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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,
: A( Z& y# L0 M& u  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.
% E4 H6 [  D/ `5 U6 @1 X  Loads are processed by each operator for the following time:
8 c* u0 c2 ?; H0 o- |$ C8 P: G5 R  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
0 |9 u0 Z% n! O1 Z  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.
" H/ r! R$ ?( l$ K) k  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.* N' ^( w0 a! U+ E) H/ q8 {9 [
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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- D; a! j) o" l4 Y/ `% H1 H$ A问题:
! `6 Y  z* I3 B! g; [" j! i6 U% s/ `+ FAfter 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 arriving
. T9 p: N: F# m1 Mmove into Q_wait /*Capacity is infinte*/. p: r; v" ]) ~( K! f9 J
move into Q_process /*Single capacity*/
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- I! L( }$ k; H( S/ y; v$ Quse R_A for n 60,10 min /*Resource A*/
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/ y5 O' W" V7 d6 {send to P_B( L7 K( `( X0 m3 ~
end
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& i. Y+ s& e5 ^  V% gP_B and P_C is similar3 ]; C) c4 y2 g0 e* @
triangular 30,60,90 min: O! }& L& n, ?* ]7 H
u 60,30 min% w2 X3 s: ~# j; l

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in P_C, you need to send to die.  l2 ~) U0 `' h1 d6 H" J% ~
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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.' _+ j0 D; U: E& B: m6 w+ r
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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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