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annotate VSs.c @ 11:ed268fc7376a

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minor fixes
author Nina Engelhardt <nengel@mailbox.tu-berlin.de>
date Wed, 15 Aug 2012 17:05:02 +0200
parents 832bc715fbf2
children f56e3beac86b
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@6 76 { VSsSemEnv *semEnv;
seanhalle@6 77 SlaveVP *seedSlv;
seanhalle@6 78 VSsSemData *semData;
seanhalle@8 79 VSsTaskStub *threadTaskStub, *parentTaskStub;
seanhalle@0 80
seanhalle@2 81 VSs__init(); //normal multi-thd
seanhalle@0 82
seanhalle@0 83 semEnv = _VMSMasterEnv->semanticEnv;
seanhalle@0 84
seanhalle@2 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@3 87 seedSlv = VSs__create_slave_helper( fnPtr, initData,
seanhalle@6 88 semEnv, semEnv->nextCoreToGetNewSlv++ );
seanhalle@3 89
seanhalle@8 90 //seed slave is a thread slave, so make a thread's task stub for it
seanhalle@8 91 // and then make another to stand for the seed's parent task. Make
seanhalle@8 92 // the parent be already ended, and have one child (the seed). This
seanhalle@8 93 // will make the dissipate handler do the right thing when the seed
seanhalle@8 94 // is dissipated.
seanhalle@8 95 threadTaskStub = create_thread_task_stub( initData );
seanhalle@8 96 parentTaskStub = create_thread_task_stub( NULL );
seanhalle@8 97 parentTaskStub->isEnded = TRUE;
seanhalle@8 98 parentTaskStub->numLiveChildThreads = 1; //so dissipate works for seed
nengel@11 99 threadTaskStub->parentTaskStub = parentTaskStub;
seanhalle@6 100
seanhalle@6 101 semData = (VSsSemData *)seedSlv->semanticData;
seanhalle@8 102 //seedVP is a thread, so has a permanent task
seanhalle@6 103 semData->needsTaskAssigned = FALSE;
seanhalle@8 104 semData->taskStub = threadTaskStub;
seanhalle@0 105
seanhalle@6 106 resume_slaveVP( seedSlv, semEnv ); //returns right away, just queues Slv
seanhalle@0 107
seanhalle@0 108 VMS_SS__start_the_work_then_wait_until_done(); //normal multi-thd
seanhalle@0 109
seanhalle@2 110 VSs__cleanup_after_shutdown();
seanhalle@0 111 }
seanhalle@0 112
seanhalle@0 113
seanhalle@0 114 int32
seanhalle@2 115 VSs__giveMinWorkUnitCycles( float32 percentOverhead )
seanhalle@0 116 {
seanhalle@0 117 return MIN_WORK_UNIT_CYCLES;
seanhalle@0 118 }
seanhalle@0 119
seanhalle@0 120 int32
seanhalle@2 121 VSs__giveIdealNumWorkUnits()
seanhalle@0 122 {
seanhalle@0 123 return NUM_ANIM_SLOTS * NUM_CORES;
seanhalle@0 124 }
seanhalle@0 125
seanhalle@0 126 int32
seanhalle@2 127 VSs__give_number_of_cores_to_schedule_onto()
seanhalle@0 128 {
seanhalle@0 129 return NUM_CORES;
seanhalle@0 130 }
seanhalle@0 131
seanhalle@0 132 /*For now, use TSC -- later, make these two macros with assembly that first
seanhalle@0 133 * saves jump point, and second jumps back several times to get reliable time
seanhalle@0 134 */
seanhalle@0 135 void
seanhalle@2 136 VSs__start_primitive()
seanhalle@2 137 { saveLowTimeStampCountInto( ((VSsSemEnv *)(_VMSMasterEnv->semanticEnv))->
seanhalle@0 138 primitiveStartTime );
seanhalle@0 139 }
seanhalle@0 140
seanhalle@0 141 /*Just quick and dirty for now -- make reliable later
seanhalle@0 142 * will want this to jump back several times -- to be sure cache is warm
seanhalle@0 143 * because don't want comm time included in calc-time measurement -- and
seanhalle@0 144 * also to throw out any "weird" values due to OS interrupt or TSC rollover
seanhalle@0 145 */
seanhalle@0 146 int32
seanhalle@2 147 VSs__end_primitive_and_give_cycles()
seanhalle@0 148 { int32 endTime, startTime;
seanhalle@0 149 //TODO: fix by repeating time-measurement
seanhalle@0 150 saveLowTimeStampCountInto( endTime );
seanhalle@2 151 startTime =((VSsSemEnv*)(_VMSMasterEnv->semanticEnv))->primitiveStartTime;
seanhalle@0 152 return (endTime - startTime);
seanhalle@0 153 }
seanhalle@0 154
seanhalle@0 155 //===========================================================================
seanhalle@0 156
seanhalle@2 157 /*Initializes all the data-structures for a VSs system -- but doesn't
seanhalle@0 158 * start it running yet!
seanhalle@0 159 *
seanhalle@0 160 *This runs in the main thread -- before VMS starts up
seanhalle@0 161 *
seanhalle@0 162 *This sets up the semantic layer over the VMS system
seanhalle@0 163 *
seanhalle@0 164 *First, calls VMS_Setup, then creates own environment, making it ready
seanhalle@0 165 * for creating the seed processor and then starting the work.
