Does hyper-threading speed up my simulations?     

In general, hyper-threading does not speed up CPU intensive tasks such as numerical modelling in MIKE simulations. 

Hyper-threading is well designed for less intensive CPU tasks such as document handling and spreadsheet analysis. However, it is the number of physical cores that is the determining factor for the performance of hardware regarding a MIKE model execution.

NOTE: Lately new processors have begun to be built with a combination of different types of cores: Performance cores and Efficiency cores. In this case it is extra important to disable hyper-threading, as it otherwise will have a severe negative effect on the computational performance of the simulation.