Download or read book Shared Resource Management for Efficient Heterogeneous Computing written by Jaekyu Lee and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The demand for heterogeneous computing, because of its performance and energy efficiency, has made on-chip heterogeneous chip multi-processors (HCMP) become the mainstream computing platform, as the recent trend shows in a wide spectrum of platforms from smartphone application processors to desktop and low-end server processors. The performance of on-chip GPUs is not yet comparable to that of discrete GPU cards, but vendors have integrated more powerful GPUs and this trend will continue in upcoming processors. In this architecture, several system resources are shared between CPUs and GPUs. The sharing of system resources enables easier and cheaper data transfer between CPUs and GPUs, but it also causes resource contention problems between cores. The resource sharing problem has existed since the homogeneous (CPU-only) chip-multi processor (CMP) was introduced. However, resource sharing in HCMPs shows different aspects because of the different nature of CPU and GPU cores. In order to solve the resource sharing problem in HCMPs, we consider efficient shared resource management schemes, in particular tackling the problem in shared last-level cache and interconnection network. In the thesis, we propose four resource sharing mechanisms: First, we propose an efficient cache sharing mechanism that exploits the different characteristics of CPU and GPU cores to effectively share cache space between them. Second, adaptive virtual channel partitioning for on-chip interconnection network is proposed to isolate inter-application interference. By partitioning virtual channels to CPUs and GPUs, we can prevent the interference problem while guaranteeing quality-of-service (QoS) for both cores. Third, we propose a dynamic frequency controlling mechanism to efficiently share system resources. When both cores are active, the degree of resource contention as well as the system throughput will be affected by the operating frequency of CPUs and GPUs. The proposed mechanism tries to find optimal operating frequencies for both cores, which reduces the resource contention while improving system throughput. Finally, we propose a second cache sharing mechanism that exploits GPU-semantic information. The programming and execution models of GPUs are more strict and easier than those of CPUs. Also, programmers are asked to provide more information to the hardware. By exploiting these characteristics, GPUs can energy-efficiently exercise the cache and simpler, but more efficient cache partitioning can be enabled for HCMPs.
Download or read book Resource Management for Efficient Single ISA Heterogeneous Computing written by Jian Chen (doctor of electrical and computer engineering.) and published by . This book was released on 2011 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Single-ISA heterogeneous multi-core processors (SHMP) have become increasingly important due to their potential to significantly improve the execution efficiency for diverse workloads and thereby alleviate the power density constraints in Chip Multiprocessors (CMP). The importance of SHMP is further underscored by the fact that manufacturing defects and process variation could also cause single-ISA heterogeneity in CMPs even though the CMP is originally designed as homogeneous. However, to fully exploit the execution efficiency that SHMP has to offer, programs have to be efficiently mapped/scheduled to the appropriate cores such that the hardware resources of the cores match the resource demands of the programs, which is challenging and remains an open problem. This dissertation presents a comprehensive set of off-line and on-line techniques that leverage analytical performance modeling to bridge the gap between the workload diversity and the hardware heterogeneity. For the off-line scenario, this dissertation presents an efficient resource demand analysis framework that can estimate the resource demands of a program based on the inherent characteristics of the program without using any detailed simulation. Based on the estimated resource demands, this dissertation further proposes a multi-dimensional program-core matching technique that projects program resource demands and core configurations to a unified multi-dimensional space, and uses the weighted Euclidean distance between these two to identify the matching program-core pair. This dissertation also presents a dynamic and predictive application scheduler for SHMPs. It uses a set of hardware-efficient online profilers and an analytical performance model to simultaneously predict the application's performance on different cores. Based on the predicted performance, the scheduler identifies and enforces near-optimal application assignment for each scheduling interval without any trial runs or off-line profiling. Using only a few kilo-bytes of extra hardware, the proposed heterogeneity-aware scheduler improves the weighted speedup by 11.3% compared with the commodity OpenSolaris scheduler and by 6.8% compared with the best known research scheduler. Finally, this dissertation presents a predictive yet cost effective mechanism to manage intra-core and/or inter-core resources in dynamic SHMP. It also uses a set of hardware-efficient online profilers and an analytical performance model to predict the application's performance with different resource allocations. Based on the predicted performance, the resource allocator identifies and enforces near optimum resource partitions for each epoch without any trial runs. The experimental results show that the proposed predictive resource management framework could improve the weighted speedup of the CMP system by an average of 11.6% compared with the equal partition scheme, and 9.3% compared with existing reactive resource management scheme.
