-
Notifications
You must be signed in to change notification settings - Fork 0
/
Richards.st
756 lines (593 loc) · 16.7 KB
/
Richards.st
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
"======================================================================
|
| The Richards Benchmark in Smalltalk
|
|
======================================================================"
"======================================================================
|
| Copyright 2000 Free Software Foundation, Inc.
|
| This file is part of GNU Smalltalk.
|
| GNU Smalltalk is free software; you can redistribute it and/or modify it
| under the terms of the GNU General Public License as published by the Free
| Software Foundation; either version 2, or (at your option) any later version.
|
| GNU Smalltalk is distributed in the hope that it will be useful, but WITHOUT
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
| FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
| details.
|
| You should have received a copy of the GNU General Public License along with
| GNU Smalltalk; see the file COPYING. If not, write to the Free Software
| Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
======================================================================"
Object subclass: #RBObject
instanceVariableNames: ''
classVariableNames: 'DeviceA DeviceB DevicePacketKind HandlerA HandlerB Idler Worker WorkPacketKind '
poolDictionaries: ''
category: 'Examples-Richards'!
RBObject subclass: #Packet
instanceVariableNames: 'link identity kind datum data '
classVariableNames: ''
poolDictionaries: ''
category: 'Examples-Richards'!
RBObject subclass: #RichardsBenchmark
instanceVariableNames: 'taskList currentTask currentTaskIdentity taskTable tracing layout queuePacketCount holdCount '
classVariableNames: ''
poolDictionaries: ''
category: 'Examples-Richards'!
RBObject subclass: #TaskState
instanceVariableNames: 'packetPendingIV taskWaiting taskHolding '
classVariableNames: ''
poolDictionaries: ''
category: 'Examples-Richards'!
RBObject subclass: #DeviceTaskDataRecord
instanceVariableNames: 'pending '
classVariableNames: ''
poolDictionaries: ''
category: 'Examples-Richards'!
RBObject subclass: #HandlerTaskDataRecord
instanceVariableNames: 'workIn deviceIn '
classVariableNames: ''
poolDictionaries: ''
category: 'Examples-Richards'!
RBObject subclass: #WorkerTaskDataRecord
instanceVariableNames: 'destination count '
classVariableNames: ''
poolDictionaries: ''
category: 'Examples-Richards'!
TaskState subclass: #TaskControlBlock
instanceVariableNames: 'link identity priority input state function handle '
classVariableNames: ''
poolDictionaries: ''
category: 'Examples-Richards'!
RBObject subclass: #IdleTaskDataRecord
instanceVariableNames: 'control count '
classVariableNames: ''
poolDictionaries: ''
category: 'Examples-Richards'!
!RBObject methodsFor: 'utilities'!
append: packet head: queueHead
| mouse link |
packet link: nil.
queueHead isNil ifTrue: [^packet].
mouse := queueHead.
[(link := mouse link) isNil]
whileFalse: [mouse := link].
mouse link: packet.
^queueHead! !
"-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "!
RBObject class
instanceVariableNames: ''!
!RBObject class methodsFor: 'initialize'!
initialize
"RBObject initialize"
DeviceA := 5.
DeviceB := 6.
DevicePacketKind := 1.
HandlerA := 3.
HandlerB := 4.
Idler := 1.
Worker := 2.
WorkPacketKind := 2! !
RBObject initialize!
!Packet methodsFor: 'initialize'!
link: aLink identity: anIdentity kind: aKind
link := aLink.
identity := anIdentity.
kind := aKind.
datum := 1.
data := ByteArray new: 4! !
!Packet methodsFor: 'accessing'!
data
^data!
datum
^datum!
datum: someData
datum := someData!
identity
^identity!
identity: anIdentity
identity := anIdentity!
kind
^kind!
link
^link!
link: aWorkQueue
link := aWorkQueue! !
"-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "!
Packet class
instanceVariableNames: ''!
!Packet class methodsFor: 'instance creation'!
create: link identity: identity kind: kind
^super new
link: link
identity: identity
kind: kind! !
