In this paper, we propose a distributed algorithm to process conjunctive queries in P2P DHTs. The basic idea of the proposed scheme is to cache the search result for past conjunctive queries, and to use them to improv...
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In this paper, we have developed a two-dimensional (2D) chaos-based encryption scheme that can be applied to electroencephalography (EEG) signals, and mobile telemedicine. Compared with the one-dimensional (1D) chaos-...
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An implementation method of parallel finite element computation based on overlapping domain decomposition was presented to improve the parallel computing efficiency of finite element and lower the cost and difficulty ...
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ISBN:
(纸本)9783642118418
An implementation method of parallel finite element computation based on overlapping domain decomposition was presented to improve the parallel computing efficiency of finite element and lower the cost and difficulty of parallel programming. By secondary processing the nodal partition obtained by using Metis, the overlapping domain decomposition of finite element mesh was gotten. Through the redundancy computation of overlapping element, finite element governing equations could be parallel formed independently. And the uniform distributed block storage could be achieved conveniently. The interface to the DMSR data format was developed to meet the need of Aztec parallel solution. And the solver called the iterative solving subroutine of Aztec directly. This implementation method reduced the change of the existed serial program to a great extent. So the main frame of finite element computation was kept. Tests show that this method can achieve high parallel computing efficiency.
The proceedings contain 93 papers. The topics discussed include: earliest start time estimation for advance reservation-based resource brokering within computational grids;a web-based parallel file transferring system...
ISBN:
(纸本)9780769541907
The proceedings contain 93 papers. The topics discussed include: earliest start time estimation for advance reservation-based resource brokering within computational grids;a web-based parallel file transferring system on grid and cloud environments;scalable hierarchical scheduling for multiprocessor systems using adaptive feedback-driven policies;parallel numerical computing of finite element model of conductors and floating potentials;energy-efficient sink location service protocol to support mobile sinks in wireless sensor networks;depth balancing and multipath transmission algorithms for P2P streaming media using PeerCast;direct mapping OFDM-based transmission scheme for underwater acoustic multimedia;experimental analysis of coordination strategies to support wireless sensor networks composed by static ground sensors and UAV-carried sensors;and implement a RFID-based indoor location sensing system using virtual signal mechanism.
The proceedings contain 30 papers. The topics discussed include: flexible error protection for energy efficient reliable architectures;characterizing energy consumption in hardware transactional memory systems;perform...
ISBN:
(纸本)9780769542164
The proceedings contain 30 papers. The topics discussed include: flexible error protection for energy efficient reliable architectures;characterizing energy consumption in hardware transactional memory systems;performance debugging of GPGPU applications with the divergence map;mixed-precision parallel linear programming solver;mapping pipelined applications with replication to increase throughput and reliability;improving in-memory column-store database predicate evaluation performance on multi-core systems;a comparative analysis of load balancing algorithms applied to a weather forecast model;sharing resources for performance and energy optimization of concurrent streaming applications;a cache replacement policy using adaptive insertion and re-reference prediction;the dynamic block remapping cache;towards a peer-to-peer framework for parallel anddistributed computing;and on the worst case of scheduling with task replication on computational grids.
To design parallel numerical algorithms on large scale distributed and heterogeneous platforms, the asynchronous iteration model (AIAC) may be an efficient solution. This class of algorithm is very suitable since it e...
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In this study, nanoscaled lamellar surface structures were prepared on medical stainless steel by chemical etching of the decomposed phases and their effect on the morphology of osteoblastic cells was investigated usi...
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ISBN:
(纸本)0878492941
In this study, nanoscaled lamellar surface structures were prepared on medical stainless steel by chemical etching of the decomposed phases and their effect on the morphology of osteoblastic cells was investigated using Field Emission Scanning Electron Microscopy. Long filopodia were grown from the cells perpendicular to the lamellar structure while almost no or only short filopodia are formed parallel to the lamellae. The results are explained by a different surface roughness parallel and perpendicular to the lamellae During the growth process of the filopodia a nearly flat surface is recognized parallel to the lamellae while a topographical change is sensed perpendicular to the structure, which is preferred by the cells
In this paper, we propose a clustering scheme for unstructured P2Ps based on the notion of "tit-for-tat" strategy. The proposed scheme is a combination of an identification of critical links, local reconfigu...
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PeerCast is a classical software of P2P streaming media. In this paper, an NS2-based PeerCast network simulation system was constructed for simulating the PeerCast protocol. Then we found two shortcomings of the PeerC...
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The main purpose of this paper is to demonstrate how we make use of the powerful graphics processor, NVIDIA GTX280, in numerical simulation with the support of double precision floating number. Apply the finite volume...
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