Download or read book Management and Scheduling of Accelerators for Heterogeneous High Performance Computing written by Tobias Beisel and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of heterogeneous computing resources, such as graphics processing units or other specialized co-processors, has become widespread in recent years because of their performance and energy efficiency advantages. Operating system approaches that are limited to optimizing CPU usage are no longer sufficient for the efficient utilization of systems that comprise diverse resource types. Enabling task preemption on these architectures and migration of tasks between different resource types at run-time is not only key to improving the performance and energy consumption but also to enabling automatic scheduling methods for heterogeneous compute nodes. This thesis proposes novel techniques for run-time management of heterogeneous resources and enabling tasks to migrate between diverse hardware. It provides fundamental work towards future operating systems by discussing implications, limitations, and chances of the heterogeneity and introducing solutions for energy- and performance-efficient run-time systems. Scheduling methods to utilize heterogeneous systems by the use of a centralized scheduler are presented that show benefits over existing approaches in varying case studies.
Download or read book Ubiquitous Intelligence and Computing written by Jadwiga Indulska and published by Springer Science & Business Media. This book was released on 2007-06-29 with total page 1280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 4th International Conference on Ubiquitous Intelligence and Computing, UIC 2007, held in Hong Kong, China in July 2007, co-located with ATC 2007, the 4th International Conference on Autonomic and Trusted Computing. The 119 revised full papers presented together with 1 keynote paper and 1 invited paper were carefully reviewed and selected from 463 submissions. The papers are organized in topical sections on smart objects and embedded systems, smart spaces/environments/services, ad-hoc and intelligent networks, sensor networks, pervasive communication and mobile systems, context-aware applications and systems, service oriented middleware and applications, intelligent computing: models and services, as well as security, safety and privacy.
Download or read book Resource Management for Heterogeneous Computing Systems written by Sameer Shivle and published by . This book was released on 2004 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Grid and Cooperative Computing GCC 2005 written by Hai Zhuge and published by Springer. This book was released on 2005-11-16 with total page 1222 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the accepted papers for the 4th International Conference onGridandCooperativeComputing(GCC2005),heldinBeijing,China,during November 30 – December 3, 2005.The conferenceseries of GCC aims to provide an international forum for the presentation and discussion of research trends on the theory, method, and design of Grid and cooperative computing as well as their scienti?c, engineering and commercial applications. It has become a major annual event in this area. The First International Conference on Grid and Cooperative Computing (GCC2002)received168submissions.GCC2003received550submissions,from which 176 regular papers and 173 short papers were accepted. The acceptance rate of regular papers was 32%, and the total acceptance rate was 64%. GCC 2004 received 427 main-conference submissions and 154 workshop submissions. The main conference accepted 96 regular papers and 62 short papers. The - ceptance rate of the regular papers was 23%. The total acceptance rate of the main conference was 37%. For this conference, we received 576 submissions. Each was reviewed by two independent members of the International Program Committee. After carefully evaluating their originality and quality, we accepted 57 regular papers and 84 short papers. The acceptance rate of regular papers was 10%. The total acc- tance rate was 25%.
Download or read book Parallel Computing on Heterogeneous Networks written by Alexey L. Lastovetsky and published by John Wiley & Sons. This book was released on 2008-05-02 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: New approaches to parallel computing are being developed that make better use of the heterogeneous cluster architecture Provides a detailed introduction to parallel computing on heterogenous clusters All concepts and algorithms are illustrated with working programs that can be compiled and executed on any cluster The algorithms discussed have practical applications in a range of real-life parallel computing problems, such as the N-body problem, portfolio management, and the modeling of oil extraction
Download or read book Fundamentals of 6G Communications and Networking written by Xingqin Lin and published by Springer Nature. This book was released on 2024-01-12 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book begins with a historical overview of the evolution of mobile technologies and addresses two key questions: why do we need 6G? and what will 6G be? The remaining chapters of this book are organized into three parts: Part I covers the foundation of an end-to-end 6G system by presenting 6G vision, driving forces, key performance indicators, and societal requirements on digital inclusion, sustainability, and intelligence. Part II presents key radio technology components for the 6G communications to deliver extreme performance, including new radio access technologies at high frequencies, joint communications and sensing, AI-driven air interface, among others. Part III describes key enablers for intelligent 6G networking, including network disaggregation, edge computing, data-driven management and orchestration, network security and trustworthiness, among others. This book is relevant to researchers, professionals, and academics working in 5G/6G and beyond.