!RichardsBenchmark methodsFor: 'creation'!
createDevice: identity priority: priority work: work state: state
| data |
data := DeviceTaskDataRecord create.
self
createTask: identity
priority: priority
work: work
state: state
function:
[:work :word | | data functionWork |
data := word.
functionWork := work.
functionWork isNil
ifTrue:
[(functionWork := data pending) isNil
ifTrue: [self wait]
ifFalse:
[data pending: nil.
self queuePacket: functionWork]]
ifFalse:
[data pending: functionWork.
tracing
ifTrue:
[self trace: functionWork datum].
self holdSelf]]
data: data!
createHandler: identity priority: priority work: work state: state
| data |
data := HandlerTaskDataRecord create.
self
createTask: identity
priority: priority
work: work
state: state
function:
[:work :word | | data workPacket count devicePacket |
data := word.
work isNil
ifFalse: [WorkPacketKind == work kind
ifTrue: [data workInAdd: work]
ifFalse: [data deviceInAdd: work]].
(workPacket := data workIn) isNil
ifTrue: [self wait]
ifFalse:
[count := workPacket datum.
count > 4
ifTrue:
[data workIn: workPacket link.
self queuePacket: workPacket]
ifFalse:
[(devicePacket := data deviceIn) isNil
ifTrue: [self wait]
ifFalse:
[data deviceIn: devicePacket link.
devicePacket datum: (workPacket data at: count).
workPacket datum: count + 1.
self queuePacket: devicePacket]]]]
data: data!
createIdler: identity priority: priority work: work state: state
| data |
data := IdleTaskDataRecord create.
self
createTask: identity
priority: priority
work: work
state: state
function:
[:work :word | | data |
data := word.
data count: data count - 1.
0 = data count
ifTrue: [self holdSelf]
ifFalse:
[0 = (data control bitAnd: 1)
ifTrue:
[data control: data control // 2.
self release: DeviceA]
ifFalse:
[data control: (data control // 2 bitXor: 53256).
self release: DeviceB]]]
data: data!
createPacket: link identity: identity kind: kind
^Packet
create: link
identity: identity
kind: kind!
createTask: identity priority: priority work: work state: state function: aBlock data: data
| t |
t := TaskControlBlock
link: taskList
create: identity
priority: priority
initialWorkQueue: work
initialState: state
function: aBlock
privateData: data.
taskList := t.
taskTable at: identity put: t!
createWorker: identity priority: priority work: work state: state
| data |
data := WorkerTaskDataRecord create.
self
createTask: identity
priority: priority
work: work
state: state
function:
[:work :word | | data |
data := word.
work isNil
ifTrue: [self wait]
ifFalse:
[data destination: (HandlerA = data destination
ifTrue: [HandlerB]
ifFalse: [HandlerA]).
work identity: data destination.
work datum: 1.
1 to: 4 do:
[:i |
data count: data count + 1.
data count > 26 ifTrue: [data count: 1].
work data at: i put: $A asInteger + data count - 1].
self queuePacket: work]]
data: data! !
!RichardsBenchmark methodsFor: 'private'!
findTask: identity
| t |
t := taskTable at: identity.
t isNil ifTrue: [self error: 'findTask failed'].
^t!
holdSelf
holdCount := holdCount + 1.
currentTask taskHolding: true.
^currentTask link!
initScheduler
queuePacketCount := holdCount := 0.
taskTable := Array new: 6.
taskList := nil!
initTrace: trace
tracing := trace.
layout := 0!
queuePacket: packet
| t |
t := self findTask: packet identity.
t isNil ifTrue: [^nil].
queuePacketCount := queuePacketCount + 1.
packet link: nil.
packet identity: currentTaskIdentity.
^t addInput: packet checkPriority: currentTask!
release: identity
| t |
t := self findTask: identity.
t isNil ifTrue: [^nil].
t taskHolding: false.
t priority > currentTask priority
ifTrue: [^t]
ifFalse: [^currentTask]!
trace: id
layout := layout - 1.
0 >= layout
ifTrue:
[Transcript cr.
layout := 50].
Transcript show: id printString!
wait
currentTask taskWaiting: true.
^currentTask! !
!RichardsBenchmark methodsFor: 'scheduling'!
schedule
currentTask := taskList.
