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Batch Scheduling a Fresh ApproachThe Network Queueing System (NQS) was designed to schedule jobs based on limits within queues. As systems obtain more memory, the number of queues increased to take advantage of the added memory resource. The problem now becomes too many queues. Having a large number of queues provides users with the capability to gain an unfair advantage over other users by tailoring their job to fit in an empty queue. Additionally, the large number of queues becomes confusing to the user community. The High Speed Processors group at the Numerical Aerodynamics Simulation (NAS) Facility at NASA Ames Research Center developed a new approach to batch job scheduling. This new method reduces the number of queues required by eliminating the need for queues based on resource limits. The scheduler examines each request for necessary resources before initiating the job. Also additional user limits at the complex level were added to provide a fairness to all users. Additional tools which include user job reordering are under development to work with the new scheduler. This paper discusses the objectives, design and implementation results of this new scheduler
Document ID
20020006944
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Cardo, Nicholas P.
(NASA Ames Research Center Moffett Field, CA United States)
Woodrow, Thomas
Date Acquired
August 20, 2013
Publication Date
January 1, 1994
Subject Category
Administration And Management
Meeting Information
Meeting: Cray User Group
Location: Denver, CO
Country: United States
Start Date: March 13, 1995
End Date: March 17, 1995
Funding Number(s)
PROJECT: RTOP 536-01-11
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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