summaryrefslogtreecommitdiffstats
path: root/xmrstak/backend/cpu/minethd.cpp
blob: aeab5165a5883e06b0ff375bf3aad84525bc0df2 (plain)
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
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
/*
  * This program 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 3 of the License, or
  * any later version.
  *
  * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  * Additional permission under GNU GPL version 3 section 7
  *
  * If you modify this Program, or any covered work, by linking or combining
  * it with OpenSSL (or a modified version of that library), containing parts
  * covered by the terms of OpenSSL License and SSLeay License, the licensors
  * of this Program grant you additional permission to convey the resulting work.
  *
  */

#include "crypto/cryptonight_altivec.h"

#include "xmrstak/misc/console.hpp"
#include "xmrstak/backend/iBackend.hpp"
#include "xmrstak/backend//globalStates.hpp"
#include "xmrstak/misc/configEditor.hpp"
#include "xmrstak/params.hpp"
#include "jconf.hpp"

#include "xmrstak/misc/executor.hpp"
#include "minethd.hpp"
#include "xmrstak/jconf.hpp"

#include "hwlocMemory.hpp"
#include "xmrstak/backend/miner_work.hpp"

#ifndef CONF_NO_HWLOC
#   include "autoAdjustHwloc.hpp"
#else
#   include "autoAdjust.hpp"
#endif

#include <assert.h>
#include <cmath>
#include <chrono>
#include <cstring>
#include <thread>
#include <bitset>

#ifdef _WIN32
#include <windows.h>
#else
#include <pthread.h>

#if defined(__APPLE__)
#include <mach/thread_policy.h>
#include <mach/thread_act.h>
#define SYSCTL_CORE_COUNT   "machdep.cpu.core_count"
#elif defined(__FreeBSD__)
#include <pthread_np.h>
#endif //__APPLE__

#endif //_WIN32

namespace xmrstak
{
namespace cpu
{

bool minethd::thd_setaffinity(std::thread::native_handle_type h, uint64_t cpu_id)
{
#if defined(_WIN32)
	// we can only pin up to 64 threads
	if(cpu_id < 64)
	{
		return SetThreadAffinityMask(h, 1ULL << cpu_id) != 0;
	}
	else
	{
		printer::inst()->print_msg(L0, "WARNING: Windows supports only affinity up to 63.");
		return false;
	}
#elif defined(__APPLE__)
	thread_port_t mach_thread;
	thread_affinity_policy_data_t policy = { static_cast<integer_t>(cpu_id) };
	mach_thread = pthread_mach_thread_np(h);
	return thread_policy_set(mach_thread, THREAD_AFFINITY_POLICY, (thread_policy_t)&policy, 1) == KERN_SUCCESS;
#elif defined(__FreeBSD__)
	cpuset_t mn;
	CPU_ZERO(&mn);
	CPU_SET(cpu_id, &mn);
	return pthread_setaffinity_np(h, sizeof(cpuset_t), &mn) == 0;
#elif defined(__OpenBSD__)
        printer::inst()->print_msg(L0,"WARNING: thread pinning is not supported under OPENBSD.");
        return true;
#else
	cpu_set_t mn;
	CPU_ZERO(&mn);
	CPU_SET(cpu_id, &mn);
	return pthread_setaffinity_np(h, sizeof(cpu_set_t), &mn) == 0;
#endif
}

minethd::minethd(miner_work& pWork, size_t iNo, int iMultiway, bool no_prefetch, int64_t affinity)
{
	this->backendType = iBackend::CPU;
	oWork = pWork;
	bQuit = 0;
	iThreadNo = (uint8_t)iNo;
	iJobNo = 0;
	bNoPrefetch = no_prefetch;
	this->affinity = affinity;

	std::unique_lock<std::mutex> lck(thd_aff_set);
	std::future<void> order_guard = order_fix.get_future();

	switch (iMultiway)
	{
	case 5:
		oWorkThd = std::thread(&minethd::penta_work_main, this);
		break;
	case 4:
		oWorkThd = std::thread(&minethd::quad_work_main, this);
		break;
	case 3:
		oWorkThd = std::thread(&minethd::triple_work_main, this);
		break;
	case 2:
		oWorkThd = std::thread(&minethd::double_work_main, this);
		break;
	case 1:
	default:
		oWorkThd = std::thread(&minethd::work_main, this);
		break;
	}

	order_guard.wait();

	if(affinity >= 0) //-1 means no affinity
		if(!thd_setaffinity(oWorkThd.native_handle(), affinity))
			printer::inst()->print_msg(L1, "WARNING setting affinity failed.");
}

cryptonight_ctx* minethd::minethd_alloc_ctx()
{
	cryptonight_ctx* ctx;
	alloc_msg msg = { 0 };

