bli_axpymt.c File Reference

(r)

Functions
void	bli_saxpymt (trans_t trans, int m, int n, float *alpha, float *a, int a_rs, int a_cs, float *b, int b_rs, int b_cs)
void	bli_daxpymt (trans_t trans, int m, int n, double *alpha, double *a, int a_rs, int a_cs, double *b, int b_rs, int b_cs)
void	bli_caxpymt (trans_t trans, int m, int n, scomplex *alpha, scomplex *a, int a_rs, int a_cs, scomplex *b, int b_rs, int b_cs)
void	bli_zaxpymt (trans_t trans, int m, int n, dcomplex *alpha, dcomplex *a, int a_rs, int a_cs, dcomplex *b, int b_rs, int b_cs)

---

Function Documentation

void bli_caxpymt	(	trans_t	trans,
		int	m,
		int	n,
		scomplex *	alpha,
		scomplex *	a,
		int	a_rs,
		int	a_cs,
		scomplex *	b,
		int	b_rs,
		int	b_cs
	)

References bli_callocv(), bli_caxpy(), bli_ccopyv(), bli_cfree(), bli_does_conj(), bli_does_notrans(), bli_does_trans(), bli_is_col_storage(), bli_is_row_storage(), bli_is_vector(), bli_proj_trans_to_conj(), bli_vector_dim(), bli_vector_inc(), bli_zero_dim2(), and BLIS_NO_TRANSPOSE.

Referenced by bli_cgemm(), bli_chemm(), bli_csymm(), bli_ctrmmsx(), bli_ctrsmsx(), FLA_Axpy_external(), and FLA_Axpyt_external().

{
    scomplex* a_begin;
    scomplex* b_begin;
    scomplex* a_temp;
    int       inca_temp;
    int       lda, inca;
    int       ldb, incb;
    int       n_iter;
    int       n_elem;
    int       j;

    // Return early if possible.
    if ( bli_zero_dim2( m, n ) ) return;

    // Handle cases where A and B are vectors to ensure that the underlying axpy
    // gets invoked only once.
    if ( bli_is_vector( m, n ) )
    {
        // Initialize with values appropriate for vectors.
        n_iter = 1;
        n_elem = bli_vector_dim( m, n );
        lda    = 1; // multiplied by zero when n_iter == 1; not needed.
        inca   = bli_vector_inc( trans,             m, n, a_rs, a_cs );
        ldb    = 1; // multiplied by zero when n_iter == 1; not needed.
        incb   = bli_vector_inc( BLIS_NO_TRANSPOSE, m, n, b_rs, b_cs );
    }
    else // matrix case
    {
        // Initialize with optimal values for column-major storage.
        n_iter = n;
        n_elem = m;
        lda    = a_cs;
        inca   = a_rs;
        ldb    = b_cs;
        incb   = b_rs;
        
        // Handle the transposition of A.
        if ( bli_does_trans( trans ) )
        {
            bli_swap_ints( lda, inca );
        }

        // An optimization: if B is row-major and if A is effectively row-major
        // after a possible transposition, then let's access the matrices by rows
        // instead of by columns for increased spatial locality.
        if ( bli_is_row_storage( b_rs, b_cs ) )
        {
            if ( ( bli_is_col_storage( a_rs, a_cs ) && bli_does_trans( trans ) ) ||
                 ( bli_is_row_storage( a_rs, a_cs ) && bli_does_notrans( trans ) ) )
            {
                bli_swap_ints( n_iter, n_elem );
                bli_swap_ints( lda, inca );
                bli_swap_ints( ldb, incb );
            }
        }
    }

    if ( bli_does_conj( trans ) )
    {
        conj_t conj = bli_proj_trans_to_conj( trans );

        a_temp = bli_callocv( n_elem );
        inca_temp = 1;

        for ( j = 0; j < n_iter; j++ )
        {
            a_begin = a + j*lda;
            b_begin = b + j*ldb;

            bli_ccopyv( conj,
                        n_elem,
                        a_begin, inca,
                        a_temp,  inca_temp );

            bli_caxpy( n_elem,
                       alpha,
                       a_temp,  inca_temp, 
                       b_begin, incb );
        }

        bli_cfree( a_temp );
    }
    else // if ( !bli_does_conj( trans ) )
    {
        for ( j = 0; j < n_iter; j++ )
        {
            a_begin = a + j*lda;
            b_begin = b + j*ldb;

            bli_caxpy( n_elem,
                       alpha,
                       a_begin, inca, 
                       b_begin, incb );
        }
    
    }
}

void bli_daxpymt	(	trans_t	trans,
		int	m,
		int	n,
		double *	alpha,
		double *	a,
		int	a_rs,
		int	a_cs,
		double *	b,
		int	b_rs,
		int	b_cs
	)

References bli_daxpy(), bli_does_notrans(), bli_does_trans(), bli_is_col_storage(), bli_is_row_storage(), bli_is_vector(), bli_vector_dim(), bli_vector_inc(), bli_zero_dim2(), and BLIS_NO_TRANSPOSE.

