Improvements in computer and networking technologies over the past decades produced new type of collaborative computing environment called Gild Networks. Grid is a parallel and distributedcomputing network system tha...
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ISBN:
(纸本)9781424419678
Improvements in computer and networking technologies over the past decades produced new type of collaborative computing environment called Gild Networks. Grid is a parallel and distributedcomputing network system that provides the ability to perform higher throughput computing by taking advantage of many computing resources available in the network. therefore, to achieve a scalable and reliable Grid network system, we need to efficiently distribute the load among the resources accessible on the network. In this paper, we present a distributed and scalable load-balancing framework for Gild Networks. the generated network system is self-organized and depends only on local information for load distribution and resource discovery. Simulation results show that the generated network system provides an effective, scalable, and reliable load-balancing scheme for the distributed resources accessible on Grid networks.
the proceedings contain 12 papers. the topics discussed include: adaptive self-management of teams of autonomous vehicles;a proxy-based model for service provision in opportunistic networks;reactive queries in mobile ...
ISBN:
(纸本)9781605583648
the proceedings contain 12 papers. the topics discussed include: adaptive self-management of teams of autonomous vehicles;a proxy-based model for service provision in opportunistic networks;reactive queries in mobile ad hoc networks;deontic logic for modeling data flow and use compliance;SPADE - scheduler for parallel and distributed execution form mobile devices;on the integration of context-based heterogeneous middleware for ubiquitous computing;a middleware for service-oriented communication in mobile disaster response environments;middleware for ubiquitous context awareness;ambient transactors;a reflective context-aware system for spatial routing applications;clustered publish/subscribe in wireless actuator and sensor networks;and a strategy for cooperative reasoning in ubiquitous computing environments.
the principles of decision-analytic decision support, implemented in GeNIe (Graphical Network Interface) and SMILE (Structural Modeling, Inference, and Learning Engine) can be applied in practical decision support sys...
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ISBN:
(纸本)9780769532639
the principles of decision-analytic decision support, implemented in GeNIe (Graphical Network Interface) and SMILE (Structural Modeling, Inference, and Learning Engine) can be applied in practical decision support systems (DSSs). GeNIe plays the role of a development environment and SMILE plays the role of a reasoning engine. A decision support system based on SMILE can be equipped with a customized user interface. GeNIe's name and its uncommon capitalization originate from the name Graphical Network Interface, given to the original simple interface to SMILE which is a library of functions for graphical probabilistic and decision-theoretic models. GeNIe only runs under one of the most popular computing platform,: the Windows operating systems, which makes it not easily portable. GeNIe is therefore limited in its graphical representation across multiple system platforms. this paper is composed of two parts. the first part discusses a development environment for building graphical decision-theoretic models, an influence diagram, on a website by using an newly developed engine called "SMLE". the second part of the paper discusses the visualization of SMILE decision-theoretic models on a website using Flash technologies.
the paper compares the efficiency of several metaheuristics for solving the travelling salesman problem. parallel computational models are suggested for ant colony optimization, simulated annealing and genetic algorit...
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ISBN:
(纸本)9789549641523
the paper compares the efficiency of several metaheuristics for solving the travelling salesman problem. parallel computational models are suggested for ant colony optimization, simulated annealing and genetic algorithm. the models utilize multiple independent runs on multicomputer platform. the performance parameters and parallelism profiling of the metaheuristics are made based on hybrid (MPI+OpenMP) implementations of the suggested models for solving several instances of TSP from the TSPLIB.
the paper suggests simulation models of concurrency control of global transactions in distributed Database Management Systems. We consider mainly concurrency control according to the method of Two-phase locking (2PL)....
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ISBN:
(纸本)9789549641523
the paper suggests simulation models of concurrency control of global transactions in distributed Database Management Systems. We consider mainly concurrency control according to the method of Two-phase locking (2PL). We present simulation models of 2PL in distributed databases (DDB), which are developed in the environment for imitation modeling GPSS World. Queuing systems models modeling the execution of 2PL in DDB with Data replication are presented: centralized 2PL, primary copy 2PL and distributed 2PL. Some results of the simulations of 2PL in DDB are presented.
the proceedings contain 160 papers. the topics discussed include: managing quality level for developing information security systems adopting QFD;multidisciplinary design approach using repetitive response surface enh...