	switch (::jconf::inst()->GetSlowMemSetting())
	{
	case ::jconf::never_use:
		ctx = cryptonight_alloc_ctx(1, 1, &msg);
		if (ctx == NULL)
			printer::inst()->print_msg(L0, "MEMORY ALLOC FAILED: %s", msg.warning);
		return ctx;

	case ::jconf::no_mlck:
		ctx = cryptonight_alloc_ctx(1, 0, &msg);
		if (ctx == NULL)
			printer::inst()->print_msg(L0, "MEMORY ALLOC FAILED: %s", msg.warning);
		return ctx;

	case ::jconf::print_warning:
		ctx = cryptonight_alloc_ctx(1, 1, &msg);
		if (msg.warning != NULL)
			printer::inst()->print_msg(L0, "MEMORY ALLOC FAILED: %s", msg.warning);
		if (ctx == NULL)
			ctx = cryptonight_alloc_ctx(0, 0, NULL);
		return ctx;

	case ::jconf::always_use:
		return cryptonight_alloc_ctx(0, 0, NULL);

	case ::jconf::unknown_value:
		return NULL; //Shut up compiler
	}

	return nullptr; //Should never happen
}

static constexpr size_t MAX_N = 5;
bool minethd::self_test()
{
	alloc_msg msg = { 0 };
	size_t res;
	bool fatal = false;

	switch (::jconf::inst()->GetSlowMemSetting())
	{
	case ::jconf::never_use:
		res = cryptonight_init(1, 1, &msg);
		fatal = true;
		break;

	case ::jconf::no_mlck:
		res = cryptonight_init(1, 0, &msg);
		fatal = true;
		break;

	case ::jconf::print_warning:
		res = cryptonight_init(1, 1, &msg);
		break;

	case ::jconf::always_use:
		res = cryptonight_init(0, 0, &msg);
		break;

	case ::jconf::unknown_value:
	default:
		return false; //Shut up compiler
	}

	if(msg.warning != nullptr)
		printer::inst()->print_msg(L0, "MEMORY INIT ERROR: %s", msg.warning);

	if(res == 0 && fatal)
		return false;

	cryptonight_ctx *ctx[MAX_N] = {0};
	for (int i = 0; i < MAX_N; i++)
	{
		if ((ctx[i] = minethd_alloc_ctx()) == nullptr)
		{
			for (int j = 0; j < i; j++)
				cryptonight_free_ctx(ctx[j]);
			return false;
		}
	}

	bool bResult = true;

	if(::jconf::inst()->GetCurrentCoinSelection().GetDescription(1).GetMiningAlgo() == cryptonight)
	{
		unsigned char out[32 * MAX_N];
		cn_hash_fun hashf;
		cn_hash_fun_multi hashf_multi;

		hashf = func_selector(::jconf::inst()->HaveHardwareAes(), false, xmrstak_algo::cryptonight);
		hashf("This is a test", 14, out, ctx[0]);
		bResult = memcmp(out, "\xa0\x84\xf0\x1d\x14\x37\xa0\x9c\x69\x85\x40\x1b\x60\xd4\x35\x54\xae\x10\x58\x02\xc5\xf5\xd8\xa9\xb3\x25\x36\x49\xc0\xbe\x66\x05", 32) == 0;

		hashf = func_selector(::jconf::inst()->HaveHardwareAes(), true, xmrstak_algo::cryptonight);
		hashf("This is a test", 14, out, ctx[0]);
		bResult &= memcmp(out, "\xa0\x84\xf0\x1d\x14\x37\xa0\x9c\x69\x85\x40\x1b\x60\xd4\x35\x54\xae\x10\x58\x02\xc5\xf5\xd8\xa9\xb3\x25\x36\x49\xc0\xbe\x66\x05", 32) == 0;

		hashf_multi = func_multi_selector(2, ::jconf::inst()->HaveHardwareAes(), false, xmrstak_algo::cryptonight);
		hashf_multi("The quick brown fox jumps over the lazy dogThe quick brown fox jumps over the lazy log", 43, out, ctx);
		bResult &= memcmp(out, "\x3e\xbb\x7f\x9f\x7d\x27\x3d\x7c\x31\x8d\x86\x94\x77\x55\x0c\xc8\x00\xcf\xb1\x1b\x0c\xad\xb7\xff\xbd\xf6\xf8\x9f\x3a\x47\x1c\x59"
				"\xb4\x77\xd5\x02\xe4\xd8\x48\x7f\x42\xdf\xe3\x8e\xed\x73\x81\x7a\xda\x91\xb7\xe2\x63\xd2\x91\x71\xb6\x5c\x44\x3a\x01\x2a\x41\x22", 64) == 0;

