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annotate VSs.c @ 13:2bf83f932705

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fix: mix-up between 2 redundant types of carriers
author Nina Engelhardt <nengel@mailbox.tu-berlin.de>
date Tue, 21 Aug 2012 17:42:07 +0200
parents f56e3beac86b
children 459055db7fc0
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;
nengel@13 105 semData->slaveType = ThreadSlv;
seanhalle@0 106
seanhalle@6 107 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@2 111 VSs__cleanup_after_shutdown();
seanhalle@0 112 }
seanhalle@0 113
seanhalle@0 114
seanhalle@0 115 int32
seanhalle@2 116 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@2 122 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@2 128 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@2 137 VSs__start_primitive()
seanhalle@2 138 { 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@2 148 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@2 152 startTime =((VSsSemEnv*)(_VMSMasterEnv->semanticEnv))->primitiveStartTime;
seanhalle@0 153 return (endTime - startTime);
seanhalle@0 154 }
seanhalle@0 155
seanhalle@0 156 //===========================================================================
seanhalle@0 157
seanhalle@2 158 /*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@2 169 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@2 175 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@2 186 VSs__init_Helper()
seanhalle@2 187 { VSsSemEnv *semanticEnv;
seanhalle@6 188 int32 i, coreNum, slotNum;
seanhalle@10 189 VSsSemData *semData;
seanhalle@0 190
seanhalle@0 191 //Hook up the semantic layer's plug-ins to the Master virt procr
seanhalle@2 192 _VMSMasterEnv->requestHandler = &VSs__Request_Handler;
seanhalle@2 193 _VMSMasterEnv->slaveAssigner = &VSs__assign_slaveVP_to_slot;
seanhalle@0 194 #ifdef HOLISTIC__TURN_ON_PERF_COUNTERS
seanhalle@2 195 _VMSMasterEnv->counterHandler = &VSs__counter_handler;
seanhalle@0 196 #endif
seanhalle@0 197
seanhalle@0 198 //create the semantic layer's environment (all its data) and add to
seanhalle@0 199 // the master environment
seanhalle@2 200 semanticEnv = VMS_int__malloc( sizeof( VSsSemEnv ) );
seanhalle@0 201 _VMSMasterEnv->semanticEnv = semanticEnv;
seanhalle@0 202
seanhalle@0 203 #ifdef HOLISTIC__TURN_ON_PERF_COUNTERS
seanhalle@2 204 VSs__init_counter_data_structs();
seanhalle@0 205 #endif
seanhalle@3 206
seanhalle@0 207 semanticEnv->shutdownInitiated = FALSE;
seanhalle@3 208 semanticEnv->coreIsDone = VMS_int__malloc( NUM_CORES * sizeof( bool32 ) );
seanhalle@6 209 //For each animation slot, there is an idle slave, and an initial
seanhalle@6 210 // slave assigned as the current-task-slave. Create them here.
seanhalle@10 211 SlaveVP *idleSlv, *slotTaskSlv;
seanhalle@6 212 for( coreNum = 0; coreNum < NUM_CORES; coreNum++ )
seanhalle@6 213 { semanticEnv->coreIsDone[coreNum] = FALSE; //use during shutdown
seanhalle@6 214
seanhalle@6 215 for( slotNum = 0; slotNum < NUM_ANIM_SLOTS; ++slotNum )
seanhalle@10 216 { idleSlv = VSs__create_slave_helper( &idle_fn, NULL, semanticEnv, 0);
seanhalle@6 217 idleSlv->coreAnimatedBy = coreNum;
seanhalle@9 218 idleSlv->animSlotAssignedTo =
seanhalle@9 219 _VMSMasterEnv->allAnimSlots[coreNum][slotNum];
seanhalle@6 220 semanticEnv->idleSlv[coreNum][slotNum] = idleSlv;
seanhalle@6 221
seanhalle@10 222 slotTaskSlv = VSs__create_slave_helper( &idle_fn, NULL, semanticEnv, 0);
seanhalle@10 223 slotTaskSlv->coreAnimatedBy = coreNum;
seanhalle@10 224 slotTaskSlv->animSlotAssignedTo =
seanhalle@9 225 _VMSMasterEnv->allAnimSlots[coreNum][slotNum];
seanhalle@10 226
seanhalle@10 227 semData = slotTaskSlv->semanticData;
