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Initial add -- code is straight copy of VSs implementation.. to be modified
author Sean Halle <seanhalle@yahoo.com>
date Mon, 27 Aug 2012 02:14:35 -0700
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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@0 14 #include "VSs.h"
seanhalle@0 15 #include "Measurement/VSs_Counter_Recording.h"
seanhalle@0 16
seanhalle@0 17 //==========================================================================
seanhalle@0 18
seanhalle@0 19 void
seanhalle@0 20 VSs__init();
seanhalle@0 21
seanhalle@0 22 void
seanhalle@0 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@0 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@0 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@0 45 *3) it creates the seed VSs processor, with the data to start it with.
seanhalle@0 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@0 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@0 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@0 75 VSs__create_seed_slave_and_do_work( TopLevelFnPtr fnPtr, void *initData )
seanhalle@0 76 { VSsSemEnv *semEnv;
seanhalle@0 77 SlaveVP *seedSlv;
seanhalle@0 78 VSsSemData *semData;
seanhalle@0 79 VSsTaskStub *threadTaskStub, *parentTaskStub;
seanhalle@0 80
seanhalle@0 81 VSs__init(); //normal multi-thd
seanhalle@0 82
seanhalle@0 83 semEnv = _VMSMasterEnv->semanticEnv;
seanhalle@0 84
seanhalle@0 85 //VSs starts with one processor, which is put into initial environ,
seanhalle@0 86 // and which then calls create() to create more, thereby expanding work
seanhalle@0 87 seedSlv = VSs__create_slave_helper( fnPtr, initData,
seanhalle@0 88 semEnv, semEnv->nextCoreToGetNewSlv++ );
seanhalle@0 89
seanhalle@0 90 //seed slave is a thread slave, so make a thread's task stub for it
seanhalle@0 91 // and then make another to stand for the seed's parent task. Make
seanhalle@0 92 // the parent be already ended, and have one child (the seed). This
seanhalle@0 93 // will make the dissipate handler do the right thing when the seed
seanhalle@0 94 // is dissipated.
seanhalle@0 95 threadTaskStub = create_thread_task_stub( initData );
seanhalle@0 96 parentTaskStub = create_thread_task_stub( NULL );
seanhalle@0 97 parentTaskStub->isEnded = TRUE;
seanhalle@0 98 parentTaskStub->numLiveChildThreads = 1; //so dissipate works for seed
seanhalle@0 99 threadTaskStub->parentTaskStub = parentTaskStub;
seanhalle@0 100
seanhalle@0 101 semData = (VSsSemData *)seedSlv->semanticData;
seanhalle@0 102 //seedVP is a thread, so has a permanent task
seanhalle@0 103 semData->needsTaskAssigned = FALSE;
seanhalle@0 104 semData->taskStub = threadTaskStub;
seanhalle@0 105 semData->slaveType = ThreadSlv;
seanhalle@0 106
seanhalle@0 107 resume_slaveVP( seedSlv, semEnv ); //returns right away, just queues Slv
seanhalle@0 108
seanhalle@0 109 VMS_SS__start_the_work_then_wait_until_done(); //normal multi-thd
seanhalle@0 110
seanhalle@0 111 VSs__cleanup_after_shutdown();
seanhalle@0 112 }
seanhalle@0 113
seanhalle@0 114
seanhalle@0 115 int32
seanhalle@0 116 VSs__giveMinWorkUnitCycles( float32 percentOverhead )
seanhalle@0 117 {
seanhalle@0 118 return MIN_WORK_UNIT_CYCLES;
seanhalle@0 119 }
seanhalle@0 120
seanhalle@0 121 int32
seanhalle@0 122 VSs__giveIdealNumWorkUnits()
seanhalle@0 123 {
seanhalle@0 124 return NUM_ANIM_SLOTS * NUM_CORES;
seanhalle@0 125 }
seanhalle@0 126
seanhalle@0 127 int32
seanhalle@0 128 VSs__give_number_of_cores_to_schedule_onto()
seanhalle@0 129 {
seanhalle@0 130 return NUM_CORES;
seanhalle@0 131 }
seanhalle@0 132
seanhalle@0 133 /*For now, use TSC -- later, make these two macros with assembly that first
seanhalle@0 134 * saves jump point, and second jumps back several times to get reliable time
seanhalle@0 135 */
seanhalle@0 136 void
seanhalle@0 137 VSs__start_primitive()
seanhalle@0 138 { saveLowTimeStampCountInto( ((VSsSemEnv *)(_VMSMasterEnv->semanticEnv))->
seanhalle@0 139 primitiveStartTime );
seanhalle@0 140 }
seanhalle@0 141
seanhalle@0 142 /*Just quick and dirty for now -- make reliable later
seanhalle@0 143 * will want this to jump back several times -- to be sure cache is warm
seanhalle@0 144 * because don't want comm time included in calc-time measurement -- and
seanhalle@0 145 * also to throw out any "weird" values due to OS interrupt or TSC rollover
seanhalle@0 146 */
seanhalle@0 147 int32
seanhalle@0 148 VSs__end_primitive_and_give_cycles()
seanhalle@0 149 { int32 endTime, startTime;
seanhalle@0 150 //TODO: fix by repeating time-measurement
seanhalle@0 151 saveLowTimeStampCountInto( endTime );
seanhalle@0 152 startTime =((VSsSemEnv*)(_VMSMasterEnv->semanticEnv))->primitiveStartTime;
seanhalle@0 153 return (endTime - startTime);
seanhalle@0 154 }
seanhalle@0 155
seanhalle@0 156 //===========================================================================
seanhalle@0 157
seanhalle@0 158 /*Initializes all the data-structures for a VSs system -- but doesn't
seanhalle@0 159 * start it running yet!
