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Graphics Processing Units (GPUs) consisting of Streaming Multiprocessors (SMs) achieve high throughput by running a large number of threads and context switching among them to hide execution latencies. The number of thread blocks, and hence…

Hardware Architecture · Computer Science 2015-06-08 Vishwesh Jatala , Jayvant Anantpur , Amey Karkare

To improve traffic management ability, Internet Service Providers (ISPs) are gradually upgrading legacy network devices to programmable devices that support Software-Defined Networking (SDN). The coexistence of legacy and SDN devices gives…

Networking and Internet Architecture · Computer Science 2019-07-24 Zehua Guo , Weikun Chen , Ya-Feng Liu , Yang Xu , Zhi-Li Zhang

We investigate the problem of minimizing the expectation of smooth nonconvex functions in a distributed setting with multiple parallel workers that are able to compute stochastic gradients. A significant challenge in this context is the…

Optimization and Control · Mathematics 2025-06-16 Artavazd Maranjyan , Omar Shaikh Omar , Peter Richtárik

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

Solid state disks (SSDs) have advanced to outperform traditional hard drives significantly in both random reads and writes. However, heavy random writes trigger fre- quent garbage collection and decrease the performance of SSDs. In an SSD…

Operating Systems · Computer Science 2015-06-26 Da Zheng , Randal Burns , Alexander S. Szalay

Object-based parallel file systems have emerged as promising storage solutions for high-performance computing (HPC) systems. Despite the fact that object storage provides a flexible interface, scheduling highly concurrent I/O requests that…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-05-17 Neda Tavakoli , Dong Dai , Yong Chen

3D NAND flash memory with advanced multi-level cell techniques provides high storage density, but suffers from significant performance degradation due to a large number of read-retry operations. Although the read-retry mechanism is…

Hardware Architecture · Computer Science 2021-04-21 Jisung Park , Myungsuk Kim , Myoungjun Chun , Lois Orosa , Jihong Kim , Onur Mutlu

We introduce BriskStream, an in-memory data stream processing system (DSPSs) specifically designed for modern shared-memory multicore architectures. BriskStream's key contribution is an execution plan optimization paradigm, namely RLAS,…

Databases · Computer Science 2019-04-10 Shuhao Zhang , Jiong He , Amelie Chi Zhou , Bingsheng He

3D NAND flash memory with advanced multi-level cell techniques provides high storage density, but suffers from significant performance degradation due to a large number of read-retry operations. Although the read-retry mechanism is…

Hardware Architecture · Computer Science 2021-03-15 Jisung Park , Myungsuk Kim , Myoungjun Chun , Lois Orosa , Jihong Kim , Onur Mutlu

Brain-inspired Spiking Neural Networks (SNNs) have attracted attention for their event-driven characteristics and high energy efficiency. However, the temporal dependency and irregularity of spikes present significant challenges for…

Hardware Architecture · Computer Science 2025-06-11 Kainan Wang , Chengyi Yang , Chengting Yu , Yee Sin Ang , Bo Wang , Aili Wang

With the growing model size, deep neural networks (DNN) are increasingly trained over massive GPU accelerators, which demands a proper parallelization plan that transforms a DNN model into fine-grained tasks and then schedules them to GPUs…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-01-24 Zhiqi Lin , Youshan Miao , Guodong Liu , Xiaoxiang Shi , Quanlu Zhang , Fan Yang , Saeed Maleki , Yi Zhu , Xu Cao , Cheng Li , Mao Yang , Lintao Zhang , Lidong Zhou

SSDs are emerging storage devices which unlike HDDs, do not have mechanical parts and therefore, have superior performance compared to HDDs. Due to the high cost of SSDs, entirely replacing HDDs with SSDs is not economically justified.…

Performance · Computer Science 2018-12-12 Reza Salkhordeh , Mostafa Hadizadeh , Hossein Asadi

Current generation solid-state storage devices are exposing a new bottlenecks in the SCSI and block layers of the Linux kernel, where IO throughput is limited by lock contention, inefficient interrupt handling, and poor memory locality. To…

Operating Systems · Computer Science 2015-04-29 Blake Caldwell

Internet traffic continues to grow exponentially, calling for switches that can scale well in both size and speed. While load-balanced switches can achieve such scalability, they suffer from a fundamental packet reordering problem. Existing…

Networking and Internet Architecture · Computer Science 2014-07-21 Weijun Ding , Jim Xu , Jim Dai , Yang Song , Bill Lin

Spiking Neural Network (SNN) inference has a clear potential for high energy efficiency as computation is triggered by events. However, the inherent sparsity of events poses challenges for conventional computing systems, driving the…

Hardware Architecture · Computer Science 2025-04-09 Simone Manoni , Paul Scheffler , Luca Zanatta , Andrea Acquaviva , Luca Benini , Andrea Bartolini

Phase-change memory (PCM) devices have multiple banks to serve memory requests in parallel. Unfortunately, if two requests go to the same bank, they have to be served one after another, leading to lower system performance. We observe that a…

Hardware Architecture · Computer Science 2019-08-22 Shihao Song , Anup Das , Onur Mutlu , Nagarajan Kandasamy

Disaggregation is an ongoing trend to increase flexibility in datacenters. With interconnect technologies like CXL, pools of CPUs, accelerators, and memory can be connected via a datacenter fabric. Applications can then pick from those…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-06-17 Nils Asmussen , Michael Roitzsch

Distributed Stream Processing (DSP) focuses on the near real-time processing of large streams of unbounded data. To increase processing capacities, DSP systems are able to dynamically scale across a cluster of commodity nodes, ensuring a…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-03-05 Morgan Geldenhuys , Dominik Scheinert , Odej Kao , Lauritz Thamsen

Previous research addressed the potential problems of the hard-disk oriented design of DBMSs of flashSSDs. In this paper, we focus on exploiting potential benefits of flashSSDs. First, we examine the internal parallelism issues of flashSSDs…

Databases · Computer Science 2012-01-04 Hongchan Roh , Sanghyun Park , Sungho Kim , Mincheol Shin , Sang-Won Lee

Recent research has focused on accelerating stencil computations by exploiting emerging hardware like Tensor Cores. To leverage these accelerators, the stencil operation must be transformed to matrix multiplications. However, this…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-01-27 Qiqi GU , Chenpeng Wu , Heng Shi , Jianguo Yao