Download or read book Fog Enabled Intelligent IoT Systems written by Yang Yang and published by Springer Nature. This book was released on 2019-10-16 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book first provides a comprehensive review of state-of-the-art IoT technologies and applications in different industrial sectors and public services. The authors give in-depth analyses of fog computing architecture and key technologies that fulfill the challenging requirements of enabling computing services anywhere along the cloud-to-thing continuum. Further, in order to make IoT systems more intelligent and more efficient, a fog-enabled service architecture is proposed to address the latency requirements, bandwidth limitations, and computing power issues in realistic cross-domain application scenarios with limited priori domain knowledge, i.e. physical laws, system statuses, operation principles and execution rules. Based on this fog-enabled architecture, a series of data-driven self-learning applications in different industrial sectors and public services are investigated and discussed, such as robot SLAM and formation control, wireless network self-optimization, intelligent transportation system, smart home and user behavior recognition. Finally, the advantages and future directions of fog-enabled intelligent IoT systems are summarized. Provides a comprehensive review of state-of-the-art IoT technologies and applications in different industrial sectors and public services Presents a fog-enabled service architecture with detailed technical approaches for realistic cross-domain application scenarios with limited prior domain knowledge Outlines a series of data-driven self-learning applications (with new algorithms) in different industrial sectors and public services
Download or read book Grid Resource Management written by Mumtaz Siddiqui and published by Springer. This book was released on 2010-01-30 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a dynamic computing environment, such as the Grid, resource management plays a crucial role for making distributed resources available on-demand to anyone from anywhere at any time without undermining the resource autonomy; this becomes an art when dealing with heterogeneous resources distributed under multiple trust domains spanning across the Internet. Today Grid execution environments provide abstract workflow descriptions that need a dynamic mapping to actual deployments; this further accentuates the importance of resource management in the Grid. This monograph renders boundaries of the Grid resource management, identifies research challenges and proposes new solutions with innovative techniques for on-demand provisioning, automatic deployments, dynamic synthesis, negotiation-based advance reservation and capacity planning of Grid resources. The Grid capacity planning is performed with multi-constrained optimized resource allocations by modelling resource allocation as an on-line strip packing problem and introducing a new solution that optimizes resource utilization and QoS while generating contention-free solutions. On-demand resource provisioning becomes possible by simplifying abstract resource descriptions independent from the concrete installations. The book further explains the use of the semantic web technologies in the Grid to specify explicit definitions and unambiguous machine interpretable resource descriptions for intelligent resource matching and synthesis; the synthesis process generates new compound resources with aggregated capabilities and prowess. The newly introduced techniques haven been developed and integrated in ASKALON Grid application development and runtime environment, deployed in the Austrian Grid, and demonstrated through well performed experiments.
Download or read book Grid Resource Management written by Jarek Nabrzyski and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grid Resource Management: State of the Art and Future Trends presents an overview of the state of the field and describes both the real experiences and the current research available today. Grid computing is a rapidly developing and changing field, involving the shared and coordinated use of dynamic, multi-institutional resources. Grid resource management is the process of identifying requirements, matching resources to applications, allocating those resources, and scheduling and monitoring Grid resources over time in order to run Grid applications as efficiently as possible. While Grids have become almost commonplace, the use of good Grid resource management tools is far from ubiquitous because of the many open issues of the field, including the multiple layers of schedulers, the lack of control over resources, the fact that resources are shared, and that users and administrators have conflicting performance goals.
Download or read book 3rd Symposium of Ubiquitous Computing and Ambient Intelligence 2008 written by Juan Manuel Corchado Rodríguez and published by Springer Science & Business Media. This book was released on 2008-09-16 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Symposium on Ubiquitous Computing and Ambient Intelligence (UCAmI) began as a workshop held in 2003 in San Sebastián (Spain) under the Spanish Artificial Intelligence Conference. This event gathered 32 attendees and 18 papers were p- sented. The second edition, already as a Symposium, took place in Granada (Spain) under the first Spanish Computer Science Conference (CEDI). Later, in 2006, a s- ond workshop was celebrated in Ciudad Real and, in 2007; the second Symposium was organized in Zaragoza by the CEDI conference. Now we continue to work on the organization of this event in Salamanca, a beautiful Spanish city. The European Community and the Sixth and Seventh Framework Programs - courage researchers to explore the generic scope of the AmI vision. In fact, some researchers have a crucial role in this vision. Emile Aarts from Philips describes - bient Intelligence as "the integration of technology into our environment, so that p- ple can freely and interactively utilize it". This idea agrees with the proposal of Mark Weiser regarding the Ubiquitous Computing paradigm.