seanhalle@0 160 *
seanhalle@0 161 *This runs in the main thread -- before VMS starts up
seanhalle@0 162 *
seanhalle@0 163 *This sets up the semantic layer over the VMS system
seanhalle@0 164 *
seanhalle@0 165 *First, calls VMS_Setup, then creates own environment, making it ready
seanhalle@0 166 * for creating the seed processor and then starting the work.
seanhalle@0 167 */
seanhalle@0 168 void
seanhalle@0 169 VSs__init()
seanhalle@0 170 {
seanhalle@0 171 VMS_SS__init();
seanhalle@0 172 //masterEnv, a global var, now is partially set up by init_VMS
seanhalle@0 173 // after this, have VMS_int__malloc and VMS_int__free available
seanhalle@0 174
seanhalle@0 175 VSs__init_Helper();
seanhalle@0 176 }
seanhalle@0 177
seanhalle@0 178
seanhalle@0 179 void idle_fn(void* data, SlaveVP *animatingSlv){
seanhalle@0 180 while(1){
seanhalle@0 181 VMS_int__suspend_slaveVP_and_send_req(animatingSlv);
seanhalle@0 182 }
seanhalle@0 183 }
seanhalle@0 184
seanhalle@0 185 void
seanhalle@0 186 VSs__init_Helper()
seanhalle@0 187 { VSsSemEnv *semanticEnv;
seanhalle@0 188 int32 i, coreNum, slotNum;
seanhalle@0 189 VSsSemData *semData;
seanhalle@0 190
seanhalle@0 191 //Hook up the semantic layer's plug-ins to the Master virt procr
seanhalle@0 192 _VMSMasterEnv->requestHandler = &VSs__Request_Handler;
seanhalle@0 193 _VMSMasterEnv->slaveAssigner = &VSs__assign_slaveVP_to_slot;
seanhalle@0 194
seanhalle@0 195 //create the semantic layer's environment (all its data) and add to
seanhalle@0 196 // the master environment
seanhalle@0 197 semanticEnv = VMS_int__malloc( sizeof( VSsSemEnv ) );
seanhalle@0 198 _VMSMasterEnv->semanticEnv = semanticEnv;
seanhalle@0 199
seanhalle@0 200 #ifdef HOLISTIC__TURN_ON_PERF_COUNTERS
seanhalle@0 201 _VMSMasterEnv->counterHandler = &VSs__counter_handler;
seanhalle@0 202 VSs__init_counter_data_structs();
seanhalle@0 203 #endif
seanhalle@0 204
seanhalle@0 205 semanticEnv->shutdownInitiated = FALSE;
seanhalle@0 206 semanticEnv->coreIsDone = VMS_int__malloc( NUM_CORES * sizeof( bool32 ) );
seanhalle@0 207 //For each animation slot, there is an idle slave, and an initial
seanhalle@0 208 // slave assigned as the current-task-slave. Create them here.
seanhalle@0 209 SlaveVP *idleSlv, *slotTaskSlv;
seanhalle@0 210 for( coreNum = 0; coreNum < NUM_CORES; coreNum++ )
seanhalle@0 211 { semanticEnv->coreIsDone[coreNum] = FALSE; //use during shutdown
seanhalle@0 212
seanhalle@0 213 for( slotNum = 0; slotNum < NUM_ANIM_SLOTS; ++slotNum )
seanhalle@0 214 { idleSlv = VSs__create_slave_helper( &idle_fn, NULL, semanticEnv, 0);
seanhalle@0 215 idleSlv->coreAnimatedBy = coreNum;
seanhalle@0 216 idleSlv->animSlotAssignedTo =
seanhalle@0 217 _VMSMasterEnv->allAnimSlots[coreNum][slotNum];
seanhalle@0 218 semanticEnv->idleSlv[coreNum][slotNum] = idleSlv;
seanhalle@0 219
seanhalle@0 220 slotTaskSlv = VSs__create_slave_helper( &idle_fn, NULL, semanticEnv, 0);
seanhalle@0 221 slotTaskSlv->coreAnimatedBy = coreNum;
seanhalle@0 222 slotTaskSlv->animSlotAssignedTo =
seanhalle@0 223 _VMSMasterEnv->allAnimSlots[coreNum][slotNum];
seanhalle@0 224
seanhalle@0 225 semData = slotTaskSlv->semanticData;
seanhalle@0 226 semData->needsTaskAssigned = TRUE;
seanhalle@0 227 semData->slaveType = SlotTaskSlv;
seanhalle@0 228 semanticEnv->slotTaskSlvs[coreNum][slotNum] = slotTaskSlv;
seanhalle@0 229 }
seanhalle@0 230 }
seanhalle@0 231
seanhalle@0 232 //create the ready queues, hash tables used for matching and so forth
seanhalle@0 233 semanticEnv->slavesReadyToResumeQ = makeVMSQ();
seanhalle@0 234 semanticEnv->freeExtraTaskSlvQ = makeVMSQ();
seanhalle@0 235 semanticEnv->taskReadyQ = makeVMSQ();
seanhalle@0 236
seanhalle@0 237 semanticEnv->argPtrHashTbl = makeHashTable32( 16, &VMS_int__free );
seanhalle@0 238 semanticEnv->commHashTbl = makeHashTable32( 16, &VMS_int__free );
seanhalle@0 239
seanhalle@0 240 semanticEnv->nextCoreToGetNewSlv = 0;
seanhalle@0 241
seanhalle@0 242
seanhalle@0 243 //TODO: bug -- turn these arrays into dyn arrays to eliminate limit
seanhalle@0 244 //semanticEnv->singletonHasBeenExecutedFlags = makeDynArrayInfo( );
seanhalle@0 245 //semanticEnv->transactionStrucs = makeDynArrayInfo( );
seanhalle@0 246 for( i = 0; i < NUM_STRUCS_IN_SEM_ENV; i++ )
seanhalle@0 247 {
