Parallel Processing System
Mostrando 1-12 de 64 artigos, teses e dissertações.
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1. Reduced-order strategy for meshless solution of plate bending problems with the generalized finite difference method
Abstract This paper presents some recent advances on the numerical solution of the classical Germain-Lagrange equation for plate bending of thin elastic plates. A meshless strategy using the Generalized Finite Difference Method (GFDM) is proposed upon substitution of the original fourth-order differential equation by a system composed of two second-order par
Lat. Am. j. solids struct.. Publicado em: 04/02/2019
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2. Geração de b-splines via FPGA / B-spline generation via FPGA
The b-splines are used in CAD/CAM/CAE systems to represent and define complex curves and surfaces, being adopted by the main computer graphics standards due to features like compact mathematic representation, flexibility and affine transformations. In 3D acquisition systems and integrated CAM-CNC systems, the use of the b-spline in the geometric information
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/08/2012
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3. What ethologically based models have taught us about the neural systems underlying fear and anxiety
Classical Pavlovian fear conditioning to painful stimuli has provided the generally accepted view of a core system centered in the central amygdala to organize fear responses. Ethologically based models using other sources of threat likely to be expected in a natural environment, such as predators or aggressive dominant conspecifics, have challenged this con
Brazilian Journal of Medical and Biological Research. Publicado em: 2012-04
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4. AVALIAÇÃO DE TARIFAS DE ENERGIA ELÉTRICA ATRAVÉS DAS VARIÁVEIS DUAIS DE MODELOS LINEARES - SIMULADOR DE DECISÕES MULTI - CONCESSIONÁRIAS / EVALUATION OF ELECTRICITY RATES THROUGH THE DUAL VARIABLES MODEL LINEAR - SIMULATOR FOR MAKING MULTI - CONCESSIONAIRES
The decision taking in multidivisional organization structures makes an apropriated scenario to the use of metodologies of parallelized mathematical programming. Because the characteristics of certain structures of block-angular models with a large number of variables and constraints, its possible to handle them using parallel processing algorithms. The mono
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/04/2011
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5. D-VisionDraughts: uma rede neural jogadora de damas que aprende por reforço em um ambiente de computação distribuída
The objetive of this work is to propose a draughts learning system, the D-VisionDraughts (Distributed VisionDraughts): a distributed draughts player agent based on neural networks that learns by reinforcement. The D-VisionDraughts is trained in a distributed processing environment in order to achieve a high level of play without expert game analysis and with
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/02/2011
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6. Constant Boundary Elements on graphics hardware: a GPU-CPU complementary implementation
Numerical simulation of engineering problems has reached such a large scale that the use of a parallel computing approach is required to obtain solutions within a reasonable time. Recent efforts have been made to implement these large scale computational tasks on general-purpose programmable graphics hardware (GPGPU). The Graphics Processing Unit (GPU) is sp
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-12
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7. Privacidade de localização geográfica em consultas a serviços públicos Web de localização: uma abordagem baseada em médias aleatórias
The increasing demand for Location-Based Services (LBSs) has increased the need for solutions that consider the privacy of queries in public LBSs. The currently proposed approaches rely mainly on the construction of an anonymizing spatial region (ASR) based on a rectangle containing a user consultant and at least other K−1 users, thereby setting a K le
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/08/2010
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8. TFPS : um sistema de pré-processamento de traces para auxiliar na visualização de programas paralelos / TFPS - a traces preprocessing system to aid in parallel programs visualization
O trabalho apresenta o projeto e o desenvolvimento de uma ferramenta para visualização lógica da execução de programas paralelos, a TFPS de Trace File Preprocessor System, cujo objetivo é a analise de desempenho de tais programas. 0 projeto é baseado no pré-processamento de arquivos de traces de execução dos programas. A idéia básica consiste em
Publicado em: 2010
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9. STOCHASTIC DYNAMIC PROGRAMMING AND CONVEX HULL ALGORITHM IN THE HYDROTHERMAL SYSTEMS OPERATION PLANNING / PROGRAMAÇÃO DINÂMICA ESTOCÁSTICA E ALGORITMO DE FECHOS CONVEXOS NO PLANEJAMENTO DA OPERAÇÃO DE SISTEMAS HIDROTÉRMICOS
This thesis presents a new approach for the expected-cost-to-go functions modeling used in the stochastic dynamic programming (SDP) algorithm. The proposed technique is applied to the long-term operation planning of electrical power systems. Using state space discretization, the convex hull algorithm is used for constructing a series of hyperplanes that comp
Publicado em: 2010
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10. A standards-based framework to foster geospatial data and process interoperability
The quest for interoperability is one of the main driving forces behind international organizations such as OGC and W3C. In parallel, a trend in systems design and development is to break down GIS functionalities into modules that can be composed in an ad hoc manner. This component-driven approach increases flexibility and extensibility. For scientists whose
Journal of the Brazilian Computer Society. Publicado em: 2009-03
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11. Uma ferramenta para monitoramento do sistema JoiN de processamento maciçamente paralelo virtual / A monitoring tool for the massively parallel virtual processing system JoiN
O gerenciamento e a utilização de ambientes de computação em grade requerem um grande esforço na obtenção das informações necessárias para a administração e para a identificação e resolução de problemas. Acompanhar o desempenho das aplicações, determinar a origem de problemas, identificar e eliminar gargalos são funções que requerem info
Publicado em: 2008
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12. Metodologia de teste para acelerar o desenvolvimento de sistemas de processamento paralelo. / Test methodology to accelerate the development of parallel processing system.
Due to the great competitiveness of the market, there is an increasing demand for the production of modern computational systems with more quality in less time (CALANTONE; BENEDETTO, 00). The development time of new versions at those systems is also critical, because better performance and more functionalities than in the current version are expected, and th
Publicado em: 2007