seanhalle@0 166 */
seanhalle@0 167 void
seanhalle@2 168 VSs__init()
seanhalle@0 169 {
seanhalle@0 170 VMS_SS__init();
seanhalle@0 171 //masterEnv, a global var, now is partially set up by init_VMS
seanhalle@0 172 // after this, have VMS_int__malloc and VMS_int__free available
seanhalle@0 173
seanhalle@2 174 VSs__init_Helper();
seanhalle@0 175 }
seanhalle@0 176
seanhalle@0 177
seanhalle@0 178 void idle_fn(void* data, SlaveVP *animatingSlv){
seanhalle@0 179 while(1){
seanhalle@0 180 VMS_int__suspend_slaveVP_and_send_req(animatingSlv);
seanhalle@0 181 }
seanhalle@0 182 }
seanhalle@0 183
seanhalle@0 184 void
seanhalle@2 185 VSs__init_Helper()
seanhalle@2 186 { VSsSemEnv *semanticEnv;
seanhalle@6 187 int32 i, coreNum, slotNum;
seanhalle@0 188
seanhalle@0 189 //Hook up the semantic layer's plug-ins to the Master virt procr
seanhalle@2 190 _VMSMasterEnv->requestHandler = &VSs__Request_Handler;
seanhalle@2 191 _VMSMasterEnv->slaveAssigner = &VSs__assign_slaveVP_to_slot;
seanhalle@0 192 #ifdef HOLISTIC__TURN_ON_PERF_COUNTERS
seanhalle@2 193 _VMSMasterEnv->counterHandler = &VSs__counter_handler;
seanhalle@0 194 #endif
seanhalle@0 195
seanhalle@0 196 //create the semantic layer's environment (all its data) and add to
seanhalle@0 197 // the master environment
seanhalle@2 198 semanticEnv = VMS_int__malloc( sizeof( VSsSemEnv ) );
seanhalle@0 199 _VMSMasterEnv->semanticEnv = semanticEnv;
seanhalle@0 200
seanhalle@0 201 #ifdef HOLISTIC__TURN_ON_PERF_COUNTERS
seanhalle@2 202 VSs__init_counter_data_structs();
seanhalle@0 203 #endif
seanhalle@3 204
seanhalle@0 205 semanticEnv->shutdownInitiated = FALSE;
seanhalle@3 206 semanticEnv->coreIsDone = VMS_int__malloc( NUM_CORES * sizeof( bool32 ) );
seanhalle@6 207 //For each animation slot, there is an idle slave, and an initial
seanhalle@6 208 // slave assigned as the current-task-slave. Create them here.
seanhalle@6 209 SlaveVP *idleSlv, *currTaskSlv;
seanhalle@6 210 for( coreNum = 0; coreNum < NUM_CORES; coreNum++ )
seanhalle@6 211 { semanticEnv->coreIsDone[coreNum] = FALSE; //use during shutdown
seanhalle@6 212
seanhalle@6 213 for( slotNum = 0; slotNum < NUM_ANIM_SLOTS; ++slotNum )
seanhalle@6 214 { idleSlv = VMS_int__create_slaveVP(&idle_fn,NULL);
seanhalle@6 215 idleSlv->coreAnimatedBy = coreNum;
seanhalle@9 216 idleSlv->animSlotAssignedTo =
seanhalle@9 217 _VMSMasterEnv->allAnimSlots[coreNum][slotNum];
seanhalle@6 218 semanticEnv->idleSlv[coreNum][slotNum] = idleSlv;
seanhalle@6 219
seanhalle@6 220 currTaskSlv = VMS_int__create_slaveVP( &idle_fn, NULL );
seanhalle@6 221 currTaskSlv->coreAnimatedBy = coreNum;
seanhalle@9 222 currTaskSlv->animSlotAssignedTo =
seanhalle@9 223 _VMSMasterEnv->allAnimSlots[coreNum][slotNum];
seanhalle@6 224 semanticEnv->currTaskSlvs[coreNum][slotNum] = currTaskSlv;
seanhalle@0 225 }
seanhalle@3 226 }
seanhalle@0 227
seanhalle@6 228 //create the ready queues, hash tables used for matching and so forth
seanhalle@6 229 semanticEnv->slavesReadyToResumeQ = makeVMSQ();
seanhalle@9 230 semanticEnv->freeExtraTaskSlvQ = makeVMSQ();
seanhalle@6 231 semanticEnv->taskReadyQ = makeVMSQ();
seanhalle@0 232
seanhalle@3 233 semanticEnv->argPtrHashTbl = makeHashTable32( 16, &VMS_int__free );
seanhalle@4 234 semanticEnv->commHashTbl = makeHashTable32( 16, &VMS_int__free );
seanhalle@6 235
seanhalle@6 236 semanticEnv->nextCoreToGetNewSlv = 0;
seanhalle@6 237
seanhalle@0 238
seanhalle@0 239 //TODO: bug -- turn these arrays into dyn arrays to eliminate limit
seanhalle@0 240 //semanticEnv->singletonHasBeenExecutedFlags = makeDynArrayInfo( );
seanhalle@0 241 //semanticEnv->transactionStrucs = makeDynArrayInfo( );
seanhalle@0 242 for( i = 0; i < NUM_STRUCS_IN_SEM_ENV; i++ )
seanhalle@0 243 {
seanhalle@0 244 semanticEnv->fnSingletons[i].endInstrAddr = NULL;
seanhalle@0 245 semanticEnv->fnSingletons[i].hasBeenStarted = FALSE;
seanhalle@0 246 semanticEnv->fnSingletons[i].hasFinished = FALSE;
seanhalle@0 247 semanticEnv->fnSingletons[i].waitQ = makeVMSQ();