seanhalle@0 248 semanticEnv->fnSingletons[i].endInstrAddr = NULL;
seanhalle@0 249 semanticEnv->fnSingletons[i].hasBeenStarted = FALSE;
seanhalle@0 250 semanticEnv->fnSingletons[i].hasFinished = FALSE;
seanhalle@0 251 semanticEnv->fnSingletons[i].waitQ = makeVMSQ();
seanhalle@0 252 semanticEnv->transactionStrucs[i].waitingVPQ = makeVMSQ();
seanhalle@0 253 }
seanhalle@0 254
seanhalle@0 255 semanticEnv->numLiveExtraTaskSlvs = 0; //must be last
seanhalle@0 256 semanticEnv->numLiveThreadSlvs = 1; //must be last, counts the seed
seanhalle@0 257
seanhalle@0 258 #ifdef HOLISTIC__TURN_ON_OBSERVE_UCC
seanhalle@0 259 semanticEnv->unitList = makeListOfArrays(sizeof(Unit),128);
seanhalle@0 260 semanticEnv->ctlDependenciesList = makeListOfArrays(sizeof(Dependency),128);
seanhalle@0 261 semanticEnv->commDependenciesList = makeListOfArrays(sizeof(Dependency),128);
seanhalle@0 262 semanticEnv->dynDependenciesList = makeListOfArrays(sizeof(Dependency),128);
seanhalle@0 263 semanticEnv->ntonGroupsInfo = makePrivDynArrayOfSize((void***)&(semanticEnv->ntonGroups),8);
seanhalle@0 264
seanhalle@0 265 semanticEnv->hwArcs = makeListOfArrays(sizeof(Dependency),128);
seanhalle@0 266 memset(semanticEnv->last_in_slot,0,sizeof(NUM_CORES * NUM_ANIM_SLOTS * sizeof(Unit)));
seanhalle@0 267 #endif
seanhalle@0 268 }
seanhalle@0 269
seanhalle@0 270
seanhalle@0 271 /*Frees any memory allocated by VSs__init() then calls VMS_int__shutdown
seanhalle@0 272 */
seanhalle@0 273 void
seanhalle@0 274 VSs__cleanup_after_shutdown()
seanhalle@0 275 { VSsSemEnv *semanticEnv;
seanhalle@0 276
seanhalle@0 277 semanticEnv = _VMSMasterEnv->semanticEnv;
seanhalle@0 278
seanhalle@0 279 #ifdef HOLISTIC__TURN_ON_OBSERVE_UCC
seanhalle@0 280 //UCC
seanhalle@0 281 FILE* output;
seanhalle@0 282 int n;
seanhalle@0 283 char filename[255];
seanhalle@0 284 for(n=0;n<255;n++)
seanhalle@0 285 {
seanhalle@0 286 sprintf(filename, "./counters/UCC.%d",n);
seanhalle@0 287 output = fopen(filename,"r");
seanhalle@0 288 if(output)
seanhalle@0 289 {
seanhalle@0 290 fclose(output);
seanhalle@0 291 }else{
seanhalle@0 292 break;
seanhalle@0 293 }
seanhalle@0 294 }
seanhalle@0 295 if(n<255){
seanhalle@0 296 printf("Saving UCC to File: %s ...\n", filename);
seanhalle@0 297 output = fopen(filename,"w+");
seanhalle@0 298 if(output!=NULL){
seanhalle@0 299 set_dependency_file(output);
seanhalle@0 300 //fprintf(output,"digraph Dependencies {\n");
seanhalle@0 301 //set_dot_file(output);
seanhalle@0 302 //FIXME: first line still depends on counters being enabled, replace w/ unit struct!
seanhalle@0 303 //forAllInDynArrayDo(_VMSMasterEnv->counter_history_array_info, &print_dot_node_info );
seanhalle@0 304 forAllInListOfArraysDo(semanticEnv->unitList, &print_unit_to_file);
seanhalle@0 305 forAllInListOfArraysDo( semanticEnv->commDependenciesList, &print_comm_dependency_to_file );
seanhalle@0 306 forAllInListOfArraysDo( semanticEnv->ctlDependenciesList, &print_ctl_dependency_to_file );
seanhalle@0 307 forAllInDynArrayDo(semanticEnv->ntonGroupsInfo,&print_nton_to_file);
seanhalle@0 308 //fprintf(output,"}\n");
seanhalle@0 309 fflush(output);
seanhalle@0 310
seanhalle@0 311 } else
seanhalle@0 312 printf("Opening UCC file failed. Please check that folder \"counters\" exists in run directory and has write permission.\n");
seanhalle@0 313 } else {
seanhalle@0 314 printf("Could not open UCC file, please clean \"counters\" folder. (Must contain less than 255 files.)\n");
seanhalle@0 315 }
seanhalle@0 316 //Loop Graph
seanhalle@0 317 for(n=0;n<255;n++)
seanhalle@0 318 {
seanhalle@0 319 sprintf(filename, "./counters/LoopGraph.%d",n);
seanhalle@0 320 output = fopen(filename,"r");
seanhalle@0 321 if(output)
seanhalle@0 322 {
seanhalle@0 323 fclose(output);
seanhalle@0 324 }else{
seanhalle@0 325 break;
seanhalle@0 326 }
seanhalle@0 327 }
seanhalle@0 328 if(n<255){
seanhalle@0 329 printf("Saving LoopGraph to File: %s ...\n", filename);
seanhalle@0 330 output = fopen(filename,"w+");
seanhalle@0 331 if(output!=NULL){
seanhalle@0 332 set_dependency_file(output);
seanhalle@0 333 //fprintf(output,"digraph Dependencies {\n");
seanhalle@0 334 //set_dot_file(output);
seanhalle@0 335 //FIXME: first line still depends on counters being enabled, replace w/ unit struct!
