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?
7 q, \7 C# F! s: B7 \6 G下面的代码不知道能否满足你的要求。
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9 v6 L" O: }4 m: w# q: dbegin model initialization function# c0 }+ ?5 z( e" `0 d& |1 {6 d$ w
create 1 load of L_null to P_creation
" N* a; O* i; ^. E, I/*L_null is a load type of which the load create loads for the model.*/
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return true# q8 ~# M# P, N( P+ E$ g7 f
end
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begin P_creation arriving procedure
: o8 ?: Q. H$ X2 w, B# x, t: a while 1 = 1 begin% ^; D g) M8 ~( V, h
wait for V_interval sec
, W" o }1 y9 K0 @# Y/*V_interval is the interval of creation of loads, fixed or random.*/# `. B) q$ b# x# T7 p: c" e
create 1 load of L_load to oneof(V_p : P_process, 1 - V_p : die)6 q; z& `; l& h0 [6 s) E# n, `1 ?
/*V_p is the parameter of the distribution.*/
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7 D, S+ T8 Y5 z* P! e G# v6 e# R! Vbegin P_process arriving procedure, t5 S/ Y L. g" n! K
/*Any process the load will be in.*/
; }4 A, S1 Z1 z print "1 load created" to message$ U1 D$ M0 h+ o! e) ], }, S
end |