Op_dotext

//! More...

Classes
class	op_dotext
Functions
template<typename eT >
static eT	op_dotext::direct_rowvec_mat_colvec (const eT *A_mem, const Mat< eT > &B, const eT *C_mem)
template<typename eT >
static eT	op_dotext::direct_rowvec_transmat_colvec (const eT *A_mem, const Mat< eT > &B, const eT *C_mem)
template<typename eT >
static eT	op_dotext::direct_rowvec_diagmat_colvec (const eT *A_mem, const Mat< eT > &B, const eT *C_mem)
template<typename eT >
static eT	op_dotext::direct_rowvec_invdiagmat_colvec (const eT *A_mem, const Mat< eT > &B, const eT *C_mem)
template<typename eT >
static eT	op_dotext::direct_rowvec_invdiagvec_colvec (const eT *A_mem, const Mat< eT > &B, const eT *C_mem)

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Detailed Description

//!

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Function Documentation

template<typename eT >

eT op_dotext::direct_rowvec_mat_colvec	(	const eT *	A_mem,
		const Mat< eT > &	B,
		const eT *	C_mem
	)			[inline, static, inherited]

Definition at line 26 of file op_dotext_meat.hpp.

References Mat< eT >::at(), Mat< eT >::colptr(), op_dot::direct_dot(), podarray< eT >::mem, Mat< eT >::n_cols, and Mat< eT >::n_rows.

Referenced by as_scalar_redirect< 3 >::apply().

  {
  arma_extra_debug_sigprint();
  
  const u32 cost_AB = B.n_cols;
  const u32 cost_BC = B.n_rows;
  
  if(cost_AB <= cost_BC)
    {
    podarray<eT> tmp(B.n_cols);
    
    for(u32 col=0; col<B.n_cols; ++col)
      {
      const eT* B_coldata = B.colptr(col);
      
      eT val = eT(0);
      for(u32 i=0; i<B.n_rows; ++i)
        {
        val += A_mem[i] * B_coldata[i];
        }
        
      tmp[col] = val;
      }
    
    return op_dot::direct_dot(B.n_cols, tmp.mem, C_mem);
    }
  else
    {
    podarray<eT> tmp(B.n_rows);
    
    for(u32 row=0; row<B.n_rows; ++row)
      {
      eT val = eT(0);
      for(u32 col=0; col<B.n_cols; ++col)
        {
        val += B.at(row,col) * C_mem[col];
        }
      
      tmp[row] = val;
      }
    
    return op_dot::direct_dot(B.n_rows, A_mem, tmp.mem);
    }
  
  
  }

template<typename eT >

eT op_dotext::direct_rowvec_transmat_colvec	(	const eT *	A_mem,
		const Mat< eT > &	B,
		const eT *	C_mem
	)			[inline, static, inherited]

Definition at line 83 of file op_dotext_meat.hpp.

References Mat< eT >::at(), Mat< eT >::colptr(), op_dot::direct_dot(), podarray< eT >::mem, Mat< eT >::n_cols, and Mat< eT >::n_rows.

Referenced by as_scalar_redirect< 3 >::apply().

  {
  arma_extra_debug_sigprint();
  
  const u32 cost_AB = B.n_rows;
  const u32 cost_BC = B.n_cols;
  
  if(cost_AB <= cost_BC)
    {
    podarray<eT> tmp(B.n_rows);
    
    for(u32 row=0; row<B.n_rows; ++row)
      {
      eT val = eT(0);
      
      for(u32 i=0; i<B.n_cols; ++i)
        {
        val += A_mem[i] * B.at(row,i);
        }
        
      tmp[row] = val;
      }
    
    return op_dot::direct_dot(B.n_rows, tmp.mem, C_mem);
    }
  else
    {
    podarray<eT> tmp(B.n_cols);
    
    for(u32 col=0; col<B.n_cols; ++col)
      {
      const eT* B_coldata = B.colptr(col);
      
      eT val = eT(0);
      
      for(u32 i=0; i<B.n_rows; ++i)
        {
        val += B_coldata[i] * C_mem[i];
        }
      
      tmp[col] = val;
      }
    
    return op_dot::direct_dot(B.n_cols, A_mem, tmp.mem);
    }
  
  
  }

template<typename eT >

eT op_dotext::direct_rowvec_diagmat_colvec	(	const eT *	A_mem,
		const Mat< eT > &	B,
		const eT *	C_mem
	)			[inline, static, inherited]

Definition at line 142 of file op_dotext_meat.hpp.

References Mat< eT >::at(), and Mat< eT >::n_rows.

Referenced by as_scalar_redirect< 3 >::apply(), and as_scalar_diag().

  {
  arma_extra_debug_sigprint();
  
  eT val = eT(0);

  for(u32 i=0; i<B.n_rows; ++i)
    {
    val += A_mem[i] * B.at(i,i) * C_mem[i];
    }

  return val;
  }

template<typename eT >

eT op_dotext::direct_rowvec_invdiagmat_colvec	(	const eT *	A_mem,
		const Mat< eT > &	B,
		const eT *	C_mem
	)			[inline, static, inherited]

Definition at line 166 of file op_dotext_meat.hpp.

References Mat< eT >::at(), and Mat< eT >::n_rows.

Referenced by as_scalar_redirect< 3 >::apply().

  {
  arma_extra_debug_sigprint();
  
  eT val = eT(0);

  for(u32 i=0; i<B.n_rows; ++i)
    {
    val += (A_mem[i] * C_mem[i]) / B.at(i,i);
    }

  return val;
  }

template<typename eT >

eT op_dotext::direct_rowvec_invdiagvec_colvec	(	const eT *	A_mem,
		const Mat< eT > &	B,
		const eT *	C_mem
	)			[inline, static, inherited]

Definition at line 190 of file op_dotext_meat.hpp.

References Mat< eT >::mem, and Mat< eT >::n_elem.

Referenced by as_scalar_redirect< 3 >::apply().

  {
  arma_extra_debug_sigprint();
  
  const eT* B_mem = B.mem;
  
  eT val = eT(0);

  for(u32 i=0; i<B.n_elem; ++i)
    {
    val += (A_mem[i] * C_mem[i]) / B_mem[i];
    }

  return val;
  }