seanhalle@10 228 semData->needsTaskAssigned = TRUE;
seanhalle@10 229 semData->slaveType = SlotTaskSlv;
seanhalle@10 230 semanticEnv->slotTaskSlvs[coreNum][slotNum] = slotTaskSlv;
seanhalle@0 231 }
seanhalle@3 232 }
seanhalle@0 233
seanhalle@6 234 //create the ready queues, hash tables used for matching and so forth
seanhalle@6 235 semanticEnv->slavesReadyToResumeQ = makeVMSQ();
seanhalle@9 236 semanticEnv->freeExtraTaskSlvQ = makeVMSQ();
seanhalle@6 237 semanticEnv->taskReadyQ = makeVMSQ();
seanhalle@0 238
seanhalle@3 239 semanticEnv->argPtrHashTbl = makeHashTable32( 16, &VMS_int__free );
seanhalle@4 240 semanticEnv->commHashTbl = makeHashTable32( 16, &VMS_int__free );
seanhalle@6 241
seanhalle@6 242 semanticEnv->nextCoreToGetNewSlv = 0;
seanhalle@6 243
seanhalle@0 244
seanhalle@0 245 //TODO: bug -- turn these arrays into dyn arrays to eliminate limit
seanhalle@0 246 //semanticEnv->singletonHasBeenExecutedFlags = makeDynArrayInfo( );
seanhalle@0 247 //semanticEnv->transactionStrucs = makeDynArrayInfo( );
seanhalle@0 248 for( i = 0; i < NUM_STRUCS_IN_SEM_ENV; i++ )
seanhalle@0 249 {
seanhalle@0 250 semanticEnv->fnSingletons[i].endInstrAddr = NULL;
seanhalle@0 251 semanticEnv->fnSingletons[i].hasBeenStarted = FALSE;
seanhalle@0 252 semanticEnv->fnSingletons[i].hasFinished = FALSE;
seanhalle@0 253 semanticEnv->fnSingletons[i].waitQ = makeVMSQ();
seanhalle@0 254 semanticEnv->transactionStrucs[i].waitingVPQ = makeVMSQ();
seanhalle@0 255 }
seanhalle@6 256
seanhalle@8 257 semanticEnv->numLiveExtraTaskSlvs = 0; //must be last
seanhalle@8 258 semanticEnv->numLiveThreadSlvs = 1; //must be last, count the seed
seanhalle@6 259
seanhalle@6 260 #ifdef HOLISTIC__TURN_ON_OBSERVE_UCC
seanhalle@6 261 semanticEnv->unitList = makeListOfArrays(sizeof(Unit),128);
seanhalle@6 262 semanticEnv->ctlDependenciesList = makeListOfArrays(sizeof(Dependency),128);
seanhalle@6 263 semanticEnv->commDependenciesList = makeListOfArrays(sizeof(Dependency),128);
seanhalle@6 264 semanticEnv->dynDependenciesList = makeListOfArrays(sizeof(Dependency),128);
seanhalle@6 265 semanticEnv->ntonGroupsInfo = makePrivDynArrayOfSize((void***)&(semanticEnv->ntonGroups),8);
seanhalle@6 266
seanhalle@6 267 semanticEnv->hwArcs = makeListOfArrays(sizeof(Dependency),128);
seanhalle@6 268 memset(semanticEnv->last_in_slot,0,sizeof(NUM_CORES * NUM_ANIM_SLOTS * sizeof(Unit)));
seanhalle@6 269 #endif
seanhalle@0 270 }
seanhalle@0 271
seanhalle@0 272
seanhalle@2 273 /*Frees any memory allocated by VSs__init() then calls VMS_int__shutdown
seanhalle@0 274 */
seanhalle@0 275 void
seanhalle@2 276 VSs__cleanup_after_shutdown()
seanhalle@2 277 { VSsSemEnv *semanticEnv;
seanhalle@0 278
seanhalle@0 279 semanticEnv = _VMSMasterEnv->semanticEnv;
seanhalle@0 280
seanhalle@0 281 #ifdef HOLISTIC__TURN_ON_OBSERVE_UCC
seanhalle@0 282 //UCC
seanhalle@0 283 FILE* output;
seanhalle@0 284 int n;
seanhalle@0 285 char filename[255];
seanhalle@0 286 for(n=0;n<255;n++)
seanhalle@0 287 {
seanhalle@0 288 sprintf(filename, "./counters/UCC.%d",n);
seanhalle@0 289 output = fopen(filename,"r");
seanhalle@0 290 if(output)
seanhalle@0 291 {
seanhalle@0 292 fclose(output);
seanhalle@0 293 }else{
seanhalle@0 294 break;
seanhalle@0 295 }
seanhalle@0 296 }
seanhalle@0 297 if(n<255){
seanhalle@0 298 printf("Saving UCC to File: %s ...\n", filename);
seanhalle@0 299 output = fopen(filename,"w+");
seanhalle@0 300 if(output!=NULL){
seanhalle@0 301 set_dependency_file(output);
seanhalle@0 302 //fprintf(output,"digraph Dependencies {\n");
seanhalle@0 303 //set_dot_file(output);
seanhalle@0 304 //FIXME: first line still depends on counters being enabled, replace w/ unit struct!
