Esempi in C++ (Cpp) per AdvancePhotonPath

Esempio n. 1

void Worker::ProcessIterations(PPM* engine) {

  u_int64_t photonPerIteration = engine->photonsFirstIteration;

  uint iterationCount;

  resetRayBuffer();

  UpdateBBox();
  LookupSetHitPoints(hitPointsStaticInfo_iterationCopy, hitPoints_iterationCopy);

  uint iter = 0;
  double previousIterTime = WallClockTime();
  fprintf(stdout, "iteration, photons_iter, photons_total, photons_sec, total_time, radius, device\n");
  while (iter < config->max_iters) {
    ++iter;

    double start = WallClockTime();

    iterationCount = engine->IncIteration();

    if (engine->GetIterationNumber() > MAX_ITERATIONS) {
      break;
    }


    photonPerIteration = engine->photonsFirstIteration;

#if defined USE_SPPMPA || defined USE_SPPM
    BuildHitPoints(iterationCount);
    UpdateBBox();

#endif

#if defined USE_SPPM || defined USE_PPM
    if (iterationCount == 1)
      InitRadius(iterationCount);
#else
    InitRadius(iterationCount);
#endif

    updateDeviceHitPoints();

    ReHash(currentPhotonRadius2);//argument ignored in non-PA

    updateDeviceLookupAcc();

    photonPerIteration = AdvancePhotonPath(photonPerIteration);


    getDeviceHitpoints();

#if defined USE_PPM
    AccumulateFluxPPM(iterationCount, photonPerIteration);
#endif
#if defined USE_SPPM
    AccumulateFluxSPPM(iterationCount, photonPerIteration);
#endif
#if defined USE_SPPMPA
    AccumulateFluxSPPMPA(iterationCount, photonPerIteration);
#endif
#if defined USE_PPMPA
    AccumulateFluxPPMPA(iterationCount, photonPerIteration);
#endif

    UpdateSampleFrameBuffer(photonPerIteration);

    /**
     * iteration lock required in PhotonTracedTotal
     */
    engine->incPhotonTracedTotal(photonPerIteration);

    //PushHitPoints();

    profiler->additeratingTime(WallClockTime() - start);
    profiler->addIteration(1);

    if (profiler->iterationCount % 100 == 0)
      profiler->printStats(deviceID);

//    if (iterationCount % 50 == 0)
//      engine->SaveImpl(to_string<uint> (iterationCount, std::dec) + engine->fileName);


#if defined USE_SPPM || defined USE_PPM
    const float radius = hitPoints_iterationCopy[0].accumPhotonRadius2;
#else
    const float radius = currentPhotonRadius2;
#endif
    const double time = WallClockTime();
    const double totalTime = time - engine->startTime;
    const double iterTime = time - previousIterTime;
//    const float itsec = engine->GetIterationNumber() / totalTime;

    const uint photonTotal = engine->getPhotonTracedTotal();
    const float photonSec   = photonTotal / (totalTime * 1000.f);
    fprintf(stdout, "%d, %lu, %u, %f, %f, %f, %f, %d\n", iterationCount, photonPerIteration, photonTotal, photonSec, iterTime, totalTime, radius, getDeviceID());
    previousIterTime = time;

  }

}

Esempio n. 2

void Worker::ProcessIterations(PPM* engine) {

  u_int64_t photonPerIteration = engine->photonsFirstIteration;

  uint iterationCount;

  resetRayBuffer();

  UpdateBBox();
  while (!boost::this_thread::interruption_requested()) {

    double start = WallClockTime();

    if (engine->GetIterationNumber() > config->max_iters) {
      break;
    }

    iterationCount = engine->IncIteration();

    photonPerIteration = engine->photonsFirstIteration;

// #if defined USE_SPPMPA || defined USE_SPPM
    BuildHitPoints(iterationCount);
    UpdateBBox();

// #endif

// #if defined USE_SPPM || defined USE_PPM
//     if (iterationCount == 1)
//     InitRadius(iterationCount);
// #else
    InitRadius(iterationCount);
// #endif
    updateDeviceHitPoints();
#ifndef REBUILD_HASH
    if (iterationCount == 1)
#endif
      ReHash(currentPhotonRadius2);//argument ignored in non-PA
#ifndef REBUILD_HASH
    if (iterationCount == 1)
#endif
      updateDeviceLookupAcc();

    photonPerIteration = AdvancePhotonPath(photonPerIteration);

// #if defined USE_PPM
//     getDeviceHitpoints();
//     AccumulateFluxPPM(iterationCount, photonPerIteration);

// #endif
// #if defined USE_SPPM
//     AccumulateFluxSPPM(iterationCount, photonPerIteration);
// #endif
// #if defined USE_SPPMPA
    AccumulateFluxSPPMPA(iterationCount, photonPerIteration);
// #endif
// #if defined USE_PPMPA
//     AccumulateFluxPPMPA(iterationCount, photonPerIteration);

//     getDeviceHitpoints();

// #endif
    UpdateSampleFrameBuffer(photonPerIteration);

    /**
     * iteration lock required in PhotonTracedTotal
     */
    engine->incPhotonTracedTotal(photonPerIteration);

    profiler->additeratingTime(WallClockTime() - start);
    profiler->addIteration(1);

    //if (profiler->iterationCount % 20 == 0)
    //  profiler->printStats(deviceID);

    //if (iterationCount % 100 == 0)
    //  engine->SaveImpl(to_string<uint> (iterationCount, std::dec) + engine->fileName);
    printf("iteration %d finished\n", iterationCount);
  }

  //profiler->printStats(deviceID);

}