		hashf_multi = func_multi_selector(2, ::jconf::inst()->HaveHardwareAes(), true, xmrstak_algo::cryptonight);
		hashf_multi("The quick brown fox jumps over the lazy dogThe quick brown fox jumps over the lazy log", 43, out, ctx);
		bResult &= memcmp(out, "\x3e\xbb\x7f\x9f\x7d\x27\x3d\x7c\x31\x8d\x86\x94\x77\x55\x0c\xc8\x00\xcf\xb1\x1b\x0c\xad\xb7\xff\xbd\xf6\xf8\x9f\x3a\x47\x1c\x59"
				"\xb4\x77\xd5\x02\xe4\xd8\x48\x7f\x42\xdf\xe3\x8e\xed\x73\x81\x7a\xda\x91\xb7\xe2\x63\xd2\x91\x71\xb6\x5c\x44\x3a\x01\x2a\x41\x22", 64) == 0;

		hashf_multi = func_multi_selector(3, ::jconf::inst()->HaveHardwareAes(), false, xmrstak_algo::cryptonight);
		hashf_multi("This is a testThis is a testThis is a test", 14, out, ctx);
		bResult &= memcmp(out, "\xa0\x84\xf0\x1d\x14\x37\xa0\x9c\x69\x85\x40\x1b\x60\xd4\x35\x54\xae\x10\x58\x02\xc5\xf5\xd8\xa9\xb3\x25\x36\x49\xc0\xbe\x66\x05"
				"\xa0\x84\xf0\x1d\x14\x37\xa0\x9c\x69\x85\x40\x1b\x60\xd4\x35\x54\xae\x10\x58\x02\xc5\xf5\xd8\xa9\xb3\x25\x36\x49\xc0\xbe\x66\x05"
				"\xa0\x84\xf0\x1d\x14\x37\xa0\x9c\x69\x85\x40\x1b\x60\xd4\x35\x54\xae\x10\x58\x02\xc5\xf5\xd8\xa9\xb3\x25\x36\x49\xc0\xbe\x66\x05", 96) == 0;

		hashf_multi = func_multi_selector(4, ::jconf::inst()->HaveHardwareAes(), false, xmrstak_algo::cryptonight);
		hashf_multi("This is a testThis is a testThis is a testThis is a test", 14, out, ctx);
		bResult &= memcmp(out, "\xa0\x84\xf0\x1d\x14\x37\xa0\x9c\x69\x85\x40\x1b\x60\xd4\x35\x54\xae\x10\x58\x02\xc5\xf5\xd8\xa9\xb3\x25\x36\x49\xc0\xbe\x66\x05"
				"\xa0\x84\xf0\x1d\x14\x37\xa0\x9c\x69\x85\x40\x1b\x60\xd4\x35\x54\xae\x10\x58\x02\xc5\xf5\xd8\xa9\xb3\x25\x36\x49\xc0\xbe\x66\x05"
				"\xa0\x84\xf0\x1d\x14\x37\xa0\x9c\x69\x85\x40\x1b\x60\xd4\x35\x54\xae\x10\x58\x02\xc5\xf5\xd8\xa9\xb3\x25\x36\x49\xc0\xbe\x66\x05"
				"\xa0\x84\xf0\x1d\x14\x37\xa0\x9c\x69\x85\x40\x1b\x60\xd4\x35\x54\xae\x10\x58\x02\xc5\xf5\xd8\xa9\xb3\x25\x36\x49\xc0\xbe\x66\x05", 128) == 0;

		hashf_multi = func_multi_selector(5, ::jconf::inst()->HaveHardwareAes(), false, xmrstak_algo::cryptonight);
		hashf_multi("This is a testThis is a testThis is a testThis is a testThis is a test", 14, out, ctx);
		bResult &= memcmp(out, "\xa0\x84\xf0\x1d\x14\x37\xa0\x9c\x69\x85\x40\x1b\x60\xd4\x35\x54\xae\x10\x58\x02\xc5\xf5\xd8\xa9\xb3\x25\x36\x49\xc0\xbe\x66\x05"
				"\xa0\x84\xf0\x1d\x14\x37\xa0\x9c\x69\x85\x40\x1b\x60\xd4\x35\x54\xae\x10\x58\x02\xc5\xf5\xd8\xa9\xb3\x25\x36\x49\xc0\xbe\x66\x05"
				"\xa0\x84\xf0\x1d\x14\x37\xa0\x9c\x69\x85\x40\x1b\x60\xd4\x35\x54\xae\x10\x58\x02\xc5\xf5\xd8\xa9\xb3\x25\x36\x49\xc0\xbe\x66\x05"
				"\xa0\x84\xf0\x1d\x14\x37\xa0\x9c\x69\x85\x40\x1b\x60\xd4\x35\x54\xae\x10\x58\x02\xc5\xf5\xd8\xa9\xb3\x25\x36\x49\xc0\xbe\x66\x05"
				"\xa0\x84\xf0\x1d\x14\x37\xa0\x9c\x69\x85\x40\x1b\x60\xd4\x35\x54\xae\x10\x58\x02\xc5\xf5\xd8\xa9\xb3\x25\x36\x49\xc0\xbe\x66\x05", 160) == 0;
	}
	else if(::jconf::inst()->GetCurrentCoinSelection().GetDescription(1).GetMiningAlgo() == cryptonight_lite)
	{
	}
	else if(::jconf::inst()->GetCurrentCoinSelection().GetDescription(1).GetMiningAlgo() == cryptonight_monero)
	{
	}
	else if(::jconf::inst()->GetCurrentCoinSelection().GetDescription(1).GetMiningAlgo() == cryptonight_aeon)
	{
	}
	else if(::jconf::inst()->GetCurrentCoinSelection().GetDescription(1).GetMiningAlgo() == cryptonight_ipbc)
	{
	}
	else if(::jconf::inst()->GetCurrentCoinSelection().GetDescription(1).GetMiningAlgo() == cryptonight_stellite)
	{
	}
	for (int i = 0; i < MAX_N; i++)
		cryptonight_free_ctx(ctx[i]);

