Gridbus Workflow Enactment Engine - Grid Computing: Infrastructure, Service, and Applications - page 116

Gridbus Workfl ow Enactment Engine
Jia Yu and Rajkumar Buyya
CONTENTS
5.1 Introduction .................................................................................. 120
5.2 Architecture .................................................................................. 121
5.3 Workl ow Execution Management ............................................ 122
5.3.1 Communication Approach ............................................... 123
5.3.2 State Transition ................................................................... 124
5.3.3 Interaction ........................................................................... 125
5.4 Service Discovery ......................................................................... 126
5.5 Workl ow Language .................................................................... 128
5.5.1 Tasks ..................................................................................... 129
5.5.2 Data Dependencies ............................................................ 131
5.6 Parameterization .......................................................................... 132
5.7 I/O Models .................................................................................... 132
5.8 Fault Handling ............................................................................. 134
5.9 Implementation ............................................................................ 134
5.9.1 Design Diagram .................................................................. 134
5.9.2 Event Messages ................................................................... 135
5.10 A Case Study in fMRI Data Analysis ........................................ 136
5.10.1 Population-Based Atlas Workl ow ................................. 136
5.10.2 Experiment ........................................................................ 138
5.11 Related Work ................................................................................. 142
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