本帖最后由 GJM 于 2009-12-5 21:43 编辑
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底下是小弟做AutoMOD里面PDF练习的(Exercise 5.9)逻辑文件但问题是,程序只Run到Machine A和Machine B就没继续下去
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不知道是哪里出错,另外这题和Exercise7.1的题型类似,请问若要符合Exercise7.1的题意又该如何修改呢?请各位先进指导,谢谢! x7 W. J( j2 w" M( k
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- G+ ~# E3 d, s% l: q' ?begin P_something arriving+ I6 S' B( x* Q
move into Q_wait/ T# J/ \5 N* n& r! a. L9 H
move into nextof(Q_mA,Q_mB,Q_mC)) K x! z( H; L) C$ f. _' M
use nextof(R_mA,R_mB,R_mC) for normal 48, 5 min" l) P1 a$ s, @6 f- P* z+ I
send to nextof(P_mA_down,P_mB_down,P_mC_down,P_mA_clean,P_mB_clean,P_mC_clean)) y! k5 n# C9 u( c* b" g' U
send to die
. ~2 a; _, d: F( H, s/ J0 e3 x! Z7 oend
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begin P_mA_down arriving
/ k: q! t. d2 K8 w# O while 1=1 do , t |3 T/ P; b5 ?2 L
begin: u0 J5 }; b7 j' r$ t3 ~1 G
wait for e 110 min
# D4 {& G8 E! Q5 f take down R_mA
/ n& \$ C* j8 }. n J$ { wait for e 5 min# K, y5 {- E" l6 J7 [: ^
bring up R_mA8 X- d/ O8 o( ^9 d0 @
end# J. z1 u, g/ d9 p# i
end |6 k5 i7 m$ e. I' ^$ w
. g' E$ ]0 ?, y O2 V) y9 T1 e W5 J) {begin P_mB_down arriving
* e+ n1 H0 J+ r- L; ? while 1=1 do
/ V; \% V6 ?- X2 f S begin5 l, y* |5 ]! l5 U9 L- W6 ?
wait for e 170 min$ M" q! a8 v4 C( R+ K, A
take down R_mB% A; c( ]* V9 K: e. I
wait for e 10 min
) ~% }' }1 t0 ]8 o6 t' I: j bring up R_mB \& l4 @8 Q) g% T) x, d' o2 O
end! Y) T% M6 [8 y" z0 }! @/ v
end
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. o0 `8 u# |: L3 g* Y Gbegin P_mC_down arriving+ |- W) M6 k; E- X- u4 ~8 ~
while 1=1 do 1 V( b+ a& U" y/ S; Y
begin
' K$ K& f: P3 f# E" b* @ wait for e 230 min
" k8 r+ M o: C% i) L) `! f take down R_mC
5 X5 L, K' q0 w+ _* I wait for e 10 min. @4 k- J5 @. J) M
bring up R_mC6 F+ Y. Y0 X S8 d
end
3 A9 n) Z; W2 ~' wend
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begin P_mA_clean arriving
z/ ~1 L# @! j% e, R while 1=1 do
4 F( K4 G1 o8 `/ }0 B begin
2 q# j3 k( W' z7 q wait for 90 min
g& Q0 o9 W. x i5 i take down R_mA+ L4 D% ?8 N- F* T: ^1 n
wait for 5 min
9 _1 a" F' O: S5 |/ I bring up R_mA' B8 v# |& t x* H8 {" F- f6 t, a* u
end: A l/ r4 u: R; x/ O
end
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begin P_mB_clean arriving1 m* U9 P! f. ]0 e2 Q& j ~ O
while 1=1 do8 n; W+ b/ H# N7 ~1 E2 {! E% i
begin7 V9 G- Q2 i; t/ |0 @4 q- L
wait for 90 min
" s" Q% k/ \9 ^ take down R_mB$ a; b& z+ M( H+ R7 |- \/ g
wait for 5 min; x* P5 L/ n; s7 L z
bring up R_mB4 l, P5 |5 H+ {4 v) a/ x6 W
end. o- R) _& _% H9 i% G1 v$ ^
end
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0 h. z8 b) c3 T3 K" Hbegin P_mC_clean arriving
) U3 i2 S' A- b6 ^, B+ y while 1=1 do! k8 k. L7 e) Z) V( A
begin& o- ]( d0 m% K# R+ t, [
wait for 90 min
- q. M* v9 B3 `) s: t0 I8 { take down R_mC
1 q7 r5 h1 D1 P8 c* x J/ y wait for 10 min
' K- H& `& l0 m, x3 X7 [2 F# c9 k* Y bring up R_mC" P T" R4 k5 |0 R
end& Q, _& C. V: N. p) O( R. G: l( V( m
end
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8 L4 P+ t, \7 ]" \7 n" oExercise 5.9
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6 p# _. ?, q# y4 sCreate a new model to simulate the following system:- C( x0 e$ z: f/ @
Loads are created with an interarrival time that is exponentially
. a/ ~- ?9 C! _. g6 Adistributed with a mean of 20 minutes. Loads wait in an infinite-
0 U$ X7 g4 B) g; z- X. g* Tcapacity queue to be processed by one of three single-capacity,
$ Y d* v# f1 C( u7 G* Y/ marrayed machines. Each machine has its own single-capacity queue
1 N! F0 {4 F: ~9 o9 l5 O4 ^7 D awhere loads are processed. Waiting loads move into one of the three
1 c2 j( v9 r' F5 i; Aqueues in round-robin order. Each machine has a normally 8 M! @; D' u a6 K8 @
distributed processing time with a mean of 48 minutes and a standard
; P8 j% z3 f4 A' S2 Sdeviation of 5 minutes.& ?& j. p. l2 [% U
The three machines were purchased at different times and have 5 ~- @* @! D W: E! @$ `: T2 N
different failure rates. The failure and repair times are exponentially 6 [5 j0 E: z* J9 @6 w! j3 u
distributed with means as shown in the following table:
: @& Q, `0 q* S! S/ QNote The solution for this assignment is required to complete
6 ^( ]' b/ i8 ?: ]6 P6 `7 {exercise 7.1 (see “Exercise 7.1” on page263); be sure to save a copy of * w# Z+ P; A. m- L: I* k+ P& A
your model.
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MachineMean time to failMean time to repair
5 y4 w! D, U4 D' FA110 minutes 5 minutes
! y' B3 t# n4 K# m lB 170 minutes 10 minutes! h5 q- e2 b) j/ g3 u
C230 minutes 10 minutes+ l5 G( o1 X7 W# @1 U: `8 K
% ?/ y' p9 z6 ?% n
The machines also must be cleaned according to the following ( d, T i% S3 g) s0 Q% x
schedule. All times are constant:
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MachineTime between cleanings Time to clean
( \. b' k6 Q! U( ~A90 minutes 5 minutes
1 f" N( s/ q) zB 90 minutes 5 minutes6 B7 s4 n! I. `1 t, x/ r
C90 minutes 10 minutes) m& A/ x6 P2 ?4 w
+ e, ` ^) }* V4 zPlace the graphics for the queues and the resources.
4 a$ a/ ~* @# l* URun the simulation for 100 days.
4 @6 f7 @' [) ODefine all failure and cleaning times using logic (rather than resource % I/ r$ C5 V) d+ D; n
cycles). Answer the following questions:
; {8 z: K+ j: |4 Sa.What was the average number of loads in the waiting queue?
# {: U% [0 _+ M/ H& |: Jb.What were the current and average number of loads in Space? * P3 l; R% c# }% q+ o( m4 I
How do you explain these values? 7 b0 K: A8 c! A E
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