# “PostProcess” and “Tolerance” in DifferentialEvolution? [closed]

What is "postprocess" option in DifferentialEvolution method (for instance when using NMaximize)?

What does it do when "Automatic"?

How can I set it differently for it to suite best my function?

Also what exactly is "Tolerance" option? What does that number mean?

• FWIW, "PostProcess" may be FindMinimum, "KKT", or "InteriorPoint". The meanings are pretty obvious. Automatic means "KKT" followed by "InteriorPoint" only if the first attempt didn't work out. I don't know what the proper interpretation of the numerical value of "Tolerance" is, though. – Oleksandr R. May 9 '16 at 1:36
• Have you already read through this, by any chance? – J. M.'s technical difficulties May 9 '16 at 3:22
• Yes I've read that. Yet it doesn't answer to my questions. – Mirko Aveta May 9 '16 at 7:20