myeongji Yun, Sunwoo Yoo, Seungwoo Hong, Zhengya Zhang, and Youngjoo Lee. 2025. Panacea: Novel DNN Accelerator using Accuracy- Preserving Asymmetric Quantization and Energy-Saving Bit-Slice Sparsity . In 2025 IEEE International Symposium on High Performance Computer Architecture (HPCA). IEEE Computer Society, Los Alamitos, CA, USA, 701–715. h...

    work page doi:10.1109/hpca61900.2025.00059 2025

  29. [29]

    Scaling Laws for Neural Language Models

    Jared Kaplan, Sam McCandlish, Tom Henighan, Tom B. Brown, Benjamin Chess, Rewon Child, Scott Gray, Alec Radford, Jeffrey Wu, and Dario Amodei. 2020. Scaling Laws for Neural Language Models. arXiv:2001.08361 [cs.LG] https: //arxiv.org/abs/2001.08361

    work page internal anchor Pith review Pith/arXiv arXiv 2020

  30. [30]

    Jinhee Kim, Seoyeon Yoon, Taeho Lee, Joo Chan Lee, Kang Eun Jeon, and Jong Hwan Ko. 2025. TruncQuant: Truncation-Ready Quantization for DNNs with Flexible Weight Bit Precision. arXiv:2506.11431 [cs.LG] https://arxiv.org/ abs/2506.11431

    work page arXiv 2025

  31. [31]

    Jin Hyun Kim, Yuhwan Ro, Jinin So, Sukhan Lee, Shin-haeng Kang, YeonGon Cho, Hyeonsu Kim, Byeongho Kim, Kyungsoo Kim, Sangsoo Park, Jin-Seong Kim, Sanghoon Cha, Won-Jo Lee, Jin Jung, Jong-Geon Lee, Jieun Lee, JoonHo Song, Seungwon Lee, Jeonghyeon Cho, Jaehoon Yu, and Kyomin Sohn. 2023. Samsung PIM/PNM for Transfmer Based AI : Energy Efficiency on PIM/PNM ...

    work page arXiv 2023

  32. [32]

    Sangjin Kim, Jungjun Oh, Byeongcheol Kim, Yuseon Choi, Gwangtae Park, and Hoi-Jun Yoo. 2026. 31.2 Revolver: Low-Bit GenAI Accelerator for Distilled-Model and CoT with Phase-Aware-Quantization and Rotation-Based Integer-Scaled Group Quantization. In2026 IEEE International Solid-State Circuits Conference (ISSCC), Vol. 69. 534–536. https://doi.org/10.1109/IS...

    work page doi:10.1109/isscc49663.2026.11409015 2026

  33. [33]

    Maximilian Kleinegger, Elvir Crnčević, and Dan Alistarh. 2026. Mat- GPTQ: Accurate and Efficient Post-Training Matryoshka Quantization. arXiv:2602.03537 [cs.LG] https://arxiv.org/abs/2602.03537

    work page arXiv 2026

  34. [34]

    Knag, Gregory K

    Phil C. Knag, Gregory K. Chen, Shanshan Xie, Satish Yada, Wei Wu, Yu-Shiang Lin, Alexander Kashirin, Xiemei Meng, Russell Criss, Ana Sonia Leon, Carlos Tokunaga, Ram K. Krishnamurthy, and James W. Tschanz. 2026. 10.6 A Hybrid- Bonded 12.1Tops/mm2 5 6-Core DNN Processor with 2.5Tb/s/mm2 3D Network on Chip. In2026 IEEE International Solid-State Circuits Con...

    work page doi:10.1109/isscc49663.2026.11409347 2026

  35. [35]

    Juhyoung Lee, Dongjoo Shin, Jinsu Lee, Jinmook Lee, Sanghoon Kang, and Hoi- Jun Yoo. 2019. A Full HD 60 fps CNN Super Resolution Processor with Selective Caching based Layer Fusion for Mobile Devices. In2019 Symposium on VLSI Circuits. C302–C303. https://doi.org/10.23919/VLSIC.2019.8778104

    work page doi:10.23919/vlsic.2019.8778104 2019

  36. [36]

    Yaniv Leviathan, Matan Kalman, and Yossi Matias. 2023. Fast inference from transformers via speculative decoding. InProceedings of the 40th International Conference on Machine Learning(Honolulu, Hawaii, USA)(ICML’23). JMLR.org, Article 795, 13 pages

    2023

  37. [37]

