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?% h! r, ^& T+ b! J- G% h4 ] }
下面的代码不知道能否满足你的要求。
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begin model initialization function
4 n/ ?4 D, |; W2 i3 r create 1 load of L_null to P_creation5 [+ V5 z: j6 f1 A" B" E5 ]
/*L_null is a load type of which the load create loads for the model.*// X m, t4 t/ t0 Q5 b4 r% y
! F3 ^! u: M2 w+ c. g return true; _ f L' C, ~# t: R
end- ]* x; e4 W6 x3 @* Y
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begin P_creation arriving procedure' G, y, S" p* ^# |9 |; M$ O
while 1 = 1 begin/ y3 c' m4 D3 g E! g/ u
wait for V_interval sec
' |& B4 O; {; k0 @' i4 F* T" W7 N3 L/*V_interval is the interval of creation of loads, fixed or random.*/
& `$ Y6 K& [% O; i4 p, d, f create 1 load of L_load to oneof(V_p : P_process, 1 - V_p : die). f6 @* v) k: [# {. ~
/*V_p is the parameter of the distribution.*/
1 V% S. Z# Z, G h' b6 S3 S$ \" i end
' |& X3 ]" J9 Q( c. \) b( Yend
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( H4 |: q3 D7 U3 P Fbegin P_process arriving procedure) I) \2 z- c6 G7 n5 k' u. b8 A
/*Any process the load will be in.*/
( X' v4 A) t- Z$ Q' c( U& U print "1 load created" to message
# o% l& X1 m" T4 Yend |