VMS/VMS_Implementations/VMS_impls/VMS__MC_shared

view VMS.h @ 193:20358f56e498

fix coreloop recording bug and eliminate race condition on measurement-collecting list

author	Nina Engelhardt <nengel@mailbox.tu-berlin.de>
date	Thu, 09 Feb 2012 15:40:11 +0100
parents	fe5ad5726e36
children	d83f59e6e2db

line source

1 /*

3 * Licensed under GNU General Public License version 2

4 *

5 * Author: seanhalle@yahoo.com

6 *

7 */

9 #ifndef _VMS_H

10 #define _VMS_H

11 #define _GNU_SOURCE

13 #include "VMS_primitive_data_types.h"

14 #include "Queue_impl/PrivateQueue.h"

15 #include "Histogram/Histogram.h"

16 #include "DynArray/DynArray.h"

17 #include "Hash_impl/PrivateHash.h"

18 #include "vmalloc.h"

19 #include "loop.h"

20 #include "ListOfArrays/ListOfArrays.h"

22 #include <pthread.h>

23 #include <sys/time.h>

26 //=============================== Debug ===================================

27 //

28 //When SEQUENTIAL is defined, VMS does sequential exe in the main thread

29 // It still does co-routines and all the mechanisms are the same, it just

30 // has only a single thread and animates VPs one at a time

31 //#define SEQUENTIAL

33 //#define USE_WORK_STEALING

35 //turns on the probe-instrumentation in the application -- when not

36 // defined, the calls to the probe functions turn into comments

37 //#define STATS__ENABLE_PROBES

38 //#define TURN_ON_DEBUG_PROBES

40 //These defines turn types of bug messages on and off

41 // be sure debug messages are un-commented (next block of defines)

42 #define dbgAppFlow FALSE /* Top level flow of application code -- general*/

43 #define dbgProbes FALSE /* for issues inside probes themselves*/

44 #define dbgB2BMaster FALSE /* in coreloop, back to back master VPs*/

45 #define dbgRqstHdlr FALSE /* in request handler code*/

46 #define dbgDependency TRUE /* in request handler code, print dependencies */

48 //Comment or un- the substitute half to turn on/off types of debug message

49 #define DEBUG( bool, msg) \

50 if( bool){ printf(msg); fflush(stdin);}

51 #define DEBUG1( bool, msg, param) \

52 if(bool){printf(msg, param); fflush(stdin);}

53 #define DEBUG2( bool, msg, p1, p2) \

54 if(bool) {printf(msg, p1, p2); fflush(stdin);}

56 #define ERROR(msg) printf(msg);

57 #define ERROR1(msg, param) printf(msg, param);

58 #define ERROR2(msg, p1, p2) printf(msg, p1, p2);

60 //=========================== STATS =======================

62 //when MEAS__TIME_STAMP_SUSP is defined, causes code to be inserted and

63 // compiled-in that saves the low part of the time stamp count just before

64 // suspending a processor and just after resuming that processor. It is

65 // saved into a field added to VirtProcr. Have to sanity-check for

66 // rollover of low portion into high portion.

67 //#define MEAS__TIME_STAMP_SUSP

68 //#define MEAS__TIME_MASTER

69 //#define MEAS__TIME_PLUGIN

70 //#define MEAS__TIME_MALLOC

71 //#define MEAS__TIME_MASTER_LOCK

72 //#define MEAS__NUM_TIMES_TO_RUN 100000

74 //For code that calculates normalization-offset between TSC counts of

75 // different cores.

