I set up an instance group on the Google Cloud Platform to run a single python script. After running the script for a few hours, it looks like only one instance (4 vCPUs, 16 GB memory) has been running consistently at around 25% CPU, while the other two instances have been at 2%.
Is there a way to tell each instance to contribute more resources to run the script faster? Note that I am not even close to the designated 60% CPU utilization before the load is shared, among other instances.