What i do first is start the daemon and after it is in sync i start pixelminer.exe which only asks me the address to mine to. What is the command line or how i get it to use all 16?
oh im sorry i misread. i thought you were trying to use the miner on the pong game. So the solo miner should by default use all cores. if you right click on it in task manager and 'goto details' you can right click again and goto 'set affinity' then you can see if all the threads of your cpu are checked.