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annotate VSs.c @ 5:8188c5b4bfd7

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implemented taskwait
author Nina Engelhardt <nengel@mailbox.tu-berlin.de>
date Fri, 13 Jul 2012 17:35:49 +0200
parents 13af59ed7ea5
children 1780f6b00e3d
rev   line source
seanhalle@0 1 /*
seanhalle@0 2 * Copyright 2010 OpenSourceCodeStewardshipFoundation
seanhalle@0 3 *
seanhalle@0 4 * Licensed under BSD
seanhalle@0 5 */
seanhalle@0 6
seanhalle@0 7 #include <stdio.h>
seanhalle@0 8 #include <stdlib.h>
seanhalle@0 9 #include <malloc.h>
seanhalle@0 10
seanhalle@0 11 #include "Queue_impl/PrivateQueue.h"
seanhalle@0 12 #include "Hash_impl/PrivateHash.h"
seanhalle@0 13
seanhalle@2 14 #include "VSs.h"
seanhalle@3 15 #include "Measurement/VSs_Counter_Recording.h"
seanhalle@0 16
seanhalle@0 17 //==========================================================================
seanhalle@0 18
seanhalle@0 19 void
seanhalle@2 20 VSs__init();
seanhalle@0 21
seanhalle@0 22 void
seanhalle@2 23 VSs__init_Helper();
seanhalle@0 24 //==========================================================================
seanhalle@0 25
seanhalle@0 26
seanhalle@0 27
seanhalle@0 28 //===========================================================================
seanhalle@0 29
seanhalle@0 30
seanhalle@0 31 /*These are the library functions *called in the application*
seanhalle@0 32 *
seanhalle@0 33 *There's a pattern for the outside sequential code to interact with the
seanhalle@0 34 * VMS_HW code.
seanhalle@2 35 *The VMS_HW system is inside a boundary.. every VSs system is in its
seanhalle@0 36 * own directory that contains the functions for each of the processor types.
seanhalle@0 37 * One of the processor types is the "seed" processor that starts the
seanhalle@0 38 * cascade of creating all the processors that do the work.
seanhalle@0 39 *So, in the directory is a file called "EntryPoint.c" that contains the
seanhalle@0 40 * function, named appropriately to the work performed, that the outside
seanhalle@0 41 * sequential code calls. This function follows a pattern:
seanhalle@2 42 *1) it calls VSs__init()
seanhalle@0 43 *2) it creates the initial data for the seed processor, which is passed
seanhalle@0 44 * in to the function
seanhalle@2 45 *3) it creates the seed VSs processor, with the data to start it with.
seanhalle@2 46 *4) it calls startVSsThenWaitUntilWorkDone
seanhalle@0 47 *5) it gets the returnValue from the transfer struc and returns that
seanhalle@0 48 * from the function
seanhalle@0 49 *
seanhalle@2 50 *For now, a new VSs system has to be created via VSs__init every
seanhalle@0 51 * time an entry point function is called -- later, might add letting the
seanhalle@2 52 * VSs system be created once, and let all the entry points just reuse
seanhalle@0 53 * it -- want to be as simple as possible now, and see by using what makes
seanhalle@0 54 * sense for later..
seanhalle@0 55 */
seanhalle@0 56
seanhalle@0 57
seanhalle@0 58
seanhalle@0 59 //===========================================================================
seanhalle@0 60
seanhalle@0 61 /*This is the "border crossing" function -- the thing that crosses from the
seanhalle@0 62 * outside world, into the VMS_HW world. It initializes and starts up the
seanhalle@0 63 * VMS system, then creates one processor from the specified function and
seanhalle@0 64 * puts it into the readyQ. From that point, that one function is resp.
seanhalle@0 65 * for creating all the other processors, that then create others, and so
seanhalle@0 66 * forth.
seanhalle@0 67 *When all the processors, including the seed, have dissipated, then this
seanhalle@0 68 * function returns. The results will have been written by side-effect via
seanhalle@0 69 * pointers read from, or written into initData.
seanhalle@0 70 *
seanhalle@0 71 *NOTE: no Threads should exist in the outside program that might touch
seanhalle@0 72 * any of the data reachable from initData passed in to here
seanhalle@0 73 */
seanhalle@0 74 void
seanhalle@2 75 VSs__create_seed_slave_and_do_work( TopLevelFnPtr fnPtr, void *initData )
seanhalle@2 76 { VSsSemEnv *semEnv;
seanhalle@3 77 SlaveVP *seedSlv;
seanhalle@0 78
seanhalle@2 79 VSs__init(); //normal multi-thd
seanhalle@0 80
seanhalle@0 81 semEnv = _VMSMasterEnv->semanticEnv;
seanhalle@0 82