seanhalle@0 248 semanticEnv->transactionStrucs[i].waitingVPQ = makeVMSQ();
seanhalle@0 249 }
seanhalle@6 250
seanhalle@8 251 semanticEnv->numLiveExtraTaskSlvs = 0; //must be last
seanhalle@8 252 semanticEnv->numLiveThreadSlvs = 1; //must be last, count the seed
seanhalle@6 253
seanhalle@6 254 #ifdef HOLISTIC__TURN_ON_OBSERVE_UCC
seanhalle@6 255 semanticEnv->unitList = makeListOfArrays(sizeof(Unit),128);
seanhalle@6 256 semanticEnv->ctlDependenciesList = makeListOfArrays(sizeof(Dependency),128);
seanhalle@6 257 semanticEnv->commDependenciesList = makeListOfArrays(sizeof(Dependency),128);
seanhalle@6 258 semanticEnv->dynDependenciesList = makeListOfArrays(sizeof(Dependency),128);
seanhalle@6 259 semanticEnv->ntonGroupsInfo = makePrivDynArrayOfSize((void***)&(semanticEnv->ntonGroups),8);
seanhalle@6 260
seanhalle@6 261 semanticEnv->hwArcs = makeListOfArrays(sizeof(Dependency),128);
seanhalle@6 262 memset(semanticEnv->last_in_slot,0,sizeof(NUM_CORES * NUM_ANIM_SLOTS * sizeof(Unit)));
seanhalle@6 263 #endif
seanhalle@0 264 }
seanhalle@0 265
seanhalle@0 266
seanhalle@2 267 /*Frees any memory allocated by VSs__init() then calls VMS_int__shutdown
seanhalle@0 268 */
seanhalle@0 269 void
seanhalle@2 270 VSs__cleanup_after_shutdown()
seanhalle@2 271 { VSsSemEnv *semanticEnv;
seanhalle@0 272
seanhalle@0 273 semanticEnv = _VMSMasterEnv->semanticEnv;
seanhalle@0 274
seanhalle@0 275 #ifdef HOLISTIC__TURN_ON_OBSERVE_UCC
seanhalle@0 276 //UCC
seanhalle@0 277 FILE* output;
seanhalle@0 278 int n;
seanhalle@0 279 char filename[255];
seanhalle@0 280 for(n=0;n<255;n++)
seanhalle@0 281 {
seanhalle@0 282 sprintf(filename, "./counters/UCC.%d",n);
seanhalle@0 283 output = fopen(filename,"r");
seanhalle@0 284 if(output)
seanhalle@0 285 {
seanhalle@0 286 fclose(output);
seanhalle@0 287 }else{
seanhalle@0 288 break;
seanhalle@0 289 }
seanhalle@0 290 }
seanhalle@0 291 if(n<255){
seanhalle@0 292 printf("Saving UCC to File: %s ...\n", filename);
seanhalle@0 293 output = fopen(filename,"w+");
seanhalle@0 294 if(output!=NULL){
seanhalle@0 295 set_dependency_file(output);
seanhalle@0 296 //fprintf(output,"digraph Dependencies {\n");
seanhalle@0 297 //set_dot_file(output);
seanhalle@0 298 //FIXME: first line still depends on counters being enabled, replace w/ unit struct!
seanhalle@0 299 //forAllInDynArrayDo(_VMSMasterEnv->counter_history_array_info, &print_dot_node_info );
seanhalle@0 300 forAllInListOfArraysDo(semanticEnv->unitList, &print_unit_to_file);
seanhalle@0 301 forAllInListOfArraysDo( semanticEnv->commDependenciesList, &print_comm_dependency_to_file );
seanhalle@0 302 forAllInListOfArraysDo( semanticEnv->ctlDependenciesList, &print_ctl_dependency_to_file );
seanhalle@0 303 forAllInDynArrayDo(semanticEnv->ntonGroupsInfo,&print_nton_to_file);
seanhalle@0 304 //fprintf(output,"}\n");
seanhalle@0 305 fflush(output);
seanhalle@0 306
seanhalle@0 307 } else
seanhalle@0 308 printf("Opening UCC file failed. Please check that folder \"counters\" exists in run directory and has write permission.\n");
seanhalle@0 309 } else {
seanhalle@0 310 printf("Could not open UCC file, please clean \"counters\" folder. (Must contain less than 255 files.)\n");
seanhalle@0 311 }
seanhalle@0 312 //Loop Graph
seanhalle@0 313 for(n=0;n<255;n++)
seanhalle@0 314 {
seanhalle@0 315 sprintf(filename, "./counters/LoopGraph.%d",n);
seanhalle@0 316 output = fopen(filename,"r");
seanhalle@0 317 if(output)
seanhalle@0 318 {
seanhalle@0 319 fclose(output);
seanhalle@0 320 }else{
seanhalle@0 321 break;
seanhalle@0 322 }
seanhalle@0 323 }
seanhalle@0 324 if(n<255){
seanhalle@0 325 printf("Saving LoopGraph to File: %s ...\n", filename);
seanhalle@0 326 output = fopen(filename,"w+");
seanhalle@0 327 if(output!=NULL){
seanhalle@0 328 set_dependency_file(output);
seanhalle@0 329 //fprintf(output,"digraph Dependencies {\n");
seanhalle@0 330 //set_dot_file(output);
seanhalle@0 331 //FIXME: first line still depends on counters being enabled, replace w/ unit struct!
