本帖最后由 GJM 于 2009-12-5 21:43 编辑 0 k/ _0 t* f) x0 T2 ^
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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0 k8 |2 x) P* g* N5 N ^( W* u
) C5 I' n% K d; 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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# C3 u# L1 C* M w--------------------------------------------
7 F1 @- {" P- x+ o' kbegin P_something arriving
: Y% W. Y$ ]: z! X1 U/ l: u move into Q_wait
2 }$ q, y! p1 k9 M move into nextof(Q_mA,Q_mB,Q_mC)- L8 K3 E' l& W: e, G/ W
use nextof(R_mA,R_mB,R_mC) for normal 48, 5 min
0 L, V: x$ @2 O' P% ~8 C- T( K send to nextof(P_mA_down,P_mB_down,P_mC_down,P_mA_clean,P_mB_clean,P_mC_clean)- y1 U7 ]$ @% |' e
send to die: c) B# M" W* s
end
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! b* v" S' ~2 o1 n+ Rbegin P_mA_down arriving* F+ O' D g. t3 A$ B
while 1=1 do . A" l* M$ u: c- |. g1 Q
begin: v1 t. z! v: _8 l
wait for e 110 min5 h" M; H( u8 S* z: r2 k0 m& L5 W. l
take down R_mA8 P. C4 o+ i$ q( u4 z
wait for e 5 min" p; [: i2 d+ q |' x" s" G
bring up R_mA2 J8 s. h7 @$ b5 g$ u r
end
' u, o& p9 f8 o1 p [end" E9 u) O4 O' V* ?
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begin P_mB_down arriving
* |, X6 J* J8 x1 `* y while 1=1 do
% _; b9 i; {9 b* v* V0 I begin
9 A+ r! U( [+ C4 ] wait for e 170 min
% V9 [% V0 v, @/ `' Q6 G0 S take down R_mB
1 v+ ]& n3 l1 W" P wait for e 10 min
3 W# G) \) R _" @% f: g bring up R_mB
/ Z( {2 _2 }) l: H6 V8 e; b) J end
) Z+ i& n: c) R# G8 Send0 G5 Y3 | O: T9 x7 ?
$ x3 B5 M" m2 `- C8 t6 q
begin P_mC_down arriving: G# ?0 A" F+ A- N
while 1=1 do
8 o) o% L' E) z1 }5 z0 W. F begin J1 b1 U( q& w' y9 x
wait for e 230 min9 L# U" m: _! n
take down R_mC+ @7 r: [* Q/ p2 d$ ?6 ?0 n+ t
wait for e 10 min
7 S, n$ O" K* Y7 a: ]7 \: l bring up R_mC8 P- a4 ~6 V- p5 K: Y& Q
end
2 z& M5 j' p7 Rend
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begin P_mA_clean arriving
/ I Y- b; n* O' b while 1=1 do
8 V3 g* N& F5 r) \& F8 ~ begin
" x% ?, l& H2 X4 I wait for 90 min( [0 k0 K: |0 _. q8 z7 B8 j! [
take down R_mA3 D" z8 A: [- b/ E" h% t" e
wait for 5 min& ~5 C" a% T* h. Z& [ A+ b
bring up R_mA
! ]$ ~0 Z( G/ y end
, {8 u U: T9 Y8 P0 s+ |% |end
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begin P_mB_clean arriving0 O Y2 y2 t* J& o
while 1=1 do
; W. R7 s c' m begin) N; M% C: k7 l; T9 K
wait for 90 min
( i! v( {! \# N! B take down R_mB
/ e8 z: ?, E. P1 N wait for 5 min
9 `. o& u) }( \3 E3 o y bring up R_mB
4 u: m* a: f: `5 |+ [, ? end
, v# O. c. }2 s' A" G+ iend1 {+ Q' r8 p$ Z( ~- _$ E
+ K& x3 D$ p! X4 B5 A" Lbegin P_mC_clean arriving+ N& O4 f5 i: i" ]9 p o
while 1=1 do! w% n# } Y5 ]' w
begin. I& s/ _0 Q% ^
wait for 90 min4 J" ^# z: w0 n) I
take down R_mC
; r4 I3 w% y' [* r wait for 10 min8 `" s0 d+ X2 p t: Z9 c- H
bring up R_mC
; ~6 H" N# x+ S6 O end* L" u- r- I3 m8 _1 @5 X! a
end' x8 \' B6 `, c( R) C! d& M) Z
----------------------------------------
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Exercise 5.9
0 M$ [8 I' b' O) @& E8 Z7 G! U2 X) k8 V9 m& ?. `5 N) F4 k
& ^$ F! \$ Z' V5 vCreate a new model to simulate the following system:( M5 A& Y4 M5 g/ q0 {) G7 E/ h+ q/ h
Loads are created with an interarrival time that is exponentially ' ?9 A0 Z8 j: X
distributed with a mean of 20 minutes. Loads wait in an infinite-
. ` B7 P( ^- [capacity queue to be processed by one of three single-capacity, ( u. W* m' y; f) B( {
arrayed machines. Each machine has its own single-capacity queue
4 R; w5 n5 k) {7 E, @4 g Cwhere loads are processed. Waiting loads move into one of the three 0 v& p4 F3 _( P; `1 ^5 v/ n- S
queues in round-robin order. Each machine has a normally ( W F2 m3 g+ `) W
distributed processing time with a mean of 48 minutes and a standard 4 J( c) V; v$ `5 N; ~
deviation of 5 minutes.6 k4 b( d( h p M$ _
The three machines were purchased at different times and have
9 P ~; A# ~7 X R% O( Fdifferent failure rates. The failure and repair times are exponentially + q$ J% D1 e) Z: V
distributed with means as shown in the following table: ; o' C: _7 M9 N M3 E
Note The solution for this assignment is required to complete # H, m/ ~: y( T$ ]# N1 e
exercise 7.1 (see “Exercise 7.1” on page263); be sure to save a copy of % f7 C) @- w& v. v( u7 I( J3 p
your model. $ N- A" i: B8 X" H' ~0 I
( C! P& q& _- |! m1 l! }- [
MachineMean time to failMean time to repair
9 Y# @1 N6 x6 Q2 l( HA110 minutes 5 minutes9 x* _( D, @4 a
B 170 minutes 10 minutes
% ^9 l! N$ }% z$ f/ f/ [7 ^5 |C230 minutes 10 minutes
, a2 k& t# K; W2 y
0 Z+ X: l8 D. J* IThe machines also must be cleaned according to the following
/ w+ f' ~3 D; A# |5 P. g9 ?; }schedule. All times are constant: / [) M8 o0 a- `5 a9 X
7 r: V/ d/ I* L9 r+ Y! UMachineTime between cleanings Time to clean
I% m0 h( [* |$ x+ Q4 Y- sA90 minutes 5 minutes+ B/ z' F; {4 U; F- ?: J7 H K
B 90 minutes 5 minutes# p9 o1 |, t& @, e, B! |5 e
C90 minutes 10 minutes3 m, O4 K- }6 l C
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Place the graphics for the queues and the resources.
1 s" j" L! h9 Z+ zRun the simulation for 100 days.) ^8 s/ ^7 N/ Z# B
Define all failure and cleaning times using logic (rather than resource 1 @4 e) B# D1 a- A5 c
cycles). Answer the following questions:. K0 i& `6 M+ U3 n ]
a.What was the average number of loads in the waiting queue?2 i% h/ u% [! ?# l
b.What were the current and average number of loads in Space? 0 p# M' e4 A' k8 m; \7 m& _
How do you explain these values? 6 `1 G+ a9 \! `* s( F7 c" }) d
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