seanhalle@0 336 //forAllInDynArrayDo(_VMSMasterEnv->counter_history_array_info, &print_dot_node_info );
seanhalle@0 337 forAllInListOfArraysDo( semanticEnv->unitList, &print_unit_to_file );
seanhalle@0 338 forAllInListOfArraysDo( semanticEnv->commDependenciesList, &print_comm_dependency_to_file );
seanhalle@0 339 forAllInListOfArraysDo( semanticEnv->ctlDependenciesList, &print_ctl_dependency_to_file );
seanhalle@0 340 forAllInListOfArraysDo( semanticEnv->dynDependenciesList, &print_dyn_dependency_to_file );
seanhalle@0 341 forAllInListOfArraysDo( semanticEnv->hwArcs, &print_hw_dependency_to_file );
seanhalle@0 342 //fprintf(output,"}\n");
seanhalle@0 343 fflush(output);
seanhalle@0 344
seanhalle@0 345 } else
seanhalle@0 346 printf("Opening LoopGraph file failed. Please check that folder \"counters\" exists in run directory and has write permission.\n");
seanhalle@0 347 } else {
seanhalle@0 348 printf("Could not open LoopGraph file, please clean \"counters\" folder. (Must contain less than 255 files.)\n");
seanhalle@0 349 }
seanhalle@0 350
seanhalle@0 351
seanhalle@0 352 freeListOfArrays(semanticEnv->unitList);
seanhalle@0 353 freeListOfArrays(semanticEnv->commDependenciesList);
seanhalle@0 354 freeListOfArrays(semanticEnv->ctlDependenciesList);
seanhalle@0 355 freeListOfArrays(semanticEnv->dynDependenciesList);
seanhalle@0 356
seanhalle@0 357 #endif
seanhalle@0 358 #ifdef HOLISTIC__TURN_ON_PERF_COUNTERS
seanhalle@0 359 for(n=0;n<255;n++)
seanhalle@0 360 {
seanhalle@0 361 sprintf(filename, "./counters/Counters.%d.csv",n);
seanhalle@0 362 output = fopen(filename,"r");
seanhalle@0 363 if(output)
seanhalle@0 364 {
seanhalle@0 365 fclose(output);
seanhalle@0 366 }else{
seanhalle@0 367 break;
seanhalle@0 368 }
seanhalle@0 369 }
seanhalle@0 370 if(n<255){
seanhalle@0 371 printf("Saving Counter measurements to File: %s ...\n", filename);
seanhalle@0 372 output = fopen(filename,"w+");
seanhalle@0 373 if(output!=NULL){
seanhalle@0 374 set_counter_file(output);
seanhalle@0 375 int i;
seanhalle@0 376 for(i=0;i<NUM_CORES;i++){
seanhalle@0 377 forAllInListOfArraysDo( semanticEnv->counterList[i], &print_counter_events_to_file );
seanhalle@0 378 fflush(output);
seanhalle@0 379 }
seanhalle@0 380
seanhalle@0 381 } else
seanhalle@0 382 printf("Opening UCC file failed. Please check that folder \"counters\" exists in run directory and has write permission.\n");
seanhalle@0 383 } else {
seanhalle@0 384 printf("Could not open UCC file, please clean \"counters\" folder. (Must contain less than 255 files.)\n");
seanhalle@0 385 }
seanhalle@0 386
seanhalle@0 387 #endif
seanhalle@0 388 /* It's all allocated inside VMS's big chunk -- that's about to be freed, so
seanhalle@0 389 * nothing to do here
seanhalle@0 390
seanhalle@0 391
seanhalle@0 392 for( coreIdx = 0; coreIdx < NUM_CORES; coreIdx++ )
seanhalle@0 393 {
seanhalle@0 394 VMS_int__free( semanticEnv->readyVPQs[coreIdx]->startOfData );
seanhalle@0 395 VMS_int__free( semanticEnv->readyVPQs[coreIdx] );
seanhalle@0 396 }
seanhalle@0 397 VMS_int__free( semanticEnv->readyVPQs );
seanhalle@0 398
seanhalle@0 399 freeHashTable( semanticEnv->commHashTbl );
seanhalle@0 400 VMS_int__free( _VMSMasterEnv->semanticEnv );
seanhalle@0 401 */
seanhalle@0 402 VMS_SS__cleanup_at_end_of_shutdown();
seanhalle@0 403 }
seanhalle@0 404
seanhalle@0 405
seanhalle@0 406 //===========================================================================
seanhalle@0 407
seanhalle@0 408 SlaveVP *
seanhalle@0 409 VSs__create_thread( TopLevelFnPtr fnPtr, void *initData,
seanhalle@0 410 SlaveVP *creatingThd )
seanhalle@0 411 { VSsSemReq reqData;
seanhalle@0 412
seanhalle@0 413 //the semantic request data is on the stack and disappears when this
seanhalle@0 414 // call returns -- it's guaranteed to remain in the VP's stack for as
seanhalle@0 415 // long as the VP is suspended.
seanhalle@0 416 reqData.reqType = 0; //know type because in a VMS create req
seanhalle@0 417 reqData.fnPtr = fnPtr;
seanhalle@0 418 reqData.initData = initData;
seanhalle@0 419 reqData.callingSlv = creatingThd;
seanhalle@0 420
seanhalle@0 421 VMS_WL__send_create_slaveVP_req( &reqData, creatingThd );
seanhalle@0 422
seanhalle@0 423 return creatingThd->dataRetFromReq;
seanhalle@0 424 }
seanhalle@0 425
seanhalle@0 426 /*This is always the last thing done in the code animated by a thread VP.
