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Climate simulation

Climate simulation

At the Cyprus Institute the global atmospheric chemistry climate model EMAC (ECHAM/MESSy Atmospheric Chemistry) is used to simulate atmospheric chemistry and climate change with a focus on the Eastern Mediterranean and the Middle East. The model runs on several platforms including IBM's POWER6 and Intel systems. Climate and atmospheric chemistry simulations are compute-intensive applications and create large data sets. The EMAC model is constituted by a nonlocal meteorological part with low scalability, and local physical/chemical processes with high scalability. The model’s structure naturally suits the DEEP Architecture using the Cluster Nodes for the nonlocal part and the Booster Nodes for the local processes.

These simulations are done by The Cyprus Institute (CYI), Cyprus.

 

"Studying the chemistry and physics of the atmosphere we employ a complex Earth-system simulation coupling a general circulation model with local physical and chemical processes. Running on parallel supercomputers the global processes have high communication demands while the local processes are inherently independent. The DEEP architecture is naturally suited to these tasks with global components running on the Cluster nodes exploiting the high-speed Xeon processors and local components running on the highly-parallel Xeon Phi co-processors. However, different distributions of work cause different amounts of communication. By balancing communication versus computation the DEEP concept provides us with a new degree of freedom allowing us to distribute the different work elements at their optimal parallelisation." - Hendrik Merx, CYI


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