Hi, anyway I can change the thread number?

cpuminer-gw64-corei7.exe -a yescrypt -o stratum+tcp://yescrypt.mine.zpool.ca:6233 -u 17g2APRaoDz17mM4Vw9R1hSR6juVnKXGrk -p c=BTC -t=3

I'm trying to set the thread numbers lower, but it seems that no matter which number I set to, it will still come out the default (meaning full number) of threads.

Thanks.