seanhalle@2 83 //VSs starts with one processor, which is put into initial environ,
seanhalle@0 84 // and which then calls create() to create more, thereby expanding work
seanhalle@3 85 seedSlv = VSs__create_slave_helper( fnPtr, initData,
seanhalle@3 86 semEnv, semEnv->nextCoreToGetNewSlv++ );
seanhalle@3 87
seanhalle@3 88 //seedVP doesn't do tasks
seanhalle@3 89 ((VSsSemData *)seedSlv->semanticData)->needsTaskAssigned = FALSE;
seanhalle@0 90
seanhalle@3 91 resume_slaveVP( seedSlv, semEnv );
seanhalle@0 92
seanhalle@0 93 VMS_SS__start_the_work_then_wait_until_done(); //normal multi-thd
seanhalle@0 94
seanhalle@2 95 VSs__cleanup_after_shutdown();
seanhalle@0 96 }
seanhalle@0 97
seanhalle@0 98
seanhalle@0 99 int32
seanhalle@2 100 VSs__giveMinWorkUnitCycles( float32 percentOverhead )
seanhalle@0 101 {
seanhalle@0 102 return MIN_WORK_UNIT_CYCLES;
seanhalle@0 103 }
seanhalle@0 104
seanhalle@0 105 int32
seanhalle@2 106 VSs__giveIdealNumWorkUnits()
seanhalle@0 107 {
seanhalle@0 108 return NUM_ANIM_SLOTS * NUM_CORES;
seanhalle@0 109 }
seanhalle@0 110
seanhalle@0 111 int32
seanhalle@2 112 VSs__give_number_of_cores_to_schedule_onto()
seanhalle@0 113 {
seanhalle@0 114 return NUM_CORES;
seanhalle@0 115 }
seanhalle@0 116
seanhalle@0 117 /*For now, use TSC -- later, make these two macros with assembly that first
seanhalle@0 118 * saves jump point, and second jumps back several times to get reliable time
seanhalle@0 119 */
seanhalle@0 120 void
seanhalle@2 121 VSs__start_primitive()
seanhalle@2 122 { saveLowTimeStampCountInto( ((VSsSemEnv *)(_VMSMasterEnv->semanticEnv))->
seanhalle@0 123 primitiveStartTime );
seanhalle@0 124 }
seanhalle@0 125
seanhalle@0 126 /*Just quick and dirty for now -- make reliable later
seanhalle@0 127 * will want this to jump back several times -- to be sure cache is warm
seanhalle@0 128 * because don't want comm time included in calc-time measurement -- and
seanhalle@0 129 * also to throw out any "weird" values due to OS interrupt or TSC rollover
seanhalle@0 130 */
seanhalle@0 131 int32
seanhalle@2 132 VSs__end_primitive_and_give_cycles()
seanhalle@0 133 { int32 endTime, startTime;
seanhalle@0 134 //TODO: fix by repeating time-measurement
seanhalle@0 135 saveLowTimeStampCountInto( endTime );
seanhalle@2 136 startTime =((VSsSemEnv*)(_VMSMasterEnv->semanticEnv))->primitiveStartTime;
seanhalle@0 137 return (endTime - startTime);
seanhalle@0 138 }
seanhalle@0 139
seanhalle@0 140 //===========================================================================
seanhalle@0 141
seanhalle@2 142 /*Initializes all the data-structures for a VSs system -- but doesn't
seanhalle@0 143 * start it running yet!
seanhalle@0 144 *
seanhalle@0 145 *This runs in the main thread -- before VMS starts up
seanhalle@0 146 *
seanhalle@0 147 *This sets up the semantic layer over the VMS system
seanhalle@0 148 *
seanhalle@0 149 *First, calls VMS_Setup, then creates own environment, making it ready
seanhalle@0 150 * for creating the seed processor and then starting the work.
seanhalle@0 151 */
seanhalle@0 152 void
seanhalle@2 153 VSs__init()
seanhalle@0 154 {
seanhalle@0 155 VMS_SS__init();
seanhalle@0 156 //masterEnv, a global var, now is partially set up by init_VMS
seanhalle@0 157 // after this, have VMS_int__malloc and VMS_int__free available
seanhalle@0 158
seanhalle@2 159 VSs__init_Helper();
seanhalle@0 160 }
seanhalle@0 161
seanhalle@0 162
seanhalle@0 163 void idle_fn(void* data, SlaveVP *animatingSlv){
seanhalle@0 164 while(1){
seanhalle@0 165 VMS_int__suspend_slaveVP_and_send_req(animatingSlv);
seanhalle@0 166 }
seanhalle@0 167 }
seanhalle@0 168
seanhalle@0 169 void
seanhalle@2 170 VSs__init_Helper()
seanhalle@2 171 { VSsSemEnv *semanticEnv;
seanhalle@0 172 PrivQueueStruc **readyVPQs;
seanhalle@0 173 int coreIdx, i, j;
seanhalle@0 174
seanhalle@0 175 //Hook up the semantic layer's plug-ins to the Master virt procr
seanhalle@2 176 _VMSMasterEnv->requestHandler = &VSs__Request_Handler;
seanhalle@2 177 _VMSMasterEnv->slaveAssigner = &VSs__assign_slaveVP_to_slot;
seanhalle@0 178 #ifdef HOLISTIC__TURN_ON_PERF_COUNTERS
seanhalle@2 179 _VMSMasterEnv->counterHandler = &VSs__counter_handler;
seanhalle@0 180 #endif
seanhalle@0 181
seanhalle@0 182 //create the semantic layer's environment (all its data) and add to
seanhalle@0 183 // the master environment