	if(!bResult)
		printer::inst()->print_msg(L0,
			"Cryptonight hash self-test failed. This might be caused by bad compiler optimizations.");

	return bResult;
}

std::vector<iBackend*> minethd::thread_starter(uint32_t threadOffset, miner_work& pWork)
{
	std::vector<iBackend*> pvThreads;

	if(!configEditor::file_exist(params::inst().configFileCPU))
	{
		autoAdjust adjust;
		if(!adjust.printConfig())
			return pvThreads;
	}

	if(!jconf::inst()->parse_config())
	{
		win_exit();
	}


	//Launch the requested number of single and double threads, to distribute
	//load evenly we need to alternate single and double threads
	size_t i, n = jconf::inst()->GetThreadCount();
	pvThreads.reserve(n);

	jconf::thd_cfg cfg;
	for (i = 0; i < n; i++)
	{
		jconf::inst()->GetThreadConfig(i, cfg);
    
		if(cfg.iCpuAff >= 0)
		{
			printer::inst()->print_msg(L1, "Starting %dx thread, affinity: %d.", cfg.iMultiway, (int)cfg.iCpuAff);
		}
		else
			printer::inst()->print_msg(L1, "Starting %dx thread, no affinity.", cfg.iMultiway);

		minethd* thd = new minethd(pWork, i + threadOffset, cfg.iMultiway, cfg.bNoPrefetch, cfg.iCpuAff);
		pvThreads.push_back(thd);
	}

	return pvThreads;
}

minethd::cn_hash_fun minethd::func_selector(bool bHaveAes, bool bNoPrefetch, xmrstak_algo algo)
{
	// We have two independent flag bits in the functions
	// therefore we will build a binary digit and select the
	// function as a two digit binary

	uint8_t algv;
	switch(algo)
	{
	case cryptonight:
		algv = 2;
		break;
	case cryptonight_lite:
		algv = 1;
		break;
	case cryptonight_monero:
		algv = 0;
		break;
	case cryptonight_heavy:
		algv = 3;
		break;
	case cryptonight_aeon:
		algv = 4;
		break;
	case cryptonight_ipbc:
		algv = 5;
		break;
	case cryptonight_stellite:
		algv = 6;
		break;
	default:
		algv = 2;
		break;
	}

	static const cn_hash_fun func_table[] = {
		cryptonight_hash<cryptonight_monero, false, false>,
		cryptonight_hash<cryptonight_monero, true, false>,
		cryptonight_hash<cryptonight_monero, false, true>,
		cryptonight_hash<cryptonight_monero, true, true>,
		cryptonight_hash<cryptonight_lite, false, false>,
		cryptonight_hash<cryptonight_lite, true, false>,
		cryptonight_hash<cryptonight_lite, false, true>,
		cryptonight_hash<cryptonight_lite, true, true>,
		cryptonight_hash<cryptonight, false, false>,
		cryptonight_hash<cryptonight, true, false>,
		cryptonight_hash<cryptonight, false, true>,
		cryptonight_hash<cryptonight, true, true>,
		cryptonight_hash<cryptonight_heavy, false, false>,
		cryptonight_hash<cryptonight_heavy, true, false>,
		cryptonight_hash<cryptonight_heavy, false, true>,
		cryptonight_hash<cryptonight_heavy, true, true>,
		cryptonight_hash<cryptonight_aeon, false, false>,
		cryptonight_hash<cryptonight_aeon, true, false>,
		cryptonight_hash<cryptonight_aeon, false, true>,
		cryptonight_hash<cryptonight_aeon, true, true>,
		cryptonight_hash<cryptonight_ipbc, false, false>,
		cryptonight_hash<cryptonight_ipbc, true, false>,
		cryptonight_hash<cryptonight_ipbc, false, true>,
		cryptonight_hash<cryptonight_ipbc, true, true>,
		cryptonight_hash<cryptonight_stellite, false, false>,
		cryptonight_hash<cryptonight_stellite, true, false>,
		cryptonight_hash<cryptonight_stellite, false, true>,
		cryptonight_hash<cryptonight_stellite, true, true>
	};

