GridScalingKernelManager.cpp

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//
//  This file is part of VirtualFluids. VirtualFluids is free software: you can
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//  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
//  for more details.
//
//  SPDX-License-Identifier: GPL-3.0-or-later
//  SPDX-FileCopyrightText: Copyright © VirtualFluids Project contributors, see AUTHORS.md in root folder
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//=======================================================================================
#include "GridScaling/GridScalingKernelManager.h"
#include "Cuda/CudaMemoryManager.h"
 
#include <logger/Logger.h>
#include "Parameter/Parameter.h"
#include "Cuda/CudaStreamManager.h"
#include "PreCollisionInteractor/PreCollisionInteractor.h"
#include "GridScaling/GridScalingFactory.h"
#include <stdexcept>
#include "GridScaling/Scaling.cuh"
 
namespace vf::gpu {
 
GridScalingKernelManager::GridScalingKernelManager(SPtr<Parameter> parameter, GridScalingFactory *gridScalingFactory)
    : para(parameter)
{
    if(para->getMaxLevel() != 0){
        if(!gridScalingFactory){
            throw std::runtime_error("There is more than one level, but no scalingFactory was provided.");
        }
        checkScalingFunction(gridScalingFactory->getGridScalingFC(parameter->getUseTurbulentViscosity()), this->para->getParD(0)->fineToCoarse, "scalingFineToCoarse");
        checkScalingFunction(gridScalingFactory->getGridScalingCF(parameter->getUseTurbulentViscosity()), this->para->getParD(0)->coarseToFine, "scalingCoarseToFine");
        this->scalingFineToCoarse = gridScalingFactory->getGridScalingFC(parameter->getUseTurbulentViscosity());
        this->scalingCoarseToFine = gridScalingFactory->getGridScalingCF(parameter->getUseTurbulentViscosity());
        if (para->getDiffOn())
        {
            this->scalingFineToCoarseAD = gridScalingFactory->getGridScalingAdvectionDiffusionFC(parameter->getUseTurbulentDiffusivity());
            this->scalingCoarseToFineAD = gridScalingFactory->getGridScalingAdvectionDiffusionCF(parameter->getUseTurbulentDiffusivity());
        }
    }
    
    if(this->scalingFineToCoarse == nullptr)
        VF_LOG_TRACE("Function for scalingFineToCoarse is nullptr");
    if(this->scalingCoarseToFine == nullptr)
        VF_LOG_TRACE("Function for scalingCoarseToFine is nullptr");
 
    if (para->getDiffOn())
    {
        if (this->scalingFineToCoarseAD == nullptr)
            VF_LOG_TRACE("Function for scalingFineToCoarseAD is nullptr");
        if (this->scalingCoarseToFineAD == nullptr)
            VF_LOG_TRACE("Function for scalingCoarseToFineAD is nullptr");
    }
}
 
void GridScalingKernelManager::runFineToCoarseKernelLB(const int level, InterpolationCells *fineToCoarse, ICellNeigh &neighborFineToCoarse, CudaStreamIndex streamIndex) const
{
    cudaStream_t stream = para->getStreamManager()->getStream(streamIndex);
    this->scalingFineToCoarse(para->getParD(level).get(), para->getParD(level+1).get(), fineToCoarse, neighborFineToCoarse, stream);
    if (para->getDiffOn())
        this->scalingFineToCoarseAD(para->getParD(level).get(), para->getParD(level+1).get(), fineToCoarse, neighborFineToCoarse, stream);
}
 
void GridScalingKernelManager::runCoarseToFineKernelLB(const int level, InterpolationCells* coarseToFine, ICellNeigh &neighborCoarseToFine, CudaStreamIndex streamIndex) const
{
    cudaStream_t stream = para->getStreamManager()->getStream(streamIndex);
    this->scalingCoarseToFine(para->getParD(level).get(), para->getParD(level+1).get(), coarseToFine, neighborCoarseToFine, stream);
    if (para->getDiffOn())
        this->scalingCoarseToFineAD(para->getParD(level).get(), para->getParD(level+1).get(), coarseToFine, neighborCoarseToFine, stream);
}
 
}