Intrepid2_DataTools.hpp

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#ifndef Intrepid2_DataTools_h
#define Intrepid2_DataTools_h

#include "Intrepid2_Data.hpp"

namespace Intrepid2 {

class DataTools
{
public:
  template<class Scalar, class DeviceType>
  static void multiplyByCPWeights(Data<Scalar,DeviceType> &resultMatrixData, const Data<Scalar,DeviceType> &matrixDataIn, const Data<Scalar,DeviceType> &scalarDataIn)
  {
    const ordinal_type rank      = scalarDataIn.rank();
    auto extents                 = scalarDataIn.getExtents();
    auto variationTypes          = scalarDataIn.getVariationTypes();
    extents[rank]                = matrixDataIn.extent_int(rank);
    extents[rank+1]              = matrixDataIn.extent_int(rank+1);
    variationTypes[rank]         = CONSTANT;
    variationTypes[rank+1]       = CONSTANT;
    
    auto scalarDataInExtended = scalarDataIn.shallowCopy(rank + 2, extents, variationTypes);
    resultMatrixData.storeInPlaceProduct(matrixDataIn,scalarDataInExtended);
  }
  
  template<class Scalar, class DeviceType>
  static Data<Scalar,DeviceType> multiplyByCPWeights(const Data<Scalar,DeviceType> &matrixDataIn, const Data<Scalar,DeviceType> &scalarDataIn)
  {
    const ordinal_type rank      = scalarDataIn.rank();
    auto extents                 = scalarDataIn.getExtents();
    auto variationTypes          = scalarDataIn.getVariationTypes();
    extents[rank]                = matrixDataIn.extent_int(rank);
    extents[rank+1]              = matrixDataIn.extent_int(rank+1);
    variationTypes[rank]         = CONSTANT;
    variationTypes[rank+1]       = CONSTANT;
    
    auto scalarDataInExtended = scalarDataIn.shallowCopy(rank + 2, extents, variationTypes);
    
    auto result = Data<Scalar,DeviceType>::allocateInPlaceCombinationResult(scalarDataInExtended, matrixDataIn);
    
    result.storeInPlaceProduct(matrixDataIn,scalarDataInExtended);
    return result;
  }
};
}

#endif /* Intrepid2_DataTools_h */