Descripción del proyecto
Utilización de sistemas de exaescala para cuantificar incertidumbres
Las incertidumbres en los sistemas complejos plantean desde hace tiempo un reto importante en el campo de la ingeniería. Una posible solución para afrontar este reto consiste en aprovechar la inmensa potencia de cálculo que ofrecen los sistemas de exaescala. En este contexto, el equipo del proyecto ExaQUte, financiado con fondos europeos, pretende optimizar las capacidades de los sistemas a exaescala para realizar simulaciones computacionales. Su objetivo es establecer un marco de vanguardia para la cuantificación de la incertidumbre y la optimización en condiciones de incertidumbre. Para lograrlo, en el proyecto ExaQUte se empleará un método de Montecarlo multinivel, que permitirá cuantificar un gran número de variables estocásticas. También integrará tecnologías vanguardistas de programación dinámica de tareas con métodos de solución acelerada espacio-temporal. Esta integración pretende optimizar la utilización eficiente de los sistemas de exaescala.
Objetivo
The ExaQUte project aims at constructing a framework to enable Uncertainty Quantification (UQ) and Optimization Under Uncertainties (OUU) in complex engineering problems using computational simulations on Exascale systems.
The stochastic problem of quantifying uncertainties will be tackled by using a Multi Level MonteCarlo (MLMC) approach that allows a high number of stochastic variables. New theoretical developments will be carried out to enable its combination with adaptive mesh refinement, considering both, octree-based and anisotropic mesh adaptation.
Gradient-based optimization techniques will be extended to consider uncertainties by developing methods to compute stochastic sensitivities, This requires new theoretical and computational developments. With a proper definition of risk measures and constraints, these methods allow high-performance robust designs, also maximizing the solution reliability.
The description of complex geometries will be possible by employing embedded methods, which guarantee a high robustness in the mesh generation and adaptation steps, while allowing preserving the exact geometry representation.
The efficient exploitation of Exascale system will be addressed by combining State-of-the-Art dynamic task-scheduling technologies with space-time accelerated solution methods, where parallelism is harvested both in space and time.
The methods and tools developed in ExaQUte will be applicable to many fields of science and technology. The chosen application focuses on wind engineering, a field of notable industrial interest for which currently no reliable solution exists. This will include the quantification of uncertainties in the response of civil engineering structures to the wind action, and the shape optimization taking into account uncertainties related to wind loading, structural shape and material behavior.
All developments in ExaQUte will be open-source and will follow a modular approach, thus maximizing future impact.
Ámbito científico
Programa(s)
Convocatoria de propuestas
Consulte otros proyectos de esta convocatoriaConvocatoria de subcontratación
H2020-FETHPC-2017
Régimen de financiación
RIA - Research and Innovation actionCoordinador
08034 Barcelona
España