How to run multiple task parallel for optimization?

Hi,

I attached a task scheduling in jpg file. I want to perform the optimum scheduling of the given tasks in task.jpg. I have multiple tasks in a row which have to be complete before starting the next row of task. For example, the task 1, 3 and 29 should be completed before starting of task 2,14,15,27,30 and 31. Kindly anybody help to predence constraints for the attached tasks.

Cheers,

Usman

[Walter Roberson]

Do you need to execute multiple tasks in parallel? Or do you need to calculate what the optimal schedule would be ?