void runPeer(igcl::Peer * peer)
{
peer->start();
Raytracer raytracer;
raytracer.setupScene(); // setup scene objects
timeval globalIni, end;
gettimeofday(&globalIni, NULL);
imageSize = IMAGE_HEIGHT*IMAGE_WIDTH;
while (1)
{
uint startIndex = 0;
igcl::result_type res = peer->waitRecvFrom(0, startIndex);
if (res != igcl::SUCCESS)
break;
//std::cout << "received " << startIndex << endl;
uint nIndexes = std::min(blockSize, imageSize-startIndex);
uint endIndex = startIndex + nIndexes;
color_s_char array[nIndexes];
for (uint i=startIndex; i<endIndex; ++i) {
int row = i / IMAGE_WIDTH;
int col = i % IMAGE_WIDTH;
const color_s & c = raytracer.castRayFromScreen(row, col); // calculate color of pixel (CPU-HEAVY)
array[i-startIndex] = color_s_char(c);
}
peer->sendTo(0, array+0, nIndexes);
}
gettimeofday(&end, NULL);
cout << "total time:\t" << timeDiff(globalIni, end) << " ms\n";
peer->hang();
}
void runCoordinator(igcl::Coordinator * node)
{
const uint blockSize = 10000;
Raytracer raytracer;
raytracer.setupScene(); // setup scene objects
for (int t=0; t<30; t++) {
timeval iniTime;
start(iniTime);
//#pragma omp parallel for num_threads(N_THREADS)
#pragma omp parallel for schedule(dynamic, 10000) num_threads(N_THREADS)
for (uint i=0; i<imageSize; i++)
{
int row = i / IMAGE_WIDTH;
int col = i % IMAGE_WIDTH;
color_s c = raytracer.castRayFromScreen(row, col); // calculate color of pixel (CPU-HEAVY)
image->setPixel(row, col, c.r, c.g, c.b);
}
finish(iniTime);
}
}
