Here is the RUN tree for test_run2.xmlv3
WARNING : deadline and is_ready attributes are only computed 
for pair number levels ... i.e. pack levels and NOT for dual levels !

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level=4 

packed server4 with childs server1 server2 server3

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level=3 

dual server1 server2 server3

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level=2

packed server1 with childs T1 T2 T3
packed server2 with childs T4 T5 T6
packed server3 with childs T7

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level=1 

dual T1 T2 T3 T4 T5 T6 T7

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level=0

T1 T2 T3 	5/7
T4 		10/14
T5 T6  		10/14
T7 		5/7
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