GridScalingKernelManager.h

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//
//  This file is part of VirtualFluids. VirtualFluids is free software: you can
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//=======================================================================================
#ifndef GridScalingKernelManager_H
#define GridScalingKernelManager_H
 
#include "Calculation/Calculation.h"
#include <basics/PointerDefinitions.h>
 
#include <logger/Logger.h>
#include <functional>
#include <memory>
#include <stdexcept>
 
struct CUstream_st;
 
namespace vf::gpu {
 
class Parameter;
class CudaMemoryManager;
class GridScalingFactory;
enum class CudaStreamIndex;
struct LBMSimulationParameter;
 
using gridScaling =
    std::function<void(LBMSimulationParameter *, LBMSimulationParameter *, ICells *, ICellNeigh &, CUstream_st *stream)>;
 
class GridScalingKernelManager
{
public:
    GridScalingKernelManager(SPtr<Parameter> parameter, GridScalingFactory *gridScalingFactory);
 
    void runFineToCoarseKernelLB(const int level, InterpolationCells *fineToCoarse, ICellNeigh &neighborFineToCoarse, CudaStreamIndex streamIndex) const;
 
    void runCoarseToFineKernelLB(const int level, InterpolationCells *coarseToFine, ICellNeigh &neighborCoarseToFine, CudaStreamIndex streamIndex) const;
 
private:
    void checkScalingFunction(const gridScaling &scalingFunction, const InterpolationCells &scalingStruct,
                              const std::string &scalingName)
    {
        if (!scalingFunction && scalingStruct.numberOfCells > 0)
            throw std::runtime_error("The scaling function " + scalingName + " was not set!");
        if (scalingFunction && scalingStruct.numberOfCells == 0)
            VF_LOG_WARNING("The scaling function {} was set, although there is no refinement", scalingName);
    }
 
    SPtr<Parameter> para;
 
    gridScaling scalingFineToCoarse = nullptr;
    gridScaling scalingCoarseToFine = nullptr;
    gridScaling scalingFineToCoarseAD = nullptr;
    gridScaling scalingCoarseToFineAD = nullptr;
};
 
}
 
#endif