Running SSIS packages In Parallel To Optimize

Hi, 

I currently have a Master-Child Packages set up :

1. A Excel CSV file which contains package order, package name and package location

2. I import the CSV file data into the SQL server table and then using the ForEachLoopContainer in Master Package- Execute the child package - using Execute package tasks.

Since I have around 80 child packages, I would want some of the packages which dont have any dependencies to run in parallel and others which do wait for the dependent package to finish and then execute. 

Using the set up that I currently have, please advice possible ways to execute my child packages in  parallel. Currently per my setup all my packages execute one after the other which is not an optimal solution.

Please advice,

Thanks 

EVA05