seanhalle@0 427 * Normally, this would be the last line of the thread's top level function.
seanhalle@0 428 * But, if the thread exits from any point, it has to do so by calling
seanhalle@0 429 * this.
seanhalle@0 430 *
seanhalle@0 431 *It simply sends a dissipate request, which handles all the state cleanup.
seanhalle@0 432 */
seanhalle@0 433 void
seanhalle@0 434 VSs__end_thread( SlaveVP *thdToEnd )
seanhalle@0 435 { VSsSemData *semData;
seanhalle@0 436
seanhalle@0 437 VMS_WL__send_dissipate_req( thdToEnd );
seanhalle@0 438 }
seanhalle@0 439
seanhalle@0 440
seanhalle@0 441
seanhalle@0 442 //===========================================================================
seanhalle@0 443
seanhalle@0 444
seanhalle@0 445 //======================= task submit and end ==============================
seanhalle@0 446 /*
seanhalle@0 447 */
seanhalle@0 448 void
seanhalle@0 449 VSs__submit_task( VSsTaskType *taskType, void *args, SlaveVP *animSlv)
seanhalle@0 450 { VSsSemReq reqData;
seanhalle@0 451
seanhalle@0 452 reqData.reqType = submit_task;
seanhalle@0 453
seanhalle@0 454 reqData.taskType = taskType;
seanhalle@0 455 reqData.args = args;
seanhalle@0 456 reqData.callingSlv = animSlv;
seanhalle@0 457
seanhalle@0 458 reqData.taskID = NULL;
seanhalle@0 459
seanhalle@0 460 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 461 }
seanhalle@0 462
seanhalle@0 463 inline int32 *
seanhalle@0 464 VSs__create_taskID_of_size( int32 numInts, SlaveVP *animSlv )
seanhalle@0 465 { int32 *taskID;
seanhalle@0 466
seanhalle@0 467 taskID = VMS_WL__malloc( sizeof(int32) + numInts * sizeof(int32) );
seanhalle@0 468 taskID[0] = numInts;
seanhalle@0 469 return taskID;
seanhalle@0 470 }
seanhalle@0 471
seanhalle@0 472 void
seanhalle@0 473 VSs__submit_task_with_ID( VSsTaskType *taskType, void *args, int32 *taskID,
seanhalle@0 474 SlaveVP *animSlv)
seanhalle@0 475 { VSsSemReq reqData;
seanhalle@0 476
seanhalle@0 477 reqData.reqType = submit_task;
seanhalle@0 478
seanhalle@0 479 reqData.taskType = taskType;
seanhalle@0 480 reqData.args = args;
seanhalle@0 481 reqData.taskID = taskID;
seanhalle@0 482 reqData.callingSlv = animSlv;
seanhalle@0 483
seanhalle@0 484 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 485 }
seanhalle@0 486
seanhalle@0 487
seanhalle@0 488 /*This call is the last to happen in every task. It causes the slave to
seanhalle@0 489 * suspend and get the next task out of the task-queue. Notice there is no
seanhalle@0 490 * assigner here.. only one slave, no slave ReadyQ, and so on..
seanhalle@0 491 *Can either make the assigner take the next task out of the taskQ, or can
seanhalle@0 492 * leave all as it is, and make task-end take the next task.
seanhalle@0 493 *Note: this fits the case in the new VMS for no-context tasks, so will use
seanhalle@0 494 * the built-in taskQ of new VMS, and should be local and much faster.
seanhalle@0 495 *
seanhalle@0 496 *The task-stub is saved in the animSlv, so the request handler will get it
seanhalle@0 497 * from there, along with the task-type which has arg types, and so on..
seanhalle@0 498 *
seanhalle@0 499 * NOTE: if want, don't need to send the animating SlaveVP around..
seanhalle@0 500 * instead, can make a single slave per core, and coreCtrlr looks up the
seanhalle@0 501 * slave from having the core number.
seanhalle@0 502 *
seanhalle@0 503 *But, to stay compatible with all the other VMS languages, leave it in..
