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LNCS 0558 -Job Scheduling Strategies for Parallel Processing

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On the Development of an Efficient Coscheduling System 111<br />

200<br />

180 0.6<br />

s 160<br />

l 140<br />

o 120<br />

w<br />

100<br />

do<br />

80<br />

w 60<br />

n<br />

40<br />

20<br />

0 ♦ ♦ ♦ ♦ ♦<br />

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1<br />

♦<br />

♦<br />

♦<br />

0.7<br />

♦<br />

♦<br />

+ + + + + +<br />

+<br />

+<br />

0.8 ∇<br />

0.9<br />

∇<br />

+<br />

∇<br />

+<br />

∇<br />

∇× ∇× ∇× ∇× ∇× ∇× ×<br />

×<br />

×<br />

1.0<br />

×<br />

△ △ △ △ △ △<br />

△<br />

△<br />

△<br />

△<br />

workload<br />

(a)<br />

200<br />

180 1 ♦<br />

160 2 +<br />

s<br />

140 4<br />

l<br />

+<br />

o 120<br />

♦<br />

w<br />

100<br />

do<br />

80<br />

+<br />

w 60<br />

n<br />

♦<br />

40<br />

20<br />

♦<br />

+<br />

0 ♦ ♦ ♦ ♦ ♦<br />

♦<br />

+ + + + + +<br />

∇ ∇ ∇ ∇ ∇<br />

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1<br />

∇<br />

∇<br />

∇<br />

∇<br />

6<br />

∇<br />

× × × × × ×<br />

×<br />

×<br />

×<br />

×<br />

s l<br />

o ts<br />

workload<br />

(b)<br />

6<br />

1 ♦<br />

5 2<br />

+<br />

+ +<br />

+<br />

4<br />

+<br />

4<br />

3<br />

+<br />

♦ ♦<br />

♦<br />

♦<br />

♦<br />

2<br />

+<br />

♦<br />

1<br />

♦<br />

+<br />

♦+<br />

0∇♦<br />

+<br />

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1<br />

∇<br />

∇ ∇ ∇<br />

∇<br />

∇<br />

6<br />

∇<br />

∇<br />

∇<br />

workload<br />

(c)<br />

Fig. 3. (a) Average slowdown when αm =0.0, km = 6 and kl = 1, (b) average slowdown<br />

and (c) average number of slots when αm =0.0 and αl =0.8 and km =6.

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