76 //#define NUM_TSC_ROUND_TRIPS 10

78 #define MEAS__PERF_COUNTERS

79 #define OBSERVE_UCC

80 #define DETECT_LOOP_GRAPH

82 //========================= Hardware related Constants =====================

83 //This value is the number of hardware threads in the shared memory

84 // machine

85 #define NUM_CORES 4

87 // tradeoff amortizing master fixed overhead vs imbalance potential

88 // when work-stealing, can make bigger, at risk of losing cache affinity

89 #define NUM_SCHED_SLOTS 5

91 #define MIN_WORK_UNIT_CYCLES 20000

93 #define MASTERLOCK_RETRIES 10000

95 // stack size in virtual processors created

96 #define VIRT_PROCR_STACK_SIZE 0x8000 /* 32K */

98 // memory for VMS__malloc

99 #define MALLOC_ADDITIONAL_MEM_FROM_OS_SIZE 0x10000000 /* 256M */

100

101 #define CACHE_LINE 64

102 #define PAGE_SIZE 4096

103

104

105 //==============================

106

107 #define SUCCESS 0

108

109 #define writeVMSQ writePrivQ

110 #define readVMSQ readPrivQ

111 #define makeVMSQ makeVMSPrivQ

112 #define numInVMSQ numInPrivQ

113 #define VMSQueueStruc PrivQueueStruc

114

115

116

117 //===========================================================================

118 typedef unsigned long long TSCount;

119

120 typedef struct _SchedSlot SchedSlot;

121 typedef struct _VMSReqst VMSReqst;

122 typedef struct _VirtProcr VirtProcr;

123 typedef struct _IntervalProbe IntervalProbe;

124 typedef struct _GateStruc GateStruc;

125

126

127 typedef VirtProcr * (*SlaveScheduler) ( void *, int, int ); //semEnv, coreIdx

128 typedef void (*RequestHandler) ( VirtProcr *, void * ); //prWReqst, semEnv

129 typedef void (*VirtProcrFnPtr) ( void *, VirtProcr * ); //initData, animPr

130 typedef void VirtProcrFn ( void *, VirtProcr * ); //initData, animPr

131 typedef void (*ResumePrFnPtr) ( VirtProcr *, void * );

132 typedef void (*CounterHandler) (int,int,int,VirtProcr*,uint64,uint64);

133

134 //============= Requests ===========

135 //

136

137 enum VMSReqstType //avoid starting enums at 0, for debug reasons

138 {

139 semantic = 1,

140 createReq,

141 dissipate,

142 VMSSemantic //goes with VMSSemReqst below

143 };

144

145 struct _VMSReqst

146 {

147 enum VMSReqstType reqType;//used for dissipate and in future for IO requests

148 void *semReqData;

149

150 VMSReqst *nextReqst;

151 };

152 //VMSReqst

153

154 enum VMSSemReqstType //These are equivalent to semantic requests, but for

155 { // VMS's services available directly to app, like OS

156 createProbe = 1, // and probe services -- like a VMS-wide built-in lang

157 openFile,

158 otherIO

159 };

160

161 typedef struct

162 { enum VMSSemReqstType reqType;

163 VirtProcr *requestingPr;

164 char *nameStr; //for create probe

165 }

166 VMSSemReq;

167

168

169 //==================== Core data structures ===================

170

171 struct _SchedSlot

172 {

173 int workIsDone;

174 int needsProcrAssigned;

175 VirtProcr *procrAssignedToSlot;

176 };

177 //SchedSlot

178

179 /*WARNING: re-arranging this data structure could cause VP switching

180 * assembly code to fail -- hard-codes offsets of fields

181 */

182 struct _VirtProcr

183 { int procrID; //for debugging -- count up each time create

184 int coreAnimatedBy;

185 void *startOfStack;

186 void *stackPtr;

187 void *framePtr;

188 void *nextInstrPt;

189

190 void *coreLoopStartPt; //allows proto-runtime to be linked later

191 void *coreLoopFramePtr; //restore before jmp back to core loop

192 void *coreLoopStackPtr; //restore before jmp back to core loop

193

194 void *initialData;

195

196 SchedSlot *schedSlot;

197 VMSReqst *requests;

198

199 void *semanticData; //this livesUSE_GNU here for the life of VP

200 void *dataRetFromReq;//values returned from plugin to VP go here

201

202 //=========== MEASUREMENT STUFF ==========

203 #ifdef MEAS__TIME_STAMP_SUSP

204 unsigned int preSuspTSCLow;

205 unsigned int postSuspTSCLow;

206 #endif

207 #ifdef MEAS__TIME_MASTER /* in VirtProcr because multiple masterVPs*/

208 unsigned int startMasterTSCLow;USE_GNU

209 unsigned int endMasterTSCLow;

