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%  \usetheme{Antibes}  % ima sadrzaj gore i kao graf ...
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%  \usetheme{Berlin} % ima sadrzaj gore i tackice
%  \usetheme{Goettingen} % ima sadrzxaj za desne strane
  \usetheme{Montpellier} % ima graf sadrzaj gore
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\usepackage[english]{babel}
% or whatever

\usepackage[latin1]{inputenc}
% or whatever

\usepackage{times}
\usepackage[T1]{fontenc}
% Or whatever. Note that the encoding and the font should match. If T1
% does not look nice, try deleting the line with the fontenc.


\title[HPC for NEES: Plastic Domain Decomposition Method] % (optional, use only with long paper titles)
{High Performance, Parallel Computing for NEES, The Plastic Domain Decomposition Method}

\subtitle
{}

\author[Boris Jeremi{\'c} and Guanzhou Jie] % (optional, use only with lots of authors)
{Boris~Jeremi{\'c}  and Guanzhou Jie}
% - Give the names in the same order as the appear in the paper.
% - Use the \inst{?} command only if the authors have different
%   affiliation.

\institute[UC Davis] % (optional, but mostly needed)
{
  Department of Civil and Environmental Engineering\\
  University of California, Davis}
% - Use the \inst command only if there are several affiliations.
% - Keep it simple, no one is interested in your street address.

\date[NEES annual meeting, Washington DC, June 2006] % (optional, should be abbreviation of conference name)
{NEES annual meeting, Washington DC, June 2006}
% - Either use conference name or its abbreviation.
% - Not really informative to the audience, more for people (including
%   yourself) who are reading the slides online

\subject{}
% This is only inserted into the PDF information catalog. Can be left
% out. 



% If you have a file called "university-logo-filename.xxx", where xxx
% is a graphic format that can be processed by latex or pdflatex,
% resp., then you can add a logo as follows:

\pgfdeclareimage[height=0.2cm]{university-logo}{/home/jeremic/BG/amblemi/ucdavis_logo_gold_lrg}
\logo{\pgfuseimage{university-logo}}



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\begin{document}

\begin{frame}
  \titlepage
\end{frame}

\begin{frame}
  \frametitle{Outline}
  \tableofcontents
  % You might wish to add the option [pausesections]
\end{frame}


% Structuring a talk is a difficult task and the following structure
% may not be suitable. Here are some rules that apply for this
% solution: 

% - Exactly two or three sections (other than the summary).
% - At *most* three subsections per section.
% - Talk about 30s to 2min per frame. So there should be between about
%   15 and 30 frames, all told.

% - A conference audience is likely to know very little of what you
%   are going to talk about. So *simplify*!
% - In a 20min talk, getting the main ideas across is hard
%   enough. Leave out details, even if it means being less precise than
%   you think necessary.
% - If you omit details that are vital to the proof/implementation,
%   just say so once. Everybody will be happy with that.

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\section{High Performance Computing (HPC) for NEES}

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\subsection{Need for HPC: SFSI Hypothesis}

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\begin{frame}
  \frametitle{SFSI Hypothesis: Energy Balance}
  \begin{itemize}
  
  \item Energy  input from the earthquake
\vspace*{0.5cm}

  \item Energy  dissipation in SFS system:
    \begin{itemize}
    
\vspace*{0.2cm}
      \item  Inelasticity  of  the superstructure (plasticity, damage, friction,
      active and passive dampers)

\vspace*{0.2cm}
      \item   Inelasticity   of   the   foundation  system (piles,  shallow
      foundations)

\vspace*{0.2cm}
      \item  Inelasticity  of  soils    around   piles, shallow foundations  and
      abutments  (plasticity;  viscous coupling of solids and fluids (water, air...)