    Cong Li, Yihan Yin, Xintong Wu, Jingchen Zhu, Zhutianya Gao, Dimin Niu, Qiang Wu, Xin Si, Yuan Xie, Chen Zhang, and Guangyu Sun. 2025. H2-LLM: Hardware- Dataflow Co-Exploration for Heterogeneous Hybrid-Bonding-based Low-Batch LLM Inference. InProceedings of the 52nd Annual International Symposium on Computer Architecture (ISCA ’25). Association for Comput...

    work page doi:10.1145/3695053.3731008 2025

  38. [38]

    Yuhui Li, Fangyun Wei, Chao Zhang, and Hongyang Zhang. 2024. EAGLE-2: Faster Inference of Language Models with Dynamic Draft Trees. InProceedings of the 2024 Conference on Empirical Methods in Natural Language Processing, Yaser Al-Onaizan, Mohit Bansal, and Yun-Nung Chen (Eds.). Association for Computational Linguistics, Miami, Florida, USA, 7421–7432. ht...

    2024

  39. [39]

    Yuhui Li, Fangyun Wei, Chao Zhang, and Hongyang Zhang. 2024. EAGLE: speculative sampling requires rethinking feature uncertainty. InProceedings of the 41st International Conference on Machine Learning(Vienna, Austria)(ICML’24). JMLR.org, Article 1162, 14 pages

    2024

  40. [40]

    Yuhui Li, Fangyun Wei, Chao Zhang, and Hongyang Zhang. 2025. EAGLE-3: Scaling up Inference Acceleration of Large Language Models via Training-Time Test. arXiv:2503.01840 [cs.CL] https://arxiv.org/abs/2503.01840

    work page internal anchor Pith review arXiv 2025

  41. [41]

    Jiahao Liu, Qifan Wang, Jingang Wang, and Xunliang Cai. 2024. Speculative Decoding via Early-exiting for Faster LLM Inference with Thompson Sampling Control Mechanism. InFindings of the Association for Computational Linguistics: ACL 2024, Lun-Wei Ku, Andre Martins, and Vivek Srikumar (Eds.). Association for Computational Linguistics, Bangkok, Thailand, 30...

    work page doi:10.18653/v1/2024.findings-acl.179 2024

  42. [42]

    Nisa Bostancı, Ataberk Olgun, A

    Haocong Luo, Yahya Can Tuğrul, F. Nisa Bostancı, Ataberk Olgun, A. Giray Yağlıkçı, and Onur Mutlu. 2024. Ramulator 2.0: A Modern, Modular, and Extensi- ble DRAM Simulator.IEEE Computer Architecture Letters23, 1 (2024), 112–116. https://doi.org/10.1109/LCA.2023.3333759

    work page doi:10.1109/lca.2023.3333759 2024

  43. [43]

    Bradley McDanel, Steven Li, Sruthikesh Surineni, and Harshit Khaitan

  44. [44]

    arXiv preprint arXiv:2602.16052 , year=

    MoE-Spec: Expert Budgeting for Efficient Speculative Decoding. arXiv:2602.16052 [cs.LG] https://arxiv.org/abs/2602.16052

    work page arXiv

  45. [45]

    Micron Technology, Inc. 2023. LPDDR5/LPDDR5X SDRAM Datasheet. https: //www.micron.com/. Technical documentation

    2023

  46. [46]

    Seungjae Moon, Jung-Hoon Kim, Junsoo Kim, Seongmin Hong, Junseo Cha, Minsu Kim, Sukbin Lim, Gyubin Choi, Dongjin Seo, Jongho Kim, Hunjong Lee, Hyunjun Park, Ryeowook Ko, Soongyu Choi, Jongse Park, Jinwon Lee, and Joo- Young Kim. 2024. A Latency Processing Unit: A Latency-Optimized and Highly Scalable Processor for Large Language Model Inference.IEEE Micro...

    work page doi:10.1109/mm.2024.3420728 2024

  47. [47]

    Pranav Ajit Nair, Puranjay Datta, Jeff Dean, Prateek Jain, and Aditya Kusupati

  48. [48]

    InForty-second International Conference on Machine Learning

    Matryoshka Quantization. InForty-second International Conference on Machine Learning. https://openreview.net/forum?id=phVWcUSGYP

  49. [49]

    Dimin Niu, Shuangchen Li, Yuhao Wang, Wei Han, Zhe Zhang, Yijin Guan, Tianchan Guan, Fei Sun, Fei Xue, Lide Duan, Yuanwei Fang, Hongzhong Zheng, Xiping Jiang, Song Wang, Fengguo Zuo, Yubing Wang, Bing Yu, Qiwei Ren, and Yuan Xie. 2022. 184QPS/W 64Mb/mm23D Logic-to-DRAM Hybrid Bonding with Process-Near-Memory Engine for Recommendation System. In2022 IEEE I...

