id: 05785097
dt: j
an: 05785097
au: Berger, Maximilian; Fahringer, Thomas
ti: Practical experience from porting and executing the Wien2k application on
    the EGEE production grid infrastructure.
so: J. Grid Comput. 8, No. 2, 261-279 (2010).
py: 2010
pu: Springer, Dordrecht
la: EN
cc: 
ut: grid; workflow; Wien2k; worker; pilot
ci: 
li: doi:10.1007/s10723-010-9156-x
ab: Summary: While the Grid promises to deliver a large number of computation
    nodes to a user, this computation power is not usable without the
    proper adaption of the application for the Grid. In this paper, we
    describe the methods used to port and execute a particular application,
    Wien2k, on the EGEE production Grid. First, the process of porting the
    application is described. Then, we investigate the measures necessary
    to execute the application in this production Grid environment
    efficiently. Although the focus is on this special application, we
    describe generic methods which can be applied to all applications. We
    specifically address: Creating a workflow from an application and
    mapping this workflow to a Grid workflow using the activity attraction
    pattern. We discuss workflow engines which support cycles in their
    application workflow. We investigate naïve and worker scheduling
    techniques. A short introduction into licensing on the Grid is given.
    Optimisation techniques such as deployment re-use are discussed.
    Different data transfer mechanisms, centralised data transfer, data
    re-use, storage element data transfer, and peer-to-peer data transfer
    are compared. The paper is concluded with suggestions for further
    workflow porting.
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