seanhalle@0 305 //forAllInDynArrayDo(_VMSMasterEnv->counter_history_array_info, &print_dot_node_info );
seanhalle@0 306 forAllInListOfArraysDo(semanticEnv->unitList, &print_unit_to_file);
seanhalle@0 307 forAllInListOfArraysDo( semanticEnv->commDependenciesList, &print_comm_dependency_to_file );
seanhalle@0 308 forAllInListOfArraysDo( semanticEnv->ctlDependenciesList, &print_ctl_dependency_to_file );
seanhalle@0 309 forAllInDynArrayDo(semanticEnv->ntonGroupsInfo,&print_nton_to_file);
seanhalle@0 310 //fprintf(output,"}\n");
seanhalle@0 311 fflush(output);
seanhalle@0 312
seanhalle@0 313 } else
seanhalle@0 314 printf("Opening UCC file failed. Please check that folder \"counters\" exists in run directory and has write permission.\n");
seanhalle@0 315 } else {
seanhalle@0 316 printf("Could not open UCC file, please clean \"counters\" folder. (Must contain less than 255 files.)\n");
seanhalle@0 317 }
seanhalle@0 318 //Loop Graph
seanhalle@0 319 for(n=0;n<255;n++)
seanhalle@0 320 {
seanhalle@0 321 sprintf(filename, "./counters/LoopGraph.%d",n);
seanhalle@0 322 output = fopen(filename,"r");
seanhalle@0 323 if(output)
seanhalle@0 324 {
seanhalle@0 325 fclose(output);
seanhalle@0 326 }else{
seanhalle@0 327 break;
seanhalle@0 328 }
seanhalle@0 329 }
seanhalle@0 330 if(n<255){
seanhalle@0 331 printf("Saving LoopGraph to File: %s ...\n", filename);
seanhalle@0 332 output = fopen(filename,"w+");
seanhalle@0 333 if(output!=NULL){
seanhalle@0 334 set_dependency_file(output);
seanhalle@0 335 //fprintf(output,"digraph Dependencies {\n");
seanhalle@0 336 //set_dot_file(output);
seanhalle@0 337 //FIXME: first line still depends on counters being enabled, replace w/ unit struct!
seanhalle@0 338 //forAllInDynArrayDo(_VMSMasterEnv->counter_history_array_info, &print_dot_node_info );
seanhalle@0 339 forAllInListOfArraysDo( semanticEnv->unitList, &print_unit_to_file );
seanhalle@0 340 forAllInListOfArraysDo( semanticEnv->commDependenciesList, &print_comm_dependency_to_file );
seanhalle@0 341 forAllInListOfArraysDo( semanticEnv->ctlDependenciesList, &print_ctl_dependency_to_file );
seanhalle@0 342 forAllInListOfArraysDo( semanticEnv->dynDependenciesList, &print_dyn_dependency_to_file );
seanhalle@0 343 forAllInListOfArraysDo( semanticEnv->hwArcs, &print_hw_dependency_to_file );
seanhalle@0 344 //fprintf(output,"}\n");
seanhalle@0 345 fflush(output);
seanhalle@0 346
seanhalle@0 347 } else
seanhalle@0 348 printf("Opening LoopGraph file failed. Please check that folder \"counters\" exists in run directory and has write permission.\n");
seanhalle@0 349 } else {
seanhalle@0 350 printf("Could not open LoopGraph file, please clean \"counters\" folder. (Must contain less than 255 files.)\n");
seanhalle@0 351 }
seanhalle@0 352
seanhalle@0 353
seanhalle@0 354 freeListOfArrays(semanticEnv->unitList);
seanhalle@0 355 freeListOfArrays(semanticEnv->commDependenciesList);
seanhalle@0 356 freeListOfArrays(semanticEnv->ctlDependenciesList);
seanhalle@0 357 freeListOfArrays(semanticEnv->dynDependenciesList);
seanhalle@0 358
seanhalle@0 359 #endif
seanhalle@0 360 #ifdef HOLISTIC__TURN_ON_PERF_COUNTERS
seanhalle@0 361 for(n=0;n<255;n++)
seanhalle@0 362 {
seanhalle@0 363 sprintf(filename, "./counters/Counters.%d.csv",n);
seanhalle@0 364 output = fopen(filename,"r");
seanhalle@0 365 if(output)
seanhalle@0 366 {
seanhalle@0 367 fclose(output);
seanhalle@0 368 }else{
seanhalle@0 369 break;
seanhalle@0 370 }
seanhalle@0 371 }
seanhalle@0 372 if(n<255){
seanhalle@0 373 printf("Saving Counter measurements to File: %s ...\n", filename);
seanhalle@0 374 output = fopen(filename,"w+");
seanhalle@0 375 if(output!=NULL){
seanhalle@0 376 set_counter_file(output);
seanhalle@0 377 int i;
seanhalle@0 378 for(i=0;i<NUM_CORES;i++){
seanhalle@0 379 forAllInListOfArraysDo( semanticEnv->counterList[i], &print_counter_events_to_file );
seanhalle@0 380 fflush(output);
seanhalle@0 381 }
seanhalle@0 382
seanhalle@0 383 } else
seanhalle@0 384 printf("Opening UCC file failed. Please check that folder \"counters\" exists in run directory and has write permission.\n");
seanhalle@0 385 } else {
seanhalle@0 386 printf("Could not open UCC file, please clean \"counters\" folder. (Must contain less than 255 files.)\n");
seanhalle@0 387 }
seanhalle@0 388