ISBN:
(纸本)9780769532639
the proceedings contain 160 papers. the topics discussed include: managing quality level for developing information security systems adopting QFD;multidisciplinary design approach using repetitive response surface enhancement and global optimization;neural net water level trend prediction and dynamic water level sampling frequency;a tabu search and ant colony system approach for the capacitated location-routing problem;an adaptive performance management method for failure detection;new approaches for software watermarking by register allocation;placing a liaison between two members of the same level in an organization structure of a complete binary tree;study on ontology partition based on ant colony algorithm;the complexity of the evolution of graph labelings;the complexity of the grid wireless mobility model;and a comparison of iterative repair strategies for earth observing satellites imaging scheduling.
this paper presents a fast preemptive list heuristic scheduling algorithm, called the Fast Preemptive Scheduling Algorithm (FPS), for both homogeneous and heterogeneous distributed memory systems. Time complexity of F...
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ISBN:
(纸本)9780769532639
this paper presents a fast preemptive list heuristic scheduling algorithm, called the Fast Preemptive Scheduling Algorithm (FPS), for both homogeneous and heterogeneous distributed memory systems. Time complexity of FPS is just O(vertical bar V vertical bar * (log vertical bar V vertical bar + log vertical bar P vertical bar) + vertical bar E vertical bar). Such an algorithm is useful during the compilation of the parallelapplications. A preemptive schedule can better utilize the resources and offers a lot of flexibility. In order to schedule tasks, FPS simulates preemptive task execution at a very low overhead and requires very little runtime support. the experimental results show that, the scheduling cost of FPS is lower than that of other well known non-preemptive and preemptive list heuristic scheduling algorithms for both homogeneous and heterogeneous systems. Also the scheduling performance of FPS is same or better than that of those algorithms.
In this paper simulation and analytical results for delay bounding and buffer size in switched Ethernet network are presented. Most of the calculations are made for the environment of distributed Automation Systems wh...
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ISBN:
(纸本)9789549641523
In this paper simulation and analytical results for delay bounding and buffer size in switched Ethernet network are presented. Most of the calculations are made for the environment of distributed Automation Systems where timing constraints are important. the traffic for the tests is from combined type - periodic constant bit rate and stochastic with Poisson distribution. the traffic mixture is made out of four different workloads mapped to the standard communication scenarios in distributed embedded systems environment. the prioritization schemes are mapped to the 802.1p traffic types. the analytical results are made using Network Calculus. the simulation is made using Network Simulator (NS).
Cooperation and parallelism are means for increasing efficiency of search. However, these aspects become a downside, when do not use good strategy for cooperation and parallelism so that to remedy this. We propose to ...
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ISBN:
(纸本)9780769532639
Cooperation and parallelism are means for increasing efficiency of search. However, these aspects become a downside, when do not use good strategy for cooperation and parallelism so that to remedy this. We propose to take these aspects into account by studying, choice of the strategy of cooperation and parallelism. Firstly, In this paper, we present a new algorithm specifically designed for solving distributed Constraint Satisfaction Problems (DisCSPs), and based on these concepts. then, we prove the soundness and completeness of this method, give some experimental results, and evaluate our method against existing methods. Secondly, we argue the possibility of extension of this mechanism to another model.
Providing single system image (SSI) on clusters has ever been one of the hot topics in the research field of parallel computer architecture, since SSI supports easier programming and administration on clusters. Curren...
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ISBN:
(纸本)9781424441983
Providing single system image (SSI) on clusters has ever been one of the hot topics in the research field of parallel computer architecture, since SSI supports easier programming and administration on clusters. Currently, most SSI studies focus on the middleware level of clusters, leading to some problems of poor transparence, low performance and so on. this paper presents a novel solution to provide SSI on clusters using a distributed virtual machine monitor (DVMM) with hardware-assisted virtualization technologies. the DVMM contains some symmetrical and cooperative VMMs distributed on multi-node. the cooperation among the VMMs virtualizes the distributed hardware resources to support SSI on a cluster. thus, the DVMM can support an unmodified legacy operating system (OS) to run transparently on a cluster. Compared withthe related work, our solution has some advantages of good transparence, high performance and easy implementation.
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