Weak Scaling (STRUKTI)

Weak scaling of the Discontinuous Galerkin Spectral Element code “STRUKTI” from 1 up to 4096 processors on the BlueGene cluster JUGENE in Jülich. The overall fixed number of degrees of freedom on a processor was 13,824 (=24³). The plot shows different combinations of local polynomial degree N and number of grid cells, showing that higher N seems to have better parallel efficiency, while the scaling for all combinations is at least higher than 95%.