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?
1 [2 W+ D6 g5 K下面的代码不知道能否满足你的要求。
, _$ w# v" b) w5 h* p0 Y1 w7 m: V+ T& Z- v, q' y- h
begin model initialization function+ n2 n" |$ ?+ g& j' E5 ]
create 1 load of L_null to P_creation; b. z$ V; K, n9 X7 ~0 R( W
/*L_null is a load type of which the load create loads for the model.*/8 d& _: m% E- z7 \ H
+ K* [( q, \1 @4 @ j) N: g) D3 _
return true8 [! R; a7 d c
end+ c1 C: C8 C# u o5 `6 H
" @) ]- {& @2 Q$ L; B% d+ Dbegin P_creation arriving procedure( H+ m. H: V2 d# r j9 u- W# y
while 1 = 1 begin/ ^0 t( r/ q% n0 Y
wait for V_interval sec! A: A% u0 ^0 h; w9 ?* ?2 M
/*V_interval is the interval of creation of loads, fixed or random.*/
: H! l, X0 e1 }/ ?! E4 N2 g create 1 load of L_load to oneof(V_p : P_process, 1 - V_p : die)
6 U, E6 t9 r( P" m% P0 D/*V_p is the parameter of the distribution.*/
: i2 V7 h" _: m end/ X2 T9 _. u) t ~: H9 e
end! F! g9 h3 Y" x
% e$ e. h. x, F: g/ n
begin P_process arriving procedure
9 g* A! j2 `* b# z/*Any process the load will be in.*/
* V0 ?7 }, z; S6 o print "1 load created" to message/ i# f; ~* c x- Q3 W0 S
end |