Cpu +gpu mining @ the same time

[Alohaboy?!]

Aloha!

Is it possible mining quark with minerd on 6/8 cores on my gpu mining rig at the same time i´m mining doge e.g with my gpus?
or will it reduce my overall hashrate  ?

I´ve read that it is important to let 1 core idle for cgminer. is that enough ? oder should I let more cores idled?

thank you for your help

[Hilux74]

You have it right.  Just need the 1 core for cgminer.

[Alohaboy?!]

thx ! I will check this.. but need another cooler first I think