The NAS Benchmarks are described in a basic document:
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"NAS Parallel Benchmarks" RNR-94-007, March 1994 by D.Bailey et al. updating original 1991 document.
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"NAS Parallel Benchmark Results 3-94", RNR-94-006 by D.Bailey, E. Barszcz, L.Dagum, and H.D. Simon
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contain latest but obviously ephemeral results.
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See also http://www.nas.nasa.gov/RNR/Parallel/NPB/NPBindex.html.
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The material used in class selects results from 4 benchmarks described in detail in above citations:
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EP: Embarrassingly parallel -- no communication -- tests node performance
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The remaining three benchmarks involve significant communication.
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CG: Conjugate Gradient -- basic PDE Solution method discussed in CPS615
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SP: Pentadiagonal Solver -- model of a full CFD solver
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BT: Block Tridiagonal PDE Iterative solver -- another model of a full CFD solver
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There are several striking results in NAS results with SGI Power Challenge and IBM SP2 leading the way in performance per node. Full document discusses performance per dollar and the full set of benchmarks.
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We will later use mathematical definition of CFD contained in BT and SP benchmarks as a way of indicating key computer science issues in CFD. We will generalize this approach and try to specify numerical relatively in a similar fashion.
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