Пример #1
0
nanos_err_t nanos_wg_wait_completion ( nanos_wg_t uwg )
{
   NANOS_INSTRUMENT( InstrumentStateAndBurst inst("api","wg_wait_completion",NANOS_SYNCHRONIZATION) );

   try {
      WG *wg = ( WG * )uwg;
      wg->waitCompletion();
   } catch ( ... ) {
      return NANOS_UNKNOWN_ERR;
   }

   return NANOS_OK;
}
int main ( int argc, char **argv )
{
   int i;
   bool check = true;

   main__loop_1_data_t _loop_data;

   // Repeat the test NUM_RUNS times
   for ( int testNumber = 0; testNumber < NUM_RUNS; ++testNumber ) {
      A = 0;
   
      WG *wg = getMyThreadSafe()->getCurrentWD();   
      // Stop scheduler
      sys.stopScheduler();
      // increment variable
      for ( i = 0; i < NUM_ITERS; i++ ) {
         // Work descriptor creation
         WD * wd = new WD( new SMPDD( main__loop_1 ), sizeof( _loop_data ), __alignof__(nanos_loop_info_t), ( void * ) &_loop_data );
         wd->setPriority( 100 );
   
         // Work Group affiliation
         wg->addWork( *wd );
   
         // Work submission
         sys.submit( *wd );
      }
      // Re-enable the scheduler
      sys.startScheduler();
      // barrier (kind of)
      wg->waitCompletion();
      
   
      /*
       * The verification criteria is that A is equal to the number of tasks
       * run. Should A be lower, that would indicate that not all tasks
       * successfuly finished.
       */
      if ( A.value() != NUM_ITERS ) check = false;
   }

   if ( check ) {
      fprintf(stderr, "%s : %s\n", argv[0], "successful");
      return 0;
   }
   else {
      fprintf(stderr, "%s: %s\n", argv[0], "unsuccessful");
      return -1;
   }
}
int main ( int argc, char **argv )
{
   int i;
   bool check = true;

   main__loop_1_data_t _loop_data;

   // initialize vector
   for ( i = 0; i < VECTOR_SIZE; i++ ) A[i] = 0;

   // Stop scheduler
   sys.stopScheduler();
   sys.waitUntilThreadsPaused();
   WG *wg = getMyThreadSafe()->getCurrentWD();
   // increment vector
   for ( i = 0; i < NUM_ITERS; i++ ) {
#if USE_NANOS
      // loop info initialization
      _loop_data.loop_info.lower = 0;
      _loop_data.loop_info.upper = VECTOR_SIZE;
      _loop_data.loop_info.step = + 1;

      // Work descriptor creation
      WD * wd = new WD( new SMPDD( main__loop_1 ), sizeof( _loop_data ), __alignof__(nanos_loop_info_t), ( void * ) &_loop_data );
      wd->setPriority( 100 );

      // Work Group affiliation
      wg->addWork( *wd );

      // Work submission
      sys.submit( *wd );

#else
      for ( int j = 0; j < VECTOR_SIZE; j++ ) A[j] += 100;
#endif
   }
   for ( i = 0; i < sys.getNumWorkers(); ++i )
   {
#if USE_NANOS
      // Second task: set to 0
      WD* wd = new WD( new SMPDD( main__loop_2 ), sizeof( _loop_data ), __alignof__(nanos_loop_info_t), ( void * ) &_loop_data );
      // Use a higher priority
      wd->setPriority( 150 );
      wg->addWork( *wd );
      // Work submission
      sys.submit( *wd );

#else
      for ( int j = 0; j < VECTOR_SIZE; j++ ) A[j] = 0;
#endif
   }
   // Re-enable the scheduler
   sys.startScheduler();
   sys.waitUntilThreadsUnpaused();

   
   // barrier (kind of)
   wg->waitCompletion();
   

   /*
    * Verification criteria: The priority scheduler must ensure that the
    * highest priority task that was submitted the latest is executed before
    * at least one lower priority task.
    * In this case, as the highest priority task sets the elements in the A
    * array to 0, it is as simple as checking if that's the value at the end of
    * the execution. If it is, the test failed, otherwise, succeeded.
    */
   for ( i = 0; i < VECTOR_SIZE; i++ ) if ( A[i] == 0 ) check = false;

   if ( check ) {
      fprintf(stderr, "%s : %s\n", argv[0], "successful");
      return 0;
   }
   else {
      fprintf(stderr, "%s: %s\n", argv[0], "unsuccessful");
      return -1;
   }
}