Pilot job
Encyclopedia
In computer science
Computer science
Computer science or computing science is the study of the theoretical foundations of information and computation and of practical techniques for their implementation and application in computer systems...

, a pilot job is a type of multilevel scheduling, in which a resource is acquired by an application so that the application can schedule work into that resource directly, rather than going through a local job scheduler, which might lead to queue waits for each work unit. This term comes from the Condor High-Throughput Computing System, in which Condor GlideIns provides this functionality. Other examples of pilot jobs are: the BigJob implemented in SAGA, Swift Coasters as part of the Swift parallel scripting system, and the Falkon lightweight task execution framework.

Pilot jobs are most often used on systems that have queues, as part of their purpose is, in some sense, to avoid multiple waits in these queues. These are most often found in parallel computing
Parallel computing
Parallel computing is a form of computation in which many calculations are carried out simultaneously, operating on the principle that large problems can often be divided into smaller ones, which are then solved concurrently . There are several different forms of parallel computing: bit-level,...

 systems, but pilot jobs are usually part of a distributed application
Distributed application
-Introduction:Where classic software systems of the past century were mostly based on Client–server models and Client-centric application development, both ultimately run on one single computer, be it the client computer or the server....

, and are many times associated with Many-task computing
Many-task computing
Many-task computing aims to bridge the gap between two computing paradigms, high throughput computing and high-performance computing .-Definition:...

.

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