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?
! e. C, S8 e& ^2 u1 p8 }下面的代码不知道能否满足你的要求。
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( @, z6 L. ~' J7 d9 Z9 \begin model initialization function; Z: I: \- i. S; M/ o; s! D
create 1 load of L_null to P_creation1 H" L1 P1 [9 n$ e# M1 r
/*L_null is a load type of which the load create loads for the model.*/7 R# N. q' U, ?. J, x& F# E% v% F
" f# d$ [) U/ {+ p3 U, f return true
2 N7 h2 z$ o' ~end
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6 a9 {+ t5 z0 e$ ?- K! Gbegin P_creation arriving procedure
4 m) z+ I+ r# }3 ~/ c/ Y while 1 = 1 begin# G/ N% n" `. W$ w
wait for V_interval sec) X/ i( l2 U; w7 o/ n( x V1 [8 c, b
/*V_interval is the interval of creation of loads, fixed or random.*/
0 K) n ~; H9 [" e! n# v# g/ K: H create 1 load of L_load to oneof(V_p : P_process, 1 - V_p : die); x: D, `3 w6 R0 S! E6 R1 e
/*V_p is the parameter of the distribution.*/6 }- v0 l% E( A' X9 u
end0 G$ z3 V4 _7 b
end0 ?1 _; [) H0 T9 Y" [6 j
/ _# T+ w- ~4 }" R6 k. ^+ Ebegin P_process arriving procedure6 \& r/ W! P, \( @! h
/*Any process the load will be in.*/2 Q- J2 D& h$ F& s* r
print "1 load created" to message
# V9 i9 g. C4 L7 k- fend |