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Parallel splitting solvers for the isogeometric analysis of the Cahn-Hilliard equation

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  • Vladimir Puzyrev
  • Marcin Łoś
  • Grzegorz Gurgul
  • Victor Calo
  • Witold Dzwinel
  • Maciej Paszyński

Abstract

Modeling tumor growth in biological systems is a challenging problem with important consequences for diagnosis and treatment of various forms of cancer. This growth process requires large simulation complexity due to evolving biological and chemical processes in living tissue and interactions of cellular and vascular constituents in living organisms. Herein, we describe with a phase-field model, namely the Cahn-Hilliard equation the intricate interactions between the tumors and their host tissue. The spatial discretization uses highly-continuous isogeometric elements. For fast simulation of the time-dependent Cahn-Hilliard equation, we employ an alternating directions implicit methodology. Thus, we reduce the original problems to Kronecker products of 1 D matrices that can be factorized in a linear computational cost. The implementation enables parallel multi-core simulations and shows good scalability on shared-memory multi-core machines. Combined with the high accuracy of isogeometric elements, our method shows high efficiency in solving the Cahn-Hilliard equation on tensor-product meshes.

Suggested Citation

  • Vladimir Puzyrev & Marcin Łoś & Grzegorz Gurgul & Victor Calo & Witold Dzwinel & Maciej Paszyński, 2019. "Parallel splitting solvers for the isogeometric analysis of the Cahn-Hilliard equation," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 22(16), pages 1269-1281, December.
    • Handle: RePEc:taf:gcmbxx:v:22:y:2019:i:16:p:1269-1281
    DOI: 10.1080/10255842.2019.1661388
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