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?; U+ b9 o. `: }: D# |- k' q" }7 w
下面的代码不知道能否满足你的要求。
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begin model initialization function/ c4 B" s8 }! n+ o0 u0 q$ c: n) M) Y
create 1 load of L_null to P_creation q8 g2 j: N7 ^
/*L_null is a load type of which the load create loads for the model.*/
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return true
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2 _4 [" Y1 ?% T2 @7 Q6 Wbegin P_creation arriving procedure
! D7 C O0 E8 C" Y# ]( T) [5 U while 1 = 1 begin
% S0 q4 P6 d7 E2 y% f, E' X, ] wait for V_interval sec: G& S% G/ O4 Y, @& g; P' i/ P# w$ I
/*V_interval is the interval of creation of loads, fixed or random.*/2 l/ `+ {8 r' m
create 1 load of L_load to oneof(V_p : P_process, 1 - V_p : die)" R7 |$ c' W8 z1 ^
/*V_p is the parameter of the distribution.*/
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end( U" A* _* X/ p+ s) F3 w9 ]
+ l! V% W Z: b& T8 S# K- _! Rbegin P_process arriving procedure& p2 z% ]' m5 K" G/ c# n' g a* D+ U
/*Any process the load will be in.*/
- W8 o+ b$ z& `0 D/ g! j, m' w print "1 load created" to message
: ]8 {1 Q5 R' F2 zend |