Chapter

Grid Computing

pp 13-24

From Orc Models To Distributed Grid Java Code

  • Marco AldinucciAffiliated withComputer Science Department, University of Pisa
  • , Marco DaneluttoAffiliated withComputer Science Department, University of Pisa
  • , Peter KilpatrickAffiliated withSchool ofComputer Science, Queen'sUniversity ofBelfast
  • , Patrizio DazziAffiliated withISTI/CNR

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We present O2J, a Java library that allows implementation of Orc programs on distributed architectures including grids and clusters/networks of workstations. With minimal programming effort the grid programmer may implement Orc programs, as he/she is not required to write any low level code relating to distributed orchestration of the computation but only that required to implement Orc expressions. Using the prototype O2J implementation, grid application developers can reason about abstract grid orchestration code described inOrc. Once the required orchestration has been determined and its properties analysed, a grid application prototype can be simply, efficiently and quickly implemented by taking the Orc code, rewriting it into corresponding Java/O2J syntax and finally providing the functional code implementing the sites and processes involved. The proposed modus operandi brings aModel Driven Engineering approach to grid application development.

Keywords

Grid orchestration model-driven engineering distributed computing