    work page doi:10.1109/isscc42614.2022.9731694 2022

  50. [50]

    NVIDIA. 2026. NVIDIA DGX Spark. https://www.nvidia.com/ko-kr/products/ workstations/dgx-spark/. Accessed: 2026-04-02

    2026

  51. [51]

    OpenAI, :, Sandhini Agarwal, Lama Ahmad, Jason Ai, Sam Altman, Andy Apple- baum, Edwin Arbus, Rahul K. Arora, Yu Bai, Bowen Baker, Haiming Bao, Boaz Barak, Ally Bennett, Tyler Bertao, Nivedita Brett, Eugene Brevdo, Greg Brockman, Sebastien Bubeck, Che Chang, Kai Chen, Mark Chen, Enoch Cheung, Aidan Clark, Dan Cook, Marat Dukhan, Casey Dvorak, Kevin Fives,...

    work page internal anchor Pith review arXiv 2025

  52. [52]

    Yue Pan, Zihan Xia, Po-Kai Hsu, Lanxiang Hu, Hyungyo Kim, Janak Sharda, Minx- uan Zhou, Nam Sung Kim, Shimeng Yu, Tajana Rosing, and Mingu Kang. 2025. Stratum: System-Hardware Co-Design with Tiered Monolithic 3D-Stackable DRAM for Efficient MoE Serving. InProceedings of the 58th IEEE/ACM Interna- tional Symposium on Microarchitecture (MICRO ’25). Associat...

    work page doi:10.1145/3725843.3756043 2025

  53. [53]

    Gunho Park, Jeongin Bae, Beomseok Kwon, Byeongwook Kim, Se Jung Kwon, and Dongsoo Lee. 2026. AnyBCQ: Hardware Efficient Flexible Binary-Coded Quantization for Multi-Precision LLMs. InThe Fourteenth International Conference on Learning Representations. https://openreview.net/forum?id=XPIEkFdEDi

    2026

  54. [54]

    Jaehyun Park, Jaewan Choi, Kwanhee Kyung, Michael Jaemin Kim, Yongsuk Kwon, Nam Sung Kim, and Jung Ho Ahn. 2024. AttAcc! Unleashing the Power of PIM for Batched Transformer-based Generative Model Inference. InProceedings of the 29th ACM International Conference on Architectural Support for Programming Languages and Operating Systems, Volume 2(La Jolla, CA...

    work page doi:10.1145/3620665.3640422 2024

  55. [55]

    Yeonhong Park, Jake Hyun, SangLyul Cho, Bonggeun Sim, and Jae W. Lee. 2024. Any-precision LLM: low-cost deployment of multiple, different-sized LLMs. In Proceedings of the 41st International Conference on Machine Learning(Vienna, Austria)(ICML’24). JMLR.org, Article 1607, 20 pages

    2024

  56. [56]

    Qwen, :, An Yang, Baosong Yang, Beichen Zhang, Binyuan Hui, Bo Zheng, Bowen Yu, Chengyuan Li, Dayiheng Liu, Fei Huang, Haoran Wei, Huan Lin, Jian Yang, Jianhong Tu, Jianwei Zhang, Jianxin Yang, Jiaxi Yang, Jingren Zhou, Junyang Lin, Kai Dang, Keming Lu, Keqin Bao, Kexin Yang, Le Yu, Mei Li, Mingfeng Xue, Pei Zhang, Qin Zhu, Rui Men, Runji Lin, Tianhao Li,...

    work page internal anchor Pith review Pith/arXiv arXiv 2025

  57. [57]

    Semyon Savkin, Eitan Porat, Or Ordentlich, and Yury Polyanskiy. 2025. NestQuant: nested lattice quantization for matrix products and LLMs. InForty- second International Conference on Machine Learning. https://openreview.net/ forum?id=4OWGON33HE

    2025

  58. [58]

    Anish Saxena, Po-An Tsai, Hritvik Taneja, Aamer Jaleel, and Moinuddin Qureshi. 2025. Utility-Driven Speculative Decoding for Mixture-of-Experts. arXiv:2506.20675 [cs.DC] https://arxiv.org/abs/2506.20675

    work page arXiv 2025

  59. [59]

    Hardik Sharma, Jongse Park, Naveen Suda, Liangzhen Lai, Benson Chau, Joon Kyung Kim, Vikas Chandra, and Hadi Esmaeilzadeh. 2018. Bit fusion: bit-level dynamically composable architecture for accelerating deep neural net- works. InProceedings of the 45th Annual International Symposium on Com- puter Architecture(Los Angeles, California)(ISCA ’18). IEEE Pres...