seanhalle@0 389 #endif
seanhalle@0 390 /* It's all allocated inside VMS's big chunk -- that's about to be freed, so
seanhalle@0 391 * nothing to do here
seanhalle@0 392
seanhalle@0 393
seanhalle@0 394 for( coreIdx = 0; coreIdx < NUM_CORES; coreIdx++ )
seanhalle@0 395 {
seanhalle@0 396 VMS_int__free( semanticEnv->readyVPQs[coreIdx]->startOfData );
seanhalle@0 397 VMS_int__free( semanticEnv->readyVPQs[coreIdx] );
seanhalle@0 398 }
seanhalle@0 399 VMS_int__free( semanticEnv->readyVPQs );
seanhalle@0 400
seanhalle@0 401 freeHashTable( semanticEnv->commHashTbl );
seanhalle@0 402 VMS_int__free( _VMSMasterEnv->semanticEnv );
seanhalle@0 403 */
seanhalle@0 404 VMS_SS__cleanup_at_end_of_shutdown();
seanhalle@0 405 }
seanhalle@0 406
seanhalle@0 407
seanhalle@0 408 //===========================================================================
seanhalle@0 409
seanhalle@2 410 SlaveVP *
seanhalle@7 411 VSs__create_thread( TopLevelFnPtr fnPtr, void *initData,
seanhalle@7 412 SlaveVP *creatingThd )
seanhalle@2 413 { VSsSemReq reqData;
seanhalle@0 414
seanhalle@0 415 //the semantic request data is on the stack and disappears when this
seanhalle@0 416 // call returns -- it's guaranteed to remain in the VP's stack for as
seanhalle@0 417 // long as the VP is suspended.
seanhalle@0 418 reqData.reqType = 0; //know type because in a VMS create req
seanhalle@0 419 reqData.fnPtr = fnPtr;
seanhalle@0 420 reqData.initData = initData;
seanhalle@7 421 reqData.callingSlv = creatingThd;
seanhalle@0 422
seanhalle@7 423 VMS_WL__send_create_slaveVP_req( &reqData, creatingThd );
seanhalle@0 424
seanhalle@7 425 return creatingThd->dataRetFromReq;
seanhalle@0 426 }
seanhalle@0 427
seanhalle@10 428 /*This is always the last thing done in the code animated by a thread VP.
seanhalle@7 429 * Normally, this would be the last line of the thread's top level function.
seanhalle@7 430 * But, if the thread exits from any point, it has to do so by calling
seanhalle@7 431 * this.
seanhalle@10 432 *
seanhalle@10 433 *It simply sends a dissipate request, which handles all the state cleanup.
seanhalle@7 434 */
seanhalle@2 435 void
seanhalle@7 436 VSs__end_thread( SlaveVP *thdToEnd )
seanhalle@8 437 { VSsSemData *semData;
seanhalle@8 438
seanhalle@7 439 VMS_WL__send_dissipate_req( thdToEnd );
seanhalle@0 440 }
seanhalle@0 441
seanhalle@0 442
seanhalle@10 443
seanhalle@0 444 //===========================================================================
seanhalle@0 445
seanhalle@0 446
seanhalle@4 447 //======================= task submit and end ==============================
seanhalle@4 448 /*
seanhalle@2 449 */
seanhalle@4 450 void
seanhalle@2 451 VSs__submit_task( VSsTaskType *taskType, void *args, SlaveVP *animSlv)
seanhalle@2 452 { VSsSemReq reqData;
seanhalle@0 453
seanhalle@2 454 reqData.reqType = submit_task;
seanhalle@4 455
seanhalle@2 456 reqData.taskType = taskType;
seanhalle@2 457 reqData.args = args;
seanhalle@4 458 reqData.callingSlv = animSlv;
seanhalle@2 459
seanhalle@4 460 reqData.taskID = NULL;
seanhalle@2 461
seanhalle@2 462 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 463 }
seanhalle@0 464
seanhalle@4 465 inline int32 *
seanhalle@4 466 VSs__create_taskID_of_size( int32 numInts, SlaveVP *animSlv )
seanhalle@4 467 { int32 *taskID;
seanhalle@4 468
seanhalle@4 469 taskID = VMS_WL__malloc( sizeof(int32) + numInts * sizeof(int32) );
seanhalle@4 470 taskID[0] = numInts;
seanhalle@4 471 return taskID;
seanhalle@4 472 }
seanhalle@4 473
seanhalle@4 474 void
seanhalle@4 475 VSs__submit_task_with_ID( VSsTaskType *taskType, void *args, int32 *taskID,
seanhalle@4 476 SlaveVP *animSlv)
seanhalle@4 477 { VSsSemReq reqData;
seanhalle@4 478
seanhalle@4 479 reqData.reqType = submit_task;
seanhalle@4 480
seanhalle@4 481 reqData.taskType = taskType;
seanhalle@4 482 reqData.args = args;
seanhalle@4 483 reqData.taskID = taskID;
seanhalle@4 484 reqData.callingSlv = animSlv;
seanhalle@4 485
seanhalle@4 486 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@4 487 }
seanhalle@4 488
seanhalle@4 489
seanhalle@4 490 /*This call is the last to happen in every task. It causes the slave to
seanhalle@2 491 * suspend and get the next task out of the task-queue. Notice there is no
seanhalle@2 492 * assigner here.. only one slave, no slave ReadyQ, and so on..
