SC13 Home > SC13 Schedule > SC13 Presentation - A Scalable Schwarz Method for 3D Linear Elasticity Problems on Domains with Complex Geometry

SCHEDULE: NOV 16-22, 2013

When viewing the Technical Program schedule, on the far righthand side is a column labeled "PLANNER." Use this planner to build your own schedule. Once you select an event and want to add it to your personal schedule, just click on the calendar icon of your choice (outlook calendar, ical calendar or google calendar) and that event will be stored there. As you select events in this manner, you will have your own schedule to guide you through the week.

A Scalable Schwarz Method for 3D Linear Elasticity Problems on Domains with Complex Geometry

SESSION: Research Poster Reception

EVENT TYPE: Posters, Electronic Posters, and Education Posters

TIME: 5:15PM - 7:00PM

AUTHOR(S):Fande Kong, Xiao-Chuan Cai

ROOM:Mile High Pre-Function

ABSTRACT:
Several iterative algorithms for solving the elasticity equation are theoretically scalable in the sense that the number of iterations doesn't grow much when the number of processors is increased. However, the theoretically optimal scalability doesn't translate into linear scalability in total compute time, especially when the number of processors is large, because the coarse level solvers aren't scalable in terms of the compute time. We introduce a new way to construct coarse level spaces that preserve the geometric features of the computational domain, but give up accuracy in the interior of the domain. As it turns out the tradeoff in accuracy provides the high scalability in terms of the total compute time. We show numerically that such a new preconditioner is highly scalable for solving linear elasticity equation discretized on unstructured 3D meshes with hundreds of millions of unknowns on a supercomputer with over 10,000 processors.

Chair/Author Details:

Fande Kong - University of Colorado Boulder

Xiao-Chuan Cai - University of Colorado Boulder

Add to iCal  Click here to download .ics calendar file

Add to Outlook  Click here to download .vcs calendar file

Add to Google Calendarss  Click here to add event to your Google Calendar