seanhalle@2 184 semanticEnv = VMS_int__malloc( sizeof( VSsSemEnv ) );
seanhalle@0 185 _VMSMasterEnv->semanticEnv = semanticEnv;
seanhalle@0 186
seanhalle@0 187 #ifdef HOLISTIC__TURN_ON_PERF_COUNTERS
seanhalle@2 188 VSs__init_counter_data_structs();
seanhalle@0 189 #endif
seanhalle@3 190
seanhalle@0 191 semanticEnv->shutdownInitiated = FALSE;
seanhalle@3 192 semanticEnv->coreIsDone = VMS_int__malloc( NUM_CORES * sizeof( bool32 ) );
seanhalle@3 193 for( i = 0; i < NUM_CORES; ++i )
seanhalle@3 194 { semanticEnv->coreIsDone[i] = FALSE;
seanhalle@3 195 for( j = 0; j < NUM_ANIM_SLOTS; ++j )
seanhalle@3 196 {
seanhalle@3 197 semanticEnv->idleSlv[i][j] = VMS_int__create_slaveVP(&idle_fn,NULL);
seanhalle@3 198 semanticEnv->idleSlv[i][j]->coreAnimatedBy = i;
seanhalle@0 199 }
seanhalle@3 200 }
seanhalle@0 201
seanhalle@0 202 #ifdef HOLISTIC__TURN_ON_OBSERVE_UCC
seanhalle@0 203 semanticEnv->unitList = makeListOfArrays(sizeof(Unit),128);
seanhalle@0 204 semanticEnv->ctlDependenciesList = makeListOfArrays(sizeof(Dependency),128);
seanhalle@0 205 semanticEnv->commDependenciesList = makeListOfArrays(sizeof(Dependency),128);
seanhalle@0 206 semanticEnv->dynDependenciesList = makeListOfArrays(sizeof(Dependency),128);
seanhalle@0 207 semanticEnv->ntonGroupsInfo = makePrivDynArrayOfSize((void***)&(semanticEnv->ntonGroups),8);
seanhalle@0 208
seanhalle@0 209 semanticEnv->hwArcs = makeListOfArrays(sizeof(Dependency),128);
seanhalle@0 210 memset(semanticEnv->last_in_slot,0,sizeof(NUM_CORES * NUM_ANIM_SLOTS * sizeof(Unit)));
seanhalle@0 211 #endif
seanhalle@0 212
seanhalle@3 213 //create the ready queue, hash tables used for matching and so forth
seanhalle@0 214 readyVPQs = VMS_int__malloc( NUM_CORES * sizeof(PrivQueueStruc *) );
seanhalle@0 215
seanhalle@0 216 for( coreIdx = 0; coreIdx < NUM_CORES; coreIdx++ )
seanhalle@0 217 {
seanhalle@0 218 readyVPQs[ coreIdx ] = makeVMSQ();
seanhalle@0 219 }
seanhalle@0 220
seanhalle@0 221 semanticEnv->readyVPQs = readyVPQs;
seanhalle@0 222
seanhalle@3 223 semanticEnv->taskReadyQ = makeVMSQ();
seanhalle@3 224
seanhalle@3 225 semanticEnv->nextCoreToGetNewSlv = 0;
seanhalle@0 226 semanticEnv->numSlaveVP = 0;
seanhalle@0 227
seanhalle@3 228 semanticEnv->argPtrHashTbl = makeHashTable32( 16, &VMS_int__free );
seanhalle@4 229 semanticEnv->commHashTbl = makeHashTable32( 16, &VMS_int__free );
seanhalle@0 230
seanhalle@0 231 //TODO: bug -- turn these arrays into dyn arrays to eliminate limit
seanhalle@0 232 //semanticEnv->singletonHasBeenExecutedFlags = makeDynArrayInfo( );
seanhalle@0 233 //semanticEnv->transactionStrucs = makeDynArrayInfo( );
seanhalle@0 234 for( i = 0; i < NUM_STRUCS_IN_SEM_ENV; i++ )
seanhalle@0 235 {
seanhalle@0 236 semanticEnv->fnSingletons[i].endInstrAddr = NULL;
seanhalle@0 237 semanticEnv->fnSingletons[i].hasBeenStarted = FALSE;
seanhalle@0 238 semanticEnv->fnSingletons[i].hasFinished = FALSE;
seanhalle@0 239 semanticEnv->fnSingletons[i].waitQ = makeVMSQ();
seanhalle@0 240 semanticEnv->transactionStrucs[i].waitingVPQ = makeVMSQ();
seanhalle@0 241 }
seanhalle@0 242 }
seanhalle@0 243
seanhalle@0 244
seanhalle@2 245 /*Frees any memory allocated by VSs__init() then calls VMS_int__shutdown
seanhalle@0 246 */
seanhalle@0 247 void
seanhalle@2 248 VSs__cleanup_after_shutdown()
seanhalle@2 249 { VSsSemEnv *semanticEnv;
seanhalle@0 250
seanhalle@0 251 semanticEnv = _VMSMasterEnv->semanticEnv;
seanhalle@0 252
seanhalle@0 253 #ifdef HOLISTIC__TURN_ON_OBSERVE_UCC
seanhalle@0 254 //UCC
seanhalle@0 255 FILE* output;
seanhalle@0 256 int n;
seanhalle@0 257 char filename[255];
seanhalle@0 258 for(n=0;n<255;n++)
seanhalle@0 259 {
seanhalle@0 260 sprintf(filename, "./counters/UCC.%d",n);
seanhalle@0 261 output = fopen(filename,"r");
seanhalle@0 262 if(output)
seanhalle@0 263 {
seanhalle@0 264 fclose(output);
seanhalle@0 265 }else{
seanhalle@0 266 break;
seanhalle@0 267 }
seanhalle@0 268 }
seanhalle@0 269 if(n<255){
seanhalle@0 270 printf("Saving UCC to File: %s ...\n", filename);
seanhalle@0 271 output = fopen(filename,"w+");
seanhalle@0 272 if(output!=NULL){
seanhalle@0 273 set_dependency_file(output);
seanhalle@0 274 //fprintf(output,"digraph Dependencies {\n");
seanhalle@0 275 //set_dot_file(output);
seanhalle@0 276 //FIXME: first line still depends on counters being enabled, replace w/ unit struct!
