Cerfacs Entrez dans le monde de la haute performance...

Wide Interest Seminar: V. Balaji

  Jeudi 3 septembre 2015 à 11h00

  Conférence Cerfacs       Salle de Conférence Jean-Claude André    

« Climate computing: the state of play »

By V. BALAJI

NOAA/GFDL and Princeton University

Abstract:
Climate models represent a large variety of processes on a variety of time and space scales, a canonical example of multi-physics multi-scale modeling. In addition the system is physically characterized by sensitive dependence on initial conditions, and natural stochastic variability, and very long integrations are needed
to extract signals of climate change. Algorithms generally possess weak scaling. Weak-scaling, I/O and memory-bound, multi-physics codes present particular challenges to computational performance.

In this talk I will present trends in climate science driving models toward higher resolution, greater complexity, and larger ensembles, all of which present computing challenges. I will also discuss the
prospects for adapting these models to novel hardware and programming models. Finally, I will introduce a set of metrics that can be used for the comparative study of computational performance of Earth System models. These measures do not require specialized software or specific hardware counters, and should be accessible to anyone. They are independent of platform, and underlying parallel programming models. We might use these measures as a basis for a CPMIP, a computational performance MIP.

L'AGENDA

Mardi

02

Avril

2024

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Mardi 2 avril 2024

  Formation    

Mercredi

03

Avril

2024

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Mercredi 3 avril 2024

  Formation    

Lundi

22

Avril

2024

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Du lundi 22 avril 2024 au vendredi 26 avril 2024

  Formation    

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