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?
$ i* w7 q+ ^/ q' i, c& n3 ~5 U下面的代码不知道能否满足你的要求。
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begin model initialization function' u, D; d) N" q1 d/ P& a$ S
create 1 load of L_null to P_creation
" c+ r0 c) i; `# K$ s! `/*L_null is a load type of which the load create loads for the model.*/+ S, E1 n5 ~ t
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return true
1 z. @& r) Q( m* wend
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4 R8 q4 r9 B' o! O3 pbegin P_creation arriving procedure
# V5 Z1 ?/ Z: D! o- O4 X- o- g while 1 = 1 begin" w; l8 V8 z2 k
wait for V_interval sec
1 M# x) Z! ~' R4 M" _" G2 C7 E, f/*V_interval is the interval of creation of loads, fixed or random.*/
* W& i8 ^# v, i create 1 load of L_load to oneof(V_p : P_process, 1 - V_p : die)5 ]# _- z0 u+ s' D, H$ m- \% P; D. I
/*V_p is the parameter of the distribution.*/
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+ F8 n, }: w2 k* G4 }2 g# uend
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; V+ {3 C# S& r9 q# E& \4 abegin P_process arriving procedure
" Y9 I- i$ E0 g0 P. t7 L# i8 n0 R/*Any process the load will be in.*/5 h! s6 Q4 d: d4 ]
print "1 load created" to message
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