void
ConstructGrid (long my_id, time_info *local_time, long time_all)
{
unsigned long init = 0, start = 0, finish;
if (time_all)
CLOCK(init);
DetermineGridSize(my_id); /* Finds the four corners of the grid. */
FreeBoxes(my_id);
InitPartition(my_id);
if (time_all)
CLOCK(start);
if (MY_NUM_PARTICLES > 0) {
ConstructLocalGrid(my_id); /* Each processor constructs their own tree
based on only their particles */
MergeLocalGrid(my_id); /* The processors combine their trees into one
global tree. This step contains
communication between processors. */
}
BARRIER(G_Memory->synch, Number_Of_Processors);
CleanupGrid(my_id);
if (time_all)
CLOCK(finish);
if (time_all) {
local_time[MY_TIME_STEP].other_time = start - init;
local_time[MY_TIME_STEP].construct_time = finish - start;
}
}
void
CostZones (long my_id)
{
PartitionIterate(my_id, ComputeSubTreeCosts, BOTTOM);
{
#line 50
unsigned long Error, Cycle;
#line 50
long Cancel, Temp;
#line 50
#line 50
Error = pthread_mutex_lock(&(G_Memory->synch).mutex);
#line 50
if (Error != 0) {
#line 50
printf("Error while trying to get lock in barrier.\n");
#line 50
exit(-1);
#line 50
}
#line 50
#line 50
Cycle = (G_Memory->synch).cycle;
#line 50
if (++(G_Memory->synch).counter != (Number_Of_Processors)) {
#line 50
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &Cancel);
#line 50
while (Cycle == (G_Memory->synch).cycle) {
#line 50
Error = pthread_cond_wait(&(G_Memory->synch).cv, &(G_Memory->synch).mutex);
#line 50
if (Error != 0) {
#line 50
break;
#line 50
}
#line 50
}
#line 50
pthread_setcancelstate(Cancel, &Temp);
#line 50
} else {
#line 50
(G_Memory->synch).cycle = !(G_Memory->synch).cycle;
#line 50
(G_Memory->synch).counter = 0;
#line 50
Error = pthread_cond_broadcast(&(G_Memory->synch).cv);
#line 50
}
#line 50
pthread_mutex_unlock(&(G_Memory->synch).mutex);
#line 50
};
Local[my_id].Total_Work = Grid->subtree_cost;
Local[my_id].Min_Work = ((Local[my_id].Total_Work / Number_Of_Processors)
* my_id);
if (my_id == (Number_Of_Processors - 1))
Local[my_id].Max_Work = Local[my_id].Total_Work;
else
Local[my_id].Max_Work = (Local[my_id].Min_Work
+ (Local[my_id].Total_Work
/ Number_Of_Processors));
InitPartition(my_id);
CostZonesHelper(my_id, Grid, 0, RIGHT);
{
#line 62
unsigned long Error, Cycle;
#line 62
long Cancel, Temp;
#line 62
#line 62
Error = pthread_mutex_lock(&(G_Memory->synch).mutex);
#line 62
if (Error != 0) {
#line 62
printf("Error while trying to get lock in barrier.\n");
#line 62
exit(-1);
#line 62
}
#line 62
#line 62
Cycle = (G_Memory->synch).cycle;
#line 62
if (++(G_Memory->synch).counter != (Number_Of_Processors)) {
#line 62
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &Cancel);
#line 62
while (Cycle == (G_Memory->synch).cycle) {
#line 62
Error = pthread_cond_wait(&(G_Memory->synch).cv, &(G_Memory->synch).mutex);
#line 62
if (Error != 0) {
#line 62
break;
#line 62
}
#line 62
}
#line 62
pthread_setcancelstate(Cancel, &Temp);
#line 62
} else {
#line 62
(G_Memory->synch).cycle = !(G_Memory->synch).cycle;
#line 62
(G_Memory->synch).counter = 0;
#line 62
Error = pthread_cond_broadcast(&(G_Memory->synch).cv);
#line 62
}
#line 62
pthread_mutex_unlock(&(G_Memory->synch).mutex);
#line 62
};
}
