26 datasets found

Ion traps, using radio-frequency (rf) electric fields, offer the possibility to store ion ensembles in a small region of space where, by means of cooling technics,...

The parareal in time algorithm allows to perform parallel simulations of time dependent problems. This algorithm has been implemented on many types of time dependent...

The goal of this work is to derive a consistent framework for the treatment of contact problems within the Finite Element Method using the Node-to-Segment...

As single processing unit performance has reached a technological limit, the power wall, the past decade has seen a shift from the prevailing trend of increasing...

Complexification of multi-physics modeling leads to have to simulate systems of ordinary differential equations and algebraic differential equations with increasingly...

In order to comply with environmental regulations, automotive manufacturers have to develop efficient engines with low fuel consumption and low emissions. Thus,...

National audience

22 pages

Distributed systems are in the mainstream of information technology. It has become standard to rely on multiple distributed units to improve the performance of the...

A Pelton turbine is characterized by a water jet which is impacting rotating buckets. The main goal of this study is to understand the phenomena which are impacting...

Scientific workflows have emerged as a basic abstraction for structuring and executing scientific experiments in computational simulations. In many situations, these...

In this thesis, we are interested in adapting algorithms to parallel architectures. Current high performance platforms have several levels of parallelism and require a...

The PIC MCC (Particle-In-Cell Monte-Carlo Collision) method is a very powerful tool to study plasmas (we focus here on low temperature plasmas) since it can provide...

International audience

International audience

International audience

This thesis addresses the challenges of developing multitarget code - that is to say, codes whose performance is portable across different hardware targets. We...

International audience

For some years, living matter modeling has been a major challenge which needs more and more research in the simulation field. Indeed, the use of models of living...

To tackle the exploratory nature of science and the dynamic process involved in scientific analysis, dynamic workflows have been identified as an open challenge as...