the proceedings contain 27 papers. the topics discussed include: an analysis of an adjustable speed PFC BL-SEPIC and ZETA converter fed PMBLDCM;real-time particle swarm optimization based parallel hybrid active power ...
the proceedings contain 27 papers. the topics discussed include: an analysis of an adjustable speed PFC BL-SEPIC and ZETA converter fed PMBLDCM;real-time particle swarm optimization based parallel hybrid active power filter under variable load conditions;easy verdict: digital assistant to resolve criminal litigation;virtual machine migration techniques in a cloud computing environment: a survey;virtual machine migration techniques in a cloud computing environment: a survey;analysis of preprocessing algorithms for face detection using KNN and SVM classifiers;and Internet of things based intelligent parking system facilitated by third party payment platform.
MPI is commonly used standard in development of scientific applications. It focuses on interlanguage operability and is not very well object oriented. the paper proposes a general pattern enabling design of distribute...
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ISBN:
(纸本)9783540739395
MPI is commonly used standard in development of scientific applications. It focuses on interlanguage operability and is not very well object oriented. the paper proposes a general pattern enabling design of distributed and object oriented applications. It also presents its sample implementations and performance tests.
On wireless Grids Information Services have special requirements. Resource information has to be updated when users and resource providers arrive and depart frequently. Meanwhile, Information Services may be also mobi...
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ISBN:
(纸本)0769524052
On wireless Grids Information Services have special requirements. Resource information has to be updated when users and resource providers arrive and depart frequently. Meanwhile, Information Services may be also mobile, so the clients and information sources should dynamically detect the existence and departure of Information Services. We present WGMDS, a WSRF-compliant and P2P (peer to peer) based Information Service to meet the special requirements on wireless Grids. We employ P2P mechanism to integrate Information Services to provide Grid-wide resource information. In WGMDS, the clients and information sources dynamically probe nearest Information Services to query or register resource information. three algorithms are proposed to support the Information Service architecture. We use simulations in NS2 to evaluate the three algorithms.
For simultaneous multithreaded (SMT) processors, a large rename register file (RRF) is indispensable for holding intermediate results of in-flight instructions from multiple threads. Meanwhile, inter-thread interferen...
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ISBN:
(纸本)0769524052
For simultaneous multithreaded (SMT) processors, a large rename register file (RRF) is indispensable for holding intermediate results of in-flight instructions from multiple threads. Meanwhile, inter-thread interferences lower the efficiency of RRF badly, exacerbating the pressure on RRF design. We propose thread-Sensitive Register Renaming (TSRR), which tracks the performance variations and dynamically tunes the amount of rename registers available to each thread. In contrast to the traditional fully-shared RRF this partly-shared scheme of TSRR guarantees (1) each thread has opportunities to fully exhibit its performance potential, (2) each thread can occupy just a reasonable number of rename registers, eliminating harmful inter-thread conflicts, and (3) the poorest-performance thread neither hinder other threads nor starve itself.
the international Workshop on Embedded HPC Systems and applications (EHPC) is a forum for the presentation and discussion of approaches, research findings, and experiences in the applications of High Performance Compu...
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the use of distributedcomputing architectures has become commonplace in complex embedded systems with potential advantages, for example, in terms of scalability, dependability and maintainability. One particular area...
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ISBN:
(纸本)9780780394018
the use of distributedcomputing architectures has become commonplace in complex embedded systems with potential advantages, for example, in terms of scalability, dependability and maintainability. One particular area in which that trend can be witnessed is mobile autonomous robotics in which several sensors and actuators are interconnected by means of a control network. In this paper we address one case study concerning the CAMBADA robots that were developed at the University of Aveiro for the Robocup Middle Size League. these robots have a distributed architecture with two layers, a coordination layer responsible for the global behaviors and a distributed sensing and actuating layer that conveys internal state information and executes coordination commands. this paper focuses on the latter layer, which is based on the FTT-CAN protocol, following a network-centric approach that provides an efficient framework for the synchronization of all systems activities. We describe the computing and communication requirements, the robot architecture, the system design and implementation, and finally we provide experimental results that show advantages with respect to a non-synchronized distributed approach.
this paper presents a compile-time placement method of mobile relational operators MROs in a large scale environment. MROs are self adaptive to changing run-time conditions by deciding their execution place if they di...
ISBN:
(纸本)9780769530499
this paper presents a compile-time placement method of mobile relational operators MROs in a large scale environment. MROs are self adaptive to changing run-time conditions by deciding their execution place if they discover compile-time estimation errors. Proposed placement methods tend to have a main drawback with MROs running over a large scale environment: their focus is on finding optimal performance depending on single-point estimation at compile-time, instead of optimal performance over an estimation interval. We propose: (i) to determine the migration space of a MRO including the sites on which the MRO is allowed to migrate during its execution, and (ii) to find the robust site which will allow acceptable response time in an estimation interval. Performance study shows that, with a risk of loosing around 6% in response time, it is possible to gain tip to 300% withthe proposed robust placement.
In recent years, the technological advancements have led to a deluge of data from distinctive domains and the need for development of solutions based on parallel and distributedcomputing has still long way to go. tha...
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ISBN:
(纸本)9789811015366;9789811015359
In recent years, the technological advancements have led to a deluge of data from distinctive domains and the need for development of solutions based on parallel and distributedcomputing has still long way to go. that is why, the research and development of massive computing frameworks is continuously growing. At this particular stage, highlighting a potential research area along with key insights could be an asset for researchers in the field. therefore, this paper explores one of the emerging distributedcomputing frameworks, Apache Hama. It is a Top Level Project under the Apache Software Foundation, based on bulk synchronous parallel model. We present an unbiased and critical interrogation session about Apache Hama and conclude research directions in order to assist interested researchers.
the paper describes the experimental library SSCC_PIPL for image processing on multicomputers. Basic principles of library building, some architectural solutions, and test results are given.
ISBN:
(纸本)9783642032745
the paper describes the experimental library SSCC_PIPL for image processing on multicomputers. Basic principles of library building, some architectural solutions, and test results are given.
the existing set of Peer-to-Peer (P2P) digital repositories were not originally and purposely designed for sharing learning content, and as such are not well suited in the same way that centralized repositories are fo...
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ISBN:
(纸本)9781467394734
the existing set of Peer-to-Peer (P2P) digital repositories were not originally and purposely designed for sharing learning content, and as such are not well suited in the same way that centralized repositories are for the storing and retrieving of learning content for instructional use. this survey paper therefore reviews some P2P file-sharing and related eLearning technologies, to identify core reasons why there are no P2P eLearning Systems with features comparable to the ubiquitous client/server eLearning Systems. It concludes that P2P sharing of Reusable Learning Content requires a redesign in order to facilitate more comprehensive P2P eLearning Systems.
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