RTOpPack_TOpEleWiseProd.hpp

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// RTOp: Interfaces and Support Software for Vector Reduction Transformation
//       Operations
//                Copyright (2006) Sandia Corporation
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#ifndef RTOPPACK_TOP_ELE_WISE_PROD_HPP
#define RTOPPACK_TOP_ELE_WISE_PROD_HPP

#include "RTOpPack_RTOpTHelpers.hpp"

namespace RTOpPack {

template<class Scalar>
class TOpEleWiseProd : public ROpScalarTransformationBase<Scalar> {
public:
  void alpha( const Scalar& alpha ) { this->scalarData(alpha); }
  Scalar alpha() const { return this->scalarData(); }
  TOpEleWiseProd( const Scalar &alpha = Teuchos::ScalarTraits<Scalar>::one() )
    : RTOpT<Scalar>("TOpEleWiseProd"), ROpScalarTransformationBase<Scalar>(alpha) 
    {}
  void apply_op(
    const int   num_vecs,       const ConstSubVectorView<Scalar>         sub_vecs[]
    ,const int  num_targ_vecs,  const SubVectorView<Scalar>  targ_sub_vecs[]
    ,ReductTarget *reduct_obj
    ) const
    {
      RTOP_APPLY_OP_2_1(num_vecs,sub_vecs,num_targ_vecs,targ_sub_vecs);
      for( Teuchos_Index i = 0; i < subDim; ++i,  v0_val += v0_s,  v1_val += v1_s, z0_val += z0_s ) {
        *z0_val += alpha() * (*v0_val) * (*v1_val);
      }
}
}; // class TOpEleWiseProd

} // namespace RTOpPack

#endif // RTOPPACK_TOP_ELE_WISE_PROD_HPP

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