Eigen::internal::tribb_kernel< LhsScalar, RhsScalar, Index, mr, nr, ConjLhs, ConjRhs, UpLo > Struct Template Reference

#include <GeneralMatrixMatrixTriangular.h>

List of all members.

Public Types
enum	{ BlockSize = meta_least_common_multiple<EIGEN_PLAIN_ENUM_MAX(mr,nr),EIGEN_PLAIN_ENUM_MIN(mr,nr)>::ret }
typedef gebp_traits< LhsScalar, RhsScalar, ConjLhs, ConjRhs >	Traits
typedef Traits::ResScalar	ResScalar
Public Member Functions
void	operator() (ResScalar *_res, Index resStride, const LhsScalar *blockA, const RhsScalar *blockB, Index size, Index depth, const ResScalar &alpha)

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Detailed Description

template<typename LhsScalar, typename RhsScalar, typename Index, int mr, int nr, bool ConjLhs, bool ConjRhs, int UpLo>
struct Eigen::internal::tribb_kernel< LhsScalar, RhsScalar, Index, mr, nr, ConjLhs, ConjRhs, UpLo >

Definition at line 137 of file GeneralMatrixMatrixTriangular.h.

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Member Typedef Documentation

template<typename LhsScalar, typename RhsScalar, typename Index, int mr, int nr, bool ConjLhs, bool ConjRhs, int UpLo>

typedef Traits::ResScalar Eigen::internal::tribb_kernel< LhsScalar, RhsScalar, Index, mr, nr, ConjLhs, ConjRhs, UpLo >::ResScalar

Definition at line 140 of file GeneralMatrixMatrixTriangular.h.

template<typename LhsScalar, typename RhsScalar, typename Index, int mr, int nr, bool ConjLhs, bool ConjRhs, int UpLo>

typedef gebp_traits<LhsScalar,RhsScalar,ConjLhs,ConjRhs> Eigen::internal::tribb_kernel< LhsScalar, RhsScalar, Index, mr, nr, ConjLhs, ConjRhs, UpLo >::Traits

Definition at line 139 of file GeneralMatrixMatrixTriangular.h.

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Member Enumeration Documentation

template<typename LhsScalar, typename RhsScalar, typename Index, int mr, int nr, bool ConjLhs, bool ConjRhs, int UpLo>

anonymous enum

Enumerator:

BlockSize

Definition at line 142 of file GeneralMatrixMatrixTriangular.h.

       {
    BlockSize  = meta_least_common_multiple<EIGEN_PLAIN_ENUM_MAX(mr,nr),EIGEN_PLAIN_ENUM_MIN(mr,nr)>::ret
  };

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Member Function Documentation

template<typename LhsScalar, typename RhsScalar, typename Index, int mr, int nr, bool ConjLhs, bool ConjRhs, int UpLo>

void Eigen::internal::tribb_kernel< LhsScalar, RhsScalar, Index, mr, nr, ConjLhs, ConjRhs, UpLo >::operator()	(	ResScalar *	_res,
		Index	resStride,
		const LhsScalar *	blockA,
		const RhsScalar *	blockB,
		Index	size,
		Index	depth,
		const ResScalar &	alpha
	)		[inline]

Definition at line 145 of file GeneralMatrixMatrixTriangular.h.

  {
    typedef blas_data_mapper<ResScalar, Index, ColMajor> ResMapper;
    ResMapper res(_res, resStride);
    gebp_kernel<LhsScalar, RhsScalar, Index, ResMapper, mr, nr, ConjLhs, ConjRhs> gebp_kernel;

    Matrix<ResScalar,BlockSize,BlockSize,ColMajor> buffer;

    // let's process the block per panel of actual_mc x BlockSize,
    // again, each is split into three parts, etc.
    for (Index j=0; j<size; j+=BlockSize)
    {
      Index actualBlockSize = std::min<Index>(BlockSize,size - j);
      const RhsScalar* actual_b = blockB+j*depth;

      if(UpLo==Upper)
        gebp_kernel(res.getSubMapper(0, j), blockA, actual_b, j, depth, actualBlockSize, alpha,
                    -1, -1, 0, 0);

      // selfadjoint micro block
      {
        Index i = j;
        buffer.setZero();
        // 1 - apply the kernel on the temporary buffer
        gebp_kernel(ResMapper(buffer.data(), BlockSize), blockA+depth*i, actual_b, actualBlockSize, depth, actualBlockSize, alpha,
                    -1, -1, 0, 0);
        // 2 - triangular accumulation
        for(Index j1=0; j1<actualBlockSize; ++j1)
        {
          ResScalar* r = &res(i, j + j1);
          for(Index i1=UpLo==Lower ? j1 : 0;
              UpLo==Lower ? i1<actualBlockSize : i1<=j1; ++i1)
            r[i1] += buffer(i1,j1);
        }
      }

      if(UpLo==Lower)
      {
        Index i = j+actualBlockSize;
        gebp_kernel(res.getSubMapper(i, j), blockA+depth*i, actual_b, size-i, 
                    depth, actualBlockSize, alpha, -1, -1, 0, 0);
      }
    }
  }

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The documentation for this struct was generated from the following file:

• GeneralMatrixMatrixTriangular.h