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<dc:title xml:lang="en">Fast and flexible compilation techniques for effective speculative polyhedral parallelization</dc:title>
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<dcterms:abstract xml:lang="fr">Dans cette thèse, nous présentons nos contributions à APOLLO : un compilateur de parallélisation automatique qui combine l'optimisation polyédrique et la parallélisation spéculative, afin d'optimiser des programmes dynamiques à la volée. Grâce à une phase de profilage en ligne et un modèle spéculatif du comportement mémoire du programme cible, Apollo est capable de sélectionner une optimisation et de générer le code résultant. Pendant l'exécution du programme optimisé, Apollo vérifie constamment la validité du modèle spéculatif. La contribution principale de cette thèse est un mécanisme de génération de code qui permet d'instancier toute transformation polyédrique, au cours de l'exécution du programme cible, sans engendrer de surcoût temporel majeur. Ce procédé est désormais utilisé dans Apollo. Nous l'appelons Code-Bones. Il procure des gains de performance significatifs par comparaison aux autres approches.</dcterms:abstract>
<dcterms:abstract xml:lang="en">In this thesis, we present our contributions to APOLLO: an automatic parallelization compiler that combines polyhedral optimization with Thread-Level-Speculation, to optimize dynamic codes on-the-fly. Thanks to an online profiling phase and a speculation model about the target's code behavior, Apollo is able to select an optimization and to generate code based on it. During optimized code execution, Apollo constantly verifies the validity of the speculation model. The main contribution of this thesis is a code generation mechanism that is able to instantiate any polyhedral transformation, at runtime, without incurring a major time-overhead. This mechanism is currently in use inside Apollo. We called it Code-Bones. It provides significant performance benefits when compared to other approaches.</dcterms:abstract>
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