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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4 K; M0 k. I& r$ k0 z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!
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5 v# w5 i/ H' n; W5 \--------------------------------------------
9 Z( B3 M4 L4 a* n8 a; D( B7 @begin P_something arriving, M% A/ h0 I) Z2 g2 M$ p6 z6 z
move into Q_wait [1 v5 Y- V7 m+ C5 Q9 N! d) _
move into nextof(Q_mA,Q_mB,Q_mC)- t, Q9 R) O. V: h: F+ k: P$ n
use nextof(R_mA,R_mB,R_mC) for normal 48, 5 min
4 n& k! b- m0 [8 \' R' r send to nextof(P_mA_down,P_mB_down,P_mC_down,P_mA_clean,P_mB_clean,P_mC_clean)
# A0 `+ J8 U& k' w- r: ^/ P send to die
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begin P_mA_down arriving
# X, N' ]9 k P) J while 1=1 do 2 Y( W. K* B4 ?+ ^5 X* h! |
begin
; X* z0 ?/ v' H+ c5 ]! m1 m wait for e 110 min
4 _; }0 @; C. O) N$ Z take down R_mA
* f# g/ h3 {0 t( d Q& r+ { wait for e 5 min0 } F- d- i+ B% K7 }
bring up R_mA. ~" x9 |. C6 R Z7 i% s% S
end: i& `$ B# Z9 h. I5 b
end
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begin P_mB_down arriving2 ?5 W7 {+ l5 O0 F% R7 r, E
while 1=1 do
( F6 Y) S: H. `3 U# G) v! O begin& X! ?" R% p+ |( J
wait for e 170 min8 B- @8 P( u) j" B6 D5 j) h* {
take down R_mB" t! H9 }8 ]% B. Q# E
wait for e 10 min
0 d/ _8 n! ~ k) | bring up R_mB
, }( P, r" c/ \* ^' L5 s/ u% B! l end' u. I2 z. f; V9 V! T' A6 s
end
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. z. t4 r- w, I8 [( `/ u( ?begin P_mC_down arriving
9 l3 z" }. X/ Y2 L+ @" t' Q% W while 1=1 do " K V7 _1 ?3 u5 ^7 j
begin
2 u/ T) a' Z6 H! ^1 C5 m wait for e 230 min; V! s$ t& P. m/ `
take down R_mC
$ ]4 a' p4 K; @$ u& q+ T! r6 {: k wait for e 10 min9 X6 g! w3 X! O6 k O1 z" J; X. G
bring up R_mC! @ ~" G4 l! K/ X! s+ G
end0 O5 E& H! U- S* D
end- j! f; K2 X5 V4 h" R! N
8 ~0 ]6 l- N5 x7 Z/ e- m) w: _begin P_mA_clean arriving
8 n. f8 u" u7 C- Z! m while 1=1 do4 S) C0 ]& H* y
begin# v6 F3 `, o. w& }! u V) T. K
wait for 90 min9 u, p) M5 n. s
take down R_mA
; W& A: Q+ T% c2 i2 Q wait for 5 min
6 z& p4 n- t* k# A8 N6 g bring up R_mA' C! M1 A- x) M+ J" ~+ N" T% ?
end% a3 a/ c! c) o9 @
end' r4 Q! a- j# y" M2 N
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begin P_mB_clean arriving$ W" i1 e2 D# L* L
while 1=1 do
' N w0 e- h8 P! M begin
" v' g, e% U- N+ P3 B' N2 x wait for 90 min
0 z4 C1 Q& Y4 S take down R_mB1 n/ |0 T# X. W% y
wait for 5 min. o6 _2 D, k; J
bring up R_mB0 O7 w/ e* E }& U4 G
end1 Y$ Y- |& x8 M0 m/ E+ w3 |3 B! @
end
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begin P_mC_clean arriving
1 O8 i; M) Z0 G' r0 A while 1=1 do3 U; t3 i7 X2 y C- J, ]. F' x
begin
( }4 G0 t0 Q2 V# w wait for 90 min9 P0 P5 w r" V& X
take down R_mC
, D- R. g4 M }7 B6 V- } wait for 10 min
, \& v' x9 P( {: H# c7 R bring up R_mC( \! \' d& h" B% ?: m
end' p+ ]/ [; O# F6 j. X; ?
end# C! X) R* ^9 U4 D+ K
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' E# r6 I6 o7 }Exercise 5.9
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) G$ J% A! L5 iCreate a new model to simulate the following system:
2 d: ?& }# Z/ w* \* Y' hLoads are created with an interarrival time that is exponentially
8 J2 R+ x/ J1 @" f U" b$ Adistributed with a mean of 20 minutes. Loads wait in an infinite-
$ ?; P% d; k& k; K$ h4 e) Dcapacity queue to be processed by one of three single-capacity,
. Z9 ^5 s5 N4 j/ Karrayed machines. Each machine has its own single-capacity queue
; O, \2 V* S, _( W' |9 ~$ [where loads are processed. Waiting loads move into one of the three & K( }4 [/ i; [: {6 Z, a0 w
queues in round-robin order. Each machine has a normally " O4 V& D2 w) J# t* f
distributed processing time with a mean of 48 minutes and a standard
2 [9 [8 R3 G1 p: U* q9 Edeviation of 5 minutes.
3 J" W6 h2 E8 b( g. h: NThe three machines were purchased at different times and have
1 s9 j" W- a. |- d: |2 a- m; {different failure rates. The failure and repair times are exponentially
* y2 o' a5 H! _+ t7 @distributed with means as shown in the following table:
' L5 N ?/ t! V! e" M- l* \. ^Note The solution for this assignment is required to complete - x0 f( Z h$ X3 T/ o8 k1 b
exercise 7.1 (see “Exercise 7.1” on page263); be sure to save a copy of
+ {* B0 Y4 O, B, e2 t& |2 Tyour model.
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% i" S( ?: U2 |1 R& `' o2 v, FMachineMean time to failMean time to repair
0 I; m, V/ ^6 N, S+ Y5 N; wA110 minutes 5 minutes
9 I* E4 @0 ^- U: r5 M& KB 170 minutes 10 minutes
! j$ h% }& E7 r; y6 |0 z+ ]C230 minutes 10 minutes' d/ f( e9 g# Z! D( U$ r
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The machines also must be cleaned according to the following
' q) w0 t9 e; jschedule. All times are constant: 7 ~8 W$ { {$ N) A
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MachineTime between cleanings Time to clean
6 K1 s: d$ n( i4 MA90 minutes 5 minutes
& f2 C. w: K4 Z% W8 |B 90 minutes 5 minutes
+ I6 o" P- k `/ o1 W1 ^2 FC90 minutes 10 minutes
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Place the graphics for the queues and the resources. 2 p! O7 K9 N, q, b2 X* p! j" a* t
Run the simulation for 100 days.; Y: w4 m( i9 ~/ f1 J$ [2 N
Define all failure and cleaning times using logic (rather than resource
- ]1 |% r: k ^' j. U. {cycles). Answer the following questions:0 G' g- Y, }/ Y6 l2 O1 {/ q3 l
a.What was the average number of loads in the waiting queue?
+ G# p9 v& v" s2 R1 Cb.What were the current and average number of loads in Space?
5 W6 i$ _! K! ^' W% n6 Y5 E/ n/ T- |How do you explain these values?
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