A Look At Linux Application Scaling Up To 128 Threads
Rodinia to no surprise continued scaling up to 128 threads while obviously the step from 64 to 128 where it was just a matter of toggling SMT yielded the smallest difference.
The NAMD scientific workload also works out well as another very thread happy real-world test.
The Java-based DaCapo benchmarks meanwhile were scaling much less...
And in the case of the TTSIOD 3D Renderer, having SMT enabled slightly hurt performance but there was some higher variation in those runs than normal.
GraphicsMagick is another one of the real-world workloads scaling fine on this dual AMD EPYC server for this image manipulation program that's threaded via OpenMP