seanhalle@0 504 */
seanhalle@0 505 void
seanhalle@0 506 VSs__end_task( SlaveVP *animSlv )
seanhalle@0 507 { VSsSemReq reqData;
seanhalle@0 508
seanhalle@0 509 reqData.reqType = end_task;
seanhalle@0 510 reqData.callingSlv = animSlv;
seanhalle@0 511
seanhalle@0 512 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 513 }
seanhalle@0 514
seanhalle@0 515
seanhalle@0 516 void
seanhalle@0 517 VSs__taskwait(SlaveVP *animSlv)
seanhalle@0 518 {
seanhalle@0 519 VSsSemReq reqData;
seanhalle@0 520
seanhalle@0 521 reqData.reqType = taskwait;
seanhalle@0 522 reqData.callingSlv = animSlv;
seanhalle@0 523
seanhalle@0 524 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 525 }
seanhalle@0 526
seanhalle@0 527
seanhalle@0 528
seanhalle@0 529 //========================== send and receive ============================
seanhalle@0 530 //
seanhalle@0 531
seanhalle@0 532 inline int32 *
seanhalle@0 533 VSs__give_self_taskID( SlaveVP *animSlv )
seanhalle@0 534 {
seanhalle@0 535 return ((VSsSemData*)animSlv->semanticData)->taskStub->taskID;
seanhalle@0 536 }
seanhalle@0 537
seanhalle@0 538 //================================ send ===================================
seanhalle@0 539
seanhalle@0 540 void
seanhalle@0 541 VSs__send_of_type_to( void *msg, const int32 type, int32 *receiverID,
seanhalle@0 542 SlaveVP *senderSlv )
seanhalle@0 543 { VSsSemReq reqData;
seanhalle@0 544
seanhalle@0 545 reqData.reqType = send_type_to;
seanhalle@0 546
seanhalle@0 547 reqData.msg = msg;
seanhalle@0 548 reqData.msgType = type;
seanhalle@0 549 reqData.receiverID = receiverID;
seanhalle@0 550 reqData.senderSlv = senderSlv;
seanhalle@0 551
seanhalle@0 552 reqData.nextReqInHashEntry = NULL;
seanhalle@0 553
seanhalle@0 554 VMS_WL__send_sem_request( &reqData, senderSlv );
seanhalle@0 555
seanhalle@0 556 //When come back from suspend, no longer own data reachable from msg
seanhalle@0 557 }
seanhalle@0 558
seanhalle@0 559 void
seanhalle@0 560 VSs__send_from_to( void *msg, int32 *senderID, int32 *receiverID, SlaveVP *senderSlv )
seanhalle@0 561 { VSsSemReq reqData;
seanhalle@0 562
seanhalle@0 563 reqData.reqType = send_from_to;
seanhalle@0 564
seanhalle@0 565 reqData.msg = msg;
seanhalle@0 566 reqData.senderID = senderID;
seanhalle@0 567 reqData.receiverID = receiverID;
seanhalle@0 568 reqData.senderSlv = senderSlv;
seanhalle@0 569
seanhalle@0 570 reqData.nextReqInHashEntry = NULL;
seanhalle@0 571
seanhalle@0 572 VMS_WL__send_sem_request( &reqData, senderSlv );
seanhalle@0 573 }
seanhalle@0 574
seanhalle@0 575
seanhalle@0 576 //================================ receive ================================
seanhalle@0 577
seanhalle@0 578 /*The "type" version of send and receive creates a many-to-one relationship.
seanhalle@0 579 * The sender is anonymous, and many sends can stack up, waiting to be
seanhalle@0 580 * received. The same receiver can also have send from-to's
seanhalle@0 581 * waiting for it, and those will be kept separate from the "type"
seanhalle@0 582 * messages.
seanhalle@0 583 */
seanhalle@0 584 void *
seanhalle@0 585 VSs__receive_type_to( const int32 type, int32* receiverID, SlaveVP *receiverSlv )
seanhalle@0 586 { DEBUG__printf1(dbgRqstHdlr,"WL: receive type to %d",receiverID[1] );
seanhalle@0 587 VSsSemReq reqData;
seanhalle@0 588
seanhalle@0 589 reqData.reqType = receive_type_to;
seanhalle@0 590
seanhalle@0 591 reqData.msgType = type;
seanhalle@0 592 reqData.receiverID = receiverID;
seanhalle@0 593 reqData.receiverSlv = receiverSlv;
seanhalle@0 594
seanhalle@0 595 reqData.nextReqInHashEntry = NULL;
seanhalle@0 596
seanhalle@0 597 VMS_WL__send_sem_request( &reqData, receiverSlv );
seanhalle@0 598
seanhalle@0 599 return receiverSlv->dataRetFromReq;
seanhalle@0 600 }
seanhalle@0 601
seanhalle@0 602
seanhalle@0 603
seanhalle@0 604 /*Call this at the point a receiving task wants in-coming data.
seanhalle@0 605 * Use this from-to form when know senderID -- it makes a direct channel
seanhalle@0 606 * between sender and receiver.
seanhalle@0 607 */
seanhalle@0 608 void *
seanhalle@0 609 VSs__receive_from_to( int32 *senderID, int32 *receiverID, SlaveVP *receiverSlv )
seanhalle@0 610 {
seanhalle@0 611 VSsSemReq reqData;
seanhalle@0 612
seanhalle@0 613 reqData.reqType = receive_from_to;
seanhalle@0 614
seanhalle@0 615 reqData.senderID = senderID;
seanhalle@0 616 reqData.receiverID = receiverID;
seanhalle@0 617 reqData.receiverSlv = receiverSlv;
seanhalle@0 618
seanhalle@0 619 reqData.nextReqInHashEntry = NULL;
seanhalle@0 620 DEBUG__printf2(dbgRqstHdlr,"WL: receive from %d to: %d", reqData.senderID[1], reqData.receiverID[1]);
seanhalle@0 621
seanhalle@0 622 VMS_WL__send_sem_request( &reqData, receiverSlv );
seanhalle@0 623
seanhalle@0 624 return receiverSlv->dataRetFromReq;
seanhalle@0 625 }
seanhalle@0 626
seanhalle@0 627
seanhalle@0 628
seanhalle@0 629
seanhalle@0 630 //==========================================================================
seanhalle@0 631 //
seanhalle@0 632 /*A function singleton is a function whose body executes exactly once, on a
seanhalle@0 633 * single core, no matter how many times the fuction is called and no
seanhalle@0 634 * matter how many cores or the timing of cores calling it.
seanhalle@0 635 *
seanhalle@0 636 *A data singleton is a ticket attached to data. That ticket can be used
seanhalle@0 637 * to get the data through the function exactly once, no matter how many
seanhalle@0 638 * times the data is given to the function, and no matter the timing of
seanhalle@0 639 * trying to get the data through from different cores.
seanhalle@0 640 */
seanhalle@0 641
seanhalle@0 642 /*asm function declarations*/
seanhalle@0 643 void asm_save_ret_to_singleton(VSsSingleton *singletonPtrAddr);
seanhalle@0 644 void asm_write_ret_from_singleton(VSsSingleton *singletonPtrAddr);
seanhalle@0 645
seanhalle@0 646 /*Fn singleton uses ID as index into array of singleton structs held in the
seanhalle@0 647 * semantic environment.
