Communications of the ACM
MPI-The Complete Reference, Volume 1: The MPI Core
MPI-The Complete Reference, Volume 1: The MPI Core
A taxonomy and survey of grid resource management systems for distributed computing
Software—Practice & Experience
Workflow enactment with continuation and future objects
OOPSLA '02 Proceedings of the 17th ACM SIGPLAN conference on Object-oriented programming, systems, languages, and applications
Activity Pre-Scheduling in Grid Workflows
PDP '07 Proceedings of the 15th Euromicro International Conference on Parallel, Distributed and Network-Based Processing
Workflow fine-grained concurrency with automatic continuation
IPDPS'06 Proceedings of the 20th international conference on Parallel and distributed processing
An economy-driven mapping heuristic for hierarchical master-slave applications in grid systems
IPDPS'06 Proceedings of the 20th international conference on Parallel and distributed processing
First class futures: specification and implementation of update strategies
Euro-Par 2010 Proceedings of the 2010 conference on Parallel processing
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The capability to support resource sharing between different organizations and high-level performance are noteworthy features of grid computing. Applications require significant design effort and complex coordination of resources to define, deploy and execute components on heterogeneous and often unknown resources. A common trend today aims at diffusing workflow management techniques to reduce the complexity of grid systems through model-driven approaches that significantly simplify application design through the composition of distributed services often belonging to different organizations. With this approach, the adoption of efficient workflow enactors becomes a key aspect to improve efficiency through run-time optimizations, so reducing the burden for the developer, who is only responsible of defining the functional aspects of complex applications since he/she has only to identify the activities that characterize the application and the causal relationships among them. This paper focuses on performance improvements of grid workflows by presenting a new pattern for workflow design that ensures activity pre-scheduling at run-time through a technique that generates fine-grained concurrency with a couple of concepts: asynchronous invocation of services and continuation of execution. The technique is implemented in a workflow enactment service that dynamically optimizes process execution with a very limited effort for application developer.