NHSE ReviewTM 1996 Volume First Issue

Overview of Recent Supercomputers

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3.3 Shared-memory MIMD systems

For some systems in this category it will not always be possible to discuss all models of a particular product line because the number of configurations is simply too large. However, we attempt to give the representative configurations for such systems. In addition, when single-processor versions of a certain machine are available, this is regarded as a special case of a multi-processor version and the one-processor versions are omitted from section 3.1 where they could have been treated.

Furthermore, we have included systems here that a have a shared-memory model as a basis but that may be extended by coupling several of these systems together in a distributed memory way. The distinction is not always very clear when looking at the end product: a multi-frame DEC AlhpaServer (3.3.4) and an HP/Convex SPP-1200 (3.4.8) look very much alike. The difference lies in the integration. In the latter machine the distributed memory extension of multi-CPU nodes was a basis for the architecture while in the former DEC system it is more like an added feature.

  1. The Cray Research Inc. Cray J90-series, T90 series.
  2. The Hitachi S3800 series.
  3. The HP/Convex C4 series.
  4. The Digital Equipment Corp. AlphaServer.
  5. The NEC SX-4.
  6. The Silicon Graphics Power Challenge.
  7. The Tera MTA.

Copyright © 1996 Aad J. van der Steen and Jack J. Dongarra

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