A distributed object is a reusable, self-contained piece of software that cooperates with other objects on the same machine or across a network in a plug-and-play fashion via a well-defined interface. The Numerical Propulsion System Simulation (NPSS) attempts to provide a collaborative aircraft engine design and simulation environment based on this concept. Many scientific applications in aerodynamics and solid mechanics are written in Fortran. Refitting these legacy Fortran codes with distributed objects can increase the code reusability. The remote variable scheme provided in NPSS helps programmers easily migrate the Fortran codes towards a client-server platform. This scheme gives the client the capability of accessing the variables at the server site. Through the operator overloading features in C++, remote variables can be used in much the same way as traditional variables. The remote variable scheme adopts the lazy update approach and the prefetch method. Preliminary performance evaluation shows that communication overhead can be greatly reduced.


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    Title :

    CORBA wrapping of legacy scientific applications using remote variable scheme


    Contributors:
    Sang, Janche (author) / Follen, G. (author) / Chan Kim (author) / Lopez, I. (author) / Townsend, S. (author)


    Publication date :

    2001


    Size :

    8 Seiten, 20 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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