seanhalle@0 277 //forAllInDynArrayDo(_VMSMasterEnv->counter_history_array_info, &print_dot_node_info );
seanhalle@0 278 forAllInListOfArraysDo(semanticEnv->unitList, &print_unit_to_file);
seanhalle@0 279 forAllInListOfArraysDo( semanticEnv->commDependenciesList, &print_comm_dependency_to_file );
seanhalle@0 280 forAllInListOfArraysDo( semanticEnv->ctlDependenciesList, &print_ctl_dependency_to_file );
seanhalle@0 281 forAllInDynArrayDo(semanticEnv->ntonGroupsInfo,&print_nton_to_file);
seanhalle@0 282 //fprintf(output,"}\n");
seanhalle@0 283 fflush(output);
seanhalle@0 284
seanhalle@0 285 } else
seanhalle@0 286 printf("Opening UCC file failed. Please check that folder \"counters\" exists in run directory and has write permission.\n");
seanhalle@0 287 } else {
seanhalle@0 288 printf("Could not open UCC file, please clean \"counters\" folder. (Must contain less than 255 files.)\n");
seanhalle@0 289 }
seanhalle@0 290 //Loop Graph
seanhalle@0 291 for(n=0;n<255;n++)
seanhalle@0 292 {
seanhalle@0 293 sprintf(filename, "./counters/LoopGraph.%d",n);
seanhalle@0 294 output = fopen(filename,"r");
seanhalle@0 295 if(output)
seanhalle@0 296 {
seanhalle@0 297 fclose(output);
seanhalle@0 298 }else{
seanhalle@0 299 break;
seanhalle@0 300 }
seanhalle@0 301 }
seanhalle@0 302 if(n<255){
seanhalle@0 303 printf("Saving LoopGraph to File: %s ...\n", filename);
seanhalle@0 304 output = fopen(filename,"w+");
seanhalle@0 305 if(output!=NULL){
seanhalle@0 306 set_dependency_file(output);
seanhalle@0 307 //fprintf(output,"digraph Dependencies {\n");
seanhalle@0 308 //set_dot_file(output);
seanhalle@0 309 //FIXME: first line still depends on counters being enabled, replace w/ unit struct!
seanhalle@0 310 //forAllInDynArrayDo(_VMSMasterEnv->counter_history_array_info, &print_dot_node_info );
seanhalle@0 311 forAllInListOfArraysDo( semanticEnv->unitList, &print_unit_to_file );
seanhalle@0 312 forAllInListOfArraysDo( semanticEnv->commDependenciesList, &print_comm_dependency_to_file );
seanhalle@0 313 forAllInListOfArraysDo( semanticEnv->ctlDependenciesList, &print_ctl_dependency_to_file );
seanhalle@0 314 forAllInListOfArraysDo( semanticEnv->dynDependenciesList, &print_dyn_dependency_to_file );
seanhalle@0 315 forAllInListOfArraysDo( semanticEnv->hwArcs, &print_hw_dependency_to_file );
seanhalle@0 316 //fprintf(output,"}\n");
seanhalle@0 317 fflush(output);
seanhalle@0 318
seanhalle@0 319 } else
seanhalle@0 320 printf("Opening LoopGraph file failed. Please check that folder \"counters\" exists in run directory and has write permission.\n");
seanhalle@0 321 } else {
seanhalle@0 322 printf("Could not open LoopGraph file, please clean \"counters\" folder. (Must contain less than 255 files.)\n");
seanhalle@0 323 }
seanhalle@0 324
seanhalle@0 325
seanhalle@0 326 freeListOfArrays(semanticEnv->unitList);
seanhalle@0 327 freeListOfArrays(semanticEnv->commDependenciesList);
seanhalle@0 328 freeListOfArrays(semanticEnv->ctlDependenciesList);
seanhalle@0 329 freeListOfArrays(semanticEnv->dynDependenciesList);
seanhalle@0 330
seanhalle@0 331 #endif
seanhalle@0 332 #ifdef HOLISTIC__TURN_ON_PERF_COUNTERS
seanhalle@0 333 for(n=0;n<255;n++)
seanhalle@0 334 {
seanhalle@0 335 sprintf(filename, "./counters/Counters.%d.csv",n);
seanhalle@0 336 output = fopen(filename,"r");
seanhalle@0 337 if(output)
seanhalle@0 338 {
seanhalle@0 339 fclose(output);
seanhalle@0 340 }else{
seanhalle@0 341 break;
seanhalle@0 342 }
seanhalle@0 343 }
seanhalle@0 344 if(n<255){
seanhalle@0 345 printf("Saving Counter measurements to File: %s ...\n", filename);
seanhalle@0 346 output = fopen(filename,"w+");
seanhalle@0 347 if(output!=NULL){
seanhalle@0 348 set_counter_file(output);
seanhalle@0 349 int i;
seanhalle@0 350 for(i=0;i<NUM_CORES;i++){
seanhalle@0 351 forAllInListOfArraysDo( semanticEnv->counterList[i], &print_counter_events_to_file );
seanhalle@0 352 fflush(output);
seanhalle@0 353 }
seanhalle@0 354
seanhalle@0 355 } else
seanhalle@0 356 printf("Opening UCC file failed. Please check that folder \"counters\" exists in run directory and has write permission.\n");
seanhalle@0 357 } else {
seanhalle@0 358 printf("Could not open UCC file, please clean \"counters\" folder. (Must contain less than 255 files.)\n");
seanhalle@0 359 }
seanhalle@0 360
seanhalle@0 361 #endif
seanhalle@0 362 /* It's all allocated inside VMS's big chunk -- that's about to be freed, so
seanhalle@0 363 * nothing to do here
seanhalle@0 364
seanhalle@0 365
seanhalle@0 366 for( coreIdx = 0; coreIdx < NUM_CORES; coreIdx++ )
seanhalle@0 367 {
seanhalle@0 368 VMS_int__free( semanticEnv->readyVPQs[coreIdx]->startOfData );
seanhalle@0 369 VMS_int__free( semanticEnv->readyVPQs[coreIdx] );
seanhalle@0 370 }
seanhalle@0 371 VMS_int__free( semanticEnv->readyVPQs );
seanhalle@0 372
seanhalle@0 373 freeHashTable( semanticEnv->commHashTbl );
seanhalle@0 374 VMS_int__free( _VMSMasterEnv->semanticEnv );
seanhalle@0 375 */
seanhalle@0 376 VMS_SS__cleanup_at_end_of_shutdown();
seanhalle@0 377 }
seanhalle@0 378
seanhalle@0 379
seanhalle@0 380 //===========================================================================
seanhalle@0 381
seanhalle@0 382 /*
seanhalle@0 383 */
seanhalle@2 384 SlaveVP *
seanhalle@2 385 VSs__create_slave_with( TopLevelFnPtr fnPtr, void *initData,
seanhalle@3 386 SlaveVP *creatingSlv )
seanhalle@2 387 { VSsSemReq reqData;
seanhalle@0 388
seanhalle@0 389 //the semantic request data is on the stack and disappears when this
seanhalle@0 390 // call returns -- it's guaranteed to remain in the VP's stack for as
seanhalle@0 391 // long as the VP is suspended.
