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Long-context LLM serving is bottlenecked by the cost of attending over ever-growing KV caches. Dynamic sparse attention promises relief by accessing only a small, query-dependent subset of the KV state per decoding step and extending the KV…

Machine Learning · Computer Science 2026-04-30 Zihan Zhao , Baotong Lu , Shengjie Lin , Yizou Chen , Jing Liu , Yanqi Zhang , Ziming Miao , Ming-Chang Yang , Haiying Shen , Qi Chen , Fan Yang

The rapid growth of deep neural network (DNN) workloads has significantly increased the demand for large-capacity on-chip SRAM in machine learning (ML) applications, with SRAM arrays now occupying a substantial fraction of the total die…

Hardware Architecture · Computer Science 2025-12-30 Subhradip Chakraborty , Ankur Singh , Xuming Chen , Gourav Datta , Akhilesh R. Jaiswal

Training large language models (LLMs) in the cloud faces growing memory bottlenecks due to the limited capacity and high cost of GPUs. While GPU memory offloading to CPU and NVMe has made large-scale training more feasible, existing…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-11-19 Sabiha Afroz , Redwan Ibne Seraj Khan , Hadeel Albahar , Jingoo Han , Ali R. Butt

As technology process node scales down, on-chip SRAM caches lose their efficiency because of their low scalability, high leakage power, and increasing rate of soft errors. Among emerging memory technologies, Spin-Transfer Torque Magnetic…

Hardware Architecture · Computer Science 2022-01-13 Elham Cheshmikhani , Hamed Farbeh , Seyed Ghassem Miremadi , Hossein Asadi

This work elaborates on a High performance computing (HPC) architecture based on Simple Linux Utility for Resource Management (SLURM) [1] for deploying heterogeneous Large Language Models (LLMs) into a scalable inference engine. Dynamic…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-08-26 Anderson de Lima Luiz , Shubham Vijay Kurlekar , Munir Georges

We address LLM serving workloads where repeated requests share a common solution structure but differ in localized constraints, such as output schema, variable names, or numeric constants. Prior caching approaches typically reuse either…

Operating Systems · Computer Science 2026-04-01 Azam Nouri

Emerging applications, such as big data analytics and machine learning, require increasingly large amounts of main memory, often exceeding the capacity of current commodity processors built on DRAM technology. To address this, recent…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-10-27 Manel Lurbe , Miguel Avargues , Salvador Petit , Maria E. Gomez , Rui Yang , Guanhao Wang , Julio Sahuquillo

The rise of LLMs has driven demand for private serverless deployments, characterized by moderate-sized models and infrequent requests. While existing serverless solutions follow exclusive GPU allocation, we take a step back to explore…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-12-16 Chuhao Xu , Zijun Li , Quan Chen , Han Zhao , Xueyan Tang , Minyi Guo

Performance modeling of parallel applications on multicore processors remains a challenge in computational co-design due to multicore processors' complex design. Multicores include complex private and shared memory hierarchies. We present a…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-03-26 Atanu Barai , Gopinath Chennupati , Nandakishore Santhi , Abdel-Hameed Badawy , Yehia Arafa , Stephan Eidenbenz

High Performance and Energy Efficiency are critical requirements for Internet of Things (IoT) end-nodes. Exploiting tightly-coupled clusters of programmable processors (CMPs) has recently emerged as a suitable solution to address this…

Hardware Architecture · Computer Science 2023-09-06 Jie Chen , Igor Loi , Eric Flamand , Giuseppe Tagliavini , Luca Benini , Davide Rossi

Current fault-tolerant quantum computer (FTQC) architectures utilize several encoding techniques to enable reliable logical operations with restricted qubit connectivity. However, such logical operations demand additional memory overhead to…

Quantum Physics · Physics 2025-04-15 Takumi Kobori , Yasunari Suzuki , Yosuke Ueno , Teruo Tanimoto , Synge Todo , Yuuki Tokunaga

In the near future the SCM is predicted to modify the form of new programs, the access form to storage, and the way that storage devices themselves are built. Therefore, a combination between the SCM and a designated Memory Allocation…

Operating Systems · Computer Science 2017-07-25 Gal Oren

PCM is a popular backing memory for DRAM main memory in tiered memory systems. PCM has asymmetric access energy; writes dominate reads. MLC asymmetry can vary by an order of magnitude. Many schemes have been developed to take advantage of…

Hardware Architecture · Computer Science 2021-12-06 Stephen Longofono , Seyed Mohammad Seyedzadeh , Alex K. Jones

The Log-Structured Merge-Tree (LSM-tree) has been widely adopted for use in modern NoSQL systems for its superior write performance. Despite the popularity of LSM-trees, they have been criticized for suffering from write stalls and large…

Databases · Computer Science 2020-04-14 Chen Luo , Michael J. Carey

This article summarizes key results of our work on experimental characterization and analysis of latency variation and latency-reliability trade-offs in modern DRAM chips, which was published in SIGMETRICS 2016, and examines the work's…

Important memory-bound kernels, such as linear algebra, convolutions, and stencils, rely on SIMD instructions as well as optimizations targeting improved vectorized data traversal and data re-use to attain satisfactory performance. On on…

Performance · Computer Science 2024-12-23 Miguel O. Blom , Kristian F. D. Rietveld , Rob V. van Nieuwpoort

In many modern AI chips and multicore systems-on-chip, embedded applications exhibit predictable inter-core traffic behavior that can be characterized at design time. For such applications, a variety of design-time traffic management and…

Hardware Architecture · Computer Science 2026-05-07 Meysam Zaeemi , Mehdi Modarressi

Large language models (LLMs) rely on Key-Value (KV) cache to reduce time-to-first-token (TTFT) latency, but existing disk-based KV cache systems using file-per-object layouts suffer from severe scalability bottlenecks due to file system…

Databases · Computer Science 2025-11-26 Weiping Yu , Ye Jiarui , He Mengke , Junfeng Liu , Siqiang Luo

With the skyrocketing costs of GPUs and their virtual instances in the cloud, there is a significant desire to use CPUs for large language model (LLM) inference. KV cache update, often implemented as allocation, copying, and in-place…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-11-18 Arun Ramachandran , Ramaswamy Govindarajan , Murali Annavaram , Prakash Raghavendra , Hossein Entezari Zarch , Lei Gao , Chaoyi Jiang

The trend in industry is towards heterogeneous multicore processors (HMCs), including chips with CPUs and massively-threaded throughput-oriented processors (MTTOPs) such as GPUs. Although current homogeneous chips tightly couple the cores…

Hardware Architecture · Computer Science 2013-10-30 Blake A. Hechtman , Daniel J. Sorin