\vspace*{0.2cm}
      \item Radiation damping

    \end{itemize}
  
  \end{itemize}
\end{frame}

%-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%--   You can create overlays\dots
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\subsection{SFSI can be Beneficial and/or Detrimental}



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}
  \frametitle{SFS System Changes}
    \begin{itemize}
%\vspace*{0.4cm}
      \item Earthquake intensity increase (with predominant period)
\vspace*{0.4cm}
      \item SFS system period is elongated 
\vspace*{0.4cm}
      \item Earthquake period and SFS period might coincide for some time
\vspace*{0.4cm}
      \item If energy dissipation $>$ input  $\Rightarrow$ probably small damage in
      SFS system
\vspace*{0.4cm}
      \item If energy dissipation $<$ input $\Rightarrow$ probably large damage in
      SFS system, possibly resonance


    \end{itemize}



\end{frame}

% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% \begin{frame}
%   \frametitle{Energy Dissipation Mechanisms for a Bridge}
% 
% 
%     \begin{itemize}
%       \item Soil around the piles and in abutments
%         \begin{itemize}
%           \item Plastic yielding
%           \item Viscous damping from coupling of solid and fluid (water, air...)
%         \end{itemize}
% 
%       \item Radiation damping
%       \item Plastic yielding of foundation structure (piles)
%       \item Plastic yielding of superstructure
%     \end{itemize}
%   
% 
% 
% \end{frame}
% 

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\section{Plastic Domain Decomposition (PDD) Method}

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\subsection{HPC Simulations for Large Inelastic SFSI Models}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}
 \frametitle{PDD Method: Design Goals}

   \begin{itemize}

  \item Graph partitioning $\rightarrow$
  balance   multiple   phases   simultaneously,   while  also  minimizing  the
  inter-processor communications costs


  \item  It is a multi-objective optimization
  problem (minimize  both  the  inter-processor communications, the data
  redistribution  costs  and  create balanced  partitions)




%\vspace*{0.5cm}
  \item Take into the account (deterministic or probabilistic):

    \begin{itemize}
      \item heterogeneous element loads that change in each iteration

      \item heterogeneous processor performance (multiple generations nodes)

      \item inter-processor communications (LAN or WAN)

      \item data redistribution costs    


    \end{itemize}
  

  \end{itemize}



\end{frame}
%- 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}
 \frametitle{PDD Method: Implementation}

     \begin{itemize}

  
%\vspace*{0.4cm}
      \item  Perform  global  optimization for both (a) internal state determination
      and  system of equatons solution phases


\vspace*{0.4cm}
      \item Adaptive partitioning done using ParMETIS
  
\vspace*{0.4cm}
      \item Iterative system of equations solver PETSC
  
\vspace*{0.4cm}
      \item OpenSees: standard interface and framework
  

%  \item Improves methods from the standard interface (Buffered sendSelf and RecvSelf), 

\vspace*{0.4cm}
  \item Works on SMPs, local DMPs, grids of computers

     
%  \item

\end{itemize}



\end{frame}
%-           
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\subsection{PDD: Current Status}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}
   \frametitle{Features}
   \begin{itemize}
 
%\vspace*{0.4cm}
     \item Initial domain partitioning
%\vspace*{0.4cm}
     \item Adaptive domain repartitioning depending on CPU imbalance, LAN and/or WAN performance
%\vspace*{0.4cm}
     \item  Repartitioning  works  with  loads,  constraints...,  all  necessary
     movable objects
%\vspace*{0.4cm}
      \item  Available  for  all  elements  (solid, structural) that provide the
      standard OpenSees interface (sendSelf, RecvSelf, timer or CL weight estimate)

%\vspace*{0.4cm}
     \item Scalable to a large number of CPUs
%     \item   Optimized   for  the  constitutive  and  element  level  CPU  loads
%     (iterations),
%\vspace*{0.4cm}
    \item Using implicit, iterative solver (PETSC)


%    \item Global optimization for ISD and system of equations solver CPU load is in works 
%\vspace*{0.4cm}
    \item Performance tuning (local cluster GeoWulf, SDSC, TACC,)

   \end{itemize}




\end{frame}
% 



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}
  \frametitle{Speedup Overview}
  


