A. C. Barbosa

Publications (1)0.64 Total impact

• Source

  Available from: Fabio Machado Porto

  Article: An adaptive parallel query processing middleware for the grid

  V. F. V. da Silva, M. L. Dutra, Fabio Porto, B. Schulze, A. C. Barbosa, J. C. de Oliveira
  [show abstract] [hide abstract]
  ABSTRACT: Grid services provide an important abstract layer on top of heterogeneous components (hardware and software) that take part in a Grid environment. In this scenario, applications such as scientific visualization require access to data of non-conventional data types, such as fluid path geometry, and the evaluation of special user programs and algebraic operators, such as spatial hash-join, on these data. In order to support such applications we are developing a Configurable Data Integration Middleware System for the Grid (CoDIMS-G). CoDIMS-G provides a query execution environment adapted to the heterogeneity and variations found in a Grid environment by offering a node scheduling algorithm and an adaptive query execution strategy. The latter both adapts to performance variations in a scheduled node and deals efficiently with repetitive evaluation of a query execution plan fragment, as needed for computing a particle's, trajectory. Copyright © 2005 John Wiley & Sons, Ltd.
  Concurrency and Computation Practice and Experience 04/2006; · 0.64 Impact Factor