1 \select@language {french}
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2 \contentsline {part}{I\hspace {1em}PARTIE I: Contexte scientifique et revue de l'\IeC {\'e}tat de l'art}{3}{part.1}
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3 \contentsline {chapter}{\numberline {1}Cadre de travail et contexte scientifique}{5}{chapter.1}
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4 \contentsline {section}{\numberline {1.1}Classe des algorithmes it\IeC {\'e}ratifs parall\IeC {\`e}les \IeC {\`a} large \IeC {\'e}chelle dans une grille de calcul}{5}{section.1.1}
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5 \contentsline {subsection}{\numberline {1.1.1}Partitionnement du probl\IeC {\`e}me}{6}{subsection.1.1.1}
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6 \contentsline {subsection}{\numberline {1.1.2}Modes d'ex\IeC {\'e}cution synchrone et asynchrone}{7}{subsection.1.1.2}
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7 \contentsline {section}{\numberline {1.2}M\IeC {\'e}thodes de r\IeC {\'e}solution parall\IeC {\`e}les du probl\IeC {\`e}me de Poisson et de l'algorithme two-stage multisplitting de Krylov}{9}{section.1.2}
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8 \contentsline {subsection}{\numberline {1.2.1}Algorithme de Jacobi}{9}{subsection.1.2.1}
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9 \contentsline {subsection}{\numberline {1.2.2}M\IeC {\'e}thode de r\IeC {\'e}solution GMRES}{9}{subsection.1.2.2}
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10 \contentsline {subsection}{\numberline {1.2.3}Solveur multisplitting}{9}{subsection.1.2.3}
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11 \contentsline {section}{\numberline {1.3}Simulateurs d'ex\IeC {\'e}cution d'algorithmes parall\IeC {\`e}les MPI dans une grille de calcul}{9}{section.1.3}
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12 \contentsline {subsection}{\numberline {1.3.1}Calcul sur grille}{9}{subsection.1.3.1}
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13 \contentsline {subsection}{\numberline {1.3.2}G\IeC {\'e}n\IeC {\'e}ralit\IeC {\'e}s sur la simulation}{11}{subsection.1.3.2}
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14 \contentsline {subsection}{\numberline {1.3.3}MPI - Message Passing Interface}{13}{subsection.1.3.3}
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15 \contentsline {subsection}{\numberline {1.3.4}Simulateur SIMGRID - SMPI}{15}{subsection.1.3.4}
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16 \contentsline {section}{\numberline {1.4}Motivations}{15}{section.1.4}
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17 \contentsline {section}{\numberline {1.5}Conclusion partielle}{15}{section.1.5}
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18 \contentsline {chapter}{\numberline {2}Etat de l'art et travaux de recherche associ\IeC {\'e}s}{17}{chapter.2}
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19 \contentsline {section}{\numberline {2.1}Concepts et d\IeC {\'e}finitions}{17}{section.2.1}
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20 \contentsline {subsection}{\numberline {2.1.1}Performance de l'application parall\IeC {\`e}le et scalabilit\IeC {\'e}}{17}{subsection.2.1.1}
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21 \contentsline {subsection}{\numberline {2.1.2}Taux d'erreur lors de la pr\IeC {\'e}diction}{19}{subsection.2.1.2}
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22 \contentsline {subsection}{\numberline {2.1.3}Weak contre strong scaling}{19}{subsection.2.1.3}
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23 \contentsline {section}{\numberline {2.2}Probl\IeC {\'e}matique sur la pr\IeC {\'e}diction \IeC {\`a} large \IeC {\'e}chelle de la performance des applications}{20}{section.2.2}
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24 \contentsline {subsection}{\numberline {2.2.1}Facteurs li\IeC {\'e}s \IeC {\`a} l'\IeC {\'e}cosyst\IeC {\`e}me}{21}{subsection.2.2.1}
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25 \contentsline {subsubsection}{\numberline {2.2.1.1}Facteur architecture des processeurs}{22}{subsubsection.2.2.1.1}
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26 \contentsline {subsubsection}{\numberline {2.2.1.2}Facteur : M\IeC {\'e}moire et stockage}{24}{subsubsection.2.2.1.2}
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27 \contentsline {subsubsection}{\numberline {2.2.1.3}Facteur : R\IeC {\'e}seaux de communication}{28}{subsubsection.2.2.1.3}
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28 \contentsline {subsection}{\numberline {2.2.2}Facteurs li\IeC {\'e}s au code de l'application}{28}{subsection.2.2.2}
