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;
}
}