seanhalle@0 392 reqData.reqType = 0; //know type because in a VMS create req
seanhalle@0 393 reqData.coreToAssignOnto = -1; //means round-robin assign
seanhalle@0 394 reqData.fnPtr = fnPtr;
seanhalle@0 395 reqData.initData = initData;
seanhalle@3 396 reqData.callingSlv = creatingSlv;
seanhalle@0 397
seanhalle@3 398 VMS_WL__send_create_slaveVP_req( &reqData, creatingSlv );
seanhalle@0 399
seanhalle@3 400 return creatingSlv->dataRetFromReq;
seanhalle@0 401 }
seanhalle@0 402
seanhalle@2 403 SlaveVP *
seanhalle@2 404 VSs__create_slave_with_affinity( TopLevelFnPtr fnPtr, void *initData,
seanhalle@3 405 SlaveVP *creatingSlv, int32 coreToAssignOnto )
seanhalle@2 406 { VSsSemReq reqData;
seanhalle@0 407
seanhalle@0 408 //the semantic request data is on the stack and disappears when this
seanhalle@0 409 // call returns -- it's guaranteed to remain in the VP's stack for as
seanhalle@0 410 // long as the VP is suspended.
seanhalle@3 411 reqData.reqType = create_slave_w_aff; //not used, May 2012
seanhalle@2 412 reqData.coreToAssignOnto = coreToAssignOnto;
seanhalle@0 413 reqData.fnPtr = fnPtr;
seanhalle@0 414 reqData.initData = initData;
seanhalle@3 415 reqData.callingSlv = creatingSlv;
seanhalle@0 416
seanhalle@3 417 VMS_WL__send_create_slaveVP_req( &reqData, creatingSlv );
seanhalle@0 418
seanhalle@3 419 return creatingSlv->dataRetFromReq;
seanhalle@0 420 }
seanhalle@0 421
seanhalle@0 422
seanhalle@2 423 void
seanhalle@2 424 VSs__dissipate_slave( SlaveVP *slaveToDissipate )
seanhalle@0 425 {
seanhalle@2 426 VMS_WL__send_dissipate_req( slaveToDissipate );
seanhalle@0 427 }
seanhalle@0 428
seanhalle@0 429
seanhalle@0 430 //===========================================================================
seanhalle@0 431
seanhalle@0 432
seanhalle@4 433 //======================= task submit and end ==============================
seanhalle@4 434 /*
seanhalle@2 435 */
seanhalle@4 436 void
seanhalle@2 437 VSs__submit_task( VSsTaskType *taskType, void *args, SlaveVP *animSlv)
seanhalle@2 438 { VSsSemReq reqData;
seanhalle@0 439
seanhalle@2 440 reqData.reqType = submit_task;
seanhalle@4 441
seanhalle@2 442 reqData.taskType = taskType;
seanhalle@2 443 reqData.args = args;
seanhalle@4 444 reqData.callingSlv = animSlv;
seanhalle@2 445
seanhalle@4 446 reqData.taskID = NULL;
seanhalle@2 447
seanhalle@2 448 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 449 }
seanhalle@0 450
seanhalle@4 451 inline int32 *
seanhalle@4 452 VSs__create_taskID_of_size( int32 numInts, SlaveVP *animSlv )
seanhalle@4 453 { int32 *taskID;
seanhalle@4 454
seanhalle@4 455 taskID = VMS_WL__malloc( sizeof(int32) + numInts * sizeof(int32) );
seanhalle@4 456 taskID[0] = numInts;
seanhalle@4 457 return taskID;
seanhalle@4 458 }
seanhalle@4 459
seanhalle@4 460 void
seanhalle@4 461 VSs__submit_task_with_ID( VSsTaskType *taskType, void *args, int32 *taskID,
seanhalle@4 462 SlaveVP *animSlv)
seanhalle@4 463 { VSsSemReq reqData;
seanhalle@4 464
seanhalle@4 465 reqData.reqType = submit_task;
seanhalle@4 466
seanhalle@4 467 reqData.taskType = taskType;
seanhalle@4 468 reqData.args = args;
seanhalle@4 469 reqData.taskID = taskID;
seanhalle@4 470 reqData.callingSlv = animSlv;
seanhalle@4 471
seanhalle@4 472 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@4 473 }
seanhalle@4 474
seanhalle@4 475
seanhalle@4 476 /*This call is the last to happen in every task. It causes the slave to
seanhalle@2 477 * suspend and get the next task out of the task-queue. Notice there is no
seanhalle@2 478 * assigner here.. only one slave, no slave ReadyQ, and so on..
seanhalle@2 479 *Can either make the assigner take the next task out of the taskQ, or can
seanhalle@2 480 * leave all as it is, and make task-end take the next task.
