Difference between running parallel test using test workers and using --parallel cli switch

[Pverma96]

Hi, we are using nightwatch for UI testing and wanted to run the test in CD process in Kubernetic container in parallel.
As per documentation, the test workers runs the test in parallel based on the number of CPU available when set to true. Wanted to know that does "nightwatch --parallel" cli switch also work in same way (bases on CPU ) or differently?

Our Kubernetes container has below configuration:

"resources": {
"cpu": 1024,
"memory": 2048 }

@beatfactor