[currentTask isNil]
whileFalse:
[currentTask isTaskHoldingOrWaiting
ifTrue: [currentTask := currentTask link]
ifFalse:
[currentTaskIdentity := currentTask identity.
tracing ifTrue: [self trace: currentTaskIdentity].
currentTask := currentTask runTask]]! !
!RichardsBenchmark methodsFor: 'initialize'!
start
^self start: false
!
start: trace
| workQ mark1 mark2 mark3 mark4 |
self initTrace: trace; initScheduler.
mark1 := Time millisecondClockValue.
tracing ifTrue: [Transcript show: 'Bench mark starting'; cr].
self
createIdler: Idler
priority: 0
work: nil
state: TaskState running.
workQ := self
createPacket: nil
identity: Worker
kind: WorkPacketKind.
workQ := self
createPacket: workQ
identity: Worker
kind: WorkPacketKind.
self
createWorker: Worker
priority: 1000
work: workQ
state: TaskState waitingWithPacket.
workQ := self
createPacket: nil
identity: DeviceA
kind: DevicePacketKind.
workQ := self
createPacket: workQ
identity: DeviceA
kind: DevicePacketKind.
workQ := self
createPacket: workQ
identity: DeviceA
kind: DevicePacketKind.
self
createHandler: HandlerA
priority: 2000
work: workQ
state: TaskState waitingWithPacket.
workQ := self
createPacket: nil
identity: DeviceB
kind: DevicePacketKind.
workQ := self
createPacket: workQ
identity: DeviceB
kind: DevicePacketKind.
workQ := self
createPacket: workQ
identity: DeviceB
kind: DevicePacketKind.
self
createHandler: HandlerB
priority: 3000
work: workQ
state: TaskState waitingWithPacket.
self
createDevice: DeviceA
priority: 4000
work: nil
state: TaskState waiting.
self
createDevice: DeviceB
priority: 5000
work: nil
state: TaskState waiting.
tracing ifTrue: [Transcript show: 'Starting'; cr].
mark2 := Time millisecondClockValue.
self schedule.
mark3 := Time millisecondClockValue.
tracing
ifTrue:
[Transcript show: 'Finished'; cr.
Transcript show: 'QueuePacket count = ' ;
show: queuePacketCount printString;
show: ' HoldCount = ';
show: holdCount printString;
cr.
Transcript cr; show: 'End of run'; cr].
queuePacketCount = 23246 & (holdCount = 9297) ifFalse: [self error: 'wrong result'].
mark4 := Time millisecondClockValue.
tracing
ifTrue:
[Transcript show: '***Scheduler time = ';
show: (mark3 - mark2) printString;
show: ' Total time = ';
show: (mark4 - mark1) printString;
cr].
^mark3 - mark2! !
"-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "!
RichardsBenchmark class
instanceVariableNames: ''!
!RichardsBenchmark class methodsFor: 'instance creation'!
report: string times: count run: aBlock
"Report the time required to execute the given block."
| time |
time := 0.
count timesRepeat: [ time := time + aBlock value ].
Transcript show: string, ' ', (time // count) printString, ' milliseconds'; cr.!
standardBenchmark
"This the combined benchmark."
"Planner standardBenchmark"
self report: 'Richards simulations' times: 100 run: [ self start ]!
start: trace
"RichardsBenchmark start: true"
^self new start: trace!
start
"RichardsBenchmark start"
^self new start! !
!TaskState methodsFor: 'initialize'!
packetPending
packetPendingIV := true.
taskWaiting := false.
taskHolding := false!
running
packetPendingIV := taskWaiting := taskHolding := false!
waiting
packetPendingIV := taskHolding := false.
taskWaiting := true!
waitingWithPacket
taskHolding := false.
taskWaiting := packetPendingIV := true! !
!TaskState methodsFor: 'accessing'!
isPacketPending
^packetPendingIV!
isTaskHolding
^taskHolding!
isTaskWaiting
^taskWaiting!
taskHolding: aBoolean
taskHolding := aBoolean!
taskWaiting: aBoolean
taskWaiting := aBoolean! !
