Climate Modelling Progress Update

ESSENSE is now enabled to run on a single GPU using OpenMP directives. Benchmark tests were carried out on Kebnekaise at HPC2N, with Intel Xeon E5-2690v4 (Broadwell) CPU and NVIDIA Tesla V100 GPU.

However, the speed is about 20% slower than the OpenACC version. Compared to a single CPU, a 33 times speedup was obtained for the lower resolution and about 50x for a higher resolution.

CPUGPUSpeedup
65x65x653.965 [s]0.120 [s]33
129x129x12930.581 [s]0.623 [s]49

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