    work page doi:10.1109/isca.2018.00069 2018

  60. [60]

    Le, Geoffrey E

    Noam Shazeer, Azalia Mirhoseini, Krzysztof Maziarz, Andy Davis, Quoc V. Le, Geoffrey E. Hinton, and Jeff Dean. 2017. Outrageously Large Neural Networks: The Sparsely-Gated Mixture-of-Experts Layer. In5th International Conference on Learning Representations, ICLR 2017, Toulon, France, April 24-26, 2017, Con- ference Track Proceedings. OpenReview.net. https...

    2017

  61. [61]

    Whatmough, and Babak Ehteshami Bejnordi

    Andrii Skliar, Ties van Rozendaal, Romain Lepert, Todor Boinovski, Mart Van Baalen, Markus Nagel, Paul N. Whatmough, and Babak Ehteshami Bejnordi. 2025. Mixture of Cache-Conditional Experts for Efficient Mobile Device Inference. Transactions on Machine Learning Research(2025). https://openreview.net/forum? id=ul4W26KEKz

    2025

  62. [62]

    Rohan Taori, Ishaan Gulrajani, Tianyi Zhang, Yann Dubois, and Xuechen Li. 2023. Alpaca: A Strong, Replicable Instruction-Following Model. https://crfm.stanford. edu/2023/03/13/alpaca.html. Stanford Center for Research on Foundation Models (CRFM)

    2023

  63. [63]

    5 Team, Aohan Zeng, Xin Lv, Qinkai Zheng, Zhenyu Hou, Bin Chen, Chengxing Xie, Cunxiang Wang, Da Yin, Hao Zeng, Jiajie Zhang, Kedong Wang, Lucen Zhong, Mingdao Liu, Rui Lu, Shulin Cao, Xiaohan Zhang, Xuancheng Huang, Yao Wei, Yean Cheng, Yifan An, Yilin Niu, Yuanhao Wen, Yushi Bai, Zhengxiao Du, Zihan Wang, Zilin Zhu, Bohan Zhang, Bosi Wen, Bowen Wu, Bowe...

    work page internal anchor Pith review arXiv 2025

  64. [64]

    Abdelfattah, and Kai-Chiang Wu

    Pei-Shuo Wang, Jian-Jia Chen, Chun-Che Yang, Chi-Chih Chang, Ning-Chi Huang, Mohamed S. Abdelfattah, and Kai-Chiang Wu. 2025. Speculate Deep and Accurate: Lossless and Training-Free Acceleration for Offloaded LLMs via Substitute Speculative Decoding. InThe Thirty-ninth Annual Conference on Neural Information Processing Systems. https://openreview.net/foru...

    2025

  65. [65]

    Wenfeng Wang, Jiacheng Liu, Xiaofeng Hou, Xinfeng Xia, Peng Tang, Mingxuan Zhang, Chao Li, and Minyi Guo. 2025. MoE-SpeQ: Speculative Quantized De- coding with Proactive Expert Prefetching and Offloading for Mixture-of-Experts. arXiv:2511.14102 [cs.LG] https://arxiv.org/abs/2511.14102

    work page arXiv 2025

  66. [66]

    Yun Wang, Lingyun Yang, Senhao Yu, Yixiao Wang, Ruixing Li, Zhixiang Wei, James Yen, and Zhengwei Qi. 2025. BuddyMoE: Exploiting Expert Re- dundancy to Accelerate Memory-Constrained Mixture-of-Experts Inference. arXiv:2511.10054 [cs.LG] https://arxiv.org/abs/2511.10054

    work page arXiv 2025

  67. [67]

    C-Transformer: A 2.6-18.1μ J/token Homogeneous DNN- Transformer/Spiking-Transformer Processor with Big-Little Network and Implicit Weight Generation for Large Language Models,

    Tony F. Wu, Huichu Liu, H. Ekin Sumbul, Lita Yang, Dipti Baheti, Jeremy Coriell, William Koven, Anu Krishnan, Mohit Mittal, Matheus Trevisan Moreira, Max Waugaman, Laurent Ye, and Edith Beigné. 2024. 11.2 A 3D Integrated Prototype System-on-Chip for Augmented Reality Applications Using Face-to-Face Wafer Bonded 7nm Logic at < 2 𝜇mPitch with up to 40% Ener...

    work page doi:10.1109/isscc49657.2024.10454529 2024

  68. [68]

