I’m very happy about the new method to search the right parametervalue for keff=1. Just a little concern: is it right, that the search is single threaded? All the depletion calculations afterward are running perfectly fine with all threads used just not the iterations for keff_search. Or am I just missing something and the search is also multithreaded?
Found the culprit: process pinning and not enough particles to get a balanced load.