Hybrid MPI-Thread Implementation on a Cluster of SMP Nodes of a Parallel Simulator for the Propagation of Powdery Mildew in a Vineyard

  • Gaël Tessier
  • Jean Roman
  • Guillaume Latu
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4208)

Abstract

This paper describes a new hybrid MPI-thread implementation of a parallel simulator for the propagation of a parasite in a vineyard. The model also considers the structure, the growth and the susceptibility of the plant. Two spatial scales are distinguished for the dispersal of the fungus. A realistic discrete model was used for the local and neighbouring dispersal, and a stochastic model integrates distribution laws for the long-range dispersal over the parcel. An algorithmic description of the new parallel simulator is given and real life numerical experiments on an IBM SP5 are provided, using up to 128 processors.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Gaël Tessier
    • 1
  • Jean Roman
    • 1
  • Guillaume Latu
    • 2
  1. 1.INRIA Futurs and LaBRI UMR 5800, ScAlApplix projectUniversité Bordeaux 1 and ENSEIRBTalenceFrance
  2. 2.LSIIT UMR 7005Université Strasbourg 1IllkirchFrance

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