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High Performance Computing for Geophysics Applications

Final Report Summary - HPC-GA (High Performance Computing for Geophysics Applications)


Simulating large-scale geophysics phenomenon represents a major concern for our society. Recent seismic activity worldwide has shown how crucial it is to enhance our understanding of the impact of earthquakes. Numerical modeling of seismic 3D waves obviously requires highly specific research efforts in geophysics and applied mathematics, leveraging a mix of various schemes such as spectral elements, high-order finite differences or finite elements.
But designing and porting geophysics applications on top of supercomputers also requires a strong expertise in parallel programming and the use of appropriate runtime systems able to efficiently deal with heterogeneous architectures featuring many-core nodes typically equipped with GPU accelerators. The HPC-GA project evaluated the functionalities provided by current runtime systems in order to point out their limitations. It also aims at designing new methods and mechanisms for an efficient scheduling of processes/threads and a clever data distribution on such platforms.

6 PhD thesis were defended during the HPC GA project (Mexico, Grenoble, Porto Alegre and Sao Paulo). 4 PhD student got permanent positions in Mexico, and in Brazil (Santa Maria and Florianapolis).

15 Journals and 14 conference papers were published by the HPC GA partners. One best paper award at the SBAC PAD 2014 conference.




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