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 x, L7 h- M* q5 q; C# }$ `+ v& s+ L
下面的代码不知道能否满足你的要求。
+ D& D) K, {8 `8 B* q7 U8 T% W( }# g, e& p) p, z
begin model initialization function- @9 ~0 ^' ~) _( n4 F- y& B
create 1 load of L_null to P_creation2 Y& @) D5 o) _' Z/ A
/*L_null is a load type of which the load create loads for the model.*/4 _! h3 W+ w1 l- r, O
+ b, a0 ]+ m# k return true/ w9 g: {8 ^- }- |
end& r4 F8 U1 c& q* S, a4 c8 {+ @; c- C
9 Q/ Q& J( a/ c% Q1 `+ ^4 j5 tbegin P_creation arriving procedure
7 x7 O5 n ~; h% U0 N* V while 1 = 1 begin0 q$ E# N# d" Q( k u$ U
wait for V_interval sec0 C: X/ \) v1 j9 V& ^3 f) U# ?; D
/*V_interval is the interval of creation of loads, fixed or random.*/- p* ~+ z& m( {$ G
create 1 load of L_load to oneof(V_p : P_process, 1 - V_p : die)
; Z# L0 m, O* {" o4 l/*V_p is the parameter of the distribution.*/
& S ~0 x8 Q n; t5 Z0 H% Y end
& E' V) B0 j, y, v2 O. k4 a: Oend+ s, x @9 x" F8 T* ?3 F
5 _- d2 j' z9 k9 b7 }3 o/ Cbegin P_process arriving procedure: f' d. [% ]& c
/*Any process the load will be in.*/
# p5 O# [1 G( U( Q6 | print "1 load created" to message
5 K( U; w) I4 c! `* P$ y2 ]9 Jend |