NDLI: A manufacturing capacity planning experiment through functional workload decomposition

Content Provider	ACM Digital Library
Author	Lee, T. P.
Abstract	In this paper, we describe an experiment to evaluate a distributed architecture via functional database workload decomposition. A workload in a circuit pack assembly environment was decomposed and mapped onto a frontend/backend distributed computer architecture. To evaluate this distributed architecture, an operational model for capacity planning was devised, and performance and cost-effectiveness measures were chosen. Model parameters were estimated through benchmark experiments in a distributed system consisting of various super-microcomputers connected by a CSMA/CD local area network with INGRES as the database management system.The frontend/backend architecture consists of a backend data repository and analysis computer system and a few frontend computer systems dedicated for data collection and manufacturing process verification. Because of the significant software overhead in communication protocol and database processing, information exchange was batched between the backend and frontend systems to amortize such cost to improve overall system performance.Results of the experiments were analyzed to gain quantitative insight on the feasibility of such decomposition and its mapping onto the proposed architecture. With sufficient batching, the proposed distributed architecture not only has more overall system capacity, but also is more cost-effective than the typical centralized architecture. The approach described is applicable in more general contexts. Advantages of such distributed systems include the relative robustness of the distributed architecture under single point failure mode and the ease of capacity growth by upgrading the computer systems and/or by increasing the number of frontend systems.
Starting Page	141
Ending Page	150
Page Count	10
File Format	PDF
ISSN	01635999
DOI	10.1145/1007771.55612
Journal	ACM SIGMETRICS Performance Evaluation Review (PERV)
Volume Number	16
Issue Number	1
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2014-01-10
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Hardware and Architecture Software

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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