210 #endif

211 #ifdef MEAS__PERF_COUNTERS //

212 //CounterRecord** counter_history;

213 //PrivDynArrayInfo* counter_history_array_info;

214 #endif

215 int isMasterVP;

216 int isShutdownVP;

217 //========================================

218

219 float64 createPtInSecs; //have space but don't use on some configs

220 int numTimesScheduled; //defines units together w/ procrID

221 };

222 //VirtProcr

223

224

225 /*WARNING: re-arranging this data structure could cause VP-switching

226 * assembly code to fail -- hard-codes offsets of fields

227 * (because -O3 messes with things otherwise)

228 */

229 typedef struct

230 {

231 SlaveScheduler slaveScheduler;

232 RequestHandler requestHandler;

233

234 SchedSlot ***allSchedSlots;

235 VMSQueueStruc **readyToAnimateQs;

236 VirtProcr **masterVPs;

237

238 void *semanticEnv;

239 void *OSEventStruc; //for future, when add I/O to BLIS

240 MallocProlog *freeListHead;

241 int32 amtOfOutstandingMem; //total currently allocated

242

243 void *coreLoopReturnPt;//addr to jump to to re-enter coreLoop

244

245 int32 setupComplete;

246 volatile int32 masterLock;

247

248 int32 numMasterInARow[NUM_CORES];//detect back-to-back masterVP

249 GateStruc *workStealingGates[ NUM_CORES ]; //concurrent work-steal

250 int32 workStealingLock;

251

252 int32 numProcrsCreated; //gives ordering to processor creation

253

254 //=========== MEASUREMENT STUFF =============

255 IntervalProbe **intervalProbes;

256 PrivDynArrayInfo *dynIntervalProbesInfo;

257 HashTable *probeNameHashTbl;

258 int32 masterCreateProbeID;

259 float64 createPtInSecs;

260 Histogram **measHists;

261 PrivDynArrayInfo *measHistsInfo;

262 #ifdef MEAS__TIME_PLUGIN

263 Histogram *reqHdlrLowTimeHist;

264 Histogram *reqHdlrHighTimeHist;

265 #endif

266 #ifdef MEAS__TIME_MALLOC

267 Histogram *mallocTimeHist;

268 Histogram *freeTimeHist;

269 #endif

270 #ifdef MEAS__TIME_MASTER_LOCK

271 Histogram *masterLockLowTimeHist;

272 Histogram *masterLockHighTimeHist;

273 #endif

274 #ifdef MEAS__PERF_COUNTERS

275 int cycles_counter_fd[NUM_CORES];

276 int instrs_counter_fd[NUM_CORES];

277 //FILE* counteroutput;

278 //CounterRecord** counter_history;

279 //PrivDynArrayInfo* counter_history_array_info;

280 CounterHandler counterHandler;

281 #endif

282 }

283 MasterEnv;

284

285 //========================= Extra Stuff Data Strucs =======================

286 typedef struct

287 {

288

289 }

290 VMSExcp;

291

292 struct _GateStruc

293 {

294 int32 gateClosed;

295 int32 preGateProgress;

296 int32 waitProgress;

297 int32 exitProgress;

298 };

299 //GateStruc

300

301 //======================= OS Thread related ===============================

302

303 void * coreLoop( void *paramsIn ); //standard PThreads fn prototype

304 void * coreLoop_Seq( void *paramsIn ); //standard PThreads fn prototype

305 void masterLoop( void *initData, VirtProcr *masterPr );

306

307

308 typedef struct

309 {

310 void *endThdPt;

311 unsigned int coreNum;

312 }

313 ThdParams;

314

315 pthread_t coreLoopThdHandles[ NUM_CORES ]; //pthread's virt-procr state

316 ThdParams *coreLoopThdParams [ NUM_CORES ];

317 pthread_mutex_t suspendLock;

318 pthread_cond_t suspend_cond;

319

320

321

322 //===================== Global Vars ===================

323

324 volatile MasterEnv *_VMSMasterEnv;

