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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,
, r* t' p0 W( n  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.9 Q; n7 @6 P, _! ~! D+ |" J" M
  Loads are processed by each operator for the following time:: I4 k" A) w! \: N! Y
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.$ T) U7 @7 U1 y/ V
  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.
- ~) \* ]/ P) [$ Q  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.& V# [& K& K) ]: ], }$ C+ g
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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8 J( f0 e2 r/ }8 v; o3 b" n问题:6 E% @. g0 d" v& [, d
After running the model for 10,000 days, what was the average number of loads in each process?
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不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving4 R/ q2 ?1 M$ N9 F9 f
move into Q_wait /*Capacity is infinte*/
) a4 k( Z6 K2 K2 z2 ]5 Z- L, |move into Q_process /*Single capacity*/+ J$ g7 p. ?: h" Y% v4 j% t

* M( w! w7 F1 b( r$ M% Huse R_A for n 60,10 min /*Resource A*/- a- I( s( |& E6 n2 H* m, L
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send to P_B
; [! E/ A  q( `. t! I; xend
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P_B and P_C is similar; V# Y/ C: n* }3 v
triangular 30,60,90 min
. T  C8 G- b2 K4 O2 iu 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.+ _. `- k" W' T7 A+ B. W2 q/ m& l

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& a9 \3 U4 J; K/ K( a$ y4 hRemember 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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