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In recent years, the size and leakage energy consumption of large last level caches (LLCs) has increased. To address this, embedded DRAM (eDRAM) caches have been considered which have lower leakage energy consumption; however eDRAM caches…

Hardware Architecture · Computer Science 2013-09-30 Sparsh Mittal

This paper summarizes the idea of Adaptive-Latency DRAM (AL-DRAM), which was published in HPCA 2015. The key goal of AL-DRAM is to exploit the extra margin that is built into the DRAM timing parameters to reduce DRAM latency. The key…

Hardware Architecture · Computer Science 2016-03-29 Donghyuk Lee , Yoongu Kim , Gennady Pekhimenko , Samira Khan , Vivek Seshadri , Kevin Chang , Onur Mutlu

Modern multicore processors are employing large last-level caches, for example Intel's E7-8800 processor uses 24MB L3 cache. Further, with each CMOS technology generation, leakage energy has been dramatically increasing and hence, leakage…

Hardware Architecture · Computer Science 2013-10-17 Sparsh Mittal

In modern GPU inference, cache efficiency remains a major bottleneck, and heuristic policies such as \textsc{LRU} can perform far worse than the offline optimum. Existing learning-based caching systems improve hit rates mainly through…

Recent advances in Large Language Model (LLM)-based agents have been propelled by Retrieval-Augmented Generation (RAG), which grants the models access to vast external knowledge bases. Despite RAG's success in improving agent performance,…

Computation and Language · Computer Science 2025-11-06 Shuhang Lin , Zhencan Peng , Lingyao Li , Xiao Lin , Xi Zhu , Yongfeng Zhang

Adaptive reasoning is essential for aligning the computational effort of large language models (LLMs) with the intrinsic difficulty of problems. Current chain-of-thought methods boost reasoning ability but indiscriminately generate long…

Artificial Intelligence · Computer Science 2025-12-17 Ruofan Zhang , Bin Xia , Zhen Cheng , Cairen Jian , Minglun Yang , Ngai Wong , Yuan Cheng

In recent years, SSDs have gained tremendous attention in computing and storage systems due to significant performance improvement over HDDs. The cost per capacity of SSDs, however, prevents them from entirely replacing HDDs in such…

Performance · Computer Science 2018-05-18 Reza Salkhordeh , Shahriar Ebrahimi , Hossein Asadi

This study investigates the use of reinforcement learning to guide a general purpose cache manager decisions. Cache managers directly impact the overall performance of computer systems. They govern decisions about which objects should be…

Machine Learning · Computer Science 2019-10-01 Sami Alabed

Recent development in memory technologies has introduced Spin-Transfer Torque Magnetic RAM (STT-MRAM) as the most promising replacement for SRAMs in on-chip cache memories. Besides its lower leakage power, higher density, immunity to…

Hardware Architecture · Computer Science 2025-12-01 Elham Cheshmikhani , Hamed Farbeh , Hossein Asad

We consider distributed caching of content across several small base stations (SBSs) in a wireless network, where the content is encoded using a maximum distance separable code. Specifically, we apply soft time-to-live (STTL) cache…

Information Theory · Computer Science 2021-04-15 Jesper Pedersen , Alexandre Graell i Amat , Fredrik Brännström , Eirik Rosnes

Existing low-rank adaptation (LoRA) methods face challenges on sparse large language models (LLMs) due to the inability to maintain sparsity. Recent works introduced methods that maintain sparsity by augmenting LoRA techniques with…

Computation and Language · Computer Science 2025-01-16 Yuxuan Hu , Jing Zhang , Xiaodong Chen , Zhe Zhao , Cuiping Li , Hong Chen

Last-Level Cache (LLC) represents the bulk of a modern CPU processor's transistor budget and is essential for application performance as LLC enables fast access to data in contrast to much slower main memory. However, applications with…

Hardware Architecture · Computer Science 2020-06-16 Priyank Faldu

The growing disparity between CPU core counts and available memory bandwidth has intensified memory contention in servers. This particularly affects highly parallelizable applications, which must achieve efficient cache utilization to…

Hardware Architecture · Computer Science 2025-03-17 Alessandro Fogli , Bo Zhao , Peter Pietzuch , Jana Giceva

In modern systems, DRAM-based main memory is significantly slower than the processor. Consequently, processors spend a long time waiting to access data from main memory, making the long main memory access latency one of the most critical…

Hardware Architecture · Computer Science 2016-11-01 Donghyuk Lee

Deeply embedded systems often have the tightest constraints on energy consumption, requiring that they consume tiny amounts of current and run on batteries for years. However, they typically execute code directly from flash, instead of the…

Other Computer Science · Computer Science 2021-04-13 James Pallister , Kerstin Eder , Simon Hollis

Retrieval-Augmented Generation (RAG) has shown significant improvements in various natural language processing tasks by integrating the strengths of large language models (LLMs) and external knowledge databases. However, RAG introduces long…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-04-26 Chao Jin , Zili Zhang , Xuanlin Jiang , Fangyue Liu , Xin Liu , Xuanzhe Liu , Xin Jin

Large Reasoning Language Models (LRLMs or LRMs) demonstrate remarkable capabilities in complex reasoning tasks, but suffer from significant computational inefficiencies due to overthinking phenomena. Existing efficient reasoning methods…

Artificial Intelligence · Computer Science 2025-10-13 Dongqi Zheng

Much sequential data exhibits highly non-uniform information distribution. This cannot be correctly modeled by traditional Long Short-Term Memory (LSTM). To address that, recent works have extended LSTM by adding more activations between…

Neural and Evolutionary Computing · Computer Science 2019-03-07 Yifeng Zhang , Ka-Ho Chow , S. -H. Gary Chan

Small basestations (SBs) equipped with caching units have potential to handle the unprecedented demand growth in heterogeneous networks. Through low-rate, backhaul connections with the backbone, SBs can prefetch popular files during…

Networking and Internet Architecture · Computer Science 2018-03-14 Alireza Sadeghi , Fatemeh Sheikholeslami , Georgios B. Giannakis

Spiking neural networks (SNNs) offer energy efficiency over artificial neural networks (ANNs) but suffer from high latency and computational overhead due to their multi-timestep operational nature. While various dynamic computation methods…

Machine Learning · Computer Science 2025-08-21 Donghwa Kang , Doohyun Kim , Sang-Ki Ko , Jinkyu Lee , Brent ByungHoon Kang , Hyeongboo Baek