What is the task priority in SSIS 2008 control flow?

Hi Team,

I am using SSIS 2008.   I am using 4 processor server.

I am having 12 tasks in my Control flow.  There is no Data Flow task.  All are Execute SQL tasks only.  None of the tasks is having dependency.   Tasks can be executed in any priority.

When I start executing the package, which task will be performed first?

Can I give priority like task 6 should be started first since it takes long time?

Thanks a lot in advance for all the help.

Lakshmi.