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Event Details: GPU Applications to Multigrid Solvers for Elliptic Partial Differential Equations with Strongly Variable Coefficients

Date: Friday, February 19, 2010, 02:00 pm - 03:00 pm
Location: Room 405 Walter

Up to now, solutions of partial differential equations have been devised on GPU for hyperbolic and parabolic partial differential equations, such as seismic wave propagation and heat-diffusion equations. We will discuss GPU solutions for elliptic partial differential equations with strongly variable coefficients, which are found in the Stokes creep flow phenomenon with variable viscosity in the Earth's mantle. We will discuss the use of Krylov subspace methods as a preconditioner for using multigrid method as an iterative approach for this problem on GPU and show the relative speed up compared to CPU.

Presented by Larry Zheng, Laboratory of Computational Geodynamics, Graduate University of the Chinese Academy of Sciences, Beijing, China