seanhalle@0 332 //forAllInDynArrayDo(_VMSMasterEnv->counter_history_array_info, &print_dot_node_info );
seanhalle@0 333 forAllInListOfArraysDo( semanticEnv->unitList, &print_unit_to_file );
seanhalle@0 334 forAllInListOfArraysDo( semanticEnv->commDependenciesList, &print_comm_dependency_to_file );
seanhalle@0 335 forAllInListOfArraysDo( semanticEnv->ctlDependenciesList, &print_ctl_dependency_to_file );
seanhalle@0 336 forAllInListOfArraysDo( semanticEnv->dynDependenciesList, &print_dyn_dependency_to_file );
seanhalle@0 337 forAllInListOfArraysDo( semanticEnv->hwArcs, &print_hw_dependency_to_file );
seanhalle@0 338 //fprintf(output,"}\n");
seanhalle@0 339 fflush(output);
seanhalle@0 340
seanhalle@0 341 } else
seanhalle@0 342 printf("Opening LoopGraph file failed. Please check that folder \"counters\" exists in run directory and has write permission.\n");
seanhalle@0 343 } else {
seanhalle@0 344 printf("Could not open LoopGraph file, please clean \"counters\" folder. (Must contain less than 255 files.)\n");
seanhalle@0 345 }
seanhalle@0 346
seanhalle@0 347
seanhalle@0 348 freeListOfArrays(semanticEnv->unitList);
seanhalle@0 349 freeListOfArrays(semanticEnv->commDependenciesList);
seanhalle@0 350 freeListOfArrays(semanticEnv->ctlDependenciesList);
seanhalle@0 351 freeListOfArrays(semanticEnv->dynDependenciesList);
seanhalle@0 352
seanhalle@0 353 #endif
seanhalle@0 354 #ifdef HOLISTIC__TURN_ON_PERF_COUNTERS
seanhalle@0 355 for(n=0;n<255;n++)
seanhalle@0 356 {
seanhalle@0 357 sprintf(filename, "./counters/Counters.%d.csv",n);
seanhalle@0 358 output = fopen(filename,"r");
seanhalle@0 359 if(output)
seanhalle@0 360 {
seanhalle@0 361 fclose(output);
seanhalle@0 362 }else{
seanhalle@0 363 break;
seanhalle@0 364 }
seanhalle@0 365 }
seanhalle@0 366 if(n<255){
seanhalle@0 367 printf("Saving Counter measurements to File: %s ...\n", filename);
seanhalle@0 368 output = fopen(filename,"w+");
seanhalle@0 369 if(output!=NULL){
seanhalle@0 370 set_counter_file(output);
seanhalle@0 371 int i;
seanhalle@0 372 for(i=0;i<NUM_CORES;i++){
seanhalle@0 373 forAllInListOfArraysDo( semanticEnv->counterList[i], &print_counter_events_to_file );
seanhalle@0 374 fflush(output);
seanhalle@0 375 }
seanhalle@0 376
seanhalle@0 377 } else
seanhalle@0 378 printf("Opening UCC file failed. Please check that folder \"counters\" exists in run directory and has write permission.\n");
seanhalle@0 379 } else {
seanhalle@0 380 printf("Could not open UCC file, please clean \"counters\" folder. (Must contain less than 255 files.)\n");
seanhalle@0 381 }
seanhalle@0 382
seanhalle@0 383 #endif
seanhalle@0 384 /* It's all allocated inside VMS's big chunk -- that's about to be freed, so
seanhalle@0 385 * nothing to do here
seanhalle@0 386
seanhalle@0 387
seanhalle@0 388 for( coreIdx = 0; coreIdx < NUM_CORES; coreIdx++ )
seanhalle@0 389 {
seanhalle@0 390 VMS_int__free( semanticEnv->readyVPQs[coreIdx]->startOfData );
seanhalle@0 391 VMS_int__free( semanticEnv->readyVPQs[coreIdx] );
seanhalle@0 392 }
seanhalle@0 393 VMS_int__free( semanticEnv->readyVPQs );
seanhalle@0 394
seanhalle@0 395 freeHashTable( semanticEnv->commHashTbl );
seanhalle@0 396 VMS_int__free( _VMSMasterEnv->semanticEnv );
seanhalle@0 397 */
seanhalle@0 398 VMS_SS__cleanup_at_end_of_shutdown();
seanhalle@0 399 }
seanhalle@0 400
seanhalle@0 401
seanhalle@0 402 //===========================================================================
seanhalle@0 403
seanhalle@2 404 SlaveVP *
seanhalle@7 405 VSs__create_thread( TopLevelFnPtr fnPtr, void *initData,
seanhalle@7 406 SlaveVP *creatingThd )
seanhalle@2 407 { VSsSemReq reqData;
seanhalle@0 408
seanhalle@0 409 //the semantic request data is on the stack and disappears when this
seanhalle@0 410 // call returns -- it's guaranteed to remain in the VP's stack for as
seanhalle@0 411 // long as the VP is suspended.
seanhalle@0 412 reqData.reqType = 0; //know type because in a VMS create req
seanhalle@0 413 reqData.fnPtr = fnPtr;
seanhalle@0 414 reqData.initData = initData;
seanhalle@7 415 reqData.callingSlv = creatingThd;
seanhalle@0 416
seanhalle@7 417 VMS_WL__send_create_slaveVP_req( &reqData, creatingThd );
seanhalle@0 418
seanhalle@7 419 return creatingThd->dataRetFromReq;
seanhalle@0 420 }
seanhalle@0 421
seanhalle@7 422 /*This is always the last thing done in the code animated by a thread.
seanhalle@7 423 * Normally, this would be the last line of the thread's top level function.
seanhalle@7 424 * But, if the thread exits from any point, it has to do so by calling
seanhalle@7 425 * this.
seanhalle@7 426 *
seanhalle@7 427 *This must update the count of active sub-tasks (sub-threads) of parents,
seanhalle@8 428 * and the semantic data and task stub must stay.
