H.H. Bayraktar, T.M. Keaveny, P. Papadopoulos and Atul Gupta

Slides:

Advertisements

Similar presentations

First there was batch Serial processing Waiting jobs sit on a job queue until they can be processed Things processed in first-in first-out order (FIFO)

Advertisements

Financial support from National Institutes of Health (R01GM & R01EB016701) Discussion References Acknowledgments Objectives Introduction Grad Cohort.

Mini Project for CSE 260 Deepa Veerappan DEEP BLUE Ref.

Parallelizing stencil computations Based on slides from David Culler, Jim Demmel, Bob Lucas, Horst Simon, Kathy Yelick, et al., UCB CS267.

Chapter 17 Design Analysis using Inventor Stress Analysis Module

FE analysis with bar elements E. Tarallo, G. Mastinu POLITECNICO DI MILANO, Dipartimento di Meccanica.

Low-power scanning electron microscope image of normal bone architecture in the 3 rd lumbar vertebra of a 30 year old woman marrow and other cells removed.

03/14/06CS267 Lecture 17 CS 267: Applications of Parallel Computers Unstructured Multigrid for Linear Systems James Demmel Based in part on material from.

Parallel Decomposition-based Contact Response Fehmi Cirak California Institute of Technology.

Improved Mesh Partitioning For Parallel Substructure Finite Element Computations Shang-Hsien Hsieh, Yuan-Sen Yang and Po-Liang Tsai Department of Civil.

Some Experiences on Parallel Finite Element Computations Using IBM/SP2 Yuan-Sen Yang and Shang-Hsien Hsieh National Taiwan University Taipei, Taiwan, R.O.C.

CS267 L12 Sources of Parallelism(3).1 Demmel Sp 1999 CS 267 Applications of Parallel Computers Lecture 12: Sources of Parallelism and Locality (Part 3)

Parallel Mesh Refinement with Optimal Load Balancing Jean-Francois Remacle, Joseph E. Flaherty and Mark. S. Shephard Scientific Computation Research Center.

Fracture and Fragmentation of Thin-Shells Fehmi Cirak Michael Ortiz, Anna Pandolfi California Institute of Technology.

Theory of Elasticity Theory of elasticity governs response – Symmetric stress & strain components Governing equations – Equilibrium equations (3) – Strain-displacement.

04/13/07CS267 Guest Lecture CS 267: Applications of Parallel Computers Unstructured Multigrid for Linear Systems James Demmel Based in part on material.

Y. S. Yang and S. H. Hsieh National Taiwan University, Taipei, Taiwan December 8, 2000 FE2000: An Object-Oriented Framework For Parallel Nonlinear Dynamic.

One-Dimensional Problems

FE Modeling Strategy Decide on details from design Find smallest dimension of interest Pick element types – 1D Beams – 2D Plate or.

Support for Adaptive Computations Applied to Simulation of Fluids in Biological Systems Immersed Boundary Method Simulation in Titanium.

1 Parallel Simulations of Underground Flow in Porous and Fractured Media H. Mustapha 1,2, A. Beaudoin 1, J. Erhel 1 and J.R. De Dreuzy IRISA – INRIA.

Plate and shell elements All the following elements enable to create FE mesh of a thin-walled body, with the thickness being one of the important input.

Gaucher Disease: Bone Imaging. DXA (Dual-Energy X-ray Absorptiometry)

A comparison between a direct and a multigrid sparse linear solvers for highly heterogeneous flux computations A. Beaudoin, J.-R. De Dreuzy and J. Erhel.

ParCFD Parallel computation of pollutant dispersion in industrial sites Julien Montagnier Marc Buffat David Guibert.

Fall 2011Math 221 Multigrid James Demmel

Parallelizing Gauss-Seidel Solver/Pre-conditioner Aim: To parallelize a Gauss-Seidel Solver, which can be used as a pre-conditioner for the finite element.

Finite Element Analysis

1 Mark F. Adams 22 October 2004 Applications of Algebraic Multigrid to Large Scale Mechanics Problems.

1 Mark F. Adams SciDAC - 27 June 2005 Ax=b: The Link between Gyrokinetic Particle Simulations of Turbulent Transport in Burning Plasmas and Micro-FE Analysis.

DOE Network PI Meeting 2005 Runtime Data Management for Data-Intensive Scientific Applications Xiaosong Ma NC State University Joint Faculty: Oak Ridge.

MA/CS 471 Lecture 15, Fall 2002 Introduction to Graph Partitioning.

Linear solid elements in 2D and 3D By the term ”linear element” we mean here the elements with linear approximation of displacement and constant stress/strain.

Large Scale Parallel Graph Coloring 1. Presentation Overview Problem Description Basic Algorithm Parallel Strategy –Work Spawning –Graph Partition Results.

A Parallel Hierarchical Solver for the Poisson Equation Seung Lee Deparment of Mechanical Engineering

ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. Chapter 5 Distributed Memory Parallel Computing v9.0.