Referenced by bli_dgemm(), bli_dsymm(), bli_dtrmmsx(), bli_dtrsmsx(), FLA_Axpy_external(), and FLA_Axpyt_external().

{
    double*   a_begin;
    double*   b_begin;
    int       lda, inca;
    int       ldb, incb;
    int       n_iter;
    int       n_elem;
    int       j;

    // Return early if possible.
    if ( bli_zero_dim2( m, n ) ) return;

    // Handle cases where A and B are vectors to ensure that the underlying axpy
    // gets invoked only once.
    if ( bli_is_vector( m, n ) )
    {
        // Initialize with values appropriate for vectors.
        n_iter = 1;
        n_elem = bli_vector_dim( m, n );
        lda    = 1; // multiplied by zero when n_iter == 1; not needed.
        inca   = bli_vector_inc( trans,             m, n, a_rs, a_cs );
        ldb    = 1; // multiplied by zero when n_iter == 1; not needed.
        incb   = bli_vector_inc( BLIS_NO_TRANSPOSE, m, n, b_rs, b_cs );
    }
    else // matrix case
    {
        // Initialize with optimal values for column-major storage.
        n_iter = n;
        n_elem = m;
        lda    = a_cs;
        inca   = a_rs;
        ldb    = b_cs;
        incb   = b_rs;
        
        // Handle the transposition of A.
        if ( bli_does_trans( trans ) )
        {
            bli_swap_ints( lda, inca );
        }

        // An optimization: if B is row-major and if A is effectively row-major
        // after a possible transposition, then let's access the matrices by rows
        // instead of by columns for increased spatial locality.
        if ( bli_is_row_storage( b_rs, b_cs ) )
        {
            if ( ( bli_is_col_storage( a_rs, a_cs ) && bli_does_trans( trans ) ) ||
                 ( bli_is_row_storage( a_rs, a_cs ) && bli_does_notrans( trans ) ) )
            {
                bli_swap_ints( n_iter, n_elem );
                bli_swap_ints( lda, inca );
                bli_swap_ints( ldb, incb );
            }
        }
    }

    for ( j = 0; j < n_iter; j++ )
    {
        a_begin = a + j*lda;
        b_begin = b + j*ldb;

        bli_daxpy( n_elem,
                   alpha,
                   a_begin, inca, 
                   b_begin, incb );
    }
}

void bli_saxpymt	(	trans_t	trans,
		int	m,
		int	n,
		float *	alpha,
		float *	a,
		int	a_rs,
		int	a_cs,
		float *	b,
		int	b_rs,
		int	b_cs
	)

References bli_does_notrans(), bli_does_trans(), bli_is_col_storage(), bli_is_row_storage(), bli_is_vector(), bli_saxpy(), bli_vector_dim(), bli_vector_inc(), bli_zero_dim2(), and BLIS_NO_TRANSPOSE.

Referenced by bli_sgemm(), bli_ssymm(), bli_strmmsx(), bli_strsmsx(), FLA_Axpy_external(), and FLA_Axpyt_external().

{
    float*    a_begin;
    float*    b_begin;
    int       lda, inca;
    int       ldb, incb;
    int       n_iter;
    int       n_elem;
    int       j;

    // Return early if possible.
    if ( bli_zero_dim2( m, n ) ) return;

    // Handle cases where A and B are vectors to ensure that the underlying axpy
    // gets invoked only once.
    if ( bli_is_vector( m, n ) )
    {
        // Initialize with values appropriate for vectors.
        n_iter = 1;
        n_elem = bli_vector_dim( m, n );
        lda    = 1; // multiplied by zero when n_iter == 1; not needed.
        inca   = bli_vector_inc( trans,             m, n, a_rs, a_cs );
        ldb    = 1; // multiplied by zero when n_iter == 1; not needed.
        incb   = bli_vector_inc( BLIS_NO_TRANSPOSE, m, n, b_rs, b_cs );
    }
    else // matrix case
    {
        // Initialize with optimal values for column-major storage.
        n_iter = n;
        n_elem = m;
        lda    = a_cs;
        inca   = a_rs;
        ldb    = b_cs;
        incb   = b_rs;
        
        // Handle the transposition of A.
        if ( bli_does_trans( trans ) )
        {
            bli_swap_ints( lda, inca );
        }