seanhalle@7 429 */
seanhalle@2 430 void
seanhalle@7 431 VSs__end_thread( SlaveVP *thdToEnd )
seanhalle@8 432 { VSsSemData *semData;
seanhalle@8 433
seanhalle@7 434
seanhalle@7 435 //Update the count of live sub-tasks in parent. If parent was a
seanhalle@7 436 // thread and has already ended, then if this was the last sub-task,
seanhalle@7 437 // free the semantic data and task stub of the parent.
seanhalle@8 438
seanhalle@7 439 VMS_WL__send_dissipate_req( thdToEnd );
seanhalle@0 440 }
seanhalle@0 441
seanhalle@0 442
seanhalle@0 443 //===========================================================================
seanhalle@0 444
seanhalle@0 445
seanhalle@4 446 //======================= task submit and end ==============================
seanhalle@4 447 /*
seanhalle@2 448 */
seanhalle@4 449 void
seanhalle@2 450 VSs__submit_task( VSsTaskType *taskType, void *args, SlaveVP *animSlv)
seanhalle@2 451 { VSsSemReq reqData;
seanhalle@0 452
seanhalle@2 453 reqData.reqType = submit_task;
seanhalle@4 454
seanhalle@2 455 reqData.taskType = taskType;
seanhalle@2 456 reqData.args = args;
seanhalle@4 457 reqData.callingSlv = animSlv;
seanhalle@2 458
seanhalle@4 459 reqData.taskID = NULL;
seanhalle@2 460
seanhalle@2 461 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 462 }
seanhalle@0 463
seanhalle@4 464 inline int32 *
seanhalle@4 465 VSs__create_taskID_of_size( int32 numInts, SlaveVP *animSlv )
seanhalle@4 466 { int32 *taskID;
seanhalle@4 467
seanhalle@4 468 taskID = VMS_WL__malloc( sizeof(int32) + numInts * sizeof(int32) );
seanhalle@4 469 taskID[0] = numInts;
seanhalle@4 470 return taskID;
seanhalle@4 471 }
seanhalle@4 472
seanhalle@4 473 void
seanhalle@4 474 VSs__submit_task_with_ID( VSsTaskType *taskType, void *args, int32 *taskID,
seanhalle@4 475 SlaveVP *animSlv)
seanhalle@4 476 { VSsSemReq reqData;
seanhalle@4 477
seanhalle@4 478 reqData.reqType = submit_task;
seanhalle@4 479
seanhalle@4 480 reqData.taskType = taskType;
seanhalle@4 481 reqData.args = args;
seanhalle@4 482 reqData.taskID = taskID;
seanhalle@4 483 reqData.callingSlv = animSlv;
seanhalle@4 484
seanhalle@4 485 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@4 486 }
seanhalle@4 487
seanhalle@4 488
seanhalle@4 489 /*This call is the last to happen in every task. It causes the slave to
seanhalle@2 490 * suspend and get the next task out of the task-queue. Notice there is no
seanhalle@2 491 * assigner here.. only one slave, no slave ReadyQ, and so on..
seanhalle@2 492 *Can either make the assigner take the next task out of the taskQ, or can
seanhalle@2 493 * leave all as it is, and make task-end take the next task.
seanhalle@2 494 *Note: this fits the case in the new VMS for no-context tasks, so will use
seanhalle@2 495 * the built-in taskQ of new VMS, and should be local and much faster.
seanhalle@2 496 *
seanhalle@2 497 *The task-stub is saved in the animSlv, so the request handler will get it
seanhalle@2 498 * from there, along with the task-type which has arg types, and so on..
seanhalle@4 499 *
seanhalle@4 500 * NOTE: if want, don't need to send the animating SlaveVP around..
seanhalle@4 501 * instead, can make a single slave per core, and coreCtrlr looks up the
seanhalle@4 502 * slave from having the core number.
seanhalle@4 503 *
seanhalle@4 504 *But, to stay compatible with all the other VMS languages, leave it in..
seanhalle@0 505 */
seanhalle@0 506 void
seanhalle@2 507 VSs__end_task( SlaveVP *animSlv )
seanhalle@2 508 { VSsSemReq reqData;
seanhalle@0 509
seanhalle@2 510 reqData.reqType = end_task;
seanhalle@2 511 reqData.callingSlv = animSlv;
seanhalle@2 512
seanhalle@2 513 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 514 }
seanhalle@0 515
seanhalle@4 516
nengel@5 517 void
nengel@5 518 VSs__taskwait(SlaveVP *animSlv)
nengel@5 519 {
nengel@5 520 VSsSemReq reqData;
nengel@5 521
nengel@5 522 reqData.reqType = taskwait;
nengel@5 523 reqData.callingSlv = animSlv;
nengel@5 524
nengel@5 525 VMS_WL__send_sem_request( &reqData, animSlv );
nengel@5 526 }
nengel@5 527
nengel@5 528
nengel@5 529
seanhalle@4 530 //========================== send and receive ============================
seanhalle@4 531 //
seanhalle@4 532
seanhalle@4 533 inline int32 *
seanhalle@4 534 VSs__give_self_taskID( SlaveVP *animSlv )
seanhalle@4 535 {
seanhalle@4 536 return ((VSsSemData*)animSlv->semanticData)->taskStub->taskID;
seanhalle@4 537 }
seanhalle@4 538
seanhalle@4 539 //================================ send ===================================
seanhalle@4 540
seanhalle@4 541 void
seanhalle@4 542 VSs__send_of_type_to( void *msg, const int32 type, int32 *receiverID,
seanhalle@4 543 SlaveVP *senderSlv )
seanhalle@4 544 { VSsSemReq reqData;
seanhalle@4 545
seanhalle@4 546 reqData.reqType = send_type_to;
seanhalle@4 547
seanhalle@4 548 reqData.msg = msg;
seanhalle@4 549 reqData.msgType = type;
seanhalle@4 550 reqData.receiverID = receiverID;
seanhalle@4 551 reqData.senderSlv = senderSlv;
seanhalle@4 552
seanhalle@4 553 reqData.nextReqInHashEntry = NULL;
seanhalle@4 554
seanhalle@4 555 VMS_WL__send_sem_request( &reqData, senderSlv );
seanhalle@4 556
seanhalle@4 557 //When come back from suspend, no longer own data reachable from msg
seanhalle@4 558 }
seanhalle@4 559
seanhalle@4 560 void
seanhalle@4 561 VSs__send_from_to( void *msg, int32 *senderID, int32 *receiverID, SlaveVP *senderSlv )
seanhalle@4 562 { VSsSemReq reqData;
seanhalle@4 563
seanhalle@4 564 reqData.reqType = send_from_to;
seanhalle@4 565
seanhalle@4 566 reqData.msg = msg;
seanhalle@4 567 reqData.senderID = senderID;
seanhalle@4 568 reqData.receiverID = receiverID;
seanhalle@4 569 reqData.senderSlv = senderSlv;
seanhalle@4 570
seanhalle@4 571 reqData.nextReqInHashEntry = NULL;
seanhalle@4 572
seanhalle@4 573 VMS_WL__send_sem_request( &reqData, senderSlv );
seanhalle@4 574 }
seanhalle@4 575
seanhalle@4 576
seanhalle@4 577 //================================ receive ================================
seanhalle@4 578
seanhalle@4 579 /*The "type" version of send and receive creates a many-to-one relationship.