seanhalle@2 493 *Can either make the assigner take the next task out of the taskQ, or can
seanhalle@2 494 * leave all as it is, and make task-end take the next task.
seanhalle@2 495 *Note: this fits the case in the new VMS for no-context tasks, so will use
seanhalle@2 496 * the built-in taskQ of new VMS, and should be local and much faster.
seanhalle@2 497 *
seanhalle@2 498 *The task-stub is saved in the animSlv, so the request handler will get it
seanhalle@2 499 * from there, along with the task-type which has arg types, and so on..
seanhalle@4 500 *
seanhalle@4 501 * NOTE: if want, don't need to send the animating SlaveVP around..
seanhalle@4 502 * instead, can make a single slave per core, and coreCtrlr looks up the
seanhalle@4 503 * slave from having the core number.
seanhalle@4 504 *
seanhalle@4 505 *But, to stay compatible with all the other VMS languages, leave it in..
seanhalle@0 506 */
seanhalle@0 507 void
seanhalle@2 508 VSs__end_task( SlaveVP *animSlv )
seanhalle@2 509 { VSsSemReq reqData;
seanhalle@0 510
seanhalle@2 511 reqData.reqType = end_task;
seanhalle@2 512 reqData.callingSlv = animSlv;
seanhalle@2 513
seanhalle@2 514 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 515 }
seanhalle@0 516
seanhalle@4 517
nengel@5 518 void
nengel@5 519 VSs__taskwait(SlaveVP *animSlv)
nengel@5 520 {
nengel@5 521 VSsSemReq reqData;
nengel@5 522
nengel@5 523 reqData.reqType = taskwait;
nengel@5 524 reqData.callingSlv = animSlv;
nengel@5 525
nengel@5 526 VMS_WL__send_sem_request( &reqData, animSlv );
nengel@5 527 }
nengel@5 528
nengel@5 529
nengel@5 530
seanhalle@4 531 //========================== send and receive ============================
seanhalle@4 532 //
seanhalle@4 533
seanhalle@4 534 inline int32 *
seanhalle@4 535 VSs__give_self_taskID( SlaveVP *animSlv )
seanhalle@4 536 {
seanhalle@4 537 return ((VSsSemData*)animSlv->semanticData)->taskStub->taskID;
seanhalle@4 538 }
seanhalle@4 539
seanhalle@4 540 //================================ send ===================================
seanhalle@4 541
seanhalle@4 542 void
seanhalle@4 543 VSs__send_of_type_to( void *msg, const int32 type, int32 *receiverID,
seanhalle@4 544 SlaveVP *senderSlv )
seanhalle@4 545 { VSsSemReq reqData;
seanhalle@4 546
seanhalle@4 547 reqData.reqType = send_type_to;
seanhalle@4 548
seanhalle@4 549 reqData.msg = msg;
seanhalle@4 550 reqData.msgType = type;
seanhalle@4 551 reqData.receiverID = receiverID;
seanhalle@4 552 reqData.senderSlv = senderSlv;
seanhalle@4 553
seanhalle@4 554 reqData.nextReqInHashEntry = NULL;
seanhalle@4 555
seanhalle@4 556 VMS_WL__send_sem_request( &reqData, senderSlv );
seanhalle@4 557
seanhalle@4 558 //When come back from suspend, no longer own data reachable from msg
seanhalle@4 559 }
seanhalle@4 560
seanhalle@4 561 void
seanhalle@4 562 VSs__send_from_to( void *msg, int32 *senderID, int32 *receiverID, SlaveVP *senderSlv )
seanhalle@4 563 { VSsSemReq reqData;
seanhalle@4 564
seanhalle@4 565 reqData.reqType = send_from_to;
seanhalle@4 566
seanhalle@4 567 reqData.msg = msg;
seanhalle@4 568 reqData.senderID = senderID;
seanhalle@4 569 reqData.receiverID = receiverID;
seanhalle@4 570 reqData.senderSlv = senderSlv;
seanhalle@4 571
seanhalle@4 572 reqData.nextReqInHashEntry = NULL;
seanhalle@4 573
seanhalle@4 574 VMS_WL__send_sem_request( &reqData, senderSlv );
seanhalle@4 575 }
seanhalle@4 576
seanhalle@4 577
seanhalle@4 578 //================================ receive ================================
seanhalle@4 579
seanhalle@4 580 /*The "type" version of send and receive creates a many-to-one relationship.
seanhalle@4 581 * The sender is anonymous, and many sends can stack up, waiting to be
seanhalle@4 582 * received. The same receiver can also have send from-to's
seanhalle@4 583 * waiting for it, and those will be kept separate from the "type"
seanhalle@4 584 * messages.
