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This paper reports our efforts on refactoring and optimizing the Community Atmosphere Model (CAM) on the Sunway TaihuLight supercomputer, which uses a many-core processor that consists of management processing elements (MPEs) and clusters of computing processing elements (CPEs). To map the large code base of CAM to the millions of cores on the Sunway system, we take OpenACC-based refactoring as the...
Many important properties of materials such as strength, ductility, hardness and conductivity are determined by the microstructures of the material. During the formation of these microstructures, grain coarsening plays an important role. The Cahn-Hilliard equation has been applied extensively to simulate the coarsening kinetics of a two-phase microstructure. It is well accepted that the limited capabilities...
Climate data have been dramatically increasing in volume in recent years. This huge volume of climate data poses considerable challenges for data storage, archiving and sharing. In this paper, we propose a lossless compression algorithm for climate data, named czip. We efficiently eliminate data redundancy through several new methods, including adaptive prediction, eXclusive OR differencing, multiway...
The Parallel Ocean Program (POP), one of the ocean general circulation models (OGCMS), is widely used in ocean and climate research. This paper presents the SIMD optimization performance of POP on the Intel Xeon X86_64 platform based on the Intel FORTRAN compiler. The results show that SIMD can improve the computation speed of POP, whether high or low resolutions. In the low resolution, the speedup...
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