A Spatio-Temporal Coupling Method to Reduce the Time-to-Solution of Cardiovascular Simulations

Conference Paper

We present a new parallel-in-time method designed to reduce the overall time-to-solution of a patient-specific cardiovascular flow simulation. Using a modified Para real algorithm, our approach extends strong scalability beyond spatial parallelism with fully controllable accuracy and no decrease in stability. We discuss the coupling of spatial and temporal domain decompositions used in our implementation, and showcase the use of the method on a study of blood flow through the aorta. We observe an additional 40% reduction in overall wall clock time with no significant loss of accuracy, in agreement with a predictive performance model.

Full Text

Duke Authors

Cited Authors

  • Randles, A; Kaxiras, EK

Published In

International Standard Serial Number (ISSN)

  • 1530-2075

International Standard Book Number 13 (ISBN-13)

  • 978-1-4799-3801-8

Digital Object Identifier (DOI)

  • 10.1109/IPDPS.2014.68

Conference Name

  • International Parallel and Distributed Processing Symposium

Conference Start Date

  • May 19, 2014

Conference End Date

  • May 23, 2014