A coupled Newton-Krylov solver for improved CHAD cache utilization and performance.

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Description

CHAD (Computational Hydrodynamics for Advanced Design) is a computer program that has been developed to analyze flows in automotive and defense applications. Extensive performance analysis of the CHAD computer program indicated a need to address cache memory use to increase computational performance. Several strategies have been adopted to achieve this goal: simultaneous solution of the coupled Navier-Stokes equations, data clustering, and data ordering. A coupled Newton-Krylov solver has been incorporated into a version of the CHAD program, resulting in consistent improvement in run times that varies from 50% to 200%. Further work will be required to tune the solver for ... continued below

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4 pages

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Canfield, T.R.; Chien, T.H.; Domanus, H.M.; Tentner, A.M.; Tzanos, C.P.; Valentin, R.A. et al. March 24, 2000.

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Description

CHAD (Computational Hydrodynamics for Advanced Design) is a computer program that has been developed to analyze flows in automotive and defense applications. Extensive performance analysis of the CHAD computer program indicated a need to address cache memory use to increase computational performance. Several strategies have been adopted to achieve this goal: simultaneous solution of the coupled Navier-Stokes equations, data clustering, and data ordering. A coupled Newton-Krylov solver has been incorporated into a version of the CHAD program, resulting in consistent improvement in run times that varies from 50% to 200%. Further work will be required to tune the solver for optimal performance. In addition, experiments with data cluster and reordering indicate a potential for performance improvement.

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4 pages

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  • Advanced Simulation Technologies Conference 2000, Washington, DC (US), 04/16/2000--04/20/2000

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  • Report No.: ANL/MCS/CP-101405
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 775257
  • Archival Resource Key: ark:/67531/metadc719700

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  • March 24, 2000

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • March 24, 2016, 6:30 p.m.

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Canfield, T.R.; Chien, T.H.; Domanus, H.M.; Tentner, A.M.; Tzanos, C.P.; Valentin, R.A. et al. A coupled Newton-Krylov solver for improved CHAD cache utilization and performance., article, March 24, 2000; Illinois. (digital.library.unt.edu/ark:/67531/metadc719700/: accessed June 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.