Scalability of OpenFOAM Density-Based Solver with Runge–Kutta Temporal Discretization Scheme

Table 5

Relative time results of the weak scaling test (forward-facing step).

#Ranks	rhoCentralFoam	rhoCentralRK4Foam
64	1	1
128	1.034	1.002
256	1.085	1.018
512	1.153	1.031
1024	1.186	1.041
2048	1.212	1.067
4096	1.203	1.063