unsigned long long parTreeSearch(int depth, Node *parent, int numChildren)
{
if (depth >= bots_cutoff_value) {
return serTreeSearch(depth, parent, numChildren);
}
Node n[numChildren], *nodePtr;
int i, j;
unsigned long long subtreesize = 1, partialCount[numChildren];
// Recurse on the children
for (i = 0; i < numChildren; i++) {
nodePtr = &n[i];
nodePtr->height = parent->height + 1;
// The following line is the work (one or more SHA-1 ops)
for (j = 0; j < computeGranularity; j++) {
rng_spawn(parent->state.state, nodePtr->state.state, i);
}
nodePtr->numChildren = uts_numChildren(nodePtr);
#pragma omp task untied firstprivate(i, nodePtr) shared(partialCount)
partialCount[i] = parTreeSearch(depth+1, nodePtr, nodePtr->numChildren);
}
#pragma omp taskwait
for (i = 0; i < numChildren; i++) {
subtreesize += partialCount[i];
}
return subtreesize;
}
counter_t serial_uts ( Node *root )
{
counter_t num_nodes;
bots_message("Computing Unbalance Tree Search algorithm ");
num_nodes = serTreeSearch( 0, root, uts_numChildren(root) );
bots_message(" completed!\n");
return num_nodes;
}
unsigned long long serTreeSearch(int depth, Node *parent, int numChildren)
{
unsigned long long subtreesize = 1, partialCount[numChildren];
Node n[numChildren];
int i, j;
// Recurse on the children
for (i = 0; i < numChildren; i++) {
n[i].height = parent->height + 1;
// The following line is the work (one or more SHA-1 ops)
for (j = 0; j < computeGranularity; j++) {
rng_spawn(parent->state.state, n[i].state.state, i);
}
partialCount[i] = serTreeSearch(depth+1, &n[i], uts_numChildren(&n[i]));
}
// computing total size
for (i = 0; i < numChildren; i++) subtreesize += partialCount[i];
return subtreesize;
}