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?" i5 Q; K1 r) c0 L; n
下面的代码不知道能否满足你的要求。4 i3 W( j3 U& k6 E" R/ p* @6 ?
! [, W$ y% o# _4 ?) Q/ F! Ubegin model initialization function
/ b1 z5 l. [% N2 I create 1 load of L_null to P_creation6 m/ X; |# b# b
/*L_null is a load type of which the load create loads for the model.*/, V9 Z: h2 ~8 x$ e/ V
N) n0 Z: g6 R, { return true
# M* f$ r& M( c2 S8 \7 M' _end
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6 i1 L; p" H, y# Fbegin P_creation arriving procedure" u$ C5 q: n( P" Y9 W
while 1 = 1 begin
& }5 v+ E8 y( Y% K8 A wait for V_interval sec
! q9 _4 n1 U) b. S; N/*V_interval is the interval of creation of loads, fixed or random.*/
2 @5 x! Y! c4 k create 1 load of L_load to oneof(V_p : P_process, 1 - V_p : die)' R9 |/ n' M/ ^4 m4 ~1 o* t6 h$ d
/*V_p is the parameter of the distribution.*/
" c# P& z: ~, [" m# e7 `7 u end
: ]- M# d, p2 J2 t+ V6 w# @end
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! g5 |2 F* s" Y+ `# E9 fbegin P_process arriving procedure
$ ^+ {+ ]; ^3 N' [1 I) V/*Any process the load will be in.*/4 P, y) d4 O, |. y- u
print "1 load created" to message" `# ?" D3 W/ B& U# D4 q% ?6 M
end |