本帖最后由 GJM 于 2009-12-5 21:43 编辑
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0 Y3 c$ t+ k" @4 g0 }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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" `$ a. B% S8 k2 [' B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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L7 b* H8 ^5 u3 _9 c; H$ s8 b" Pbegin P_something arriving
9 [1 m) _/ W5 Y, F$ z0 q' Q, k move into Q_wait
0 [& G2 j# o% H# T move into nextof(Q_mA,Q_mB,Q_mC)4 q$ c4 P' q6 j' P% |: g. v7 g
use nextof(R_mA,R_mB,R_mC) for normal 48, 5 min) n1 H7 B; O6 U, w
send to nextof(P_mA_down,P_mB_down,P_mC_down,P_mA_clean,P_mB_clean,P_mC_clean); f G, k7 o6 x3 Q4 |
send to die
3 |: J, `. n+ j, u3 _8 _end
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) D) l# Z' ~7 R/ pbegin P_mA_down arriving0 Z/ ^3 d0 D0 b* g
while 1=1 do & \7 B9 H0 E- J8 O
begin
+ |# f5 |4 }7 Y wait for e 110 min/ k \8 Y# T" N/ N L7 r
take down R_mA5 B5 Y2 n" _& `( T
wait for e 5 min2 U- L8 z1 P; Z0 A$ `
bring up R_mA6 h- d, M, W1 H5 H, ? D6 z W
end
$ x1 D0 O' `: h& ?6 E/ K3 Vend
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* T8 a. x8 o" g1 D8 m& L& fbegin P_mB_down arriving
- ?% o; o9 ~5 g5 L+ X8 U C4 v5 Y while 1=1 do
" q3 H& ~0 k, G begin
- |& ~' O( J- F! F; [) y# ~) a5 `4 i wait for e 170 min
3 n" R' F4 }0 V, @# i take down R_mB
6 V; B t. j6 [+ I$ N wait for e 10 min' O& f" E: W4 v( |( K
bring up R_mB
/ \" a7 M( K$ y& O8 L end# G! J& g+ k) M9 p% J% L% c# o
end
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begin P_mC_down arriving
$ o8 H# D/ c- n$ }0 }& Q while 1=1 do ; @3 v. R; G4 | Y& Q
begin
6 E3 M& h! B- i( j ^7 o- | wait for e 230 min
/ `: v8 f) O) ?0 Y take down R_mC, }! \3 u2 T/ j! A
wait for e 10 min3 s0 X6 @: W8 _, s: d9 D( H
bring up R_mC1 ^: _/ A* B' n3 k: [
end
; E' F$ v1 ?% ? _end
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6 h% q0 e- y: ]/ G, Y# {( i) sbegin P_mA_clean arriving
v# {) `- r X# v/ l, Z1 n. _ while 1=1 do' I5 I, P% M% M
begin* l1 n8 c) P$ ?' h" E% e
wait for 90 min
! g# j! d1 H. L1 l8 }6 l7 D take down R_mA# i3 v/ v6 i" W
wait for 5 min
+ f8 b7 H: p+ r2 G) v3 E bring up R_mA( J4 r+ B: ^/ L( B$ I- `1 D" T6 d
end. h" Z& s, i. _) q& N. K e( ]
end
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begin P_mB_clean arriving( l+ V* t& ], w1 e/ A: T
while 1=1 do3 o" M9 H( V0 y! g/ ?2 E7 R$ ?1 n
begin: N, i' ~3 `9 w) y B
wait for 90 min
& x1 G! f6 \8 Y- r1 k take down R_mB
9 o$ j" D6 c( ~% n8 F6 r wait for 5 min) j8 z( X0 U; I9 c
bring up R_mB
1 f9 l% z0 T# h# X end% S) r; D3 n' \$ L }2 l, b
end3 u. {$ V4 }' Z7 ~; A
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begin P_mC_clean arriving- A% O3 [1 D5 w2 r, k2 K. q% ?
while 1=1 do
7 I0 }. Z% ?, n& I5 {! [5 c0 e- D9 { begin
" ?7 H" ^) |, u+ |! B wait for 90 min- D( V) P' `, ]( j5 Q
take down R_mC% M; T" p# Z. X$ i
wait for 10 min
; H D# _# t0 g& G' U( X5 h* I0 r* s bring up R_mC+ v* J) H' X) n0 `
end
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Exercise 5.9. Q1 Z# {) Y7 M3 C9 Z! G
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/ C% k) }' Q) n+ k4 ~9 B) ICreate a new model to simulate the following system:
% J+ i% B9 f3 r9 t0 x7 x4 ^9 wLoads are created with an interarrival time that is exponentially # f0 x" E2 W* d' d# @
distributed with a mean of 20 minutes. Loads wait in an infinite-0 f; U* o. B# @- C9 P! B0 A" r
capacity queue to be processed by one of three single-capacity, 2 l1 q2 p; J1 I9 c0 j& E
arrayed machines. Each machine has its own single-capacity queue
9 y# Z6 D1 B6 ^. {8 w, Vwhere loads are processed. Waiting loads move into one of the three
* K4 n0 T& B1 ~# Z% squeues in round-robin order. Each machine has a normally
0 S, [$ q# B5 q5 ?; i) R5 q( L2 Tdistributed processing time with a mean of 48 minutes and a standard
1 j1 m3 d. d0 d8 }6 P8 e2 ~deviation of 5 minutes. g% ^0 d. z; K- m" ~* A) V2 X
The three machines were purchased at different times and have
( a$ [7 U, B% R7 t* edifferent failure rates. The failure and repair times are exponentially / e$ K9 o) I1 A, X, G
distributed with means as shown in the following table:
4 s8 b; t! m( zNote The solution for this assignment is required to complete
1 t( ^5 {3 q8 ~ o, X' Eexercise 7.1 (see “Exercise 7.1” on page263); be sure to save a copy of # h' F% P8 M1 |& d
your model.
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MachineMean time to failMean time to repair
1 b9 E# z2 K' BA110 minutes 5 minutes7 t/ \. g& Y/ ? ^1 b1 d1 I
B 170 minutes 10 minutes& U3 O1 c. `. [3 _+ j
C230 minutes 10 minutes
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The machines also must be cleaned according to the following 0 |, S4 l: y5 m; s
schedule. All times are constant: . N; ?; v W' M# i
, q1 ]9 z% R. A! m$ mMachineTime between cleanings Time to clean9 ~- u& x8 P9 M4 y. {; I
A90 minutes 5 minutes3 U3 p: l k7 Q* h# A5 j
B 90 minutes 5 minutes
- P4 `" J" u2 s/ k Z! t2 I! ]C90 minutes 10 minutes2 `& [( U% m! p4 ?7 H, V$ a O) R
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Place the graphics for the queues and the resources. - K( A1 M# y9 i$ ^, u. T N! N
Run the simulation for 100 days.4 S# s" `: [: t4 U" M9 v8 R
Define all failure and cleaning times using logic (rather than resource
( M f# {% W. H: E6 lcycles). Answer the following questions:( T2 v( V# ]4 w: d k) ^
a.What was the average number of loads in the waiting queue?1 {/ j1 q- Z4 |; w/ }- e
b.What were the current and average number of loads in Space?
6 y8 g7 j# M E+ \+ O, zHow do you explain these values?
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