seanhalle@0 648 */
seanhalle@0 649 void
seanhalle@0 650 VSs__start_fn_singleton( int32 singletonID, SlaveVP *animSlv )
seanhalle@0 651 {
seanhalle@0 652 VSsSemReq reqData;
seanhalle@0 653
seanhalle@0 654 //
seanhalle@0 655 reqData.reqType = singleton_fn_start;
seanhalle@0 656 reqData.singletonID = singletonID;
seanhalle@0 657
seanhalle@0 658 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 659 if( animSlv->dataRetFromReq ) //will be 0 or addr of label in end singleton
seanhalle@0 660 {
seanhalle@0 661 VSsSemEnv *semEnv = VMS_int__give_sem_env_for( animSlv );
seanhalle@0 662 asm_write_ret_from_singleton(&(semEnv->fnSingletons[ singletonID]));
seanhalle@0 663 }
seanhalle@0 664 }
seanhalle@0 665
seanhalle@0 666 /*Data singleton hands addr of loc holding a pointer to a singleton struct.
seanhalle@0 667 * The start_data_singleton makes the structure and puts its addr into the
seanhalle@0 668 * location.
seanhalle@0 669 */
seanhalle@0 670 void
seanhalle@0 671 VSs__start_data_singleton( VSsSingleton **singletonAddr, SlaveVP *animSlv )
seanhalle@0 672 {
seanhalle@0 673 VSsSemReq reqData;
seanhalle@0 674
seanhalle@0 675 if( *singletonAddr && (*singletonAddr)->hasFinished )
seanhalle@0 676 goto JmpToEndSingleton;
seanhalle@0 677
seanhalle@0 678 reqData.reqType = singleton_data_start;
seanhalle@0 679 reqData.singletonPtrAddr = singletonAddr;
seanhalle@0 680
seanhalle@0 681 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 682 if( animSlv->dataRetFromReq ) //either 0 or end singleton's return addr
seanhalle@0 683 { //Assembly code changes the return addr on the stack to the one
seanhalle@0 684 // saved into the singleton by the end-singleton-fn
seanhalle@0 685 //The return addr is at 0x4(%%ebp)
seanhalle@0 686 JmpToEndSingleton:
seanhalle@0 687 asm_write_ret_from_singleton(*singletonAddr);
seanhalle@0 688 }
seanhalle@0 689 //now, simply return
seanhalle@0 690 //will exit either from the start singleton call or the end-singleton call
seanhalle@0 691 }
seanhalle@0 692
seanhalle@0 693 /*Uses ID as index into array of flags. If flag already set, resumes from
seanhalle@0 694 * end-label. Else, sets flag and resumes normally.
seanhalle@0 695 *
seanhalle@0 696 *Note, this call cannot be inlined because the instr addr at the label
seanhalle@0 697 * inside is shared by all invocations of a given singleton ID.
seanhalle@0 698 */
seanhalle@0 699 void
seanhalle@0 700 VSs__end_fn_singleton( int32 singletonID, SlaveVP *animSlv )
seanhalle@0 701 {
seanhalle@0 702 VSsSemReq reqData;
seanhalle@0 703
seanhalle@0 704 //don't need this addr until after at least one singleton has reached
seanhalle@0 705 // this function
seanhalle@0 706 VSsSemEnv *semEnv = VMS_int__give_sem_env_for( animSlv );
seanhalle@0 707 asm_write_ret_from_singleton(&(semEnv->fnSingletons[ singletonID]));
seanhalle@0 708
seanhalle@0 709 reqData.reqType = singleton_fn_end;
seanhalle@0 710 reqData.singletonID = singletonID;
seanhalle@0 711
seanhalle@0 712 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 713
seanhalle@0 714 EndSingletonInstrAddr:
seanhalle@0 715 return;
seanhalle@0 716 }
seanhalle@0 717
seanhalle@0 718 void
seanhalle@0 719 VSs__end_data_singleton( VSsSingleton **singletonPtrAddr, SlaveVP *animSlv )
seanhalle@0 720 {
seanhalle@0 721 VSsSemReq reqData;
seanhalle@0 722
seanhalle@0 723 //don't need this addr until after singleton struct has reached
seanhalle@0 724 // this function for first time
seanhalle@0 725 //do assembly that saves the return addr of this fn call into the
seanhalle@0 726 // data singleton -- that data-singleton can only be given to exactly
seanhalle@0 727 // one instance in the code of this function. However, can use this
seanhalle@0 728 // function in different places for different data-singletons.
seanhalle@0 729 // (*(singletonAddr))->endInstrAddr = &&EndDataSingletonInstrAddr;
seanhalle@0 730
seanhalle@0 731
seanhalle@0 732 asm_save_ret_to_singleton(*singletonPtrAddr);
seanhalle@0 733
seanhalle@0 734 reqData.reqType = singleton_data_end;
seanhalle@0 735 reqData.singletonPtrAddr = singletonPtrAddr;
seanhalle@0 736
seanhalle@0 737 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 738 }
seanhalle@0 739
seanhalle@0 740 /*This executes the function in the masterVP, so it executes in isolation
seanhalle@0 741 * from any other copies -- only one copy of the function can ever execute
seanhalle@0 742 * at a time.
seanhalle@0 743 *
seanhalle@0 744 *It suspends to the master, and the request handler takes the function
seanhalle@0 745 * pointer out of the request and calls it, then resumes the VP.
seanhalle@0 746 *Only very short functions should be called this way -- for longer-running
seanhalle@0 747 * isolation, use transaction-start and transaction-end, which run the code
seanhalle@0 748 * between as work-code.
