The use of Java for parallel programming on clusters relies on the need of efficient communication middleware and high-speed cluster interconnect support. Nevertheless, currently there are no solutions that fully fulf...
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We consider storage in an extremely large-scale distributed computer system designed for stream processing applications. In such systems, incoming data and intermediate results may need to be stored to enable future a...
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The intrinsic independent features of the optimal codebook cubes searching process in fractal video compression systems are examined and exploited. The design of a suitable parallel algorithm reflecting the concept is...
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The intrinsic independent features of the optimal codebook cubes searching process in fractal video compression systems are examined and exploited. The design of a suitable parallel algorithm reflecting the concept is presented. The Message Passing Interface ( MPI) is chosen to be the communication tool for the implementation of the parallel algorithm on distributed memory parallel computers. Experimental results show that the parallel algorithm is able to reduce the compression time and achieve a high speed-up without changing the compression ratio and the quality of the decompressed image. A scalability test was also performed, and the results show that this parallel algorithm is scalable.
Recently superpeers are introduced to improve the performance of P2P systems. A superpeer is a node in a P2P system that operates as a server for a set of clients. By exploiting heterogeneity, the superpeer paradigm a...
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ISBN:
(纸本)9783540747413
Recently superpeers are introduced to improve the performance of P2P systems. A superpeer is a node in a P2P system that operates as a server for a set of clients. By exploiting heterogeneity, the superpeer paradigm allows P2P systems to run more efficiently. This paper proposes a hierarchy-adaptive P2P topology DAHP2P and a hierarchical routing, algorithm Hroute. Peers are grouped into clusters according to proximity and super peers form the upper-level overlay, the number of hierarchy is self-adaptively changed according to the number of nodes in the system, a hierarchical routing algorithm is designed to reduce the routing hops. Simulation results show that Hroute can significantly reduce the expected number of hops and latency of message routing, and loads of peers at different layers are relatively balanceable.
Modern grids have become very complex by their size and their heterogeneity. It makes the deployment and maintenance of systems a difficult task requiring lots of efforts from administrators and programmers. Our goal ...
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We propose to address collective communications in distributed components through collective interfaces. Collective interfaces handle data distribution, parallelism and synchronization, and they expose collective beha...
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ISBN:
(纸本)9780769528335
We propose to address collective communications in distributed components through collective interfaces. Collective interfaces handle data distribution, parallelism and synchronization, and they expose collective behaviors in the definition of components. We show, as an illustration, that collective interfaces allow the encoding of SPMD programming in a better structured and less error prone ways We verify the scalability and performance of collective interfaces in an experiment on up to 100 machines.
In this paper, we review two existing static load balancing schemes based on M/M/1 queues. We then use these schemes to propose two dynamic load balancing schemes for multi-user (multi-class) jobs in heterogeneous dis...
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This paper presents a performance model of Many-to-One collective communications for MPI platforms on a switched Ethernet network. The model is based on empirical findings from observation of Many-to-One operations ov...
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Grid is a computational environment in which applications can use multiple distributed computational resources in a safe, coordinated, efficient and transparent way. Data Integration Middleware systems (DIMS) are orig...
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Deterministic behaviour is a prerequisite for most approaches to object replication. In order to avoid the non-determinism of multithreading, many object replication systems are limited to using sequential method exec...
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