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Nowadays the number of available processing cores within computing nodes which are used in recent clustered environments, are growing up with a rapid rate. Despite this trend, the number of available network interfaces in such computing…

分布式、并行与集群计算 · 计算机科学 2012-07-13 Mohsen Soryani , Morteza Analoui , Ghobad Zarrinchian

Index structures are one of the most important tools that DBAs leverage to improve the performance of analytics and transactional workloads. However, building several indexes over large datasets can often become prohibitive and consume…

数据库 · 计算机科学 2020-03-26 Alex Galakatos , Michael Markovitch , Carsten Binnig , Rodrigo Fonseca , Tim Kraska

In social networks, information and influence diffuse among users as cascades. While the importance of studying cascades has been recognized in various applications, it is difficult to observe the complete structure of cascades in practice.…

社会与信息网络 · 计算机科学 2012-10-15 Bo Zong , Yinghui Wu , Ambuj K. Singh , Xifeng Yan

Considerable Progress has been made in the last few years in improving the performance of the distributed database systems. The development of Fragment allocation models in Distributed database is becoming difficult due to the complexity of…

数据库 · 计算机科学 2013-10-07 Priyanka Dash , Ranjita Rout , Satya Bhusan Pratihari , Sanjay Kumar Padhi

Sorting a set of items is a task that can be useful by itself or as a building block for more complex operations. The more sophisticated and fast sorting algorithms become asymptotically, the less efficient they are for small sets of items…

数据结构与算法 · 计算机科学 2019-08-23 Jasper Marianczuk

We present a fast general-purpose algorithm for high-throughput clustering of data "with a two dimensional organization". The algorithm is designed to be implemented with FPGAs or custom electronics. The key feature is a processing time…

仪器与探测器 · 物理学 2015-05-14 A. Annovi , M. Beretta

Sorting is a fundamental and well studied problem that has been studied extensively. Sorting plays an important role in the area of databases, as many queries can be served much faster if the relations are first sorted. One of the most…

数据库 · 计算机科学 2021-03-29 Yamit Barshatz-Schneor , Roy Friedman

The aim of the paper is to introduce general techniques in order to optimize the parallel execution time of sorting on a distributed architectures with processors of various speeds. Such an application requires a partitioning step. For…

分布式、并行与集群计算 · 计算机科学 2016-08-16 Christophe Cérin , Jean-Christophe Dubacq , Jean-Louis Roch , the SafeScale Collaboration

Our paper presents solutions that can significantly improve the delay performance of putting and retrieving data in and out of cloud storage. We first focus on measuring the delay performance of a very popular cloud storage service Amazon…

网络与互联网体系结构 · 计算机科学 2013-11-04 Guanfeng Liang , Ulas C. Kozat

String sorting is an important part of tasks such as building index data structures. Unfortunately, current string sorting algorithms do not scale to massively parallel distributed-memory machines since they either have latency (at least)…

数据结构与算法 · 计算机科学 2024-04-26 Florian Kurpicz , Pascal Mehnert , Peter Sanders , Matthias Schimek

This paper reveals the tree structure as an intermediate result of clustering by fast search and find of density peaks (DPCLUS), and explores the power of using this tree to perform hierarchical clustering. The array used to hold the index…

人工智能 · 计算机科学 2015-06-16 Ji Xu , Guoyin Wang

The AI hardware boom has led modern data centers to adopt HPC-style architectures centered on distributed, GPU-centric computation. Large GPU clusters interconnected by fast RDMA networks and backed by high-bandwidth NVMe storage enable…

数据库 · 计算机科学 2026-05-21 Jigao Luo , Nils Boeschen , Muhammad El-Hindi , Carsten Binnig

The provision of mechanisms for processor allocation in current distributed parallel programming models is very limited. This makes difficult, or even prohibits, the expression of a large class of programs which require a run-time…

分布式、并行与集群计算 · 计算机科学 2011-05-20 James Hanlon , Simon J. Hollis

As resource estimation for jobs is difficult, users often overestimate their requirements. Both commercial clouds and academic campus clusters suffer from low resource utilization and long wait times as the resource estimates for jobs,…

分布式、并行与集群计算 · 计算机科学 2019-05-27 Gourav Rattihalli , Pankaj Saha , Madhusudhan Govindaraju , Devesh Tiwari

Cluster computing was introduced to replace the superiority of super computers. Cluster computing is able to overcome the problems that cannot be effectively dealt with supercomputers. In this paper, we are going to evaluate the performance…

分布式、并行与集群计算 · 计算机科学 2020-09-15 Cinantya Paramita , Fauzi Adi Rafrastara , Usman Sudibyo , R. I. W. Agung Wibowo

The latest trends in high-performance computing systems show an increasing demand on the use of a large scale multicore systems in a efficient way, so that high compute-intensive applications can be executed reasonably well. However, the…

分布式、并行与集群计算 · 计算机科学 2013-02-25 Juliana M. N. Silva , Cristina Boeres , Lúcia M. A. Drummond , Artur A. Pessoa

Developing CPU scheduling algorithms and understanding their impact in practice can be difficult and time consuming due to the need to modify and test operating system kernel code and measure the resulting performance on a consistent…

操作系统 · 计算机科学 2013-07-17 Neetu Goel , R. B. Garg

Searching in P2P networks is fundamental to all overlay networks. P2P networks based on Distributed Hash Tables (DHT) are optimized for single key lookups, whereas unstructured networks offer more complex queries at the cost of increased…

网络与互联网体系结构 · 计算机科学 2008-08-11 Dirk Bradler , Jussi Kangasharju , Max Muehlhaeuser

Indexes provide a method to access data in databases quickly. It can improve the response speed of subsequent queries by building a complete index in advance. However, it also leads to a huge overhead of the continuous updating during…

数据库 · 计算机科学 2019-11-27 Gang Wu , Yidong Song , Guodong Zhao , Wei Sun , Donghong Han , Baiyou Qiao , Guoren Wang , Ye Yuan

Concurrent data structures serve as fundamental building blocks for concurrent computing. Many concurrent counterparts have been designed for basic sequential mechanisms; however, one notable omission is a concurrent tree that supports…

分布式、并行与集群计算 · 计算机科学 2024-05-14 Gal Sela , Erez Petrank