%  
%  \begin{itemize}
%  
%    \item The larger the model, the better the speedup for PDD
%  
%    \item Speedup saturates \\
%     (excessive comm)
%      
%    \item  DD  showing  slower \\ 
%           speedup \\
%           (but superlinear effects)
%  
%  
%  \end{itemize}
%  
%  
%  
%  %
%  \vspace*{-2cm}
%  \begin{figure}[!htbp] 
%  \begin{flushright}
%  \includegraphics[width=6cm]{/home/jeremic/tex/works/Conferences/2006/NEES-annual-mmeting-WashingtonDC/PDD/Speedup01.pdf}
%  %\caption{\label{BridgeSFSI01}  FEM  model  for  seismic response of a three bend
%  %bridge.}
%  \end{flushright}
%  \end{figure}
%  %



%
\begin{figure}[!htbp] 
\begin{center}
\includegraphics[width=9truecm]{/home/jeremic/tex/works/Conferences/2006/NEES-annual-mmeting-WashingtonDC/PDD/Speedup01.pdf}
%\caption{\label{BridgeSFSI01}  FEM  model  for  seismic response of a three bend
%bridge.}
\end{center}
\end{figure}
%




\end{frame}
%-- 


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\section{}

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\section{SFS Interaction Behavior of a Prototype Bridge}

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\subsection{Model Description}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}
 \frametitle{Detailed 3D, FEM model}

   \begin{itemize}

  \item Construction process

  \item Two types of soil: stiff soil (UT, UCD), soft soil (Bay Mud)

  \item Deconvolution of given surface ground motions

  \item Use of the DRM  (Prof. Bielak et al.) for seismic input

  \item Piles $\rightarrow$ beam-column elements in soil holes

  \item Structural model developed at UCB (Prof. Fenves et al.)

  \item Element size issues (filtering of frequencies) 

\begin{table}[!htbp]
%\caption{ }
\begin{center}
\begin{tabular}{|c|c|c|c|r|} 
\hline
model  size  &  el.  size  &  $f_{cutoff}$  & min. $G/Gmax$ & $\gamma$  \\
\hline
%
%
% 100cm element model, f_cuttof=10HZ, G/Gmax=1.0, 12K elements, Gmax model
12K         &  1.0~m          &  10~Hz      & 1.0      & <0.5~\% \\
%
%
%~90cm element model, f_cutoff ~= 3Hz, G/Gmax~=0.08, for epsilon ~= 1%, 15K
%elements, now running...
15K         &  0.9~m          &  >3~Hz     & 0.08            & 1.0~\% \\
%
%
%27.6cm element model, f_cutoff= 10HZ, G/Gmax=0.08, for epsilon = 1%, 150K
%elements, finest model
150K        &  0.3~m          &  10~Hz      & 0.08            & 1.0~\% \\
% 27.6cm element model, f_cutoff= 10HZ, G/Gmax=0.08, for epsilon = 1%, 150K
%elements, finest model
\hline
\end{tabular}
\end{center}
\end{table}

  \end{itemize}







\end{frame}
%- 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}
 \frametitle{FEM Mesh (one of)}

%    \begin{itemize}
% 
% 
%   \item DRM allows for application of inclined waves as well
% 
%   \item
% 
%   \item 
% 
% 
% 
% 
% %\vspace*{0.5cm}
%   \item 
% 
%   \end{itemize}
% 
%
\begin{figure}[!htbp] 
\begin{center}
\includegraphics[width=8cm]{/home/jeremic/tex/works/Reports/2006/NEESDemoProject/PrototypeMesh.jpg}
%\caption{\label{BridgeSFSI01}  FEM  model  for  seismic response of a three bend
%bridge.}
\end{center}
\end{figure}
%







\end{frame}
%- 

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

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\subsection{Selected Results}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}
 \frametitle{Input Motions, Northridge (one of)}

%    \begin{itemize}
%  
%    \item 
%  
%    \item 
%  
%  
%    \end{itemize}
%  