!TaskState methodsFor: 'testing'!
isRunning
^packetPendingIV not and: [taskWaiting not and: [taskHolding not]]!
isTaskHoldingOrWaiting
^taskHolding or: [packetPendingIV not and: [taskWaiting]]!
isWaiting
^packetPendingIV not and: [taskWaiting and: [taskHolding not]]!
isWaitingWithPacket
^packetPendingIV and: [taskWaiting and: [taskHolding not]]! !
"-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "!
TaskState class
instanceVariableNames: ''!
!TaskState class methodsFor: 'instance creation'!
packetPending
^super new packetPending!
running
^super new running!
waiting
^super new waiting!
waitingWithPacket
^super new waitingWithPacket! !
!DeviceTaskDataRecord methodsFor: 'initialize'!
create
pending := nil! !
!DeviceTaskDataRecord methodsFor: 'accessing'!
pending
^pending!
pending: packet
pending := packet! !
"-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "!
DeviceTaskDataRecord class
instanceVariableNames: ''!
!DeviceTaskDataRecord class methodsFor: 'instance creation'!
create
^super new create! !
!HandlerTaskDataRecord methodsFor: 'initialize'!
create
workIn := deviceIn := nil! !
!HandlerTaskDataRecord methodsFor: 'accessing'!
deviceIn
^deviceIn!
deviceIn: aPacket
deviceIn := aPacket!
deviceInAdd: packet
deviceIn := self append: packet head: deviceIn!
workIn
^workIn!
workIn: aWorkQueue
workIn := aWorkQueue!
workInAdd: packet
workIn := self append: packet head: workIn! !
"-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "!
HandlerTaskDataRecord class
instanceVariableNames: ''!
!HandlerTaskDataRecord class methodsFor: 'instance creation'!
create
^super new create! !
!WorkerTaskDataRecord methodsFor: 'initialize'!
create
destination := HandlerA.
count := 0! !
!WorkerTaskDataRecord methodsFor: 'accessing'!
count
^count!
count: aCount
count := aCount!
destination
^destination!
destination: aHandler
destination := aHandler! !
"-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "!
WorkerTaskDataRecord class
instanceVariableNames: ''!
!WorkerTaskDataRecord class methodsFor: 'instance creation'!
create
^super new create! !
!TaskControlBlock methodsFor: 'initialize'!
link: aLink identity: anIdentity priority: aPriority initialWorkQueue: anInitialWorkQueue initialState: anInitialState function: aBlock privateData: aPrivateData
link := aLink.
identity := anIdentity.
priority := aPriority.
input := anInitialWorkQueue.
packetPendingIV := anInitialState isPacketPending.
taskWaiting := anInitialState isTaskWaiting.
taskHolding := anInitialState isTaskHolding.
function := aBlock.
handle := aPrivateData! !
!TaskControlBlock methodsFor: 'accessing'!
identity
^identity!
link
^link!
priority
^priority! !
!TaskControlBlock methodsFor: 'scheduling'!
addInput: packet checkPriority: oldTask
input isNil
ifTrue:
[input := packet.
packetPendingIV := true.
priority > oldTask priority ifTrue: [^self]]
ifFalse:
[input := self append: packet head: input].
^oldTask!
runTask
| message |
self isWaitingWithPacket
ifTrue:
[message := input.
input := message link.
input isNil
ifTrue: [self running]
ifFalse: [self packetPending]]
ifFalse: [message := nil].
^function value: message value: handle! !
"-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "!
TaskControlBlock class
instanceVariableNames: ''!
!TaskControlBlock class methodsFor: 'instance creation'!
link: link create: identity priority: priority initialWorkQueue: initialWorkQueue initialState: initialState function: aBlock privateData: privateData
^super new
link: link
identity: identity
priority: priority
initialWorkQueue: initialWorkQueue
initialState: initialState
function: aBlock
privateData: privateData! !
!IdleTaskDataRecord methodsFor: 'initialize'!
create
control := 1.
count := 10000! !
!IdleTaskDataRecord methodsFor: 'accessing'!
control
^control!
control: aNumber
control := aNumber!
count
^count!
count: aCount
count := aCount! !
"-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "!
IdleTaskDataRecord class
instanceVariableNames: ''!
!IdleTaskDataRecord class methodsFor: 'instance creation'!
create
^super new create! !