I am training a ml model on my ubuntu 16.04 .
I wrote a code that utilizes all 4 cores of my pc.
I doubt if this would lead to some sort of crash
Using htop command on terminal shows me my 100% usage of all 4 cores along with many information including
/usr/lib/xorg/Xorg -core:0 …….. no listen
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Answer
It is perfectly safe. The important processes on your operating system will not starve as they have higher priority.
See the priority (PR) and nice (NI) values on the output of top command.
If you want to improve the responsiveness of your computer during the calculation, decrease the priority of calculation process with nice command. If your run nice -19 process, the process will be the last to get the CPU time.
If you want even more control see prlimit (simple) or cgroups (complex) commands.