void monteCarloKernel (int n, float* samplePrices, float* sampleWeights, float dt, mt19937state* randStates, monteCarloOptionStruct optionStruct)
{
int i;
#pragma acc data copyin (randStates[0:n]), copyout (samplePrices[0:n], sampleWeights[0:n])
{
#pragma acc kernels pcopyin (randStates[0:n]), pcopyout (samplePrices[0:n], sampleWeights[0:n])
{
#pragma acc loop independent
for (i = 0; i < n; ++i)
{
float path[SEQUENCE_LENGTH];
initializePath (path);
int optionStructNum = 0;
getPath (path, i, dt, randStates, optionStruct);
float price = getPrice (path [SEQUENCE_LENGTH-1]);
samplePrices [i] = price;
sampleWeights [i] = DEFAULT_SEQ_WEIGHT;
}
}
}
}
void Field::setPath(word character_offset, word target_coord_xw, word target_coord_yw, bool use_alternative)
{
if (option->game_type != GAME_NANPA2) {
return;
}
if (is_path_found) {
is_path_found = false;
return;
}
word character_coord_xw = data->queryWord(character_offset + CHARACTER_COORD_XW);
word character_coord_yw = data->queryWord(character_offset + CHARACTER_COORD_YW);
word start_offset = calculatePathOffset(character_coord_xw, character_coord_yw);
word target_offset = calculatePathOffset(target_coord_xw, target_coord_yw);
// initialize path
initializePath(character_offset);
if (data->queryByte(target_offset) != PATH_MARK_CLOSED) {
data->writeByte(start_offset, PATH_MARK_CHARACTER);
if ((generatePath(character_offset, target_coord_xw, target_coord_yw, PATH_MARK_INITIAL, PATH_SEQUENCE_DEFAULT) == false)) {
data->writeByte(start_offset, PATH_MARK_CLOSED);
}
//TODO: remove this
//DUMPPATH;
if (data->queryByte(target_offset) < PATH_MARK_OPENED) {
is_path_found = true;
return;
}
}
if (use_alternative) {
//TODO: implement alternative pathfinding method
}
is_path_found = false;
return;
}
void monteCarloKernelCpu(int n, float* samplePrices, float* sampleWeights, float dt, mt19937state* randStates, monteCarloOptionStruct optionStruct)
{
int i;
for (i = 0; i < n; ++i)
{
float path[SEQUENCE_LENGTH];
initializePath (path);
int optionStructNum = 0;
getPath (path, i, dt, randStates, optionStruct);
float price = getPrice (path [SEQUENCE_LENGTH-1]);
samplePrices [i] = price;
sampleWeights [i] = DEFAULT_SEQ_WEIGHT;
}
}
