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?# O C K1 s; @6 k2 Y* `0 _- t. O
下面的代码不知道能否满足你的要求。7 N. W6 B* W# [& _: L- z. S ]4 m
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begin model initialization function/ }% \6 F2 x# f; o1 s
create 1 load of L_null to P_creation; ^6 i; R7 q8 | F& x$ A
/*L_null is a load type of which the load create loads for the model.*/: x- e V7 ]$ r3 x) G0 i5 h
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return true, K- m0 |# S/ T; g2 r0 @* u8 \
end2 p5 E: N. W8 o: J! v+ s6 ^& [# G# \
: {1 Q' a* g! zbegin P_creation arriving procedure! x( r1 n9 w" M1 c& {6 w, ~! A
while 1 = 1 begin2 y, u2 t' Q! f) a* T7 a- Z
wait for V_interval sec
( h7 C# y' N @" ]$ z, K/*V_interval is the interval of creation of loads, fixed or random.*/
% y @2 z8 E- I. }' ?, Q# H" m create 1 load of L_load to oneof(V_p : P_process, 1 - V_p : die)
2 }$ B5 P, J" g% N/*V_p is the parameter of the distribution.*/
* c9 }% x/ C$ x5 x6 K8 a; I4 V8 ? end
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: U7 W( P6 B1 ^, e2 o) t$ Fbegin P_process arriving procedure
) q/ x3 ^6 {' N" Y/*Any process the load will be in.*/
9 w' p$ w: j- } L6 ^5 g print "1 load created" to message, b& Z- P4 P2 K4 e
end |