Title :
Three-dimensional finite-difference bidomain modeling of homogeneous cardiac tissue on a data-parallel computer
Author :
Saleheen, Hasan I. ; Claessen, Paul D. ; Ng, Kwong T.
Author_Institution :
Concurrent Technol. Corp., Johnstown, PA, USA
Abstract :
A data-parallel computer is used to provide the memory and reduction in computer time for solving large finite-difference bidomain problems. The finite-difference grid is mapped effectively to the processors of the parallel computer, simply by mapping one node to one (virtual) processor. Implemented on the connection machines (CM´s) CM-200 and CM-5, the data-parallel finite-difference algorithm has allowed the solution of finite-difference bidomain problems with over 2 million nodes. Details on the algorithm are presented together with computational performance results.
Keywords :
bioelectric phenomena; biology computing; cardiology; digital simulation; finite difference methods; parallel machines; physiological models; CM-200; CM-5; algorithm; cardiac electrical activity; computational performance; data-parallel computer; finite-difference grid; homogeneous cardiac tissue; large finite-difference bidomain problems; three-dimensional finite-difference bidomain modeling; virtual processor; Biology computing; Biomedical computing; Cardiac tissue; Concurrent computing; Conducting materials; Finite difference methods; Grid computing; Jacobian matrices; Laplace equations; Nonlinear equations; Algorithms; Computer Simulation; Computing Methodologies; Heart; Humans; Models, Cardiovascular;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