seanhalle@2 481 *Note: this fits the case in the new VMS for no-context tasks, so will use
seanhalle@2 482 * the built-in taskQ of new VMS, and should be local and much faster.
seanhalle@2 483 *
seanhalle@2 484 *The task-stub is saved in the animSlv, so the request handler will get it
seanhalle@2 485 * from there, along with the task-type which has arg types, and so on..
seanhalle@4 486 *
seanhalle@4 487 * NOTE: if want, don't need to send the animating SlaveVP around..
seanhalle@4 488 * instead, can make a single slave per core, and coreCtrlr looks up the
seanhalle@4 489 * slave from having the core number.
seanhalle@4 490 *
seanhalle@4 491 *But, to stay compatible with all the other VMS languages, leave it in..
seanhalle@0 492 */
seanhalle@0 493 void
seanhalle@2 494 VSs__end_task( SlaveVP *animSlv )
seanhalle@2 495 { VSsSemReq reqData;
seanhalle@0 496
seanhalle@2 497 reqData.reqType = end_task;
seanhalle@2 498 reqData.callingSlv = animSlv;
seanhalle@2 499
seanhalle@2 500 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 501 }
seanhalle@0 502
seanhalle@4 503
nengel@5 504 void
nengel@5 505 VSs__taskwait(SlaveVP *animSlv)
nengel@5 506 {
nengel@5 507 VSsSemReq reqData;
nengel@5 508
nengel@5 509 reqData.reqType = taskwait;
nengel@5 510 reqData.callingSlv = animSlv;
nengel@5 511
nengel@5 512 VMS_WL__send_sem_request( &reqData, animSlv );
nengel@5 513 }
nengel@5 514
nengel@5 515
nengel@5 516
seanhalle@4 517 //========================== send and receive ============================
seanhalle@4 518 //
seanhalle@4 519
seanhalle@4 520 inline int32 *
seanhalle@4 521 VSs__give_self_taskID( SlaveVP *animSlv )
seanhalle@4 522 {
seanhalle@4 523 return ((VSsSemData*)animSlv->semanticData)->taskStub->taskID;
seanhalle@4 524 }
seanhalle@4 525
seanhalle@4 526 //================================ send ===================================
seanhalle@4 527
seanhalle@4 528 void
seanhalle@4 529 VSs__send_of_type_to( void *msg, const int32 type, int32 *receiverID,
seanhalle@4 530 SlaveVP *senderSlv )
seanhalle@4 531 { VSsSemReq reqData;
seanhalle@4 532
seanhalle@4 533 reqData.reqType = send_type_to;
seanhalle@4 534
seanhalle@4 535 reqData.msg = msg;
seanhalle@4 536 reqData.msgType = type;
seanhalle@4 537 reqData.receiverID = receiverID;
seanhalle@4 538 reqData.senderSlv = senderSlv;
seanhalle@4 539
seanhalle@4 540 reqData.nextReqInHashEntry = NULL;
seanhalle@4 541
seanhalle@4 542 VMS_WL__send_sem_request( &reqData, senderSlv );
seanhalle@4 543
seanhalle@4 544 //When come back from suspend, no longer own data reachable from msg
seanhalle@4 545 }
seanhalle@4 546
seanhalle@4 547 void
seanhalle@4 548 VSs__send_from_to( void *msg, int32 *senderID, int32 *receiverID, SlaveVP *senderSlv )
seanhalle@4 549 { VSsSemReq reqData;
seanhalle@4 550
seanhalle@4 551 reqData.reqType = send_from_to;
seanhalle@4 552
seanhalle@4 553 reqData.msg = msg;
seanhalle@4 554 reqData.senderID = senderID;
seanhalle@4 555 reqData.receiverID = receiverID;
seanhalle@4 556 reqData.senderSlv = senderSlv;
seanhalle@4 557
seanhalle@4 558 reqData.nextReqInHashEntry = NULL;
seanhalle@4 559
seanhalle@4 560 VMS_WL__send_sem_request( &reqData, senderSlv );
seanhalle@4 561 }
seanhalle@4 562
seanhalle@4 563
seanhalle@4 564 //================================ receive ================================
seanhalle@4 565
seanhalle@4 566 /*The "type" version of send and receive creates a many-to-one relationship.
seanhalle@4 567 * The sender is anonymous, and many sends can stack up, waiting to be
seanhalle@4 568 * received. The same receiver can also have send from-to's
seanhalle@4 569 * waiting for it, and those will be kept separate from the "type"
seanhalle@4 570 * messages.
seanhalle@4 571 */
seanhalle@4 572 void *
seanhalle@4 573 VSs__receive_type_to( const int32 type, int32* receiverID, SlaveVP *receiverSlv )
seanhalle@4 574 { DEBUG__printf1(dbgRqstHdlr,"WL: receive type to %d",receiverID[1] );
seanhalle@4 575 VSsSemReq reqData;
seanhalle@4 576
seanhalle@4 577 reqData.reqType = receive_type_to;
seanhalle@4 578
seanhalle@4 579 reqData.msgType = type;
seanhalle@4 580 reqData.receiverID = receiverID;
seanhalle@4 581 reqData.receiverSlv = receiverSlv;
seanhalle@4 582
seanhalle@4 583 reqData.nextReqInHashEntry = NULL;
seanhalle@4 584
seanhalle@4 585 VMS_WL__send_sem_request( &reqData, receiverSlv );
seanhalle@4 586
seanhalle@4 587 return receiverSlv->dataRetFromReq;
seanhalle@4 588 }
seanhalle@4 589
seanhalle@4 590
seanhalle@4 591
seanhalle@4 592 /*Call this at the point a receiving task wants in-coming data.
