11f6643lec14a - Karp-Flat Method to Estimate Sequential...

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Analytical Modeling of Parallel System Performance 10/11/11
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Gives a quick upper bound on the reduction of exec. time for a given size problem with p increasing Ignores comm. ==> may overestimate speedup Ignores Problem size scaling ==> may underestimate speedup Amdahl's Law
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Gustafson-Barsis's Law
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Unformatted text preview: Karp-Flat Method to Estimate Sequential Fraction Granularity Scalability Isoefficiency Function The relative increase of W required for constant E gives the scalability of the parallel system. If W grows linearly with p, then it is a highly scalable system...
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This note was uploaded on 01/29/2012 for the course CS 6643 taught by Professor Staff during the Fall '08 term at The University of Texas at San Antonio- San Antonio.

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11f6643lec14a - Karp-Flat Method to Estimate Sequential...

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