	std::bitset<2> digit;
	digit.set(0, !bHaveAes);
	digit.set(1, bNoPrefetch);

	return func_table[ algv << 2 | digit.to_ulong() ];
}

void minethd::work_main()
{
	if(affinity >= 0) //-1 means no affinity
		bindMemoryToNUMANode(affinity);

	order_fix.set_value();
	std::unique_lock<std::mutex> lck(thd_aff_set);
	lck.release();
	std::this_thread::yield();

	cryptonight_ctx* ctx;
	uint64_t iCount = 0;
	uint64_t* piHashVal;
	uint32_t* piNonce;
	job_result result;

	// start with root algorithm and switch later if fork version is reached
	auto miner_algo = ::jconf::inst()->GetCurrentCoinSelection().GetDescription(1).GetMiningAlgoRoot();
	cn_hash_fun hash_fun = func_selector(::jconf::inst()->HaveHardwareAes(), bNoPrefetch, miner_algo);
	ctx = minethd_alloc_ctx();

	piHashVal = (uint64_t*)(result.bResult + 24);
	piNonce = (uint32_t*)(oWork.bWorkBlob + 39);
	result.iThreadId = iThreadNo;

	uint8_t version = 0;
	size_t lastPoolId = 0;

	while (bQuit == 0)
	{
		if (oWork.bStall)
		{
			/* We are stalled here because the executor didn't find a job for us yet,
			 * either because of network latency, or a socket problem. Since we are
			 * raison d'etre of this software it us sensible to just wait until we have something
			 */

			while (globalStates::inst().iGlobalJobNo.load(std::memory_order_relaxed) == iJobNo)
				std::this_thread::sleep_for(std::chrono::milliseconds(100));

			globalStates::inst().consume_work(oWork, iJobNo);
			continue;
		}

		size_t nonce_ctr = 0;
		constexpr size_t nonce_chunk = 4096; // Needs to be a power of 2

		assert(sizeof(job_result::sJobID) == sizeof(pool_job::sJobID));
		memcpy(result.sJobID, oWork.sJobID, sizeof(job_result::sJobID));

		if(oWork.bNiceHash)
			result.iNonce = *piNonce;

		uint8_t new_version = oWork.getVersion();
		if(new_version != version || oWork.iPoolId != lastPoolId)
		{
			coinDescription coinDesc = ::jconf::inst()->GetCurrentCoinSelection().GetDescription(oWork.iPoolId);
			if(new_version >= coinDesc.GetMiningForkVersion())
			{
				miner_algo = coinDesc.GetMiningAlgo();
				hash_fun = func_selector(::jconf::inst()->HaveHardwareAes(), bNoPrefetch, miner_algo);
			}
			else
			{
				miner_algo = coinDesc.GetMiningAlgoRoot();
				hash_fun = func_selector(::jconf::inst()->HaveHardwareAes(), bNoPrefetch, miner_algo);
			}
			lastPoolId = oWork.iPoolId;
			version = new_version;
		}

		while(globalStates::inst().iGlobalJobNo.load(std::memory_order_relaxed) == iJobNo)
		{
			if ((iCount++ & 0xF) == 0) //Store stats every 16 hashes
			{
				uint64_t iStamp = get_timestamp_ms();
				iHashCount.store(iCount, std::memory_order_relaxed);
				iTimestamp.store(iStamp, std::memory_order_relaxed);
			}

			if((nonce_ctr++ & (nonce_chunk-1)) == 0)
			{
				globalStates::inst().calc_start_nonce(result.iNonce, oWork.bNiceHash, nonce_chunk);
				// check if the job is still valid, there is a small posibility that the job is switched
				if(globalStates::inst().iGlobalJobNo.load(std::memory_order_relaxed) != iJobNo)
					break;
			}