seanhalle@4 593 * Use this from-to form when know senderID -- it makes a direct channel
seanhalle@4 594 * between sender and receiver.
seanhalle@4 595 */
seanhalle@4 596 void *
seanhalle@4 597 VSs__receive_from_to( int32 *senderID, int32 *receiverID, SlaveVP *receiverSlv )
seanhalle@4 598 {
seanhalle@4 599 VSsSemReq reqData;
seanhalle@4 600
seanhalle@4 601 reqData.reqType = receive_from_to;
seanhalle@4 602
seanhalle@4 603 reqData.senderID = senderID;
seanhalle@4 604 reqData.receiverID = receiverID;
seanhalle@4 605 reqData.receiverSlv = receiverSlv;
seanhalle@4 606
seanhalle@4 607 reqData.nextReqInHashEntry = NULL;
seanhalle@4 608 DEBUG__printf2(dbgRqstHdlr,"WL: receive from %d to: %d", reqData.senderID[1], reqData.receiverID[1]);
seanhalle@4 609
seanhalle@4 610 VMS_WL__send_sem_request( &reqData, receiverSlv );
seanhalle@4 611
seanhalle@4 612 return receiverSlv->dataRetFromReq;
seanhalle@4 613 }
seanhalle@4 614
seanhalle@4 615
seanhalle@4 616
seanhalle@4 617
seanhalle@2 618 //==========================================================================
seanhalle@0 619 //
seanhalle@0 620 /*A function singleton is a function whose body executes exactly once, on a
seanhalle@0 621 * single core, no matter how many times the fuction is called and no
seanhalle@0 622 * matter how many cores or the timing of cores calling it.
seanhalle@0 623 *
seanhalle@0 624 *A data singleton is a ticket attached to data. That ticket can be used
seanhalle@0 625 * to get the data through the function exactly once, no matter how many
seanhalle@0 626 * times the data is given to the function, and no matter the timing of
seanhalle@0 627 * trying to get the data through from different cores.
seanhalle@0 628 */
seanhalle@0 629
seanhalle@0 630 /*asm function declarations*/
seanhalle@2 631 void asm_save_ret_to_singleton(VSsSingleton *singletonPtrAddr);
seanhalle@2 632 void asm_write_ret_from_singleton(VSsSingleton *singletonPtrAddr);
seanhalle@0 633
seanhalle@0 634 /*Fn singleton uses ID as index into array of singleton structs held in the
seanhalle@0 635 * semantic environment.
seanhalle@0 636 */
seanhalle@0 637 void
seanhalle@3 638 VSs__start_fn_singleton( int32 singletonID, SlaveVP *animSlv )
seanhalle@0 639 {
seanhalle@2 640 VSsSemReq reqData;
seanhalle@0 641
seanhalle@0 642 //
seanhalle@0 643 reqData.reqType = singleton_fn_start;
seanhalle@0 644 reqData.singletonID = singletonID;
seanhalle@0 645
seanhalle@3 646 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@3 647 if( animSlv->dataRetFromReq ) //will be 0 or addr of label in end singleton
seanhalle@0 648 {
seanhalle@3 649 VSsSemEnv *semEnv = VMS_int__give_sem_env_for( animSlv );
seanhalle@0 650 asm_write_ret_from_singleton(&(semEnv->fnSingletons[ singletonID]));
seanhalle@0 651 }
seanhalle@0 652 }
seanhalle@0 653
seanhalle@0 654 /*Data singleton hands addr of loc holding a pointer to a singleton struct.
seanhalle@0 655 * The start_data_singleton makes the structure and puts its addr into the
seanhalle@0 656 * location.
seanhalle@0 657 */
seanhalle@0 658 void
seanhalle@3 659 VSs__start_data_singleton( VSsSingleton **singletonAddr, SlaveVP *animSlv )
seanhalle@0 660 {
seanhalle@2 661 VSsSemReq reqData;
seanhalle@0 662
seanhalle@0 663 if( *singletonAddr && (*singletonAddr)->hasFinished )
seanhalle@0 664 goto JmpToEndSingleton;
seanhalle@0 665
seanhalle@0 666 reqData.reqType = singleton_data_start;
seanhalle@0 667 reqData.singletonPtrAddr = singletonAddr;
seanhalle@0 668
seanhalle@3 669 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@3 670 if( animSlv->dataRetFromReq ) //either 0 or end singleton's return addr
seanhalle@0 671 { //Assembly code changes the return addr on the stack to the one
seanhalle@0 672 // saved into the singleton by the end-singleton-fn
seanhalle@0 673 //The return addr is at 0x4(%%ebp)
seanhalle@0 674 JmpToEndSingleton:
seanhalle@0 675 asm_write_ret_from_singleton(*singletonAddr);
seanhalle@0 676 }
seanhalle@0 677 //now, simply return
seanhalle@0 678 //will exit either from the start singleton call or the end-singleton call
seanhalle@0 679 }
seanhalle@0 680
seanhalle@0 681 /*Uses ID as index into array of flags. If flag already set, resumes from
seanhalle@0 682 * end-label. Else, sets flag and resumes normally.
seanhalle@0 683 *
seanhalle@0 684 *Note, this call cannot be inlined because the instr addr at the label
seanhalle@0 685 * inside is shared by all invocations of a given singleton ID.
