A Lower Bound for Quantifying Overlap Effects: An Empirical Approach

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Among the many features that are implemented in today`s microprocessors there are some that have the capability of reducing the execution time via overlapping of different operations. Overlapping of instructions with other instructions, and overlapping of computation with memory activities are the main way in which execution time is reduced. In this paper we will introduce a notion of overlap and its definition, and a few different ways to capture its effects. We will characterize some of the DOE Accelerated Strategic Computing Initiative (ASCI) benchmarks using the overlap and some other quantities related to it. Also, we will present a ... continued below

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15 p.

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Bassetti, Federico December 31, 1997.

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Among the many features that are implemented in today`s microprocessors there are some that have the capability of reducing the execution time via overlapping of different operations. Overlapping of instructions with other instructions, and overlapping of computation with memory activities are the main way in which execution time is reduced. In this paper we will introduce a notion of overlap and its definition, and a few different ways to capture its effects. We will characterize some of the DOE Accelerated Strategic Computing Initiative (ASCI) benchmarks using the overlap and some other quantities related to it. Also, we will present a characterization of the overlap effects using a lower bound derived empirically from measured data. We will conclude by using the lower bound to estimate other components of the overall execution time.

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15 p.

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OSTI as DE98001302

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  • EPCCC `98: IEEE international performance, computing and communication, Phoenix, AZ (United States), 16-18 Feb 1998

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  • Other: DE98001302
  • Report No.: LA-UR--97-3213
  • Report No.: CONF-980212--
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 621561
  • Archival Resource Key: ark:/67531/metadc699301

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  • December 31, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • May 5, 2016, 6:29 p.m.

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Bassetti, Federico. A Lower Bound for Quantifying Overlap Effects: An Empirical Approach, article, December 31, 1997; New Mexico. (digital.library.unt.edu/ark:/67531/metadc699301/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.