    John Wuu, Rahul Agarwal, Michael Ciraula, Carl Dietz, Brett Johnson, Dave Johnson, Russell Schreiber, Raja Swaminathan, Will Walker, and Samuel Naffziger

  69. [69]

    In: 2022 IEEE International Solid-State Circuits Conference (ISSCC)

    3D V-Cache: the Implementation of a Hybrid-Bonded 64MB Stacked Cache for a 7nm x86-64 CPU. In2022 IEEE International Solid-State Circuits Conference (ISSCC), Vol. 65. 428–429. https://doi.org/10.1109/ISSCC42614.2022.9731565

    work page doi:10.1109/isscc42614.2022.9731565 2022

  70. [70]

    Leyang Xue, Yao Fu, Zhan Lu, Luo Mai, and Mahesh Marina. 2025. MoE-Infinity: Efficient MoE Inference on Personal Machines with Sparsity-Aware Expert Cache. arXiv:2401.14361 [cs.LG] https://arxiv.org/abs/2401.14361

    work page arXiv 2025

  71. [71]

    An Yang, Anfeng Li, Baosong Yang, Beichen Zhang, Binyuan Hui, Bo Zheng, Bowen Yu, Chang Gao, Chengen Huang, Chenxu Lv, Chujie Zheng, Dayiheng Liu, Fan Zhou, Fei Huang, Feng Hu, Hao Ge, Haoran Wei, Huan Lin, Jialong Tang, Jian Yang, Jianhong Tu, Jianwei Zhang, Jianxin Yang, Jiaxi Yang, Jing Zhou, Jingren Zhou, Junyang Lin, Kai Dang, Keqin Bao, Kexin Yang, ...

    work page internal anchor Pith review Pith/arXiv arXiv 2025

  72. [72]

    Lita Yang, Kavya Sreedhar, Huichu Liu, and Edith Beigne. 2024. Enabling On- Device Large Language Models with 3D-Stacked Memory. InNeurIPS 2024 Work- shop Machine Learning with new Compute Paradigms. https://openreview.net/ forum?id=P4LViaB8g0

    2024

  73. [73]

    Yichao Yuan, Lin Ma, and Nishil Talati. 2025. MoE-Lens: Towards the Hard- ware Limit of High-Throughput MoE LLM Serving Under Resource Constraints. arXiv:2504.09345 [cs.DC] https://arxiv.org/abs/2504.09345

    work page arXiv 2025

  74. [74]

    Zhiheng Yue, Huizheng Wang, Jiahao Fang, Jinyi Deng, Guangyang Lu, Fengbin Tu, Ruiqi Guo, Yuxuan Li, Yubin Qin, Yang Wang, Chao Li, Huiming Han, Shaojun Wei, Yang Hu, and Shouyi Yin. 2025. Exploiting Similarity Opportunities of Emerging Vision AI Models on Hybrid Bonding Architecture. InProceedings of the 51st Annual International Symposium on Computer Ar...

    work page doi:10.1109/isca59077 2025

  75. [75]

    Sungmin Yun, Kwanhee Kyung, Juhwan Cho, Jaewan Choi, Jongmin Kim, Byeongho Kim, Sukhan Lee, Kyomin Sohn, and Jung Ho Ahn. 2024. Duplex: A De- vice for Large Language Models with Mixture of Experts, Grouped Query Atten- tion, and Continuous Batching. In2024 57th IEEE/ACM International Symposium on Microarchitecture (MICRO). 1429–1443. https://doi.org/10.11...

    work page doi:10.1109/micro61859 2024

  76. [76]

    Wentao Zhao, Boya Lv, Meng Wu, Peiyu Chen, Fengyun Yan, Yufei Ma, Tianyu Jia, Ru Huang, and Le Ye. 2025. 3D-TokSIM: Stacking 3D Memory with Token- Stationary Compute-in-Memory for Speculative LLM Inference. In2025 62nd ACM/IEEE Design Automation Conference (DAC). 1–7. https://doi.org/10.1109/ DAC63849.2025.11132883

    work page arXiv 2025

  77. [77]

    Xing, Hao Zhang, Joseph E

    Lianmin Zheng, Wei-Lin Chiang, Ying Sheng, Siyuan Zhuang, Zhanghao Wu, Yonghao Zhuang, Zi Lin, Zhuohan Li, Dacheng Li, Eric P. Xing, Hao Zhang, Joseph E. Gonzalez, and Ion Stoica. 2023. Judging LLM-as-a-judge with MT- bench and Chatbot Arena. InProceedings of the 37th International Conference on Neural Information Processing Systems(New Orleans, LA, USA)(...

    2023