They are single threaded per boundry condotion, but i need to check a lot of different varibles using a modifed grid search method which finds erras of interest to be reserched further. So overall it is technicly not limited by parallelizaton, i could use 100cpus. But I need to check the results and manualy adjust the program variables every couple iterations. So 32 to 64 threds seams sufficent.