seanhalle@4 580 * The sender is anonymous, and many sends can stack up, waiting to be
seanhalle@4 581 * received. The same receiver can also have send from-to's
seanhalle@4 582 * waiting for it, and those will be kept separate from the "type"
seanhalle@4 583 * messages.
seanhalle@4 584 */
seanhalle@4 585 void *
seanhalle@4 586 VSs__receive_type_to( const int32 type, int32* receiverID, SlaveVP *receiverSlv )
seanhalle@4 587 { DEBUG__printf1(dbgRqstHdlr,"WL: receive type to %d",receiverID[1] );
seanhalle@4 588 VSsSemReq reqData;
seanhalle@4 589
seanhalle@4 590 reqData.reqType = receive_type_to;
seanhalle@4 591
seanhalle@4 592 reqData.msgType = type;
seanhalle@4 593 reqData.receiverID = receiverID;
seanhalle@4 594 reqData.receiverSlv = receiverSlv;
seanhalle@4 595
seanhalle@4 596 reqData.nextReqInHashEntry = NULL;
seanhalle@4 597
seanhalle@4 598 VMS_WL__send_sem_request( &reqData, receiverSlv );
seanhalle@4 599
seanhalle@4 600 return receiverSlv->dataRetFromReq;
seanhalle@4 601 }
seanhalle@4 602
seanhalle@4 603
seanhalle@4 604
seanhalle@4 605 /*Call this at the point a receiving task wants in-coming data.
seanhalle@4 606 * Use this from-to form when know senderID -- it makes a direct channel
seanhalle@4 607 * between sender and receiver.
seanhalle@4 608 */
seanhalle@4 609 void *
seanhalle@4 610 VSs__receive_from_to( int32 *senderID, int32 *receiverID, SlaveVP *receiverSlv )
seanhalle@4 611 {
seanhalle@4 612 VSsSemReq reqData;
seanhalle@4 613
seanhalle@4 614 reqData.reqType = receive_from_to;
seanhalle@4 615
seanhalle@4 616 reqData.senderID = senderID;
seanhalle@4 617 reqData.receiverID = receiverID;
seanhalle@4 618 reqData.receiverSlv = receiverSlv;
seanhalle@4 619
seanhalle@4 620 reqData.nextReqInHashEntry = NULL;
seanhalle@4 621 DEBUG__printf2(dbgRqstHdlr,"WL: receive from %d to: %d", reqData.senderID[1], reqData.receiverID[1]);
seanhalle@4 622
seanhalle@4 623 VMS_WL__send_sem_request( &reqData, receiverSlv );
seanhalle@4 624
seanhalle@4 625 return receiverSlv->dataRetFromReq;
seanhalle@4 626 }
seanhalle@4 627
seanhalle@4 628
seanhalle@4 629
seanhalle@4 630
seanhalle@2 631 //==========================================================================
seanhalle@0 632 //
seanhalle@0 633 /*A function singleton is a function whose body executes exactly once, on a
seanhalle@0 634 * single core, no matter how many times the fuction is called and no
seanhalle@0 635 * matter how many cores or the timing of cores calling it.
seanhalle@0 636 *
seanhalle@0 637 *A data singleton is a ticket attached to data. That ticket can be used
seanhalle@0 638 * to get the data through the function exactly once, no matter how many
seanhalle@0 639 * times the data is given to the function, and no matter the timing of
seanhalle@0 640 * trying to get the data through from different cores.
seanhalle@0 641 */
seanhalle@0 642
seanhalle@0 643 /*asm function declarations*/
seanhalle@2 644 void asm_save_ret_to_singleton(VSsSingleton *singletonPtrAddr);
seanhalle@2 645 void asm_write_ret_from_singleton(VSsSingleton *singletonPtrAddr);
seanhalle@0 646
seanhalle@0 647 /*Fn singleton uses ID as index into array of singleton structs held in the
seanhalle@0 648 * semantic environment.
