Availability analysis of a N modules parallel system with common memory,central controller and distributed software |
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Authors: | Fabrizio Lombardi |
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Affiliation: | TEXAS TECH UNIVERSITY Department of Electrical Engineering, Computer Science Division, P.O. Box 4439, LUBBOCK, Texas 79409, United States of America |
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Abstract: | Parallel systems with processing distributed in the various modules are very interesting examples of hardware/software tradeoffs within a complex structure. An example of such a system mode of N modules, has been considered. The implications of a common memory and a central controller are analysed and an availability model is derived.The division of the software task into subtasks is viewed as a source of possible deadlock of the structure. Series catastrophic states due to hard core units and software coupling are included in the availability analysis. |
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