Achieving Cloud-Grade SLOs for Local Mixture-of-Experts Inference through CPU-GPU Hybrid Design
On the map: Mixture-of-experts → Efficient MoE training and inference systems
Abstract (arXiv)
Local deployment of large Mixture-of-Experts (MoE) models falls short of the service quality achieved in cloud-scale environments, even under low-concurrency workloads. We identify four key gaps in local MoE inference: reliance on capacity-reduced models (quantized, distilled, rerouted), inability to meet 30-second TTFT for long prefills (more than 12K), sub-baseline decode throughput (under 20 tokens/s), and poor concurrency under mixed prefill-decode and batched decode workloads. We present a CPU-GPU hybrid system that achieves cloud-level SLOs on dual-socket commodity CPUs and consumer GPUs by (1) stream-loading prefill (SLP), boosting prefill throughput to 1,200 tokens/s and enabling 32K prompts within 30 seconds; (2) distributed SLP (DSLP) with SmallEP expert parallelism, reaching 1,800 tokens/s and 45K prompts in 30 seconds on two RTX 5090s; (3) intra-node prefill-decode disaggregation with zero-copy shared weights and a dual-batch attention-MoE overlap scheme, sustaining concurrency with under 15 percent latency increase and 50 percent throughput gains; (4) an AVX-512-optimized FP8 GEMV kernel, enabling native CPU FP8 inference while delivering 4-5x lower CPU latency; and (5) fine-grained CPU parallelism that attains 28 tokens/s on INT4 DeepSeek-V3 and 21.5 tokens/s on intact FP8 V3. Evaluations show our system delivers cloud-level QoS for flagship MoE models on consumer CPU-GPU platforms, reshaping local deployment with intact, original-precision inference and enabling high-quality, cost-effective access without datacenter infrastructure.
Key facts. Cited by 2 papers in the map (data through 14 Oct 2026). Placed in Efficient MoE training and inference systems, one of 12 directions in Mixture-of-experts. Builds on 25 of its 59 references that are in the map. First posted on arXiv 9 Jun 2026.
Builds on
25 of 59 references.
Closest ancestors · 6
Same direction, newest first
- 2025Step-3 is Large yet Affordable: Model-system Co-design for Cost-effective Decoding25 Jul
- 2025Serving Large Language Models on Huawei CloudMatrix38415 Jun
- 2024HOBBIT: A Mixed Precision Expert Offloading System for Fast MoE Inference3 Nov
- 2024ProMoE: Fast MoE-based LLM Serving using Proactive Caching29 Oct
- 2024ExpertFlow: Efficient Mixture-of-Experts Inference via Predictive Expert Caching and Token Scheduling23 Oct
- 2024Fiddler: CPU-GPU Orchestration for Fast Inference of Mixture-of-Experts Models10 Feb
Other references · 19
- 2025DeepSeek-R1: Incentivizing Reasoning Capability in LLMs via Reinforcement Learningcited by 6,330
- 2017Outrageously Large Neural Networks: The Sparsely-Gated Mixture-of-Experts Layercited by 3,509
- 2023FlashAttention-2: Faster Attention with Better Parallelism and Work Partitioningcited by 2,598
- 2019Megatron-LM: Training Multi-Billion Parameter Language Models Using Model Parallelismcited by 1,868
- 2020GShard: Scaling Giant Models with Conditional Computation and Automatic Shardingcited by 1,631
- 2024DeepSeek-V2: A Strong, Economical, and Efficient Mixture-of-Experts Language Modelcited by 1,135
- 2024DeepSeek-V3 Technical Reportcited by 811
- 2025Kimi K2: Open Agentic Intelligencecited by 567
- 2023Ring Attention with Blockwise Transformers for Near-Infinite Contextcited by 457
- 2024LongBench v2: Towards Deeper Understanding and Reasoning on Realistic Long-context Multitaskscited by 379
- 2023DeepSpeed Ulysses: System Optimizations for Enabling Training of Extreme Long Sequence Transformer Modelscited by 245
- 2022FP8 Formats for Deep Learningcited by 196
7 more
- 2023SARATHI: Efficient LLM Inference by Piggybacking Decodes with Chunked Prefillscited by 193
- 2024NanoFlow: Towards Optimal Large Language Model Serving Throughputcited by 90
- 2023FP8-LM: Training FP8 Large Language Modelscited by 77
- 2024Scaling FP8 training to trillion-token LLMscited by 65
- 2025Optimizing Large Language Model Training Using FP4 Quantizationcited by 56
- 2023Striped Attention: Faster Ring Attention for Causal Transformerscited by 54
- 2024Context Parallelism for Scalable Million-Token Inferencecited by 26
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Citing papers per year: 2026: 2.
2 papers.
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- 2025MoBiLE: Efficient Mixture-of-Experts Inference on Consumer GPU with Mixture of Big Little Experts
- 2026DALI: A Workload-Aware Offloading Framework for Efficient MoE Inference on Local PCs
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- 2026Communication-Aware Placement and Pruning for Efficient Mixture-of-Experts Inference
- 2026TriMoE: Augmenting GPU with AMX-Enabled CPU and DIMM-NDP for High-Throughput MoE Inference via Offloading