Hybrid structures for simple computer performance estimates

Lyon, Gordon

doi:10.6028/nist.ir.89-4063

Cited by 1 publication

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“…Another shows an example at the other extreme: the application is burdened with frequent communications. Table 1 shows the application signatures [6] {i.e., percent The speedup for this example is negligible. No matter how much the communication system is enhanced, this application stands little chance for improvement.…”

Section: Resultsmentioning

confidence: 99%

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Emulation through time dilation

Antonishek¹,

Snelick²

1990

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Computation and communication are the primary dichotomy of looselycoupled multiprocessor resources. Modeling and simulation are the techniques used to estimate machine performance based on the speed of these resources. The accuracy of the resulting performance estimates is often questionable, since such techniques cannot usually take into account all of the system detail: They become intractable in effort. Any real, hardware implementation of a multicomputer immediately fixes the speed of its resources, and can only yield a single point on the performance curve. We have implemented a third technique, called time dilation[2], to evaluate the performance of loosely-coupled multiprocessors by varying the ratio of computation speed to communication speed. This technique requires a high-speed clock and a test multicomputer system. Time dilation provides a way to measure accurately the performance of a given program on a variation of the physical transport system of a real machine.

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Section: Resultsmentioning

confidence: 99%

“…The partitioning of components to analyze a homogeneous hypercube program can be represented in a use tree (UT) [6]. A UT describes the system's dominant features.…”

Section: Discussionmentioning

confidence: 99%

Emulation through time dilation

Antonishek¹,

Snelick²

1990

View full text Add to dashboard Cite

show abstract

Hybrid structures for simple computer performance estimates

Cited by 1 publication

References 5 publications

Emulation through time dilation

Emulation through time dilation

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