seanhalle@4 585 */
seanhalle@4 586 void *
seanhalle@4 587 VSs__receive_type_to( const int32 type, int32* receiverID, SlaveVP *receiverSlv )
seanhalle@4 588 { DEBUG__printf1(dbgRqstHdlr,"WL: receive type to %d",receiverID[1] );
seanhalle@4 589 VSsSemReq reqData;
seanhalle@4 590
seanhalle@4 591 reqData.reqType = receive_type_to;
seanhalle@4 592
seanhalle@4 593 reqData.msgType = type;
seanhalle@4 594 reqData.receiverID = receiverID;
seanhalle@4 595 reqData.receiverSlv = receiverSlv;
seanhalle@4 596
seanhalle@4 597 reqData.nextReqInHashEntry = NULL;
seanhalle@4 598
seanhalle@4 599 VMS_WL__send_sem_request( &reqData, receiverSlv );
seanhalle@4 600
seanhalle@4 601 return receiverSlv->dataRetFromReq;
seanhalle@4 602 }
seanhalle@4 603
seanhalle@4 604
seanhalle@4 605
seanhalle@4 606 /*Call this at the point a receiving task wants in-coming data.
seanhalle@4 607 * Use this from-to form when know senderID -- it makes a direct channel
seanhalle@4 608 * between sender and receiver.
seanhalle@4 609 */
seanhalle@4 610 void *
seanhalle@4 611 VSs__receive_from_to( int32 *senderID, int32 *receiverID, SlaveVP *receiverSlv )
seanhalle@4 612 {
seanhalle@4 613 VSsSemReq reqData;
seanhalle@4 614
seanhalle@4 615 reqData.reqType = receive_from_to;
seanhalle@4 616
seanhalle@4 617 reqData.senderID = senderID;
seanhalle@4 618 reqData.receiverID = receiverID;
seanhalle@4 619 reqData.receiverSlv = receiverSlv;
seanhalle@4 620
seanhalle@4 621 reqData.nextReqInHashEntry = NULL;
seanhalle@4 622 DEBUG__printf2(dbgRqstHdlr,"WL: receive from %d to: %d", reqData.senderID[1], reqData.receiverID[1]);
seanhalle@4 623
seanhalle@4 624 VMS_WL__send_sem_request( &reqData, receiverSlv );
seanhalle@4 625
seanhalle@4 626 return receiverSlv->dataRetFromReq;
seanhalle@4 627 }
seanhalle@4 628
seanhalle@4 629
seanhalle@4 630
seanhalle@4 631
seanhalle@2 632 //==========================================================================
seanhalle@0 633 //
seanhalle@0 634 /*A function singleton is a function whose body executes exactly once, on a
seanhalle@0 635 * single core, no matter how many times the fuction is called and no
seanhalle@0 636 * matter how many cores or the timing of cores calling it.
seanhalle@0 637 *
seanhalle@0 638 *A data singleton is a ticket attached to data. That ticket can be used
seanhalle@0 639 * to get the data through the function exactly once, no matter how many
seanhalle@0 640 * times the data is given to the function, and no matter the timing of
seanhalle@0 641 * trying to get the data through from different cores.
seanhalle@0 642 */
seanhalle@0 643
seanhalle@0 644 /*asm function declarations*/
seanhalle@2 645 void asm_save_ret_to_singleton(VSsSingleton *singletonPtrAddr);
seanhalle@2 646 void asm_write_ret_from_singleton(VSsSingleton *singletonPtrAddr);
seanhalle@0 647
seanhalle@0 648 /*Fn singleton uses ID as index into array of singleton structs held in the
seanhalle@0 649 * semantic environment.
seanhalle@0 650 */
seanhalle@0 651 void
seanhalle@3 652 VSs__start_fn_singleton( int32 singletonID, SlaveVP *animSlv )
seanhalle@0 653 {
seanhalle@2 654 VSsSemReq reqData;
seanhalle@0 655
seanhalle@0 656 //
seanhalle@0 657 reqData.reqType = singleton_fn_start;
seanhalle@0 658 reqData.singletonID = singletonID;
seanhalle@0 659
seanhalle@3 660 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@3 661 if( animSlv->dataRetFromReq ) //will be 0 or addr of label in end singleton
seanhalle@0 662 {
seanhalle@3 663 VSsSemEnv *semEnv = VMS_int__give_sem_env_for( animSlv );
seanhalle@0 664 asm_write_ret_from_singleton(&(semEnv->fnSingletons[ singletonID]));
seanhalle@0 665 }
seanhalle@0 666 }
seanhalle@0 667
seanhalle@0 668 /*Data singleton hands addr of loc holding a pointer to a singleton struct.
seanhalle@0 669 * The start_data_singleton makes the structure and puts its addr into the
seanhalle@0 670 * location.
