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Computing-in-Memory (CIM) macros have gained popularity for deep learning acceleration due to their highly parallel computation and low power consumption. However, limited macro size and ADC precision introduce throughput and accuracy…

硬件体系结构 · 计算机科学 2026-05-01 Ming-Han Lin , Tian-Sheuan Chang

Attention mechanisms underpin the success of large language models (LLMs), yet their substantial computational and memory overhead poses challenges for optimizing efficiency and performance. A critical bottleneck arises as KV cache and…

计算与语言 · 计算机科学 2025-07-24 Luoyang Sun , Cheng Deng , Jiwen Jiang , Xinjian Wu , Haifeng Zhang , Lei Chen , Lionel Ni , Jun Wang

Large Language Models (LLMs), such as GPT and LLaMA, introduce unique memory access characteristics during inference due to frequent token sequence lookups and embedding vector retrievals. These workloads generate highly irregular and…

硬件体系结构 · 计算机科学 2025-12-17 Songze Liu , Hongkun Du , Shaowen Wang

Byte-addressable non-volatile main memory (NVM) demands transactional mechanisms to access and manipulate data on NVM atomically. Those transaction mechanisms often employ a logging mechanism (undo logging or redo logging). However, the…

分布式、并行与集群计算 · 计算机科学 2019-04-19 Kai Wu , Jie Ren , Dong Li

Scaling Transformers to longer sequence lengths has been a major problem in the last several years, promising to improve performance in language modeling and high-resolution image understanding, as well as to unlock new applications in…

机器学习 · 计算机科学 2023-07-18 Tri Dao

High-performance Host processors can integrate Processing-In-Memory (PIM) devices, which can accelerate memory-intensive kernels of Machine Learning (ML) models, including Large Language Models (LLMs), by leveraging the large memory…

Computing has a huge memory problem. The memory system, consisting of multiple technologies at different levels, is responsible for most of the energy consumption, performance bottlenecks, robustness problems, monetary cost, and hardware…

硬件体系结构 · 计算机科学 2025-09-05 Onur Mutlu , Ataberk Olgun , Ismail Emir Yuksel

We realized an organic electrical memory device with a simple structure based on single layer pentacene film embedded between Al and ITO electrodes. The optimization of the thickness and deposition rate of pentacene resulted in a reliable…

材料科学 · 物理学 2009-08-11 Shengwei Shi , Junbiao Peng , Jian Lin , Dongge Ma

Processing-in-memory (PIM) has emerged as a promising solution for accelerating memory-intensive workloads as they provide high memory bandwidth to the processing units. This approach has drawn attention not only from the academic community…

硬件体系结构 · 计算机科学 2024-09-11 Dongjae Lee , Bongjoon Hyun , Taehun Kim , Minsoo Rhu

In this paper, we propose a 'full-stack' solution to designing high capacity and low latency on-chip cache hierarchies by starting at the circuit level of the hardware design stack. First, we propose a novel Gain Cell (GC) design using…

硬件体系结构 · 计算机科学 2021-10-07 Sarabjeet Singh , Neelam Surana , Pranjali Jain , Joycee Mekie , Manu Awasthi

Resistive memories have limited lifetime caused by limited write endurance and highly non-uniform write access patterns. Two main techniques to mitigate endurance-related memory failures are 1) wear-leveling, to evenly distribute the writes…

硬件体系结构 · 计算机科学 2020-10-07 Leonid Yavits , Lois Orosa , Suyash Mahar , João Dinis Ferreira , Mattan Erez , Ran Ginosar , Onur Mutlu

Transformers and large language models (LLMs) have revolutionized machine learning, with attention mechanisms at the core of their success. As the landscape of attention variants expands, so too do the challenges of optimizing their…

计算与语言 · 计算机科学 2025-02-24 Feiyang Chen , Yu Cheng , Lei Wang , Yuqing Xia , Ziming Miao , Lingxiao Ma , Fan Yang , Jilong Xue , Zhi Yang , Mao Yang , Haibo Chen

Content Addressable Memories (CAMs) are considered a key-enabler for in-memory computing (IMC). IMC shows order of magnitude improvement in energy efficiency and throughput compared to traditional computing techniques. Recently, analog CAMs…

硬件体系结构 · 计算机科学 2022-03-07 Jinane Bazzi , Jana Sweidan , Mohammed E. Fouda , Rouwaida Kanj , Ahmed M. Eltawil

The increasing prevalence and growing size of data in modern applications have led to high costs for computation in traditional processor-centric computing systems. Moving large volumes of data between memory devices (e.g., DRAM) and…

硬件体系结构 · 计算机科学 2022-06-01 Geraldo F. Oliveira , Juan Gómez-Luna , Saugata Ghose , Onur Mutlu

This paper summarizes the idea of ChargeCache, which was published in HPCA 2016 [51], and examines the work's significance and future potential. DRAM latency continues to be a critical bottleneck for system performance. In this work, we…

硬件体系结构 · 计算机科学 2018-05-11 Hasan Hassan , Gennady Pekhimenko , Nandita Vijaykumar , Vivek Seshadri , Donghyuk Lee , Oguz Ergin , Onur Mutlu

The number of processing elements (PEs) in a fixed-sized systolic accelerator is well matched for large and compute-bound DNNs; whereas, memory-bound DNNs suffer from PE underutilization and fail to achieve peak performance and energy…

信号处理 · 电气工程与系统科学 2020-06-29 Nandan Kumar Jha , Shreyas Ravishankar , Sparsh Mittal , Arvind Kaushik , Dipan Mandal , Mahesh Chandra

DRAM is the prevalent main memory technology, but its long access latency can limit the performance of many workloads. Although prior works provide DRAM designs that reduce DRAM access latency, their reduced storage capacities hinder the…

硬件体系结构 · 计算机科学 2020-05-27 Haocong Luo , Taha Shahroodi , Hasan Hassan , Minesh Patel , Abdullah Giray Yaglikci , Lois Orosa , Jisung Park , Onur Mutlu

Over the past decade, Supercomputers and Data centers have evolved dramatically to cope with the increasing performance requirements of applications and services, such as scientific computing, generative AI, social networks or cloud…

网络与互联网体系结构 · 计算机科学 2025-11-10 Cristina Olmedilla , Jesus Escudero-Sahuquillo , Pedro J. Garcia , Francisco J. Quiles , Jose Duato

This paper studies the impact of DRAM writes on DDR5-based system. To efficiently perform DRAM writes, modern systems buffer write requests and try to complete multiple write operations whenever the DRAM mode is switched from read to write.…

硬件体系结构 · 计算机科学 2025-12-23 Suhas Vittal , Moinuddin Qureshi

Energy consumption has become a first-class optimization goal in design and implementation of data-intensive computing systems. This is particularly true in the design of database management systems (DBMS), which was found to be the major…

数据库 · 计算机科学 2017-03-09 Peyman Behzadnia , Yi-Cheng Tu , Bo Zeng , Wei Yuan