Summaries - Research
Back NPS-NRL-Rice-UIUC Collaboration on Navy Atmosphere-Ocean Coupled Models on Many-Core Computer Architectures
|Division||Graduate School of Engineering & Applied Science|
Giraldo, Francis X.
Wilcox, Lucas C.
|Sponsor||Office of Naval Research (Navy)|
|Summary||The goal of this project is threefold. The first goal is to identify the bottlenecks of the Nonhydrostatic Unified Model of the Atmosphere (NUMA) and then circumvent these bottlenecks through the use of: 1) analytical tools to identify the most computationally intensive parts of both the dynamics and physics; 2) intelligent and performance portable use of heterogeneous accelerator-based many-core machines, such as General Purpose Graphics Processing Units (GPGPU or GPU, for short) or Intel's Many Integrated Core (MIC), for the dynamics; and 3) intelligent use of accelerators for the physics. The second goal is to implement Earth System Modeling Framework (ESMF) interfaces for the accelerator-based computational kernels of NUMA allowing the study of coupling many-core based components. We will investigate whether the ESMF data structures can be used to streamline the coupling of models in light of these new computer architectures which require memory access that has to be carefully orchestrated to maximize both cache hits and bus occupancy for out of cache requests.|
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