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Chapter and Conference Paper
Pre-exascale Architectures: OpenPOWER Performance and Usability Assessment for French Scientific Community
Exascale implies a major pre-requisite in terms of energy efficiency, as an improvement of an order of magnitude must be reached in order to stay within an acceptable envelope of 20 MW. To address this objecti...
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Article
Automated Detection of Coronal Loops Using a Wavelet Transform Modulus Maxima Method
We propose and test a wavelet transform modulus maxima method for the automated detection and extraction of coronal loops in extreme ultraviolet images of the solar corona. This method decomposes an image into...
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Chapter and Conference Paper
Accelerating Euler Equations Numerical Solver on Graphics Processing Units
Finite volume numerical methods have been widely studied, implemented and parallelized on multiprocessor systems or on clusters. Modern graphics processing units (GPU) provide architectures and new programing ...
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Article
A multifractal formalism for vector-valued random fields based on wavelet analysis: application to turbulent velocity and vorticity 3D numerical data
Extreme atmospheric events are intimately related to the statistics of atmospheric turbulent velocities. These, in turn, exhibit multifractal scaling, which is determining the nature of the asymptotic behavior...