本帖最后由 GJM 于 2009-12-5 21:43 编辑
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5 d3 z# S- r* p7 o" T1 J* o$ n8 X1 m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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2 ~& C# y5 }+ u% F1 T2 t( H8 H& D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!8 m& F" A3 q2 r
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begin P_something arriving
9 C* r# p2 A9 m p move into Q_wait
9 }+ p1 C# C" w5 I3 q move into nextof(Q_mA,Q_mB,Q_mC)1 i. i, X& p0 n1 K; r7 ?8 i0 P# t
use nextof(R_mA,R_mB,R_mC) for normal 48, 5 min; Z, B" g- g# N4 o$ P k5 F
send to nextof(P_mA_down,P_mB_down,P_mC_down,P_mA_clean,P_mB_clean,P_mC_clean)1 U( h K. F7 ]. O, H: M9 B
send to die4 ?6 x( k4 M. s% @( s. R* e" \
end6 H1 V! E/ L( r
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begin P_mA_down arriving
5 D, y# |# ^! Y, { while 1=1 do $ I+ {. l5 {2 P ?8 y9 i0 |
begin9 _1 r% t* ?. h. f$ s
wait for e 110 min+ ^* ^ s' X% x5 g. [) P2 I# w% T
take down R_mA5 t5 C" [6 n$ b* f% d
wait for e 5 min* K( [. H0 R9 D/ E# c o
bring up R_mA
; ?# j0 o. _# c. M8 s/ n. o$ F end
J. `* h. Y! V) L& z nend
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/ l6 J" J9 t E( f9 p% w+ o* v5 \. Hbegin P_mB_down arriving9 Y v- j7 ~/ \5 ?" e0 H
while 1=1 do8 \8 |8 e) v4 T. ^
begin* J3 k5 l' b/ v; d, b
wait for e 170 min0 `' R. N+ j a" _0 ^1 U
take down R_mB. ^( T, x( M* Q/ h! M: f z; D
wait for e 10 min$ l0 O; f" W" ]/ q; N
bring up R_mB
) [+ Y2 _. m) o( R4 j9 W, X. x end& x- E# A5 _1 H: z6 D* t
end
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begin P_mC_down arriving! T+ n S! v/ [! o7 N S
while 1=1 do , q; T7 N( X& \0 |: P
begin# f% H6 n* V& s
wait for e 230 min
: f) `4 \; h3 f7 C! G9 F8 I take down R_mC
5 P3 T# ]) Q3 g- A; _$ G wait for e 10 min; W# Q5 x9 z, o; ^0 }, c
bring up R_mC
9 ?5 B- F9 d) |' m9 ? end
S! W% P7 R6 Yend
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begin P_mA_clean arriving J4 w2 o. i( l& N0 z" j
while 1=1 do# G! x$ v# R; a7 ^/ f
begin
9 ?7 v6 F3 B0 v0 l1 W; B5 Z wait for 90 min/ M; X' \7 A- U" I
take down R_mA
1 v3 Z" a9 p1 v wait for 5 min' h7 ^1 u7 E) q$ [4 s+ y" h) h3 h
bring up R_mA, D5 \6 _/ L) C
end
; u# a6 v6 U6 `/ C4 ]* Uend% ^* ^5 u9 ^6 }. x9 N
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begin P_mB_clean arriving
5 b& Q; C5 ^8 I" P0 k* b3 y while 1=1 do
; o- }7 R7 y" H9 } begin$ b8 H" G3 q2 R
wait for 90 min8 D) f) K0 }& y$ ?
take down R_mB) g' n) r" i9 q1 n
wait for 5 min4 w" ~2 X6 f4 \+ j6 Q
bring up R_mB( v) D) b, S4 V2 _6 j1 W7 I) a
end
0 B: r) N) E! lend
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begin P_mC_clean arriving |) |/ m. D, L, U* l! c( B
while 1=1 do+ W0 z$ e4 \. A5 r# `9 g% q
begin
/ B+ ?$ G+ w6 j% {4 C. W8 R wait for 90 min8 a' I* Q" N' B0 q3 C; T
take down R_mC2 A3 k, q, P% d K! W! ~) J
wait for 10 min! u! B9 e0 H+ ~- Z6 |& g, l
bring up R_mC% v1 q+ D S% K$ m# q: z6 G) q
end
/ }; D5 G" Y5 _0 bend
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Exercise 5.9; G* H5 Y$ r' c5 z# z
* d8 u8 Y3 q W x# N. A5 w. M0 j
; r x. n" T( O' d. v1 NCreate a new model to simulate the following system:
! z3 A3 a% I! m7 y2 g( _2 v2 ZLoads are created with an interarrival time that is exponentially . H1 s3 q& d D9 y
distributed with a mean of 20 minutes. Loads wait in an infinite-1 y% n' E& H1 _' L, }$ X' u
capacity queue to be processed by one of three single-capacity, ( t3 u" j; R3 O ]% |& Z3 q
arrayed machines. Each machine has its own single-capacity queue + A0 o( O5 |, y h" A
where loads are processed. Waiting loads move into one of the three * g3 {( U$ s2 `; {( U3 C1 t
queues in round-robin order. Each machine has a normally : p6 ^" g, N# a: H# z5 t$ H; L" \
distributed processing time with a mean of 48 minutes and a standard & F9 o9 M6 n/ q
deviation of 5 minutes.
+ V" E) V x/ o8 A. }The three machines were purchased at different times and have
& o ~4 B8 W" Y9 c0 s9 A& @2 e0 B% |different failure rates. The failure and repair times are exponentially
/ l" A& }4 w2 v% J( L# Hdistributed with means as shown in the following table:
9 a4 I9 G( I \ k vNote The solution for this assignment is required to complete
( O0 D0 B8 j5 X6 p! Z$ gexercise 7.1 (see “Exercise 7.1” on page263); be sure to save a copy of
, A5 ?) g) l& G2 I! f2 D+ y% M& pyour model.
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8 {2 d1 w: _, ~( W6 ~8 vMachineMean time to failMean time to repair( e8 I8 ~4 |- \* _
A110 minutes 5 minutes& u$ P h+ J4 @: _
B 170 minutes 10 minutes. T1 w: _$ K& F; K
C230 minutes 10 minutes6 {* `+ U! i) K) u9 |
0 f1 b% c/ l) E6 p0 l3 h1 r( M3 mThe machines also must be cleaned according to the following
5 k2 H2 n: O4 d5 A4 M: l' Hschedule. All times are constant:
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MachineTime between cleanings Time to clean, U5 S: e+ g; |; c
A90 minutes 5 minutes* {# @: G+ Z- `0 B0 k
B 90 minutes 5 minutes
" J9 B0 K% L/ TC90 minutes 10 minutes* F0 d1 S E- d! s. r
, u' \/ R3 U) A4 @Place the graphics for the queues and the resources.
, i, P; x, R2 ^8 ^1 W* f9 T3 ?6 ZRun the simulation for 100 days.: c7 L4 i$ d) ~) j7 K
Define all failure and cleaning times using logic (rather than resource
2 U0 t& H1 `$ ]% Qcycles). Answer the following questions:
+ G0 W. U6 B( Y9 @! ua.What was the average number of loads in the waiting queue?
5 \3 B# w5 c2 `9 k, z6 hb.What were the current and average number of loads in Space? $ o' d; J! {. Z1 o4 \0 H
How do you explain these values? & p2 G+ m% b5 f# b" Z0 C
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