seanhalle@0 671 */
seanhalle@0 672 void
seanhalle@3 673 VSs__start_data_singleton( VSsSingleton **singletonAddr, SlaveVP *animSlv )
seanhalle@0 674 {
seanhalle@2 675 VSsSemReq reqData;
seanhalle@0 676
seanhalle@0 677 if( *singletonAddr && (*singletonAddr)->hasFinished )
seanhalle@0 678 goto JmpToEndSingleton;
seanhalle@0 679
seanhalle@0 680 reqData.reqType = singleton_data_start;
seanhalle@0 681 reqData.singletonPtrAddr = singletonAddr;
seanhalle@0 682
seanhalle@3 683 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@3 684 if( animSlv->dataRetFromReq ) //either 0 or end singleton's return addr
seanhalle@0 685 { //Assembly code changes the return addr on the stack to the one
seanhalle@0 686 // saved into the singleton by the end-singleton-fn
seanhalle@0 687 //The return addr is at 0x4(%%ebp)
seanhalle@0 688 JmpToEndSingleton:
seanhalle@0 689 asm_write_ret_from_singleton(*singletonAddr);
seanhalle@0 690 }
seanhalle@0 691 //now, simply return
seanhalle@0 692 //will exit either from the start singleton call or the end-singleton call
seanhalle@0 693 }
seanhalle@0 694
seanhalle@0 695 /*Uses ID as index into array of flags. If flag already set, resumes from
seanhalle@0 696 * end-label. Else, sets flag and resumes normally.
seanhalle@0 697 *
seanhalle@0 698 *Note, this call cannot be inlined because the instr addr at the label
seanhalle@0 699 * inside is shared by all invocations of a given singleton ID.
seanhalle@0 700 */
seanhalle@0 701 void
seanhalle@3 702 VSs__end_fn_singleton( int32 singletonID, SlaveVP *animSlv )
seanhalle@0 703 {
seanhalle@2 704 VSsSemReq reqData;
seanhalle@0 705
seanhalle@0 706 //don't need this addr until after at least one singleton has reached
seanhalle@0 707 // this function
seanhalle@3 708 VSsSemEnv *semEnv = VMS_int__give_sem_env_for( animSlv );
seanhalle@0 709 asm_write_ret_from_singleton(&(semEnv->fnSingletons[ singletonID]));
seanhalle@0 710
seanhalle@0 711 reqData.reqType = singleton_fn_end;
seanhalle@0 712 reqData.singletonID = singletonID;
seanhalle@0 713
seanhalle@3 714 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 715
seanhalle@0 716 EndSingletonInstrAddr:
seanhalle@0 717 return;
seanhalle@0 718 }
seanhalle@0 719
seanhalle@0 720 void
seanhalle@3 721 VSs__end_data_singleton( VSsSingleton **singletonPtrAddr, SlaveVP *animSlv )
seanhalle@0 722 {
seanhalle@2 723 VSsSemReq reqData;
seanhalle@0 724
seanhalle@0 725 //don't need this addr until after singleton struct has reached
seanhalle@0 726 // this function for first time
seanhalle@0 727 //do assembly that saves the return addr of this fn call into the
seanhalle@0 728 // data singleton -- that data-singleton can only be given to exactly
seanhalle@0 729 // one instance in the code of this function. However, can use this
seanhalle@0 730 // function in different places for different data-singletons.
seanhalle@0 731 // (*(singletonAddr))->endInstrAddr = &&EndDataSingletonInstrAddr;
seanhalle@0 732
seanhalle@0 733
seanhalle@0 734 asm_save_ret_to_singleton(*singletonPtrAddr);
seanhalle@0 735
seanhalle@0 736 reqData.reqType = singleton_data_end;
seanhalle@0 737 reqData.singletonPtrAddr = singletonPtrAddr;
seanhalle@0 738
seanhalle@3 739 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 740 }
seanhalle@0 741
seanhalle@0 742 /*This executes the function in the masterVP, so it executes in isolation
seanhalle@0 743 * from any other copies -- only one copy of the function can ever execute
seanhalle@0 744 * at a time.
seanhalle@0 745 *
seanhalle@0 746 *It suspends to the master, and the request handler takes the function
seanhalle@0 747 * pointer out of the request and calls it, then resumes the VP.
seanhalle@0 748 *Only very short functions should be called this way -- for longer-running
seanhalle@0 749 * isolation, use transaction-start and transaction-end, which run the code
seanhalle@0 750 * between as work-code.
seanhalle@0 751 */
seanhalle@0 752 void
seanhalle@2 753 VSs__animate_short_fn_in_isolation( PtrToAtomicFn ptrToFnToExecInMaster,
seanhalle@3 754 void *data, SlaveVP *animSlv )
seanhalle@0 755 {
seanhalle@2 756 VSsSemReq reqData;
seanhalle@0 757
seanhalle@0 758 //
seanhalle@0 759 reqData.reqType = atomic;
seanhalle@0 760 reqData.fnToExecInMaster = ptrToFnToExecInMaster;
seanhalle@0 761 reqData.dataForFn = data;
seanhalle@0 762
seanhalle@3 763 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 764 }
seanhalle@0 765
seanhalle@0 766
seanhalle@0 767 /*This suspends to the master.