Download or read book Resource Management and Efficiency in Cloud Computing Environments written by Turuk, Ashok Kumar and published by IGI Global. This book was released on 2016-11-08 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today’s advancements in technology have brought about a new era of speed and simplicity for consumers and businesses. Due to these new benefits, the possibilities of universal connectivity, storage and computation are made tangible, thus leading the way to new Internet-of Things solutions. Resource Management and Efficiency in Cloud Computing Environments is an authoritative reference source for the latest scholarly research on the emerging trends of cloud computing and reveals the benefits cloud paths provide to consumers. Featuring coverage across a range of relevant perspectives and topics, such as big data, cloud security, and utility computing, this publication is an essential source for researchers, students and professionals seeking current research on the organization and productivity of cloud computing environments.
Download or read book Efficient Resource Management in Heterogeneous Multiprocessor Systems written by Julio M. Merino Vidal and published by . This book was released on 2007 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the 1st International Conference on Smart Innovation Ergonomics and Applied Human Factors SEAHF written by César Benavente-Peces and published by Springer. This book was released on 2019-06-20 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses a range of real-world issues including industrial activity, energy management, education, business and health. Today, technology is a part of virtually every human activity, and is used to support, monitor and manage equipment, facilities, commodities, industry, business, and individuals’ health, among others. As technology evolves, new applications, methods and techniques arise, while at the same time citizens’ expectations from technology continue to grow. In order to meet the nearly insatiable demand for new applications, better performance and higher reliability, trustworthiness, security, and power consumption efficiency, engineers must deliver smart innovations, i.e., must develop the best techniques, technologies and services in a way that respects human beings and the environment. With that goal in mind, the key topics addressed in this book are: smart technologies and artificial intelligence, green energy systems, aerospace engineering/robotics and IT, information security and mobile engineering, IT in bio-medical engineering and smart agronomy, smart marketing, management and tourism policy, technology and education, and hydrogen and fuel-cell energy technologies.
Download or read book Coordinated Resource Management for Guaranteed High Performance and Efficient Utilization in Lambda Grids written by Nut Taesombut and published by . This book was released on 2007 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging configurable optical networks and Grid computing create intriguing opportunities for new application capabilities and resource efficiencies. Applications can exploit dedicated, high-speed optical circuits to tightly interconnect remote resources on-demand, and achieve high quality of service. However, they must contend with the complexity of highly distributed and heterogeneous resource environments. In addition, network configurability presents unique challenges, adding the complexity of planning configurations to that of traditional end resource management. To enable efficient and simple development of high performance applications, this dissertation proposes the Distributed Virtual Computer (DVC), a novel integrated architecture for managing configurable networks and wide-area resource sharing. The DVC allows an application to describe and acquire a combined set of communication and end resources, and then automatically manages them for guaranteed, high performance. Such an integrated approach enables coordinated resource management improving both application capabilities and resource efficiencies. In this framework, a key challenge is selecting appropriate sets of resources for individual applications. We formulate the selection problem, explore several approaches, and evaluate each via simulation. Best performance is achieved by techniques that combine the selection of communication and end resources. Such approaches produce high-quality solutions both for application performance and for network efficiency, and scale well for large resource environments. This enables an online service where applications can request and acquire high-quality resources quickly on-demand. In a multi-domain network, a critical tension exists between service providers who are business competitors. As a result, controlled information sharing is required that balances their competitive positions and enables efficient resource selection. We characterize the network information that could be shared between providers and assess how individual information affects applications and service providers. Our results suggest providers should share their internal information as it can improve their resource efficiencies and application performance. We implement a DVC system software prototype and present experimental results with real scientific applications and optical networks. We demonstrate our prototype enables the simple configuration of collaborative data visualization environments that can be flexibly run on different physical resource configurations. Additionally, the applications are able to exploit dedicated optical circuits on-demand and efficiently utilize the network capacity.
Download or read book EUC 2004 written by Laurence T. Yang and published by Springer Science & Business Media. This book was released on 2004-08-18 with total page 1135 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the International Conference on Embedded and Ubiquitous Computing, EUC 2004, held in Aizu-Wakamatsu City, Japan, in August 2004. The 104 revised full papers presented were carefully reviewed and selected from more than 260 submissions. The papers are organized in topical sections on embedded hardware and software; real-time systems; power-aware computing; hardware/software codesign and systems-on-chip; mobile computing; wireless communication; multimedia and pervasive computing; agent technology and distributed computing, network protocols, security, and fault-tolerance; and middleware and peer-to-peer computing.
