Performances of multiprocessor multidisk architectures for continuous media storage

Benoit A. Gennart; Vincent Messerli; Roger David Hersch

doi:10.1117/12.234806

13 March 1996 Performances of multiprocessor multidisk architectures for continuous media storage

Benoit A. Gennart, Vincent Messerli, Roger David Hersch

Proceedings Volume 2670, Storage and Retrieval for Still Image and Video Databases IV; (1996) https://doi.org/10.1117/12.234806
Event: Electronic Imaging: Science and Technology, 1996, San Jose, CA, United States

Abstract

Multimedia interfaces increase the need for large image databases, capable of storing and reading streams of data with strict synchronicity and isochronicity requirements. In order to fulfill these requirements, we consider a parallel image server architecture which relies on arrays of intelligent disk nodes, each disk node being composed of one processor and one or more disks. This contribution analyzes through bottleneck performance evaluation and simulation the behavior of two multi-processor multi-disk architectures: a point-to-point architecture and a shared-bus architecture similar to current multiprocessor workstation architectures. We compare the two architectures on the basis of two multimedia algorithms: the compute-bound frame resizing by resampling and the data-bound disk-to-client stream transfer. The results suggest that the shared bus is a potential bottleneck despite its very high hardware throughput (400Mbytes/s) and that an architecture with addressable local memories located closely to their respective processors could partially remove this bottleneck. The point- to-point architecture is scalable and able to sustain high throughputs for simultaneous compute- bound and data-bound operations.

Citation Download Citation

Benoit A. Gennart, Vincent Messerli, and Roger David Hersch "Performances of multiprocessor multidisk architectures for continuous media storage", Proc. SPIE 2670, Storage and Retrieval for Still Image and Video Databases IV, (13 March 1996); https://doi.org/10.1117/12.234806

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