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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,
$ K* L4 _, W+ p$ }  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.4 m, w) T" Y; [* ^/ k5 ~# o
  Loads are processed by each operator for the following time:
8 Q9 a  u% [$ q7 a  b% _( h/ k# I  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.9 R) v$ m; W, G5 l* I5 I9 `" L% m( `4 L
  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.9 M5 s# d3 L! w0 b/ Z: _
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.6 x' y& [2 Z8 p8 ]
Send 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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2 t9 ~( {  F( M3 m- [$ i问题:
  n5 L5 |( i1 e# ^/ O2 T1 BAfter running the model for 10,000 days, what was the average number of loads in each process?: L5 j8 L/ i/ ~- i6 e* P

" {# }; F  C. Y8 Z& c不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
2 ]/ w1 ?, c% e  W7 p; Fmove into Q_wait /*Capacity is infinte*/
4 K+ q; K* K3 _# x. Kmove into Q_process /*Single capacity*/; X' j1 q" V, b6 Y7 @! V  l: k

) k' G! n( T, N% I) |6 _8 Wuse R_A for n 60,10 min /*Resource A*/6 C& F  m( F* @

: l( M. q, g4 B$ gsend to P_B& w# k  ]* V; x$ i0 R4 N3 N4 P- {
end
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3 y8 N# w7 j0 M3 X2 UP_B and P_C is similar$ |! d+ `2 u- _6 K3 I5 U
triangular 30,60,90 min; ^9 h' K1 x9 n' E6 v
u 60,30 min7 q6 N% d5 t. m' g5 j3 \3 ?

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" Z& q+ D& }" J) S5 d  _+ N0 u7 jin P_C, you need to send to die.0 B; D8 G. G7 x1 _% S& l

. m; y7 G! f, b( B0 z9 J1 d) a" G+ dThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.# R9 u5 z4 l  Z% ?1 {( V
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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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