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2017 GTC San Jose

S7331 - Massively Parallel Landscape-Evolution Modelling using General Purpose Graphical Processing Units

Session Speakers
Session Description

Landscape Evolution Modeling (LEM) is used to understand how landscapes evolve over millions of years. It is based on a regular grid of cells, each representing a height in the landscape. For each simulated year, we follow the processes of computing: how water flows between cells, the summation of water flowing through cells and the amount of erosion/deposition. Traditionally, due to computational complexity, such simulation models have only been performed on trivially small landscapes of 5,000 cells taking 5 hours to compute 1,000 years. However, researchers wish to perform simulations on massive landscapes (50+ million) over millions of years. We demonstrate here PARALEM, a GPGPU-enabled LEM capable of two to three orders of magnitude speedup in comparison to the best-in-class LEM software.


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Talk
Computational Physics Earth Systems Modeling HPC and Supercomputing
25 minutes
Session Schedule