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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,
1 j' A& ^1 ?& E/ D& R 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.
! a: N& P0 {2 E$ K7 [" Z. z Loads are processed by each operator for the following time:% {+ Y4 b$ u, f" w. i3 {, p
Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
- G% s' v( M3 n1 _1 M. h 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.' f% Y7 c# Q8 W! j
Worker_C does the job in a uniformly distributed time between 30 and 90 mins./ K) B1 ?* w0 O
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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& h' B; L) L, r0 r) X- Y问题:: O) o/ y8 o# E9 q+ L
After running the model for 10,000 days, what was the average number of loads in each process?9 Q0 c3 p- m/ }$ @! p. u" J
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不胜感激! |
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