			*piNonce = result.iNonce;

			hash_fun(oWork.bWorkBlob, oWork.iWorkSize, result.bResult, ctx);

			if (*piHashVal < oWork.iTarget)
				executor::inst()->push_event(ex_event(result, oWork.iPoolId));
			result.iNonce++;

			std::this_thread::yield();
		}

		globalStates::inst().consume_work(oWork, iJobNo);
	}

	cryptonight_free_ctx(ctx);
}

minethd::cn_hash_fun_multi minethd::func_multi_selector(size_t N, bool bHaveAes, bool bNoPrefetch, xmrstak_algo algo)
{
	// We have two independent flag bits in the functions
	// therefore we will build a binary digit and select the
	// function as a two digit binary

	uint8_t algv;
	switch(algo)
	{
	case cryptonight:
		algv = 2;
		break;
	case cryptonight_lite:
		algv = 1;
		break;
	case cryptonight_monero:
		algv = 0;
		break;
	case cryptonight_heavy:
		algv = 3;
		break;
	case cryptonight_aeon:
		algv = 4;
		break;
	case cryptonight_ipbc:
		algv = 5;
		break;
	case cryptonight_stellite:
		algv = 6;
		break;
	default:
		algv = 2;
		break;
	}

	static const cn_hash_fun_multi func_table[] = {
		cryptonight_double_hash<cryptonight_monero, false, false>,
		cryptonight_double_hash<cryptonight_monero, true, false>,
		cryptonight_double_hash<cryptonight_monero, false, true>,
		cryptonight_double_hash<cryptonight_monero, true, true>,
		cryptonight_triple_hash<cryptonight_monero, false, false>,
		cryptonight_triple_hash<cryptonight_monero, true, false>,
		cryptonight_triple_hash<cryptonight_monero, false, true>,
		cryptonight_triple_hash<cryptonight_monero, true, true>,
		cryptonight_quad_hash<cryptonight_monero, false, false>,
		cryptonight_quad_hash<cryptonight_monero, true, false>,
		cryptonight_quad_hash<cryptonight_monero, false, true>,
		cryptonight_quad_hash<cryptonight_monero, true, true>,
		cryptonight_penta_hash<cryptonight_monero, false, false>,
		cryptonight_penta_hash<cryptonight_monero, true, false>,
		cryptonight_penta_hash<cryptonight_monero, false, true>,
		cryptonight_penta_hash<cryptonight_monero, true, true>,

		cryptonight_double_hash<cryptonight_lite, false, false>,
		cryptonight_double_hash<cryptonight_lite, true, false>,
		cryptonight_double_hash<cryptonight_lite, false, true>,
		cryptonight_double_hash<cryptonight_lite, true, true>,
		cryptonight_triple_hash<cryptonight_lite, false, false>,
		cryptonight_triple_hash<cryptonight_lite, true, false>,
		cryptonight_triple_hash<cryptonight_lite, false, true>,
		cryptonight_triple_hash<cryptonight_lite, true, true>,
		cryptonight_quad_hash<cryptonight_lite, false, false>,
		cryptonight_quad_hash<cryptonight_lite, true, false>,
		cryptonight_quad_hash<cryptonight_lite, false, true>,
		cryptonight_quad_hash<cryptonight_lite, true, true>,
		cryptonight_penta_hash<cryptonight_lite, false, false>,
		cryptonight_penta_hash<cryptonight_lite, true, false>,
		cryptonight_penta_hash<cryptonight_lite, false, true>,
		cryptonight_penta_hash<cryptonight_lite, true, true>,

		cryptonight_double_hash<cryptonight, false, false>,
		cryptonight_double_hash<cryptonight, true, false>,
		cryptonight_double_hash<cryptonight, false, true>,
		cryptonight_double_hash<cryptonight, true, true>,
		cryptonight_triple_hash<cryptonight, false, false>,
		cryptonight_triple_hash<cryptonight, true, false>,
		cryptonight_triple_hash<cryptonight, false, true>,
		cryptonight_triple_hash<cryptonight, true, true>,
		cryptonight_quad_hash<cryptonight, false, false>,
		cryptonight_quad_hash<cryptonight, true, false>,
		cryptonight_quad_hash<cryptonight, false, true>,
		cryptonight_quad_hash<cryptonight, true, true>,
		cryptonight_penta_hash<cryptonight, false, false>,
		cryptonight_penta_hash<cryptonight, true, false>,
		cryptonight_penta_hash<cryptonight, false, true>,
		cryptonight_penta_hash<cryptonight, true, true>,

		cryptonight_double_hash<cryptonight_heavy, false, false>,
		cryptonight_double_hash<cryptonight_heavy, true, false>,
		cryptonight_double_hash<cryptonight_heavy, false, true>,
		cryptonight_double_hash<cryptonight_heavy, true, true>,
		cryptonight_triple_hash<cryptonight_heavy, false, false>,
		cryptonight_triple_hash<cryptonight_heavy, true, false>,
		cryptonight_triple_hash<cryptonight_heavy, false, true>,
		cryptonight_triple_hash<cryptonight_heavy, true, true>,
		cryptonight_quad_hash<cryptonight_heavy, false, false>,
		cryptonight_quad_hash<cryptonight_heavy, true, false>,
		cryptonight_quad_hash<cryptonight_heavy, false, true>,
		cryptonight_quad_hash<cryptonight_heavy, true, true>,
		cryptonight_penta_hash<cryptonight_heavy, false, false>,
		cryptonight_penta_hash<cryptonight_heavy, true, false>,
		cryptonight_penta_hash<cryptonight_heavy, false, true>,
		cryptonight_penta_hash<cryptonight_heavy, true, true>,

