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We present "Reciprocating Locks", a novel mutual exclusion locking algorithm, targeting cache-coherent shared memory (CC), that enjoys a number of desirable properties. The doorway arrival phase and the release operation both run in…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-07-14 Dave Dice , Alex Kogan

Parallel programming is emerging fast and intensive applications need more resources, so there is a huge demand for on-chip multiprocessors. Accessing L1 caches beside the cores are the fastest after registers but the size of private caches…

Performance · Computer Science 2016-09-27 Diman Zad Tootaghaj , Farshid Farhat

We investigate how to concatenate different decoherence-free subspaces (DFSs) to realize scalable universal fault-tolerant quantum computation. Based on tunable $XXZ$ interactions, we present an architecture for scalable quantum computers…

Quantum Physics · Physics 2009-11-10 Zheng-Wei Zhou , Bo Yu , Xingxiang Zhou , Marc J. Feldman , Guang-Can Guo

The rapid adoption of large language models (LLMs) is pushing AI accelerators toward increasingly powerful and specialized designs. Instead of further complicating software development with deeply hierarchical scratchpad memories (SPMs) and…

Hardware Architecture · Computer Science 2025-12-09 Zhongchun Zhou , Chengtao Lai , Yuhang Gu , Wei Zhang

Pooling PCIe devices across multiple hosts offers a promising solution to mitigate stranded I/O resources, enhance device utilization, address device failures, and reduce total cost of ownership. The only viable option today are PCIe…

Current HPC systems provide memory resources that are statically configured and tightly coupled with compute nodes. However, workloads on HPC systems are evolving. Diverse workloads lead to a need for configurable memory resources to…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-03-23 Jacob Wahlgren , Maya Gokhale , Ivy B. Peng

Due to its storage and retrieval efficiency, cross-modal hashing~(CMH) has been widely used for cross-modal similarity search in multimedia applications. According to the training strategy, existing CMH methods can be mainly divided into…

Information Retrieval · Computer Science 2017-07-27 Qing-Yuan Jiang , Wu-Jun Li

We define a new set of primitive operations that greatly simplify the implementation of non-blocking data structures in asynchronous shared-memory systems. The new operations operate on a set of Data-records, each of which contains multiple…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-12-20 Trevor Brown , Faith Ellen , Eric Ruppert

The Partitioned Global Address Space (PGAS), a memory model in which the global address space is explicitly partitioned across compute nodes in a cluster, strives to bridge the gap between shared-memory and distributed-memory programming.…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-12-02 Garvit Dewan , Louis Jenkins

The Compute Express Link (CXL) interconnect enables compute "pods" that pool memory across servers to reduce cost and improve efficiency. These pods also facilitate pairwise communication whose needs conflict with pooling. Importantly,…

Hardware Architecture · Computer Science 2026-04-06 Yuhong Zhong , Fiodar Kazhamiaka , Pantea Zardoshti , Shuwei Teng , Rodrigo Fonseca , Mark D. Hill , Daniel S. Berger

Increasing workload demands and emerging technologies necessitate the use of various memory and storage tiers in computing systems. This paper presents results from a CXL-based Experimental Memory Request Logger that reveals precise memory…

Operating Systems · Computer Science 2025-08-14 Vinicius Petrucci , Felippe Zacarias , David Roberts

With the rapid increase in cloud computing, concerns surrounding data privacy, security, and confidentiality also have been increased significantly. Not only cloud providers are susceptible to internal and external hacks, but also in some…

Cryptography and Security · Computer Science 2020-01-27 M. Sadegh Riazi , Kim Laine , Blake Pelton , Wei Dai

In the existing software development ecosystem, security issues introduced by third-party code cannot be overlooked. Among these security concerns, memory access vulnerabilities stand out prominently, leading to risks such as the theft or…

Cryptography and Security · Computer Science 2025-09-30 Yue Jin , Yibin Xu , Chengyuan Yang , Han Wang , Tianyi Huang , Tianyue Lu , Mingyu Chen

Elasticity plays an important role in modern cloud computing systems. Elastic computing allows virtual machines (i.e., computing nodes) to be preempted when high-priority jobs arise, and also allows new virtual machines to participate in…

Information Theory · Computer Science 2024-03-04 Wenbo Huang , Xudong You , Kai Wan , Robert Caiming Qiu , Mingyue Ji

Exascale I/O initiatives will require new and fully integrated I/O models which are capable of providing straightforward functionality, fault tolerance and efficiency. One solution is the Distributed Asynchronous Object Storage (DAOS)…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-12-04 M. Scot Breitenfeld , Neil Fortner , Jordan Henderson , Jerome Soumagne , Mohamad Chaarawi , Johann Lombardi , Quincey Koziol

Caches at CPU nodes in disaggregated memory architectures amortize the high data access latency over the network. However, such caches are fundamentally unable to improve performance for workloads requiring pointer traversals across linked…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-12-17 Yupeng Tang , Seung-seob Lee , Abhishek Bhattacharjee , Anurag Khandelwal

Consumer machines are increasingly running large ML workloads such as large language models (LLMs), text-to-image generation, and interactive image editing. Unlike datacenter GPUs, consumer GPUs serve single-user, rapidly changing…

Operating Systems · Computer Science 2026-01-21 Yechen Xu , Yifei Wang , Nathanael Ren , Yiran Chen , Danyang Zhuo

While containers efficiently implement the idea of operating-system-level application virtualization, they are often insufficient to increase the server utilization to a desirable level. The reason is that in practice many containerized…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-06-26 Jan S. Rellermeyer , Maher Amer , Richard Smutzer , Karthick Rajamani

Cloud platforms host thousands of tenants that demand POSIX semantics, high throughput, and rapid evolution from their storage layer. Kernel-native distributed file systems supply raw speed, but their privileged code base couples every…

Operating Systems · Computer Science 2025-10-23 Haoyu Li , Jingkai Fu , Qing Li , Windsor Hsu , Asaf Cidon

Organic memories, with small dimension, fast speed and long retention features, are considered as promising candidates for massive data archiving. In order to satisfy the re-quirements for ultra-low power and high-security information…

Emerging Technologies · Computer Science 2025-01-09 Bingjie Guo , Xinhui Chen , An Chen , Jinxin Wang , Wuhong Xue , Tao Wang , Zhixin Wu , Xiaolong Zhong , Jianmin Zeng , Jinjin Li , Mao Li , Xiaohong Xu , Yu Chen , Gang Liu