When pm2 is in cluster mode, does it use 1 core (cpu) per process?

What's going wrong?

I am using pm2 really well for our project service. By the way, I have a question.

I am running a node api on k8s, but I want to use pm2, so I have a question while configuring k8s + pm2 + node api.

     resources:
       requests:
         memory: 256Mi
         cpu: 0.1
       limits:
         memory: 2Gi
         cpu: 2

module.exports = {
   apps: [
     {
       name:'api',
       script:'dist/bundle.js',
       instances: 6,
       autorestart: true,
       watch: false,
       exec_mode:'cluster',
     },
   ],
}

I did it as above, but looking at the log of the k8s pod, 6 pm2 processes were constantly restarting.

If you guess, starting with pm2 will allocate 1 cpu core per process? I wonder.

How could we reproduce this issue?

Supporting information

PM2 log: PM2 version : 4.5.0
PM2 log: Node.js version : 12.14.1

$ pm2 report

Start with the Kubernetes resource manifest and the PM2 4.5.0 cluster configuration shown in the issue, then review the PM2 report and pod logs for the repeated restarts. Done means establishing whether cluster processes consume CPU independently and documenting the cause of the restarts or the configuration change required.