seanhalle@0 649 */
seanhalle@0 650 void
seanhalle@3 651 VSs__start_fn_singleton( int32 singletonID, SlaveVP *animSlv )
seanhalle@0 652 {
seanhalle@2 653 VSsSemReq reqData;
seanhalle@0 654
seanhalle@0 655 //
seanhalle@0 656 reqData.reqType = singleton_fn_start;
seanhalle@0 657 reqData.singletonID = singletonID;
seanhalle@0 658
seanhalle@3 659 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@3 660 if( animSlv->dataRetFromReq ) //will be 0 or addr of label in end singleton
seanhalle@0 661 {
seanhalle@3 662 VSsSemEnv *semEnv = VMS_int__give_sem_env_for( animSlv );
seanhalle@0 663 asm_write_ret_from_singleton(&(semEnv->fnSingletons[ singletonID]));
seanhalle@0 664 }
seanhalle@0 665 }
seanhalle@0 666
seanhalle@0 667 /*Data singleton hands addr of loc holding a pointer to a singleton struct.
seanhalle@0 668 * The start_data_singleton makes the structure and puts its addr into the
seanhalle@0 669 * location.
seanhalle@0 670 */
seanhalle@0 671 void
seanhalle@3 672 VSs__start_data_singleton( VSsSingleton **singletonAddr, SlaveVP *animSlv )
seanhalle@0 673 {
seanhalle@2 674 VSsSemReq reqData;
seanhalle@0 675
seanhalle@0 676 if( *singletonAddr && (*singletonAddr)->hasFinished )
seanhalle@0 677 goto JmpToEndSingleton;
seanhalle@0 678
seanhalle@0 679 reqData.reqType = singleton_data_start;
seanhalle@0 680 reqData.singletonPtrAddr = singletonAddr;
seanhalle@0 681
seanhalle@3 682 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@3 683 if( animSlv->dataRetFromReq ) //either 0 or end singleton's return addr
seanhalle@0 684 { //Assembly code changes the return addr on the stack to the one
seanhalle@0 685 // saved into the singleton by the end-singleton-fn
seanhalle@0 686 //The return addr is at 0x4(%%ebp)
seanhalle@0 687 JmpToEndSingleton:
seanhalle@0 688 asm_write_ret_from_singleton(*singletonAddr);
seanhalle@0 689 }
seanhalle@0 690 //now, simply return
seanhalle@0 691 //will exit either from the start singleton call or the end-singleton call
seanhalle@0 692 }
seanhalle@0 693
seanhalle@0 694 /*Uses ID as index into array of flags. If flag already set, resumes from
seanhalle@0 695 * end-label. Else, sets flag and resumes normally.
seanhalle@0 696 *
seanhalle@0 697 *Note, this call cannot be inlined because the instr addr at the label
seanhalle@0 698 * inside is shared by all invocations of a given singleton ID.
seanhalle@0 699 */
seanhalle@0 700 void
seanhalle@3 701 VSs__end_fn_singleton( int32 singletonID, SlaveVP *animSlv )
seanhalle@0 702 {
seanhalle@2 703 VSsSemReq reqData;
seanhalle@0 704
seanhalle@0 705 //don't need this addr until after at least one singleton has reached
seanhalle@0 706 // this function
seanhalle@3 707 VSsSemEnv *semEnv = VMS_int__give_sem_env_for( animSlv );
seanhalle@0 708 asm_write_ret_from_singleton(&(semEnv->fnSingletons[ singletonID]));
seanhalle@0 709
seanhalle@0 710 reqData.reqType = singleton_fn_end;
seanhalle@0 711 reqData.singletonID = singletonID;
seanhalle@0 712
seanhalle@3 713 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 714
seanhalle@0 715 EndSingletonInstrAddr:
seanhalle@0 716 return;
seanhalle@0 717 }
seanhalle@0 718
seanhalle@0 719 void
seanhalle@3 720 VSs__end_data_singleton( VSsSingleton **singletonPtrAddr, SlaveVP *animSlv )
seanhalle@0 721 {
seanhalle@2 722 VSsSemReq reqData;
seanhalle@0 723
seanhalle@0 724 //don't need this addr until after singleton struct has reached
seanhalle@0 725 // this function for first time
seanhalle@0 726 //do assembly that saves the return addr of this fn call into the
seanhalle@0 727 // data singleton -- that data-singleton can only be given to exactly
seanhalle@0 728 // one instance in the code of this function. However, can use this
seanhalle@0 729 // function in different places for different data-singletons.
seanhalle@0 730 // (*(singletonAddr))->endInstrAddr = &&EndDataSingletonInstrAddr;
seanhalle@0 731
seanhalle@0 732
seanhalle@0 733 asm_save_ret_to_singleton(*singletonPtrAddr);
seanhalle@0 734
seanhalle@0 735 reqData.reqType = singleton_data_end;
seanhalle@0 736 reqData.singletonPtrAddr = singletonPtrAddr;
seanhalle@0 737
seanhalle@3 738 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 739 }
seanhalle@0 740
seanhalle@0 741 /*This executes the function in the masterVP, so it executes in isolation
seanhalle@0 742 * from any other copies -- only one copy of the function can ever execute
seanhalle@0 743 * at a time.
seanhalle@0 744 *
seanhalle@0 745 *It suspends to the master, and the request handler takes the function
seanhalle@0 746 * pointer out of the request and calls it, then resumes the VP.
seanhalle@0 747 *Only very short functions should be called this way -- for longer-running
seanhalle@0 748 * isolation, use transaction-start and transaction-end, which run the code
seanhalle@0 749 * between as work-code.
