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?3 S' g5 y3 K! o% {
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 N9 f6 r0 S, S6 N, X+ E, m4 x6 R1 j create 1 load of L_null to P_creation
" T2 e- B1 C. V/*L_null is a load type of which the load create loads for the model.*/# @8 i* R& y" K3 J1 I9 K, ]9 Y' E7 J
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return true# [) \, B) m/ W# h
end3 i. {& e) T+ Z5 l: |# x" O
, f: X. j) X" ~# V2 d! l5 dbegin P_creation arriving procedure9 h' M$ g/ G7 t5 s" ]7 N
while 1 = 1 begin& f$ M' Y: X( F5 j- p( L. n
wait for V_interval sec
8 `5 {/ ~' c: g/ J6 O. `) i- S/*V_interval is the interval of creation of loads, fixed or random.*// `, k/ e0 A4 V" u
create 1 load of L_load to oneof(V_p : P_process, 1 - V_p : die)
" q9 [" H: ~) S/*V_p is the parameter of the distribution.*/0 R* l: s! z( m; l" C
end; v3 Y8 @5 E( ~* u# P
end
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. Y: W5 ^1 Y2 V- g9 G9 ^& r& N! ~begin P_process arriving procedure- s/ n: Z( T# U' w. v6 Z k
/*Any process the load will be in.*/. E4 M% D* o' u" E
print "1 load created" to message+ a% d1 U M. Q N
end |