Basic Terms
Applies To: Windows Compute Cluster Server 2003
The following table contains a list of terms basic to an understanding of the topics that follow.
Term | Definition |
---|---|
Job |
A job is a resource request submitted to the Job Scheduler that contains or will contain one or more tasks. |
Task |
A task is the execution of a user application. A task cannot be run independently of a job. However, it is possible for a job to contain only a single task. |
Job Scheduler |
Job Scheduler is a service responsible for queuing jobs and tasks, allocating resources, dispatching the tasks to the compute nodes, and monitoring the status of the job, tasks, and nodes. |
Node |
A node is a single named host in the cluster. |
Processor |
A processor is an individual CPU on a node. Typically, a 64-bit node has two or more processors. A dual-core processor is usually considered two processors. |
Queue |
The queue is a list of jobs that have been submitted to Job Scheduler for execution by the cluster. The order of the jobs in the queue is determined by a set of scheduling policies. |
Task List |
The task list is the task equivalent of the queue for an individual job. The order of the tasks is first come, first served (FCFS) unless dependencies dictate otherwise. |