Scheduling configuration

Changing the session scheduling interval
The frequency at which the scheduler reassesses resource assignments between sessions is called the scheduling interval.
Specifying criteria for resource selection
When you put your application on the grid in IBM® Spectrum Symphony, you specify a resource requirement string in the application profile to set criteria for selecting a resource or restricting which resources are available to the application.
How resources are scheduled by the session manager
IBM Spectrum Symphony supports several session scheduling policies.
Maintaining data affinity between a session and service instances
Use the minimum services (R_MinimumServices) scheduling policy when you are using common data. Service instances will be reused for tasks in the same session, eliminating the need to reload data for each task. This process allows IBM Spectrum Symphony to maintain data affinity between the session and the service.
Prioritizing sessions for time-critical workload
The session manager provides a priority scheduling policy where all resources are assigned to the highest priority session before lesser priority sessions. If the highest priority session cannot make use of all of the resources, any unused resources are assigned to the next highest priority session. This cycle repeats to the next highest priority session, and so on. If there are still some slots remaining after all the sessions are satisfied, these slots are not assigned to any session.

Parent topic: Application deployment and management