This is a study of the performance on different parallel machines of the solution to the system of linear equations that results from the finite-differencing of the neutron diffusion equation in the context of nuclear...
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In this paper, we characterize the degrees of freedom (DoF) for K-user M × 1 multiple-input single-output interference channels with reconfigurable antennas, which have N-preset modes at the receivers, assuming l...
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With recent improvements in single CPU performance, several issues become more important in multiprocessor design. Two of these are interprocessor communication and locality. In parallel systems with fast CPUs, locali...
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With recent improvements in single CPU performance, several issues become more important in multiprocessor design. Two of these are interprocessor communication and locality. In parallel systems with fast CPUs, locality is vital to performance. However, traditional parallel programming models such as shared memory or message passing do not naturally lead to programs that exhibit locality. In the paper, the Seamless model for interprocessor communication is presented which is based on locality and that allows the programmer to explicitly manipulate a program's locality to optimize performance. Additionally, this model can support latency tolerance with proper hardware support. Extensions to the C programming language that support this model are also presented. Finally, a parallel program utilizing this model is provided to illustrate the paradigm.< >
The design of a debugging and performance analysis system that includes a specification language for process-level events and hardware for nonintrusive identification of these events during the execution of parallel a...
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The design of a debugging and performance analysis system that includes a specification language for process-level events and hardware for nonintrusive identification of these events during the execution of parallel and distributed application for a nonshared memory system is presented. The design is based on a formal event/action model and a layered architecture model that have been previously presented. Background, related work, and specification, and identification of events are discussed.< >
In order to improve the efficiency of the communication networks, we used the Kruskal algorithm and the Prim algorithm through algorithm comparison and analysis methods of data structure. A dynamic framework for the c...
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A novel approach for visually specifying parallel/distributed software using extended Petri-nets (PNS) is investigated. The approach is demonstrated to be useful in the specification of decision-making activities that...
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A novel approach for visually specifying parallel/distributed software using extended Petri-nets (PNS) is investigated. The approach is demonstrated to be useful in the specification of decision-making activities that control distributed computing systems. PNs are employed because of their highly visual nature that can give insight into the nature of the controller of such a system and because of their well-known analytical properties. In order to increase the expressive power of PNs, the extension of transition enabling functions is used. The main focus is a set of automatic transformations derived to transform such an extended net into a basic PN. Then, well-known analytical methods can be used to investigate characteristic properties of the system and validate correct operation. A graphical programming tool (XPAT) has been built to automate the visual programming process as well as the transformations.< >
Addresses the problem of creating software tools for visualizing the dynamic behavior of parallel applications and systems. PARADISE (parallel Animated Debugging and Simulation Environment) approaches this problem by ...
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Addresses the problem of creating software tools for visualizing the dynamic behavior of parallel applications and systems. PARADISE (parallel Animated Debugging and Simulation Environment) approaches this problem by providing a meta-tool environment for generating custom visual analysis tools. PARADISE is a meta-tool because it is a tool which is utilized to create other tools. The authors focus on the user's view of the use of PARADISE for constructing tools which analyze the interaction between parallel systems and parallel applications. An example of its use, involving the PASM parallelprocessing System, is given.< >
A runtime system for implementation of image processing operations is presented. It is designed for working in a flexible and distributed environment related to the software architecture of a newly developed UAV syste...
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The debugging and testing of commercial software constitutes a substantial portion of the development time and, by most estimates, over fifty percent of the overall cost of software development. For critical applicati...
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Zeroing neurodynamics methodology,which dedicates to finding equilibrium points of equations,has been proven to be a powerful tool in the online solving of problems with considerable *** this paper,a method for underw...
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Zeroing neurodynamics methodology,which dedicates to finding equilibrium points of equations,has been proven to be a powerful tool in the online solving of problems with considerable *** this paper,a method for underwater acoustic sensor network(UASN)localisation is proposed based on zeroing neurodynamics methodology to preferably locate moving underwater nodes.A zeroing neurodynamics model specifically designed for UASN localisation is constructed with rigorous theoretical analyses of its *** proposed zeroing neurodynamics model is compatible with some localisation algorithms,which can be utilised to eliminate error in non‐ideal situations,thus further improving its ***,the effectiveness and compatibility of the proposed zeroing neurodynamics model are substantiated by examples and computer simulations.
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