		cryptonight_double_hash<cryptonight_aeon, false, false>,
		cryptonight_double_hash<cryptonight_aeon, true, false>,
		cryptonight_double_hash<cryptonight_aeon, false, true>,
		cryptonight_double_hash<cryptonight_aeon, true, true>,
		cryptonight_triple_hash<cryptonight_aeon, false, false>,
		cryptonight_triple_hash<cryptonight_aeon, true, false>,
		cryptonight_triple_hash<cryptonight_aeon, false, true>,
		cryptonight_triple_hash<cryptonight_aeon, true, true>,
		cryptonight_quad_hash<cryptonight_aeon, false, false>,
		cryptonight_quad_hash<cryptonight_aeon, true, false>,
		cryptonight_quad_hash<cryptonight_aeon, false, true>,
		cryptonight_quad_hash<cryptonight_aeon, true, true>,
		cryptonight_penta_hash<cryptonight_aeon, false, false>,
		cryptonight_penta_hash<cryptonight_aeon, true, false>,
		cryptonight_penta_hash<cryptonight_aeon, false, true>,
		cryptonight_penta_hash<cryptonight_aeon, true, true>,

		cryptonight_double_hash<cryptonight_ipbc, false, false>,
		cryptonight_double_hash<cryptonight_ipbc, true, false>,
		cryptonight_double_hash<cryptonight_ipbc, false, true>,
		cryptonight_double_hash<cryptonight_ipbc, true, true>,
		cryptonight_triple_hash<cryptonight_ipbc, false, false>,
		cryptonight_triple_hash<cryptonight_ipbc, true, false>,
		cryptonight_triple_hash<cryptonight_ipbc, false, true>,
		cryptonight_triple_hash<cryptonight_ipbc, true, true>,
		cryptonight_quad_hash<cryptonight_ipbc, false, false>,
		cryptonight_quad_hash<cryptonight_ipbc, true, false>,
		cryptonight_quad_hash<cryptonight_ipbc, false, true>,
		cryptonight_quad_hash<cryptonight_ipbc, true, true>,
		cryptonight_penta_hash<cryptonight_ipbc, false, false>,
		cryptonight_penta_hash<cryptonight_ipbc, true, false>,
		cryptonight_penta_hash<cryptonight_ipbc, false, true>,
		cryptonight_penta_hash<cryptonight_ipbc, true, true>,

		cryptonight_double_hash<cryptonight_stellite, false, false>,
		cryptonight_double_hash<cryptonight_stellite, true, false>,
		cryptonight_double_hash<cryptonight_stellite, false, true>,
		cryptonight_double_hash<cryptonight_stellite, true, true>,
		cryptonight_triple_hash<cryptonight_stellite, false, false>,
		cryptonight_triple_hash<cryptonight_stellite, true, false>,
		cryptonight_triple_hash<cryptonight_stellite, false, true>,
		cryptonight_triple_hash<cryptonight_stellite, true, true>,
		cryptonight_quad_hash<cryptonight_stellite, false, false>,
		cryptonight_quad_hash<cryptonight_stellite, true, false>,
		cryptonight_quad_hash<cryptonight_stellite, false, true>,
		cryptonight_quad_hash<cryptonight_stellite, true, true>,
		cryptonight_penta_hash<cryptonight_stellite, false, false>,
		cryptonight_penta_hash<cryptonight_stellite, true, false>,
		cryptonight_penta_hash<cryptonight_stellite, false, true>,
		cryptonight_penta_hash<cryptonight_stellite, true, true>,
	};

	std::bitset<2> digit;
	digit.set(0, !bHaveAes);
	digit.set(1, !bNoPrefetch);

	return func_table[algv << 4 | (N-2) << 2 | digit.to_ulong()];
}

void minethd::double_work_main()
{
	multiway_work_main<2u>();
}

void minethd::triple_work_main()
{
	multiway_work_main<3u>();
}

void minethd::quad_work_main()
{
	multiway_work_main<4u>();
}

void minethd::penta_work_main()
{
	multiway_work_main<5u>();
}

template<size_t N>
void minethd::prep_multiway_work(uint8_t *bWorkBlob, uint32_t **piNonce)
{
	for (size_t i = 0; i < N; i++)
	{
		memcpy(bWorkBlob + oWork.iWorkSize * i, oWork.bWorkBlob, oWork.iWorkSize);
		if (i > 0)
			piNonce[i] = (uint32_t*)(bWorkBlob + oWork.iWorkSize * i + 39);
	}
}

template<uint32_t N>
void minethd::multiway_work_main()
{
	if(affinity >= 0) //-1 means no affinity
		bindMemoryToNUMANode(affinity);

