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?' J& q0 p9 t" Z' q$ f6 E, |( S
下面的代码不知道能否满足你的要求。
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begin model initialization function
( ?6 N2 t |9 i8 C0 E create 1 load of L_null to P_creation: a6 b; j' C3 }, Z
/*L_null is a load type of which the load create loads for the model.*/1 Q3 e% S: T; O% P: s
/ ^% {3 i0 }) q9 u$ I, R return true
8 D4 |1 f6 | z) D( L) Q, N, Z0 aend3 ]5 E3 Y( D0 O; N+ v
; Y9 D% N8 }3 i" b! qbegin P_creation arriving procedure
( x6 T8 h( u. `- L$ z9 N while 1 = 1 begin
9 ~( f6 f" y1 S* Q, p) ] wait for V_interval sec* D/ K3 g# t) D( \ B. k) l
/*V_interval is the interval of creation of loads, fixed or random.*/4 o8 j- ^7 j) l3 b
create 1 load of L_load to oneof(V_p : P_process, 1 - V_p : die)
0 h2 J. \( C/ X/ b& K3 U# c6 T/*V_p is the parameter of the distribution.*/
& |4 Z; A0 x# R. W, ^2 o end& v- u, r$ |2 k& V: k; j" J
end
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begin P_process arriving procedure
5 v# O! ^( X* s/*Any process the load will be in.*/! H- f. K6 E' D5 J9 |8 o& i% V4 s
print "1 load created" to message
" ^3 `6 y8 R) D/ q' E! p* s7 Iend |