什么叫“到达为伯努力过程”?是不是说,隔一段时间出现一个机会,产生或不产生load?
1 o5 w/ P) s6 R% I9 I下面的代码不知道能否满足你的要求。& `& s7 v1 }. A O# \( I" S$ |
1 Y; o9 L/ H9 b, j, qbegin model initialization function g, V2 n# Z0 T& D! c% _+ K4 M9 U
create 1 load of L_null to P_creation
# [5 M3 w* l, O L3 s& P/ q/*L_null is a load type of which the load create loads for the model.*/5 d9 x0 L# U$ M0 T9 L- |$ a
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return true# c9 f# J' A0 N, m+ m
end) y; t0 a# b" w: M) e+ I/ S
& w, B. ?% Q5 m- q* qbegin P_creation arriving procedure% S" {. ^1 ? b. N
while 1 = 1 begin2 k# ^3 S% D" B" q! x
wait for V_interval sec' Q6 ^0 f' R$ b+ K( D5 ?# \2 _
/*V_interval is the interval of creation of loads, fixed or random.*/
5 p- i0 j u1 E2 W& t$ \ create 1 load of L_load to oneof(V_p : P_process, 1 - V_p : die)& G H9 y. E" T: N0 f% S0 L7 m
/*V_p is the parameter of the distribution.*/
* m v6 x' F) {/ A. E3 T end
* ]" G* p/ J, V, v! Qend
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begin P_process arriving procedure
Z' \$ r- `" ~/*Any process the load will be in.*/
q& Q( G8 R/ q' ` print "1 load created" to message$ s p+ `$ |' c
end |