gLite Workload Management
The core of gLite is the workload management system (WMS)
for submitting jobs into the grid.
By the WMS, a job runs through the following States:
- UI submits description of job to RB: SUBMITTED.
Input sandbox: program plus input files.
- RB determines CE to execute job: WAITING.
- RB prepares job for execution: READY.
- RB passes job to CE: SCHEDULED.
CE fails to execute job: ABORTED.
- CE starts execution of job: RUNNING.
- CE returns result of job to RB: DONE.
Output sandbox: set of (small) output files.
Large outputs: data management services.
- UI retrieves result from RB: CLEARED.
At any time, the UI may query the LB for the current status of the
job.
UI: user interface.
RB: resource broker.
CE: computing element.
LB: logging and bookkeping server.
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