        // An optimization: if B is row-major and if A is effectively row-major
        // after a possible transposition, then let's access the matrices by rows
        // instead of by columns for increased spatial locality.
        if ( bli_is_row_storage( b_rs, b_cs ) )
        {
            if ( ( bli_is_col_storage( a_rs, a_cs ) && bli_does_trans( trans ) ) ||
                 ( bli_is_row_storage( a_rs, a_cs ) && bli_does_notrans( trans ) ) )
            {
                bli_swap_ints( n_iter, n_elem );
                bli_swap_ints( lda, inca );
                bli_swap_ints( ldb, incb );
            }
        }
    }

    for ( j = 0; j < n_iter; j++ )
    {
        a_begin = a + j*lda;
        b_begin = b + j*ldb;

        bli_saxpy( n_elem,
                   alpha,
                   a_begin, inca, 
                   b_begin, incb );
    }
}

void bli_zaxpymt	(	trans_t	trans,
		int	m,
		int	n,
		dcomplex *	alpha,
		dcomplex *	a,
		int	a_rs,
		int	a_cs,
		dcomplex *	b,
		int	b_rs,
		int	b_cs
	)

References bli_does_conj(), bli_does_notrans(), bli_does_trans(), bli_is_col_storage(), bli_is_row_storage(), bli_is_vector(), bli_proj_trans_to_conj(), bli_vector_dim(), bli_vector_inc(), bli_zallocv(), bli_zaxpy(), bli_zcopyv(), bli_zero_dim2(), bli_zfree(), and BLIS_NO_TRANSPOSE.

Referenced by bli_zgemm(), bli_zhemm(), bli_zsymm(), bli_ztrmmsx(), bli_ztrsmsx(), FLA_Axpy_external(), and FLA_Axpyt_external().

{
    dcomplex* a_begin;
    dcomplex* b_begin;
    dcomplex* a_temp;
    int       inca_temp;
    int       lda, inca;
    int       ldb, incb;
    int       n_iter;
    int       n_elem;
    int       j;

    // Return early if possible.
    if ( bli_zero_dim2( m, n ) ) return;

    // Handle cases where A and B are vectors to ensure that the underlying axpy
    // gets invoked only once.
    if ( bli_is_vector( m, n ) )
    {
        // Initialize with values appropriate for vectors.
        n_iter = 1;
        n_elem = bli_vector_dim( m, n );
        lda    = 1; // multiplied by zero when n_iter == 1; not needed.
        inca   = bli_vector_inc( trans,             m, n, a_rs, a_cs );
        ldb    = 1; // multiplied by zero when n_iter == 1; not needed.
        incb   = bli_vector_inc( BLIS_NO_TRANSPOSE, m, n, b_rs, b_cs );
    }
    else // matrix case
    {
        // Initialize with optimal values for column-major storage.
        n_iter = n;
        n_elem = m;
        lda    = a_cs;
        inca   = a_rs;
        ldb    = b_cs;
        incb   = b_rs;
        
        // Handle the transposition of A.
        if ( bli_does_trans( trans ) )
        {
            bli_swap_ints( lda, inca );
        }

        // An optimization: if B is row-major and if A is effectively row-major
        // after a possible transposition, then let's access the matrices by rows
        // instead of by columns for increased spatial locality.
        if ( bli_is_row_storage( b_rs, b_cs ) )
        {
            if ( ( bli_is_col_storage( a_rs, a_cs ) && bli_does_trans( trans ) ) ||
                 ( bli_is_row_storage( a_rs, a_cs ) && bli_does_notrans( trans ) ) )
            {
                bli_swap_ints( n_iter, n_elem );
                bli_swap_ints( lda, inca );
                bli_swap_ints( ldb, incb );
            }
        }
    }

    if ( bli_does_conj( trans ) )
    {
        conj_t conj = bli_proj_trans_to_conj( trans );

        a_temp = bli_zallocv( n_elem );
        inca_temp = 1;

        for ( j = 0; j < n_iter; j++ )
        {
            a_begin = a + j*lda;
            b_begin = b + j*ldb;

            bli_zcopyv( conj,
                        n_elem,
                        a_begin, inca,
                        a_temp,  inca_temp );

            bli_zaxpy( n_elem,
                       alpha,
                       a_temp,  inca_temp, 
                       b_begin, incb );
        }

        bli_zfree( a_temp );
    }
    else // if ( !bli_does_conj( trans ) )
    {
        for ( j = 0; j < n_iter; j++ )
        {
            a_begin = a + j*lda;
            b_begin = b + j*ldb;

            bli_zaxpy( n_elem,
                       alpha,
                       a_begin, inca, 
                       b_begin, incb );
        }
    
    }
}