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C++ tensor_type::num_j方法代码示例

本文整理汇总了C++中tensor_type::num_j方法的典型用法代码示例。如果您正苦于以下问题:C++ tensor_type::num_j方法的具体用法?C++ tensor_type::num_j怎么用?C++ tensor_type::num_j使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在tensor_type的用法示例。


在下文中一共展示了tensor_type::num_j方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: apply

  KOKKOS_INLINE_FUNCTION
  static void apply( const tensor_type & tensor ,
                     const MatrixValue * const a ,
                     const VectorValue * const x ,
                           VectorValue * const y )
  {
    const size_type nk = tensor.num_k();

    // Loop over k
    for ( size_type k = 0; k < nk; ++k) {
      const MatrixValue ak = a[k];
      const VectorValue xk = x[k];

      // Loop over j for this k
      const size_type nj = tensor.num_j(k);
      const size_type jBeg = tensor.j_begin(k);
      const size_type jEnd = jBeg + nj;
      for (size_type jEntry = jBeg; jEntry < jEnd; ++jEntry) {
        const size_type j = tensor.j_coord(jEntry);
        VectorValue tmp = a[j] * xk + ak * x[j];

        // Loop over i for this k,j
        const size_type ni = tensor.num_i(jEntry);
        const size_type iBeg = tensor.i_begin(jEntry);
        const size_type iEnd = iBeg + ni;
        for (size_type iEntry = iBeg; iEntry < iEnd; ++iEntry) {
          const size_type i = tensor.i_coord(iEntry);
          y[i] += tensor.value(iEntry) * tmp;
        }
      }
    }
  }
开发者ID:agrippa,项目名称:Trilinos,代码行数:32,代码来源:Stokhos_FlatSparse3Tensor_kji.hpp

示例2: apply

    static void apply( const tensor_type & tensor ,
                       const MatrixValue * const a ,
                       const VectorValue * const x ,
                       VectorValue * const y )
    {

        const size_type nDim = tensor.dimension();

        // Loop over i
        for ( size_type i = 0; i < nDim; ++i) {
            VectorValue ytmp = 0;

            // Loop over k for this i
            const size_type nk = tensor.num_k(i);
            const size_type kBeg = tensor.k_begin(i);
            const size_type kEnd = kBeg + nk;
            for (size_type kEntry = kBeg; kEntry < kEnd; ++kEntry) {
                const size_type k = tensor.k_coord(kEntry);
                const MatrixValue ak = a[k];
                const VectorValue xk = x[k];

                // Loop over j for this i,k
                const size_type nj = tensor.num_j(kEntry);
                const size_type jBeg = tensor.j_begin(kEntry);
                const size_type jEnd = jBeg + nj;
                for (size_type jEntry = jBeg; jEntry < jEnd; ++jEntry) {
                    const size_type j = tensor.j_coord(jEntry);
                    ytmp += tensor.value(jEntry) * ( a[j] * xk + ak * x[j] );
                }
            }

            y[i] += ytmp ;
        }
    }
开发者ID:,项目名称:,代码行数:34,代码来源:


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