I think you're still misreading my comment (and dragonwriter's and Knuth's): we all know or can look up what temperature is in randomized algorithms. However, what temperature 0.7 means is a mystery to me. I know that at temperature 0 the result is deterministic, and at higher temperature the randomness increases (possibly they are the Boltzmann factors associated to some energy function, but I don't know, and even if it is, I have no idea how it is scaled, i.e. what is the value of the Boltzmann constant). I know that the API accepts values from 0 to 2. I don't know more. Do you?