	order_fix.set_value();
	std::unique_lock<std::mutex> lck(thd_aff_set);
	lck.release();
	std::this_thread::yield();

	cryptonight_ctx *ctx[MAX_N];
	uint64_t iCount = 0;
	uint64_t *piHashVal[MAX_N];
	uint32_t *piNonce[MAX_N];
	uint8_t bHashOut[MAX_N * 32];
	uint8_t bWorkBlob[sizeof(miner_work::bWorkBlob) * MAX_N];
	uint32_t iNonce;
	job_result res;

	for (size_t i = 0; i < N; i++)
	{
		ctx[i] = minethd_alloc_ctx();
		piHashVal[i] = (uint64_t*)(bHashOut + 32 * i + 24);
		piNonce[i] = (i == 0) ? (uint32_t*)(bWorkBlob + 39) : nullptr;
	}

	if(!oWork.bStall)
		prep_multiway_work<N>(bWorkBlob, piNonce);

	globalStates::inst().iConsumeCnt++;

	// start with root algorithm and switch later if fork version is reached
	auto miner_algo = ::jconf::inst()->GetCurrentCoinSelection().GetDescription(1).GetMiningAlgoRoot();
	cn_hash_fun_multi hash_fun_multi = func_multi_selector(N, ::jconf::inst()->HaveHardwareAes(), bNoPrefetch, miner_algo);
	uint8_t version = 0;
	size_t lastPoolId = 0;

	while (bQuit == 0)
	{
		if (oWork.bStall)
		{
			/*	We are stalled here because the executor didn't find a job for us yet,
			either because of network latency, or a socket problem. Since we are
			raison d'etre of this software it us sensible to just wait until we have something*/

			while (globalStates::inst().iGlobalJobNo.load(std::memory_order_relaxed) == iJobNo)
				std::this_thread::sleep_for(std::chrono::milliseconds(100));

			globalStates::inst().consume_work(oWork, iJobNo);
			prep_multiway_work<N>(bWorkBlob, piNonce);
			continue;
		}

		constexpr uint32_t nonce_chunk = 4096;
		int64_t nonce_ctr = 0;

		assert(sizeof(job_result::sJobID) == sizeof(pool_job::sJobID));

		if(oWork.bNiceHash)
			iNonce = *piNonce[0];

		uint8_t new_version = oWork.getVersion();
		if(new_version != version || oWork.iPoolId != lastPoolId)
		{
			coinDescription coinDesc = ::jconf::inst()->GetCurrentCoinSelection().GetDescription(oWork.iPoolId);
			if(new_version >= coinDesc.GetMiningForkVersion())
			{
				miner_algo = coinDesc.GetMiningAlgo();
				hash_fun_multi = func_multi_selector(N, ::jconf::inst()->HaveHardwareAes(), bNoPrefetch, miner_algo);
			}
			else
			{
				miner_algo = coinDesc.GetMiningAlgoRoot();
				hash_fun_multi = func_multi_selector(N, ::jconf::inst()->HaveHardwareAes(), bNoPrefetch, miner_algo);
			}
			lastPoolId = oWork.iPoolId;
			version = new_version;
		}

		while (globalStates::inst().iGlobalJobNo.load(std::memory_order_relaxed) == iJobNo)
		{
			if ((iCount++ & 0x7) == 0)  //Store stats every 8*N hashes
			{
				uint64_t iStamp = get_timestamp_ms();
				iHashCount.store(iCount * N, std::memory_order_relaxed);
				iTimestamp.store(iStamp, std::memory_order_relaxed);
			}

			nonce_ctr -= N;
			if(nonce_ctr <= 0)
			{
				globalStates::inst().calc_start_nonce(iNonce, oWork.bNiceHash, nonce_chunk);
				nonce_ctr = nonce_chunk;
				// check if the job is still valid, there is a small posibility that the job is switched
				if(globalStates::inst().iGlobalJobNo.load(std::memory_order_relaxed) != iJobNo)
					break;
			}

			for (size_t i = 0; i < N; i++)
				*piNonce[i] = iNonce++;

			hash_fun_multi(bWorkBlob, oWork.iWorkSize, bHashOut, ctx);

			for (size_t i = 0; i < N; i++)
			{
				if (*piHashVal[i] < oWork.iTarget)
				{
					executor::inst()->push_event(ex_event(job_result(oWork.sJobID, iNonce - N + i, bHashOut + 32 * i, iThreadNo), oWork.iPoolId));
				}
			}

			std::this_thread::yield();
		}

		globalStates::inst().consume_work(oWork, iJobNo);
		prep_multiway_work<N>(bWorkBlob, piNonce);
	}

	for (int i = 0; i < N; i++)
		cryptonight_free_ctx(ctx[i]);
}

} // namespace cpu
} // namespace xmrstak
OpenPOWER on IntegriCloud