seanhalle@0 750 */
seanhalle@0 751 void
seanhalle@2 752 VSs__animate_short_fn_in_isolation( PtrToAtomicFn ptrToFnToExecInMaster,
seanhalle@3 753 void *data, SlaveVP *animSlv )
seanhalle@0 754 {
seanhalle@2 755 VSsSemReq reqData;
seanhalle@0 756
seanhalle@0 757 //
seanhalle@0 758 reqData.reqType = atomic;
seanhalle@0 759 reqData.fnToExecInMaster = ptrToFnToExecInMaster;
seanhalle@0 760 reqData.dataForFn = data;
seanhalle@0 761
seanhalle@3 762 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 763 }
seanhalle@0 764
seanhalle@0 765
seanhalle@0 766 /*This suspends to the master.
seanhalle@0 767 *First, it looks at the VP's data, to see the highest transactionID that VP
seanhalle@0 768 * already has entered. If the current ID is not larger, it throws an
seanhalle@0 769 * exception stating a bug in the code. Otherwise it puts the current ID
seanhalle@0 770 * there, and adds the ID to a linked list of IDs entered -- the list is
seanhalle@0 771 * used to check that exits are properly ordered.
seanhalle@0 772 *Next it is uses transactionID as index into an array of transaction
seanhalle@0 773 * structures.
seanhalle@0 774 *If the "VP_currently_executing" field is non-null, then put requesting VP
seanhalle@0 775 * into queue in the struct. (At some point a holder will request
seanhalle@0 776 * end-transaction, which will take this VP from the queue and resume it.)
seanhalle@0 777 *If NULL, then write requesting into the field and resume.
seanhalle@0 778 */
seanhalle@0 779 void
seanhalle@3 780 VSs__start_transaction( int32 transactionID, SlaveVP *animSlv )
seanhalle@0 781 {
seanhalle@2 782 VSsSemReq reqData;
seanhalle@0 783
seanhalle@0 784 //
seanhalle@3 785 reqData.callingSlv = animSlv;
seanhalle@0 786 reqData.reqType = trans_start;
seanhalle@0 787 reqData.transID = transactionID;
seanhalle@0 788
seanhalle@3 789 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 790 }
seanhalle@0 791
seanhalle@0 792 /*This suspends to the master, then uses transactionID as index into an
seanhalle@0 793 * array of transaction structures.
seanhalle@0 794 *It looks at VP_currently_executing to be sure it's same as requesting VP.
seanhalle@0 795 * If different, throws an exception, stating there's a bug in the code.
seanhalle@0 796 *Next it looks at the queue in the structure.
seanhalle@0 797 *If it's empty, it sets VP_currently_executing field to NULL and resumes.
seanhalle@0 798 *If something in, gets it, sets VP_currently_executing to that VP, then
seanhalle@0 799 * resumes both.
seanhalle@0 800 */
seanhalle@0 801 void
seanhalle@3 802 VSs__end_transaction( int32 transactionID, SlaveVP *animSlv )
seanhalle@0 803 {
seanhalle@2 804 VSsSemReq reqData;
seanhalle@0 805
seanhalle@0 806 //
seanhalle@3 807 reqData.callingSlv = animSlv;
seanhalle@0 808 reqData.reqType = trans_end;
seanhalle@0 809 reqData.transID = transactionID;
seanhalle@0 810
seanhalle@3 811 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 812 }
seanhalle@7 813
seanhalle@7 814 //======================== Internal ==================================
seanhalle@7 815 /*
seanhalle@7 816 */
seanhalle@7 817 SlaveVP *
seanhalle@7 818 VSs__create_slave_with( TopLevelFnPtr fnPtr, void *initData,
seanhalle@7 819 SlaveVP *creatingSlv )
seanhalle@7 820 { VSsSemReq reqData;
seanhalle@7 821
seanhalle@7 822 //the semantic request data is on the stack and disappears when this
seanhalle@7 823 // call returns -- it's guaranteed to remain in the VP's stack for as
seanhalle@7 824 // long as the VP is suspended.
seanhalle@7 825 reqData.reqType = 0; //know type because in a VMS create req
seanhalle@7 826 reqData.coreToAssignOnto = -1; //means round-robin assign
seanhalle@7 827 reqData.fnPtr = fnPtr;
seanhalle@7 828 reqData.initData = initData;
seanhalle@7 829 reqData.callingSlv = creatingSlv;
seanhalle@7 830
seanhalle@7 831 VMS_WL__send_create_slaveVP_req( &reqData, creatingSlv );
seanhalle@7 832
seanhalle@7 833 return creatingSlv->dataRetFromReq;
seanhalle@7 834 }
seanhalle@7 835
seanhalle@7 836 SlaveVP *
seanhalle@7 837 VSs__create_slave_with_affinity( TopLevelFnPtr fnPtr, void *initData,
seanhalle@7 838 SlaveVP *creatingSlv, int32 coreToAssignOnto )
seanhalle@7 839 { VSsSemReq reqData;
seanhalle@7 840
seanhalle@7 841 //the semantic request data is on the stack and disappears when this
seanhalle@7 842 // call returns -- it's guaranteed to remain in the VP's stack for as
seanhalle@7 843 // long as the VP is suspended.
seanhalle@7 844 reqData.reqType = create_slave_w_aff; //not used, May 2012
seanhalle@7 845 reqData.coreToAssignOnto = coreToAssignOnto;
seanhalle@7 846 reqData.fnPtr = fnPtr;
seanhalle@7 847 reqData.initData = initData;
seanhalle@7 848 reqData.callingSlv = creatingSlv;
seanhalle@7 849
seanhalle@7 850 VMS_WL__send_create_slaveVP_req( &reqData, creatingSlv );
seanhalle@7 851
seanhalle@7 852 return creatingSlv->dataRetFromReq;
seanhalle@7 853 }
seanhalle@7 854