Sources of Complexity in Grid Resource Management
- No single adminstrative control
- No single policy
- each resource owners have their own policies or scheduling mechanisms.
- Users must honor them (particularly external users of the grid).
- Heterogenity of resources (static and dynamic)
- Unreliable - resource may come or disappear (die)
- No single cost model (it cannot be)
- varies from one user to another and time to time.
- No Single access mechanism