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Oct\Nov 2011 Q4

Posted by Darkling

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Darkling

Oct\Nov 2011 Q4
May 23, 2012 11:08AM

Registered: 15 years ago
Posts: 234
Rating: 0

4.2
Need
P0: 0,6,5,2
P1: 1,0,3,5
P2: 1,0,0,0
P3: 0,0,0,0
P4: 0,0,2,0

Max resource vector = 3,17,9,10

4.3

P2: 0,0,1,2 + 1,5,2,0 = 1,5,3,2
P3: 0,2,1,0 + 1,5,3,2 = 1,7,4,2
P4: 0,6,3,2 + 1,7,4,2 = 1,13,7,4
P0: 1,13,7,4 + 1,0,0,4 = 2,13,7,8
P1: 2,13,7,8 + 1,4,2,2 = 3,17,9,10

SYSTEM IS SAVE

4.4
0,4,2,0 is smaller than need and available resources and can be imposed
P0:
Need = 0,2,3,2
Allocation = 1,4,2,4
Available = 1,1,0,0

now do safety test
P2: 1,1,0,0 + 0,0,1,2 = 1,1,1,2
P3: 1,1,1,2 + 0,2,1,0 = 1,3,2,2
P4: 1,3,2,2 + 0,6,3,2 = 1,9,5,4
P0: 1,9,5,4 + 1,4,2,4 = 2,13,7,8
P1: 2,13,7,8 + 1,4,2,2 = 3,17,9,10

NEW SYSTEM IS SAVE