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?3 v+ Z: d2 ?& l: w! j
下面的代码不知道能否满足你的要求。; E, K. x( z$ `# V
. e9 _ O: V9 ^* q, n9 M* R7 W2 Pbegin model initialization function$ v' o, c/ A3 f; O$ N
create 1 load of L_null to P_creation# {9 ]( A8 U: T+ B
/*L_null is a load type of which the load create loads for the model.*/0 }! F. ^5 `% `' f
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return true
, Z4 Z ^. E+ p! n1 n& k. u. |1 Aend
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begin P_creation arriving procedure3 x9 J3 S0 H* |: f
while 1 = 1 begin6 @( \# s/ q$ t4 M
wait for V_interval sec, K, s7 |9 K/ I0 X
/*V_interval is the interval of creation of loads, fixed or random.*/4 z. z! E J1 H* b- x* r, ?* k
create 1 load of L_load to oneof(V_p : P_process, 1 - V_p : die)
6 a6 W& ^1 @ U& E1 E" M0 e/*V_p is the parameter of the distribution.*/
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end) E) Q+ ^1 m# I( [7 h) h& |" n3 B
3 n! M* W$ A% Y8 W8 abegin P_process arriving procedure) \/ Y# @7 ]: b, \, W* [; N& B q
/*Any process the load will be in.*/2 {" k4 G3 T6 L. o" F' {0 U7 c
print "1 load created" to message3 |* |' L4 F/ H0 m, V
end |