seanhalle@0 749 */
seanhalle@0 750 void
seanhalle@0 751 VSs__animate_short_fn_in_isolation( PtrToAtomicFn ptrToFnToExecInMaster,
seanhalle@0 752 void *data, SlaveVP *animSlv )
seanhalle@0 753 {
seanhalle@0 754 VSsSemReq reqData;
seanhalle@0 755
seanhalle@0 756 //
seanhalle@0 757 reqData.reqType = atomic;
seanhalle@0 758 reqData.fnToExecInMaster = ptrToFnToExecInMaster;
seanhalle@0 759 reqData.dataForFn = data;
seanhalle@0 760
seanhalle@0 761 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 762 }
seanhalle@0 763
seanhalle@0 764
seanhalle@0 765 /*This suspends to the master.
seanhalle@0 766 *First, it looks at the VP's data, to see the highest transactionID that VP
seanhalle@0 767 * already has entered. If the current ID is not larger, it throws an
seanhalle@0 768 * exception stating a bug in the code. Otherwise it puts the current ID
seanhalle@0 769 * there, and adds the ID to a linked list of IDs entered -- the list is
seanhalle@0 770 * used to check that exits are properly ordered.
seanhalle@0 771 *Next it is uses transactionID as index into an array of transaction
seanhalle@0 772 * structures.
seanhalle@0 773 *If the "VP_currently_executing" field is non-null, then put requesting VP
seanhalle@0 774 * into queue in the struct. (At some point a holder will request
seanhalle@0 775 * end-transaction, which will take this VP from the queue and resume it.)
seanhalle@0 776 *If NULL, then write requesting into the field and resume.
seanhalle@0 777 */
seanhalle@0 778 void
seanhalle@0 779 VSs__start_transaction( int32 transactionID, SlaveVP *animSlv )
seanhalle@0 780 {
seanhalle@0 781 VSsSemReq reqData;
seanhalle@0 782
seanhalle@0 783 //
seanhalle@0 784 reqData.callingSlv = animSlv;
seanhalle@0 785 reqData.reqType = trans_start;
seanhalle@0 786 reqData.transID = transactionID;
seanhalle@0 787
seanhalle@0 788 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 789 }
seanhalle@0 790
seanhalle@0 791 /*This suspends to the master, then uses transactionID as index into an
seanhalle@0 792 * array of transaction structures.
seanhalle@0 793 *It looks at VP_currently_executing to be sure it's same as requesting VP.
seanhalle@0 794 * If different, throws an exception, stating there's a bug in the code.
seanhalle@0 795 *Next it looks at the queue in the structure.
seanhalle@0 796 *If it's empty, it sets VP_currently_executing field to NULL and resumes.
seanhalle@0 797 *If something in, gets it, sets VP_currently_executing to that VP, then
seanhalle@0 798 * resumes both.
seanhalle@0 799 */
seanhalle@0 800 void
seanhalle@0 801 VSs__end_transaction( int32 transactionID, SlaveVP *animSlv )
seanhalle@0 802 {
seanhalle@0 803 VSsSemReq reqData;
seanhalle@0 804
seanhalle@0 805 //
seanhalle@0 806 reqData.callingSlv = animSlv;
seanhalle@0 807 reqData.reqType = trans_end;
seanhalle@0 808 reqData.transID = transactionID;
seanhalle@0 809
seanhalle@0 810 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 811 }
seanhalle@0 812
seanhalle@0 813 //======================== Internal ==================================
seanhalle@0 814 /*
seanhalle@0 815 */
seanhalle@0 816 SlaveVP *
seanhalle@0 817 VSs__create_slave_with( TopLevelFnPtr fnPtr, void *initData,
seanhalle@0 818 SlaveVP *creatingSlv )
seanhalle@0 819 { VSsSemReq reqData;
seanhalle@0 820
seanhalle@0 821 //the semantic request data is on the stack and disappears when this
seanhalle@0 822 // call returns -- it's guaranteed to remain in the VP's stack for as
seanhalle@0 823 // long as the VP is suspended.
seanhalle@0 824 reqData.reqType = 0; //know type because in a VMS create req
seanhalle@0 825 reqData.coreToAssignOnto = -1; //means round-robin assign
seanhalle@0 826 reqData.fnPtr = fnPtr;
seanhalle@0 827 reqData.initData = initData;
seanhalle@0 828 reqData.callingSlv = creatingSlv;
seanhalle@0 829
seanhalle@0 830 VMS_WL__send_create_slaveVP_req( &reqData, creatingSlv );
seanhalle@0 831
seanhalle@0 832 return creatingSlv->dataRetFromReq;
seanhalle@0 833 }
seanhalle@0 834
seanhalle@0 835 SlaveVP *
seanhalle@0 836 VSs__create_slave_with_affinity( TopLevelFnPtr fnPtr, void *initData,
seanhalle@0 837 SlaveVP *creatingSlv, int32 coreToAssignOnto )
seanhalle@0 838 { VSsSemReq reqData;
seanhalle@0 839
seanhalle@0 840 //the semantic request data is on the stack and disappears when this
seanhalle@0 841 // call returns -- it's guaranteed to remain in the VP's stack for as
seanhalle@0 842 // long as the VP is suspended.
seanhalle@0 843 reqData.reqType = create_slave_w_aff; //not used, May 2012
seanhalle@0 844 reqData.coreToAssignOnto = coreToAssignOnto;
seanhalle@0 845 reqData.fnPtr = fnPtr;
seanhalle@0 846 reqData.initData = initData;
seanhalle@0 847 reqData.callingSlv = creatingSlv;
seanhalle@0 848
seanhalle@0 849 VMS_WL__send_create_slaveVP_req( &reqData, creatingSlv );
seanhalle@0 850
seanhalle@0 851 return creatingSlv->dataRetFromReq;
seanhalle@0 852 }
seanhalle@0 853