325

326

327

328

329 //=========================== Function Prototypes =========================

330

331

332 //========== Setup and shutdown ==========

333 void

334 VMS__init();

335

336 void

337 VMS__init_Seq();

338

339 void

340 VMS__start_the_work_then_wait_until_done();

341

342 void

343 VMS__start_the_work_then_wait_until_done_Seq();

344

345 inline VirtProcr *

346 VMS__create_procr( VirtProcrFnPtr fnPtr, void *initialData );

347

348 void

349 VMS__dissipate_procr( VirtProcr *procrToDissipate );

350

351 //Use this to create processor inside entry point & other places outside

352 // the VMS system boundary (IE, not run in slave nor Master)

353 VirtProcr *

354 VMS_ext__create_procr( VirtProcrFnPtr fnPtr, void *initialData );

355

356 void

357 VMS_ext__dissipate_procr( VirtProcr *procrToDissipate );

358

359 void

360 VMS__throw_exception( char *msgStr, VirtProcr *reqstPr, VMSExcp *excpData );

361

362 void

363 VMS__shutdown();

364

365 void

366 VMS__cleanup_at_end_of_shutdown();

367

368 void *

369 VMS__give_sem_env_for( VirtProcr *animPr );

370

371

372 //============== Request Related ===============

373

374 void

375 VMS__suspend_procr( VirtProcr *callingPr );

376

377 inline void

378 VMS__add_sem_request_in_mallocd_VMSReqst( void *semReqData, VirtProcr *callingPr );

379

380 inline void

381 VMS__send_sem_request( void *semReqData, VirtProcr *callingPr );

382

383 void

384 VMS__send_create_procr_req( void *semReqData, VirtProcr *reqstingPr );

385

386 void inline

387 VMS__send_dissipate_req( VirtProcr *prToDissipate );

388

389 inline void

390 VMS__send_VMSSem_request( void *semReqData, VirtProcr *callingPr );

391

392 VMSReqst *

393 VMS__take_next_request_out_of( VirtProcr *procrWithReq );

394

395 inline void *

396 VMS__take_sem_reqst_from( VMSReqst *req );

397

398 void inline

399 VMS__handle_VMSSemReq( VMSReqst *req, VirtProcr *requestingPr, void *semEnv,

400 ResumePrFnPtr resumePrFnPtr );

401

402 //======================== STATS ======================

403

404 //===== RDTSC wrapper ===== //Also runs with x86_64 code

405

406 #define saveTimeStampCountInto(low, high) \

407 asm volatile("RDTSC; \

408 movl %%eax, %0; \

409 movl %%edx, %1;" \

410 /* outputs */ : "=m" (low), "=m" (high)\

411 /* inputs */ : \

412 /* clobber */ : "%eax", "%edx" \

413 );

414

415 #define saveLowTimeStampCountInto(low) \

416 asm volatile("RDTSC; \

417 movl %%eax, %0;" \

418 /* outputs */ : "=m" (low) \

419 /* inputs */ : \

420 /* clobber */ : "%eax", "%edx" \

421 );

422

423 //====================

424 #define makeAMeasHist( idx, name, numBins, startVal, binWidth ) \

425 makeHighestDynArrayIndexBeAtLeast( _VMSMasterEnv->measHistsInfo, idx ); \

426 _VMSMasterEnv->measHists[idx] = \

427 makeFixedBinHist( numBins, startVal, binWidth, name );

428

429 #define saveCyclesAndInstrs(core,cycles,instrs) do{ \

430 int cycles_fd = _VMSMasterEnv->cycles_counter_fd[core]; \

431 int instrs_fd = _VMSMasterEnv->instrs_counter_fd[core]; \

432 int nread; \

433 \

434 nread = read(cycles_fd,&(cycles),sizeof(cycles)); \

435 if(nread<0){ \

436 perror("Error reading cycles counter"); \

437 cycles = 0; \

438 } \

439 \

440 nread = read(instrs_fd,&(instrs),sizeof(instrs)); \

441 if(nread<0){ \

442 perror("Error reading cycles counter"); \

443 instrs = 0; \

444 } \

445 } while (0)

