Mac kernel panic when Parallels Desktop is launched (do not even matter if you run virtual machine or not). Usually Mac restarts after running Parallels Desktop for more then 5 minutes, but no exact time.
- MacBookPro uses old GeForce GT216 graphics card.
Open virtual machine configuration > Switch to Options tab > Optimization > Set power scheme to Longer battery life.
Disable 3D acceleration by going to Hardware tab > Video > And choose Disable in 3D acceleration pop-up menu.
In case the issue still persist after performing steps above, disable switches to discrete graphics card.
For example you are able to do this by using open source program gfx.io