Hybrid Parallel Implementation of The DG Method Advanced Computing Department/ CAAM 03/03/2016 N. Chaabane, B. Riviere, H. Calandra, M. Sekachev, S. Hamlaoui.

1 Mark F. Adams H.H. Bayraktar, T.M. Keaveny, P. Papadopoulos and Atul Gupta Ultrascalable Implicit Finite Element Analyses in Solid Mechanics with over.

High Performance Computing Seminar II Parallel mesh partitioning with ParMETIS Parallel iterative solvers with Hypre M.Sc. Caroline Mendonça Costa.

6thPan Hellenic Conference, Patra October 2014

Finite element mesh and load definition

Date of download: 10/4/2017 Copyright © ASME. All rights reserved.

Parallel Iterative Solvers for Ill-Conditioned Problems with Reordering Kengo Nakajima Department of Earth & Planetary Science, The University of Tokyo.

Date of download: 10/5/2017 Copyright © ASME. All rights reserved.

APPLICATION OF THE GENERAL ALGORITHM FOR 3-D DEFORMATION OF THE GURSON ELASTIC-PLASTIC MATERIAL TO SMALL AND LARGE STRAIN SHELL CONDITIONS MILOS.

Mechanical Loads on Human Body

I. E. Venetis1, N. Nikoloutsakos1, E. Gallopoulos1, John Ekaterinaris2

Date of download: 11/4/2017 Copyright © ASME. All rights reserved.

Date of download: 11/6/2017 Copyright © ASME. All rights reserved.

Bone metabolism in obese rats programmed by early weaning

Programming Models for SimMillennium

Mechanics of Biomaterials

3Texas Back Institute Research Foundation, Plano, TX, USA

Date of download: 12/28/2017 Copyright © ASME. All rights reserved.

A lateral view radiograph in this 75-year-old female reveals significant loss of bone density as the upper lumbar and lower thoracic vertebral bodies are.

H.H. Bayraktar, T.M. Keaveny, P. Papadopoulos and Atul Gupta

H.H. Bayraktar, T.M. Keaveny, P. Papadopoulos and Atul Gupta

James Demmel Multigrid James Demmel Fall 2010 Math 221.

FEA convergence requirements.

ECIV 720 A Advanced Structural Mechanics and Analysis

H.H. Bayraktar, T.M. Keaveny, P. Papadopoulos and Atul Gupta

H.H. Bayraktar, T.M. Keaveny, P. Papadopoulos and Atul Gupta

OVERVIEW OF FINITE ELEMENT METHOD

Vertebral Fracture Risk of Multiple Myeloma Assessed by a CT-based Finite Element and Trabecular Structure Analysis Miyuki Takasu, Yoko Kaichi, Kazuo.

Vertebral Collapse Caused by Bone Metastasis

CINECA HIGH PERFORMANCE COMPUTING SYSTEM

Numerical Investigation of Hydrogen Release from Varying Diameter Exit

Change in bone in patients who were treated with calcium or sevelamer.

LCH−vertebra plana in an 18-month-old boy.

(based in part on material from Mark Adams)

Presentation transcript:

H.H. Bayraktar, T.M. Keaveny, P. Papadopoulos and Atul Gupta Ultrascalable Implicit Finite Element Analyses in Solid Mechanics with over a Half a Billion Degrees of Freedom (excerpts) Mark F. Adams H.H. Bayraktar, T.M. Keaveny, P. Papadopoulos and Atul Gupta

Trabecular Bone Cortical bone Trabecular bone 5-mm Cube

Micro-Computed Tomography Methods: FE modeling Micro-Computed Tomography CT @ 22 m resolution 3D image Mechanical Testing E, yield, ult, etc. 2.5 mm cube 44 m elements FE mesh

the vertebral body you are showing is pretty healthy from a 80 year old female and it is a T-10 that is thoracic. So it is pretty close to the mid-spine. Usually research is done from T-10 downward to the lumbar vertebral bodies. There are 12 thoracic VB's and 5 lumbar. The numbers go up as you go down.

1 mm slice from vertebral body

Vertebral Body With Shell 80 µm w/ shell Large deformation elast. 6 load steps (3% strain) Scaled speedup ~131K dof/processor 7 to 537 million dof 4 to 292 nodes IBM SP Power3 14 of 16 procs/node

Computational Architecture FE Mesh Input File ParMetis Athena Partition to SMPs FE input file (in memory) FE input file (in memory) Athena: Parallel FE ParMetis Parallel Mesh Partitioner (Univerisity of Minnesota) Prometheus Multigrid Solver FEAP Serial general purpose FE application (University of California) PETSc Parallel numerical libraries (Argonne National Labs) ParMetis Athena Athena File File File File FEAP FEAP FEAP FEAP Material Card pFEAP Silo DB Olympus METIS Prometheus METIS METIS METIS Visit ParMetis PETSc

ParMetis partitions

131K dof / proc .47 Teraflops - 4088 processors