seanhalle@0 686 */
seanhalle@0 687 void
seanhalle@3 688 VSs__end_fn_singleton( int32 singletonID, SlaveVP *animSlv )
seanhalle@0 689 {
seanhalle@2 690 VSsSemReq reqData;
seanhalle@0 691
seanhalle@0 692 //don't need this addr until after at least one singleton has reached
seanhalle@0 693 // this function
seanhalle@3 694 VSsSemEnv *semEnv = VMS_int__give_sem_env_for( animSlv );
seanhalle@0 695 asm_write_ret_from_singleton(&(semEnv->fnSingletons[ singletonID]));
seanhalle@0 696
seanhalle@0 697 reqData.reqType = singleton_fn_end;
seanhalle@0 698 reqData.singletonID = singletonID;
seanhalle@0 699
seanhalle@3 700 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 701
seanhalle@0 702 EndSingletonInstrAddr:
seanhalle@0 703 return;
seanhalle@0 704 }
seanhalle@0 705
seanhalle@0 706 void
seanhalle@3 707 VSs__end_data_singleton( VSsSingleton **singletonPtrAddr, SlaveVP *animSlv )
seanhalle@0 708 {
seanhalle@2 709 VSsSemReq reqData;
seanhalle@0 710
seanhalle@0 711 //don't need this addr until after singleton struct has reached
seanhalle@0 712 // this function for first time
seanhalle@0 713 //do assembly that saves the return addr of this fn call into the
seanhalle@0 714 // data singleton -- that data-singleton can only be given to exactly
seanhalle@0 715 // one instance in the code of this function. However, can use this
seanhalle@0 716 // function in different places for different data-singletons.
seanhalle@0 717 // (*(singletonAddr))->endInstrAddr = &&EndDataSingletonInstrAddr;
seanhalle@0 718
seanhalle@0 719
seanhalle@0 720 asm_save_ret_to_singleton(*singletonPtrAddr);
seanhalle@0 721
seanhalle@0 722 reqData.reqType = singleton_data_end;
seanhalle@0 723 reqData.singletonPtrAddr = singletonPtrAddr;
seanhalle@0 724
seanhalle@3 725 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 726 }
seanhalle@0 727
seanhalle@0 728 /*This executes the function in the masterVP, so it executes in isolation
seanhalle@0 729 * from any other copies -- only one copy of the function can ever execute
seanhalle@0 730 * at a time.
seanhalle@0 731 *
seanhalle@0 732 *It suspends to the master, and the request handler takes the function
seanhalle@0 733 * pointer out of the request and calls it, then resumes the VP.
seanhalle@0 734 *Only very short functions should be called this way -- for longer-running
seanhalle@0 735 * isolation, use transaction-start and transaction-end, which run the code
seanhalle@0 736 * between as work-code.
seanhalle@0 737 */
seanhalle@0 738 void
seanhalle@2 739 VSs__animate_short_fn_in_isolation( PtrToAtomicFn ptrToFnToExecInMaster,
seanhalle@3 740 void *data, SlaveVP *animSlv )
seanhalle@0 741 {
seanhalle@2 742 VSsSemReq reqData;
seanhalle@0 743
seanhalle@0 744 //
seanhalle@0 745 reqData.reqType = atomic;
seanhalle@0 746 reqData.fnToExecInMaster = ptrToFnToExecInMaster;
seanhalle@0 747 reqData.dataForFn = data;
seanhalle@0 748
seanhalle@3 749 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 750 }
seanhalle@0 751
seanhalle@0 752
seanhalle@0 753 /*This suspends to the master.
seanhalle@0 754 *First, it looks at the VP's data, to see the highest transactionID that VP
seanhalle@0 755 * already has entered. If the current ID is not larger, it throws an
seanhalle@0 756 * exception stating a bug in the code. Otherwise it puts the current ID
seanhalle@0 757 * there, and adds the ID to a linked list of IDs entered -- the list is
seanhalle@0 758 * used to check that exits are properly ordered.
seanhalle@0 759 *Next it is uses transactionID as index into an array of transaction
seanhalle@0 760 * structures.
seanhalle@0 761 *If the "VP_currently_executing" field is non-null, then put requesting VP
seanhalle@0 762 * into queue in the struct. (At some point a holder will request
seanhalle@0 763 * end-transaction, which will take this VP from the queue and resume it.)
seanhalle@0 764 *If NULL, then write requesting into the field and resume.
seanhalle@0 765 */
seanhalle@0 766 void
seanhalle@3 767 VSs__start_transaction( int32 transactionID, SlaveVP *animSlv )
seanhalle@0 768 {
seanhalle@2 769 VSsSemReq reqData;
seanhalle@0 770
seanhalle@0 771 //
seanhalle@3 772 reqData.callingSlv = animSlv;
seanhalle@0 773 reqData.reqType = trans_start;
seanhalle@0 774 reqData.transID = transactionID;
seanhalle@0 775
seanhalle@3 776 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 777 }
seanhalle@0 778
seanhalle@0 779 /*This suspends to the master, then uses transactionID as index into an
seanhalle@0 780 * array of transaction structures.
seanhalle@0 781 *It looks at VP_currently_executing to be sure it's same as requesting VP.
seanhalle@0 782 * If different, throws an exception, stating there's a bug in the code.
seanhalle@0 783 *Next it looks at the queue in the structure.
seanhalle@0 784 *If it's empty, it sets VP_currently_executing field to NULL and resumes.
seanhalle@0 785 *If something in, gets it, sets VP_currently_executing to that VP, then
seanhalle@0 786 * resumes both.
seanhalle@0 787 */
seanhalle@0 788 void
seanhalle@3 789 VSs__end_transaction( int32 transactionID, SlaveVP *animSlv )
seanhalle@0 790 {
seanhalle@2 791 VSsSemReq reqData;
seanhalle@0 792
seanhalle@0 793 //
seanhalle@3 794 reqData.callingSlv = animSlv;
seanhalle@0 795 reqData.reqType = trans_end;
seanhalle@0 796 reqData.transID = transactionID;
seanhalle@0 797
seanhalle@3 798 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 799 }