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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,
" V( @1 u' N) d1 f( C: a 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.
+ F" P2 u$ H# _ Loads are processed by each operator for the following time:
& F0 w3 i# Q* n! _$ E% e Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins." @4 {- G) ]. H& G
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.8 x. m2 g& u- T4 l( X! ]
Worker_C does the job in a uniformly distributed time between 30 and 90 mins.; l- j E4 }- I3 O7 R5 Z+ Y4 v
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.+ q% R& I- v2 X( H( [: r
0 E4 P, r; T/ C S. _5 {问题:
9 ~6 }7 \8 Q7 t) a" \After running the model for 10,000 days, what was the average number of loads in each process?/ e9 }3 }# v" x
" `9 E9 n' [+ T+ J3 o2 x+ g. c
不胜感激! |
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