seanhalle@0 768 *First, it looks at the VP's data, to see the highest transactionID that VP
seanhalle@0 769 * already has entered. If the current ID is not larger, it throws an
seanhalle@0 770 * exception stating a bug in the code. Otherwise it puts the current ID
seanhalle@0 771 * there, and adds the ID to a linked list of IDs entered -- the list is
seanhalle@0 772 * used to check that exits are properly ordered.
seanhalle@0 773 *Next it is uses transactionID as index into an array of transaction
seanhalle@0 774 * structures.
seanhalle@0 775 *If the "VP_currently_executing" field is non-null, then put requesting VP
seanhalle@0 776 * into queue in the struct. (At some point a holder will request
seanhalle@0 777 * end-transaction, which will take this VP from the queue and resume it.)
seanhalle@0 778 *If NULL, then write requesting into the field and resume.
seanhalle@0 779 */
seanhalle@0 780 void
seanhalle@3 781 VSs__start_transaction( int32 transactionID, SlaveVP *animSlv )
seanhalle@0 782 {
seanhalle@2 783 VSsSemReq reqData;
seanhalle@0 784
seanhalle@0 785 //
seanhalle@3 786 reqData.callingSlv = animSlv;
seanhalle@0 787 reqData.reqType = trans_start;
seanhalle@0 788 reqData.transID = transactionID;
seanhalle@0 789
seanhalle@3 790 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 791 }
seanhalle@0 792
seanhalle@0 793 /*This suspends to the master, then uses transactionID as index into an
seanhalle@0 794 * array of transaction structures.
seanhalle@0 795 *It looks at VP_currently_executing to be sure it's same as requesting VP.
seanhalle@0 796 * If different, throws an exception, stating there's a bug in the code.
seanhalle@0 797 *Next it looks at the queue in the structure.
seanhalle@0 798 *If it's empty, it sets VP_currently_executing field to NULL and resumes.
seanhalle@0 799 *If something in, gets it, sets VP_currently_executing to that VP, then
seanhalle@0 800 * resumes both.
seanhalle@0 801 */
seanhalle@0 802 void
seanhalle@3 803 VSs__end_transaction( int32 transactionID, SlaveVP *animSlv )
seanhalle@0 804 {
seanhalle@2 805 VSsSemReq reqData;
seanhalle@0 806
seanhalle@0 807 //
seanhalle@3 808 reqData.callingSlv = animSlv;
seanhalle@0 809 reqData.reqType = trans_end;
seanhalle@0 810 reqData.transID = transactionID;
seanhalle@0 811
seanhalle@3 812 VMS_WL__send_sem_request( &reqData, animSlv );
seanhalle@0 813 }
seanhalle@7 814
seanhalle@7 815 //======================== Internal ==================================
seanhalle@7 816 /*
seanhalle@7 817 */
seanhalle@7 818 SlaveVP *
seanhalle@7 819 VSs__create_slave_with( TopLevelFnPtr fnPtr, void *initData,
seanhalle@7 820 SlaveVP *creatingSlv )
seanhalle@7 821 { VSsSemReq reqData;
seanhalle@7 822
seanhalle@7 823 //the semantic request data is on the stack and disappears when this
seanhalle@7 824 // call returns -- it's guaranteed to remain in the VP's stack for as
seanhalle@7 825 // long as the VP is suspended.
seanhalle@7 826 reqData.reqType = 0; //know type because in a VMS create req
seanhalle@7 827 reqData.coreToAssignOnto = -1; //means round-robin assign
seanhalle@7 828 reqData.fnPtr = fnPtr;
seanhalle@7 829 reqData.initData = initData;
seanhalle@7 830 reqData.callingSlv = creatingSlv;
seanhalle@7 831
seanhalle@7 832 VMS_WL__send_create_slaveVP_req( &reqData, creatingSlv );
seanhalle@7 833
seanhalle@7 834 return creatingSlv->dataRetFromReq;
seanhalle@7 835 }
seanhalle@7 836
seanhalle@7 837 SlaveVP *
seanhalle@7 838 VSs__create_slave_with_affinity( TopLevelFnPtr fnPtr, void *initData,
seanhalle@7 839 SlaveVP *creatingSlv, int32 coreToAssignOnto )
seanhalle@7 840 { VSsSemReq reqData;
seanhalle@7 841
seanhalle@7 842 //the semantic request data is on the stack and disappears when this
seanhalle@7 843 // call returns -- it's guaranteed to remain in the VP's stack for as
seanhalle@7 844 // long as the VP is suspended.
seanhalle@7 845 reqData.reqType = create_slave_w_aff; //not used, May 2012
seanhalle@7 846 reqData.coreToAssignOnto = coreToAssignOnto;
seanhalle@7 847 reqData.fnPtr = fnPtr;
seanhalle@7 848 reqData.initData = initData;
seanhalle@7 849 reqData.callingSlv = creatingSlv;
seanhalle@7 850
seanhalle@7 851 VMS_WL__send_create_slaveVP_req( &reqData, creatingSlv );
seanhalle@7 852
seanhalle@7 853 return creatingSlv->dataRetFromReq;
seanhalle@7 854 }
seanhalle@7 855