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29 \contentsline {subsubsection}{\numberline {2.2.2.1}Facteur : Taille du probl\IeC {\`e}me}{29}{subsubsection.2.2.2.1}
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30 \contentsline {subsubsection}{\numberline {2.2.2.2}Performance de la parall\IeC {\'e}lisation}{29}{subsubsection.2.2.2.2}
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31 \contentsline {section}{\numberline {2.3}Techniques d'analyse de performance des applications parall\IeC {\`e}les}{32}{section.2.3}
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32 \contentsline {subsection}{\numberline {2.3.1}G\IeC {\'e}n\IeC {\'e}ralit\IeC {\'e}s et objectifs}{32}{subsection.2.3.1}
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33 \contentsline {subsection}{\numberline {2.3.2}Approches et m\IeC {\'e}thodologie}{32}{subsection.2.3.2}
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34 \contentsline {subsection}{\numberline {2.3.3}Quelques outils d'analyse de performance}{34}{subsection.2.3.3}
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35 \contentsline {section}{\numberline {2.4}M\IeC {\'e}thodes de pr\IeC {\'e}diction de la performance des applications parall\IeC {\`e}les}{35}{section.2.4}
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36 \contentsline {section}{\numberline {2.5}Conclusion partielle}{35}{section.2.5}
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37 \contentsline {part}{II\hspace {1em}PARTIE II - Travaux de contributions, r\IeC {\'e}sultats et perspectives}{37}{part.2}
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38 \contentsline {chapter}{\numberline {3}Comparaison par simulation \IeC {\`a} large \IeC {\'e}chelle de la performance de deux algorithmes it\IeC {\'e}ratifs parall\IeC {\`e}les en mode asynchrone}{39}{chapter.3}
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39 \contentsline {section}{\numberline {3.1}Protocoles et exp\IeC {\'e}rimentations}{39}{section.3.1}
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40 \contentsline {section}{\numberline {3.2}R\IeC {\'e}sultats}{39}{section.3.2}
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41 \contentsline {section}{\numberline {3.3}Conclusion partielle}{39}{section.3.3}
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42 \contentsline {chapter}{\numberline {4}Simulation avec SIMGRID de l\textquoteright ex\IeC {\'e}cution des solveurs lin\IeC {\'e}aires en mode synchrone et asynchrone sur un environnement multi-coeurs simul\IeC {\'e}s}{41}{chapter.4}
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43 \contentsline {section}{\numberline {4.1}Protocoles et exp\IeC {\'e}rimentations}{41}{section.4.1}
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44 \contentsline {section}{\numberline {4.2}R\IeC {\'e}sultats}{41}{section.4.2}
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45 \contentsline {section}{\numberline {4.3}Conclusion partielle}{41}{section.4.3}
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46 \contentsline {chapter}{\numberline {5}Mod\IeC {\`e}le de pr\IeC {\'e}diction de la performance \IeC {\`a} large \IeC {\'e}chelle d'un algorithme it\IeC {\'e}ratif parall\IeC {\`e}le}{43}{chapter.5}
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47 \contentsline {section}{\numberline {5.1}Approche et m\IeC {\'e}thodologie}{43}{section.5.1}
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48 \contentsline {section}{\numberline {5.2}Exp\IeC {\'e}rimentations et r\IeC {\'e}sultats}{43}{section.5.2}
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49 \contentsline {section}{\numberline {5.3}Conclusion partielle}{43}{section.5.3}
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50 \contentsline {chapter}{\numberline {6}Conclusion g\IeC {\'e}n\IeC {\'e}rale et perspectives}{45}{chapter.6}
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51 \contentsline {section}{\numberline {6.1}Conclusion g\IeC {\'e}n\IeC {\'e}rale}{45}{section.6.1}
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52 \contentsline {section}{\numberline {6.2}Travaux futurs et perspectives}{45}{section.6.2}
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53 \contentsline {part}{III\hspace {1em}Annexes}{57}{part.3}
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54 \contentsline {chapter}{\numberline {A}Premier chapitre des annexes}{59}{appendix.A}
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55 \contentsline {chapter}{\numberline {B}Second chapitre des annexes}{61}{appendix.B}
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