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?% z) R' x% h5 ~5 H6 K1 e8 p) a
下面的代码不知道能否满足你的要求。
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begin model initialization function, ?9 c. H% I' H
create 1 load of L_null to P_creation
/ y. T, ^( C: I& Z) b' i! s/*L_null is a load type of which the load create loads for the model.*/
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return true4 j4 o. N# s! |+ n* ~
end
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begin P_creation arriving procedure; H, _8 Y; t0 o& C( m1 j
while 1 = 1 begin
; S, P4 y6 [; F, W wait for V_interval sec7 J9 M7 ^5 l- Q
/*V_interval is the interval of creation of loads, fixed or random.*/
k3 \! H8 T- o, t3 a: J create 1 load of L_load to oneof(V_p : P_process, 1 - V_p : die)0 C: @: H2 A$ M; K. _/ n( A
/*V_p is the parameter of the distribution.*/
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, G1 c- v' a) C* |( m3 D! w, {3 r3 ]( Mbegin P_process arriving procedure: k% _6 |( z' a6 `0 ]( N7 n# B6 E, x
/*Any process the load will be in.*/: m+ O$ p# e" v' ?0 b1 D
print "1 load created" to message) E) ]0 C% s; M. F
end |