Used to set the number of executors based on the Node's memory(GiB)

Number of Executors = Number of vCPUs vCPU(s) Per Executor

For example, if an EC2 Instance with a vCPU count of 8 is used as a Node, and the vCPU(s) Per Executor is set to 4, then the number of executors will be set to 2.