446

447 enum eventType {

448 DebugEvt = 0,

449 AppResponderInvocation_start,

450 AppResponder_start,

451 AppResponder_end,

452 Assigner_start,

453 Assigner_end,

454 Work_start,

455 Work_end,

456 HwResponderInvocation_start

457 };

458

459 #define getReturnAddressBeforeLibraryCall(vp_ptr, res_ptr) do{ \

460 void* frame_ptr0 = vp_ptr->framePtr; \

461 void* frame_ptr1 = *((void**)frame_ptr0); \

462 void* frame_ptr2 = *((void**)frame_ptr1); \

463 void* frame_ptr3 = *((void**)frame_ptr2); \

464 void* ret_addr = *((void**)frame_ptr3 + 1); \

465 *res_ptr = ret_addr; \

466 } while (0)

467

468 #define MEAS__SUB_CREATE /*turn on/off subtraction of create from plugin*/

469

470 #ifdef VPTHREAD

471

472 //VPThread

473 #define createHistIdx 0

474 #define mutexLockHistIdx 1

475 #define mutexUnlockHistIdx 2

476 #define condWaitHistIdx 3

477 #define condSignalHistIdx 4

478

479 #define MakeTheMeasHists() \

480 _VMSMasterEnv->measHistsInfo = \

481 makePrivDynArrayOfSize( (void***)&(_VMSMasterEnv->measHists), 200); \

482 makeAMeasHist( createHistIdx, "create", 250, 0, 100 ) \

483 makeAMeasHist( mutexLockHistIdx, "mutex_lock", 50, 0, 100 ) \

484 makeAMeasHist( mutexUnlockHistIdx, "mutex_unlock", 50, 0, 100 ) \

485 makeAMeasHist( condWaitHistIdx, "cond_wait", 50, 0, 100 ) \

486 makeAMeasHist( condSignalHistIdx, "cond_signal", 50, 0, 100 )

487

488 #endif

489

490

491 #ifdef VCILK

492

493 //VCilk

494 #define spawnHistIdx 0

495 #define syncHistIdx 1

496

497 #define MakeTheMeasHists() \

498 _VMSMasterEnv->measHistsInfo = \

499 makePrivDynArrayOfSize( (void***)&(_VMSMasterEnv->measHists), 200); \

500 makeAMeasHist( spawnHistIdx, "Spawn", 50, 0, 200 ) \

501 makeAMeasHist( syncHistIdx, "Sync", 50, 0, 200 )

502

503

504 #endif

505

506 #ifdef SSR

507

508 //SSR

509 #define SendFromToHistIdx 0

510 #define SendOfTypeHistIdx 1

511 #define ReceiveFromToHistIdx 2

512 #define ReceiveOfTypeHistIdx 3

513

514 #define MakeTheMeasHists() \

515 _VMSMasterEnv->measHistsInfo = \

516 makePrivDynArrayOfSize( (void***)&(_VMSMasterEnv->measHists), 200); \

517 makeAMeasHist( SendFromToHistIdx, "SendFromTo", 50, 0, 100 ) \

518 makeAMeasHist( SendOfTypeHistIdx, "SendOfType", 50, 0, 100 ) \

519 makeAMeasHist( ReceiveFromToHistIdx,"ReceiveFromTo", 50, 0, 100 ) \

520 makeAMeasHist( ReceiveOfTypeHistIdx,"ReceiveOfType", 50, 0, 100 )

521

522 #endif

523

524 //===========================================================================

525 //VPThread

526

527

528 #define Meas_startCreate \

529 int32 startStamp, endStamp; \

530 saveLowTimeStampCountInto( startStamp ); \

531

532 #define Meas_endCreate \

533 saveLowTimeStampCountInto( endStamp ); \

534 addIntervalToHist( startStamp, endStamp, \

535 _VMSMasterEnv->measHists[ createHistIdx ] );

536

537 #define Meas_startMutexLock \

538 int32 startStamp, endStamp; \

539 saveLowTimeStampCountInto( startStamp ); \

540

541 #define Meas_endMutexLock \

542 saveLowTimeStampCountInto( endStamp ); \

543 addIntervalToHist( startStamp, endStamp, \

544 _VMSMasterEnv->measHists[ mutexLockHistIdx ] );