%
\begin{figure}[!htbp] 
\begin{center}
\includegraphics[height=6.5cm]{/home/jeremic/tex/works/Thesis/GuanzhouJie/plotsJune2006/InputMotion.jpg}
%\caption{\label{BridgeSFSI01}  FEM  model  for  seismic response of a three bend
%bridge.}
\end{center}
\end{figure}
%

\end{frame}
%- 



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}
 \frametitle{Changes to the Free Field Input Motions: SFSI}

%   \begin{itemize}
%  \item 
%  \item 
%  \end{itemize}

\begin{figure}[!htbp] 
\begin{center}
\includegraphics[height=6.5cm]{/home/jeremic/tex/works/Thesis/GuanzhouJie/plotsJune2006/SoilDisplacementwithInputMotion01.jpg}
%\caption{\label{BridgeSFSI01}  FEM  model  for  seismic response of a three bend
%bridge.}
\end{center}
\end{figure}
%

\end{frame}
%- 

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}
 \frametitle{Structure Displacements}

%   \begin{itemize}
%  \item 
%  \item 
%  \end{itemize}

\begin{figure}[!htbp] 
\begin{center}
\includegraphics[height=6.5cm]{/home/jeremic/tex/works/Thesis/GuanzhouJie/plotsJune2006/StructureDisplacement01.jpg}
%\caption{\label{BridgeSFSI01}  FEM  model  for  seismic response of a three bend
%bridge.}
\end{center}
\end{figure}
%

\end{frame}
%- 


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}
 \frametitle{Moment Redistributions}

%   \begin{itemize}
%  \item 
%  \item 
%  \end{itemize}

\begin{figure}[!htbp] 
\begin{center}
\includegraphics[height=6.5cm]{/home/jeremic/tex/works/Thesis/GuanzhouJie/plotsJune2006/StructureMoment01.jpg}
%\caption{\label{BridgeSFSI01}  FEM  model  for  seismic response of a three bend
%bridge.}
\end{center}
\end{figure}
%

\end{frame}
%- 



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\section*{Summary}


\begin{frame}
 \frametitle{Summary}


\begin{itemize}

%\vspace*{0.5cm}
\item  Need for high fidelity modeling of SFSI to gain better understanding of the
system performance

\vspace*{1.0cm}
\item SFSI energy balance hypothesis

%\item 

\vspace*{1.0cm}
\item HPC SFSI simulations are available, ready to be used

%\vspace*{0.5cm}
%\item 

%\item 

\end{itemize}

%\begin{frame}
%  \frametitle{Make Titles Informative.}
%\end{frame}

\end{frame}




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% \appendix
% \section<presentation>*{\appendixname}
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% \subsection<presentation>*{For Further Reading}
% 
% \begin{frame}[allowframebreaks]
%   \frametitle<presentation>{For Further Reading}
%     
%   \begin{thebibliography}{10}
%     
%   \beamertemplatebookbibitems
%   % Start with overview books.
% 
%  \bibitem{Oberkampf2002}
% William~L. Oberkampf, Timothy~G. Trucano, and Charles Hirsch.
% \newblock Verification, validation and predictive capability in computational
%   engineering and physics.
% \newblock In {\em Proceedings of the Foundations for Verification and
%   Validation on the 21st Century Workshop}, pages 1--74, Laurel, Maryland,
%   October 22-23 2002. Johns Hopkins University / Applied Physics Laboratory.
% 
%  \bibitem{Roach1998}
% Patrick~J. Roache.
% \newblock {\em Verification and Validation in Computational Science and
%   Engineering}.
% \newblock Hermosa Publishers, Albuquerque, New Mexico, 1998.
% \newblock ISBN 0-913478-08-3.
% % 
% %  \beamertemplatearticlebibitems
% %   % Followed by interesting articles. Keep the list short. 
% % 
% %   \bibitem{Someone2000}
% %     S.~Someone.
% %     \newblock On this and that.
% %     \newblock {\em Journal of This and That}, 2(1):50--100,
% %     2000.
% 
% 
%    \end{thebibliography}
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\end{document}


