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?& Y" S; r: f9 `4 h# |" y! M
下面的代码不知道能否满足你的要求。+ R* X# C9 K! d7 P$ c; s3 D
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begin model initialization function
0 ]: \, w, ^. t* J& R- q3 f, Y create 1 load of L_null to P_creation
; j0 o W0 J- M0 H/*L_null is a load type of which the load create loads for the model.*/
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return true# o: s6 h0 u. H
end. {9 w: c+ f1 d3 ?% v3 v3 T5 o
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begin P_creation arriving procedure8 \$ d9 t! v% E
while 1 = 1 begin
1 d3 Q+ d4 p6 T) N wait for V_interval sec5 I; L O8 G7 M2 y$ D i& \* S
/*V_interval is the interval of creation of loads, fixed or random.*/
0 A) h( Z7 O2 }) S8 T create 1 load of L_load to oneof(V_p : P_process, 1 - V_p : die)3 [3 h( l# E; b' M/ f9 w
/*V_p is the parameter of the distribution.*/
" y( f# U' o* Q9 _: L end$ E5 Z2 @) U( G) n! M, f" B; I
end
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6 `9 J2 i1 c4 l/ s7 d* Rbegin P_process arriving procedure
7 B! Q& Y( J* ~" |* ?* n' o/*Any process the load will be in.*/5 m5 u2 O. e% I( d! ?0 P
print "1 load created" to message
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