545

546 #define Meas_startMutexUnlock \

547 int32 startStamp, endStamp; \

548 saveLowTimeStampCountInto( startStamp ); \

549

550 #define Meas_endMutexUnlock \

551 saveLowTimeStampCountInto( endStamp ); \

552 addIntervalToHist( startStamp, endStamp, \

553 _VMSMasterEnv->measHists[ mutexUnlockHistIdx ] );

554

555 #define Meas_startCondWait \

556 int32 startStamp, endStamp; \

557 saveLowTimeStampCountInto( startStamp ); \

558

559 #define Meas_endCondWait \

560 saveLowTimeStampCountInto( endStamp ); \

561 addIntervalToHist( startStamp, endStamp, \

562 _VMSMasterEnv->measHists[ condWaitHistIdx ] );

563

564 #define Meas_startCondSignal \

565 int32 startStamp, endStamp; \

566 saveLowTimeStampCountInto( startStamp ); \

567

568 #define Meas_endCondSignal \

569 saveLowTimeStampCountInto( endStamp ); \

570 addIntervalToHist( startStamp, endStamp, \

571 _VMSMasterEnv->measHists[ condSignalHistIdx ] );

572

573 //===========================================================================

574 // VCilk

575 #define Meas_startSpawn \

576 int32 startStamp, endStamp; \

577 saveLowTimeStampCountInto( startStamp ); \

578

579 #define Meas_endSpawn \

580 saveLowTimeStampCountInto( endStamp ); \

581 addIntervalToHist( startStamp, endStamp, \

582 _VMSMasterEnv->measHists[ spawnHistIdx ] );

583

584 #define Meas_startSync \

585 int32 startStamp, endStamp; \

586 saveLowTimeStampCountInto( startStamp ); \

587

588 #define Meas_endSync \

589 saveLowTimeStampCountInto( endStamp ); \

590 addIntervalToHist( startStamp, endStamp, \

591 _VMSMasterEnv->measHists[ syncHistIdx ] );

592

593 //===========================================================================

594 // SSR

595 #define Meas_startSendFromTo \

596 int32 startStamp, endStamp; \

597 saveLowTimeStampCountInto( startStamp ); \

598

599 #define Meas_endSendFromTo \

600 saveLowTimeStampCountInto( endStamp ); \

601 addIntervalToHist( startStamp, endStamp, \

602 _VMSMasterEnv->measHists[ SendFromToHistIdx ] );

603

604 #define Meas_startSendOfType \

605 int32 startStamp, endStamp; \

606 saveLowTimeStampCountInto( startStamp ); \

607

608 #define Meas_endSendOfType \

609 saveLowTimeStampCountInto( endStamp ); \

610 addIntervalToHist( startStamp, endStamp, \

611 _VMSMasterEnv->measHists[ SendOfTypeHistIdx ] );

612

613 #define Meas_startReceiveFromTo \

614 int32 startStamp, endStamp; \

615 saveLowTimeStampCountInto( startStamp ); \

616

617 #define Meas_endReceiveFromTo \

618 saveLowTimeStampCountInto( endStamp ); \

619 addIntervalToHist( startStamp, endStamp, \

620 _VMSMasterEnv->measHists[ ReceiveFromToHistIdx ] );

621

622 #define Meas_startReceiveOfType \

623 int32 startStamp, endStamp; \

624 saveLowTimeStampCountInto( startStamp ); \

625

626 #define Meas_endReceiveOfType \

627 saveLowTimeStampCountInto( endStamp ); \

628 addIntervalToHist( startStamp, endStamp, \

629 _VMSMasterEnv->measHists[ReceiveOfTypeHistIdx ] );

630

631 //=====

632

633 #include "ProcrContext.h"

634 #include "probes.h"

635 #include "vutilities.h"

636

637 #endif /* _VMS_H */

638

Mercurial > cgi-bin > hgwebdir.cgi > VMS > VMS_Implementations > VMS_impls > VMS__MC_shared_impl

view VMS.h @ 193:20358f56e498