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CCGRID
2005
IEEE

Task scheduling strategies for workflow-based applications in grids

12 years 5 months ago
Task scheduling strategies for workflow-based applications in grids
Grid applications require allocating a large number of heterogeneous tasks to distributed resources. A good allocation is critical for efficient execution. However, many existing grid toolkits use matchmaking strategies that do not consider overall efficiency for the set of tasks to be run. We identify two families of resource allocation algorithms: task-based algorithms, that greedily allocate tasks to resources, and workflow-based algorithms, that search for an efficient allocation for the entire workflow. We compare the behavior of workflow-based algorithms and task-based algorithms, using simulations of workflows drawn from a real application and with varying ratios of computation cost to data transfer cost. We observe that workflow-based approaches have a potential to work better for data-intensive applications even when estimates about future tasks are inaccurate.
James Blythe, S. Jain, Ewa Deelman, Yolanda Gil, K
Added 24 Jun 2010
Updated 24 Jun 2010
Type Conference
Year 2005
Where CCGRID
Authors James Blythe, S. Jain, Ewa Deelman, Yolanda Gil, Karan Vahi, Anirban Mandal, Ken Kennedy
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