Impacts of cloud microphysics on trade wind cumulus: which cloud microphysics processes contribute to the diversity in a large eddy simulation?

Progress in Earth and Planetary Science

Table 1 Computational performance of SCALE-LES

Number of core	16	2048	8192	32,768	131,072	663,552^a
(Number of MPI process)	(2)	(256)	(1024)	(4096)	(16,384)	(82,944)
Elapsed time (s step⁻¹)	2.528	2.172	2.443	2.017	1.995	2.113
Performance efficiency (%)	5.5	6.3	5.6	6.8	6.9	6.5

Elapsed time (s step⁻¹) and performance efficiency (%) of SCALE-LES measured using the two-moment bulk microphysical scheme. The performance was measured through an experiment in which the number of grids for each MPI process was the same (weak scaling test) on the K computer
^aThis test used all nodes of the K computer