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[求助] 本人初学auto mod,有一道题目希望大家赐教

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发表于 2009-10-3 15:08:34 | 显示全部楼层 |阅读模式
刚刚开始学auto mod,这道题目搞不明白,希望大家看看 题目是这样的,) L+ z! j% g. s  z- j( X/ {" H
  Create a new model containing three independent processes, each with one operator. In each process, loads first move into an infinite capacity waiting queue, then into a single-capacity processing queue.
: g4 ]& \3 j  o3 ]4 s) \7 v1 Z& c  Loads are processed by each operator for the following time:
4 w+ `6 S  U  @" [) }  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
, H1 e/ r( _9 o  Worker_B does the job according to a triangular distribution with a min of 30 mins, most likely value of 60 mins, and a max of 90 mins.# K& w8 l8 l5 f) H: G
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
# l4 b3 a9 G; V5 YSend loads to each pocess at the same rate (an exponentially distributed inter-arrival time with a mean of 68 mins) to understand the difference in the processing times of the three workers.
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问题:: N& v0 j  L$ j2 Q7 z
After running the model for 10,000 days, what was the average number of loads in each process?
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发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
: T; D% I7 g  Y5 n' j+ umove into Q_wait /*Capacity is infinte*/
- }1 A( K( g9 L% zmove into Q_process /*Single capacity*/
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& p+ c- H2 [5 {: P; U; Cuse R_A for n 60,10 min /*Resource A*/
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( c0 Z  v; n1 K' b8 o' \0 n) W# qsend to P_B% S: b2 q0 c% T
end! q  M0 D5 F: y$ E2 Q/ r: f
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P_B and P_C is similar+ A0 Z  _. x2 [3 o4 d' X
triangular 30,60,90 min4 t6 Y; l  o5 q3 `4 _7 n* E
u 60,30 min
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in P_C, you need to send to die.
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Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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Remember to turn off the animation before you run your model.

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 楼主| 发表于 2009-10-27 23:53:02 | 显示全部楼层
thanks...
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