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The rapid advancement of Large Language Models (LLMs) has revolutionized various aspects of human life, yet their immense computational and energy demands pose significant challenges for efficient inference. The memory wall, the growing…

Hardware Architecture · Computer Science 2025-09-18 Hongyi Li , Songchen Ma , Huanyu Qu , Weihao Zhang , Jia Chen , Junfeng Lin , Fengbin Tu , Rong Zhao

Quantum dot Cellular Automata (QCA) is a novel and potentially attractive technology for implementing computing architectures at the nanoscale. The basic Boolean primitive in QCA is the majority gate. In this paper we present a novel design…

Emerging Technologies · Computer Science 2016-11-15 Mostafa Rahimi Azghadi , O. Kavehie , K. Navi

The advent of CPU-attached persistent memory technology, such as Intel's Optane Persistent Memory Modules (PMM), has brought with it new opportunities for storage. In 2018, IBM Research Almaden began investigating and developing a new…

Hardware Architecture · Computer Science 2021-05-25 Daniel Waddington , Clem Dickey , Moshik Hershcovitch , Sangeetha Seshadri

High performance large scale graph analytics are essential to timely analyze relationships in big data sets. Conventional processor architectures suffer from inefficient resource usage and bad scaling on those workloads. To enable efficient…

Compute-in-memory (CiM) is a promising approach to improving the computing speed and energy efficiency in dataintensive applications. Beyond existing CiM techniques of bitwise logic-in-memory operations and dot product operations, this…

Hardware Architecture · Computer Science 2023-01-03 Yiming Chen , Yushen Fu , Mingyen Lee , Sumitha George , Yongpan Liu , Vijaykrishnan Narayanan , Huazhong Yang , Xueqing Li

Circuit design based on Quantum-dots Cellular Automata technology offers power-efficiency and nano-size circuits. It is an attractive alternative to CMOS technology. The XOR gate is a widely used building element in arithmetic circuits. An…

Emerging Technologies · Computer Science 2024-12-30 Behrouz Safaiezadeh , Majid Haghparast , Lauri Kettunen

The data transfer between a processor and memory has become a design bottleneck in data-intensive applications. Processing-In-Memory (PIM) is a practical approach to overcome the memory wall bottleneck. The 4:2 compressor is suitable for…

Emerging Technologies · Computer Science 2024-07-16 Bahareh Bagheralmoosavi , Seyed Erfan Fatemieh , Mohammad Reza Reshadinezhad , Antonio Rubio

A random access memory (RAM) uses n bits to randomly address N=2^n distinct memory cells. A quantum random access memory (qRAM) uses n qubits to address any quantum superposition of N memory cells. We present an architecture that…

Quantum Physics · Physics 2009-11-13 Vittorio Giovannetti , Seth Lloyd , Lorenzo Maccone

Quantum-dot cellular automata (QCA) shows promise as a post silicon CMOS, low power computational technology. Nevertheless, to generalize QCA for next-generation digital devices, the ability to implement conventional programmable circuits…

Mesoscale and Nanoscale Physics · Physics 2011-10-10 Joshua D. Wood , P. Douglas Tougaw

Inefficient data transfer between computation and memory inspired emerging processing-in-memory (PIM) technologies. Many PIM solutions enable storage and processing using memristors in a crossbar-array structure, with techniques such as…

Hardware Architecture · Computer Science 2021-05-11 Orian Leitersdorf , Ben Perach , Ronny Ronen , Shahar Kvatinsky

Conventional LLM inference architectures suffer from high energy and latency due to frequent data movement across memory hierarchies. We propose Ouroboros, a wafer-scale SRAM-based Computing-in-Memory (CIM) architecture that executes all…

Hardware Architecture · Computer Science 2026-03-04 Yiqi Liu , Yudong Pan , Mengdi Wang , Shixin Zhao , Haonan Zhu , Yinhe Han , Lei Zhang , Ying Wang

Despite huge success of artificial intelligence, hardware systems running these algorithms consume orders of magnitude higher energy compared to the human brain, mainly due to heavy data movements between the memory unit and the computation…

Emerging Technologies · Computer Science 2018-10-23 Amogh Agrawal , Aayush Ankit , Kaushik Roy

With the development of quantum computing, quantum processor demonstrates the potential supremacy in specific applications, such as Grovers database search and popular quantum neural networks (QNNs). For better calibrating the quantum…

Quantum Physics · Physics 2024-11-26 Yuhong Song , Edwin Hsing-Mean Sha , Longshan Xu , Qingfeng Zhuge , Zili Shao

Processing-in-memory (PIM) turns out to be a promising solution to breakthrough the memory wall and the power wall. While prior PIM designs yield successful implementation of bitwise Boolean logic operations locally in memory, it is…

Hardware Architecture · Computer Science 2018-09-25 Xin Ma , Liang Chang , Shuangchen Li , Lei Deng , Yufei Ding , Yuan Xie

While general-purpose computing follows Von Neumann's architecture, the data movement between memory and processor elements dictates the processor's performance. The evolving compute-in-memory (CiM) paradigm tackles this issue by…

Hardware Architecture · Computer Science 2024-11-15 Dhandeep Challagundla , Ignatius Bezzam , Riadul Islam

Quantum random access memory (QRAM) enables efficient classical data access for quantum computers -- a prerequisite for many quantum algorithms to achieve quantum speedup. Despite various proposals, the experimental realization of QRAM…

The rise of data-intensive applications exposed the limitations of conventional processor-centric von-Neumann architectures that struggle to meet the off-chip memory bandwidth demand. Therefore, recent innovations in computer architecture…

Hardware Architecture · Computer Science 2024-05-28 Asif Ali Khan , Hamid Farzaneh , Karl F. A. Friebel , Clément Fournier , Lorenzo Chelini , Jeronimo Castrillon

Computing-in-Memory (CIM) accelerators are a promising solution for accelerating Machine Learning (ML) workloads, as they perform Matrix-Vector Multiplications (MVMs) on crossbar arrays directly in memory. Although the bit widths of the…

Machine Learning · Computer Science 2026-03-20 Rebecca Pelke , Joel Klein , Jose Cubero-Cascante , Nils Bosbach , Jan Moritz Joseph , Rainer Leupers

Graph processing requires irregular, fine-grained random access patterns incompatible with contemporary off-chip memory architecture, leading to inefficient data access. This inefficiency makes graph processing an extremely memory-bound…

Hardware Architecture · Computer Science 2025-03-11 Changmin Shin , Jaeyong Song , Hongsun Jang , Dogeun Kim , Jun Sung , Taehee Kwon , Jae Hyung Ju , Frank Liu , Yeonkyu Choi , Jinho Lee

Homomorphic encryption (HE) enables computation over encrypted data, offering strong privacy guarantees for untrusted computing environments. Practical adoption remains limited by high computational complexity, large ciphertext sizes, and…