



Session: 
Supercomputing Applications 

Title: 
Applications of Algebraic Multigrid to LargeScale Finite Element Analysis of Whole Bone MicroMechanics on the IBM SP 

Chair: 
John Gustafson (Sun Microsystems Inc.) 

Time: 
Tuesday, November 18, 3:30PM  4:00PM 

Rm #: 
3839 

Speaker(s)/Author(s): 


Mark F. Adams (Sandia National Laboratories), Harun H. Bayraktar (University of California, Berkeley), Tony M. Keaveny (University of California, Berkeley), Panayiotis Papadopoulos (University of California, Berkeley) 



Description: 

Accurate finite element analyses of whole bone require the solution of large sets of algebraic equations. Multigrid has proven to be an effective approach to the design of highly scalable linear solvers for solid mechanics problems. We present some of the first applications of scalable linear solvers, on massively parallel computers, to whole vertebral body structural analysis. We analyze the performance of our algebraic multigrid (AMG) methods on problems with over 537 million degrees of freedom on IBM SP (LLNL and SDSC) parallel computers. We demonstrate excellent parallel scalability, both in the algorithms and the implementations on IBM SPs, and analyze the nodal performance of the important AMG kernels on the IBM Power3 and Power4 architectures. 

Link: 
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