bl1_setmr.c File Reference

(r)

Functions
void	bl1_ssetmr (uplo1_t uplo, int m, int n, float *sigma, float *a, int a_rs, int a_cs)
void	bl1_dsetmr (uplo1_t uplo, int m, int n, double *sigma, double *a, int a_rs, int a_cs)
void	bl1_csetmr (uplo1_t uplo, int m, int n, scomplex *sigma, scomplex *a, int a_rs, int a_cs)
void	bl1_zsetmr (uplo1_t uplo, int m, int n, dcomplex *sigma, dcomplex *a, int a_rs, int a_cs)

Function Documentation

bl1_csetmr()

void bl1_csetmr	(	uplo1_t	uplo,
		int	m,
		int	n,
		scomplex *	sigma,
		scomplex *	a,
		int	a_rs,
		int	a_cs )

{
    scomplex* a_begin;
    int       lda, inca;
    int       n_iter;
    int       n_elem_max;
    int       n_elem;
    int       j;
 
    // Return early if possible.
    if ( bl1_zero_dim2( m, n ) ) return;
 
    // Initialize with optimal values for column-major storage.
    n_iter     = n;
    n_elem_max = m;
    lda        = a_cs;
    inca       = a_rs;
 
    // An optimization: if A is row-major, then let's access the matrix by
    // rows instead of by columns to increase spatial locality.
    if ( bl1_is_row_storage( a_rs, a_cs ) )
    {
        bl1_swap_ints( n_iter, n_elem_max );
        bl1_swap_ints( lda, inca );
        bl1_toggle_uplo( uplo );
    }
    
    if ( bl1_is_upper( uplo ) )
    {
        for ( j = 0; j < n_iter; j++ )
        {
            n_elem  = bl1_min( j, n_elem_max );
            a_begin = a + j*lda;
 
            bl1_csetv( n_elem,
                       sigma,
                       a_begin, inca );
        }
    }
    else // if ( bl1_is_lower( uplo ) )
    {
        for ( j = 0; j < n_iter; j++ )
        {
            n_elem  = bl1_max( 0, n_elem_max - j - 1 );
            a_begin = a + j*lda + (j + 1)*inca;
 
            bl1_csetv( n_elem,
                       sigma,
                       a_begin, inca );
        }
    }
}

References bl1_csetv(), bl1_is_row_storage(), bl1_is_upper(), and bl1_zero_dim2().

Referenced by FLA_Setr(), and FLA_Triangularize().

bl1_dsetmr()

void bl1_dsetmr	(	uplo1_t	uplo,
		int	m,
		int	n,
		double *	sigma,
		double *	a,
		int	a_rs,
		int	a_cs )

{
    double*   a_begin;
    int       lda, inca;
    int       n_iter;
    int       n_elem_max;
    int       n_elem;
    int       j;
 
    // Return early if possible.
    if ( bl1_zero_dim2( m, n ) ) return;
 
    // Initialize with optimal values for column-major storage.
    n_iter     = n;
    n_elem_max = m;
    lda        = a_cs;
    inca       = a_rs;
 
    // An optimization: if A is row-major, then let's access the matrix by
    // rows instead of by columns to increase spatial locality.
    if ( bl1_is_row_storage( a_rs, a_cs ) )
    {
        bl1_swap_ints( n_iter, n_elem_max );
        bl1_swap_ints( lda, inca );
        bl1_toggle_uplo( uplo );
    }
    
    if ( bl1_is_upper( uplo ) )
    {
        for ( j = 0; j < n_iter; j++ )
        {
            n_elem  = bl1_min( j, n_elem_max );
            a_begin = a + j*lda;
 
            bl1_dsetv( n_elem,
                       sigma,
                       a_begin, inca );
        }
    }
    else // if ( bl1_is_lower( uplo ) )
    {
        for ( j = 0; j < n_iter; j++ )
        {
            n_elem  = bl1_max( 0, n_elem_max - j - 1 );
            a_begin = a + j*lda + (j + 1)*inca;
 
            bl1_dsetv( n_elem,
                       sigma,
                       a_begin, inca );
        }
    }
}

References bl1_dsetv(), bl1_is_row_storage(), bl1_is_upper(), and bl1_zero_dim2().

Referenced by FLA_Setr(), and FLA_Triangularize().

bl1_ssetmr()

void bl1_ssetmr	(	uplo1_t	uplo,
		int	m,
		int	n,
		float *	sigma,
		float *	a,
		int	a_rs,
		int	a_cs )

{
    float*    a_begin;
    int       lda, inca;
    int       n_iter;
    int       n_elem_max;
    int       n_elem;
    int       j;
 
    // Return early if possible.
    if ( bl1_zero_dim2( m, n ) ) return;
 
    // Initialize with optimal values for column-major storage.
    n_iter     = n;
    n_elem_max = m;
    lda        = a_cs;
    inca       = a_rs;
 
    // An optimization: if A is row-major, then let's access the matrix by
    // rows instead of by columns to increase spatial locality.
    if ( bl1_is_row_storage( a_rs, a_cs ) )
    {
        bl1_swap_ints( n_iter, n_elem_max );
        bl1_swap_ints( lda, inca );
        bl1_toggle_uplo( uplo );
    }
    
    if ( bl1_is_upper( uplo ) )
    {
        for ( j = 0; j < n_iter; j++ )
        {
            n_elem  = bl1_min( j, n_elem_max );
            a_begin = a + j*lda;
 
            bl1_ssetv( n_elem,
                       sigma,
                       a_begin, inca );
        }
    }
    else // if ( bl1_is_lower( uplo ) )
    {
        for ( j = 0; j < n_iter; j++ )
        {
            n_elem  = bl1_max( 0, n_elem_max - j - 1 );
            a_begin = a + j*lda + (j + 1)*inca;
 
            bl1_ssetv( n_elem,
                       sigma,
                       a_begin, inca );
        }
    }
}

References bl1_is_row_storage(), bl1_is_upper(), bl1_ssetv(), and bl1_zero_dim2().

Referenced by FLA_Setr(), and FLA_Triangularize().

bl1_zsetmr()

void bl1_zsetmr	(	uplo1_t	uplo,
		int	m,
		int	n,
		dcomplex *	sigma,
		dcomplex *	a,
		int	a_rs,
		int	a_cs )

{
    dcomplex* a_begin;
    int       lda, inca;
    int       n_iter;
    int       n_elem_max;
    int       n_elem;
    int       j;
 
    // Return early if possible.
    if ( bl1_zero_dim2( m, n ) ) return;
 
    // Initialize with optimal values for column-major storage.
    n_iter     = n;
    n_elem_max = m;
    lda        = a_cs;
    inca       = a_rs;
 
    // An optimization: if A is row-major, then let's access the matrix by
    // rows instead of by columns to increase spatial locality.
    if ( bl1_is_row_storage( a_rs, a_cs ) )
    {
        bl1_swap_ints( n_iter, n_elem_max );
        bl1_swap_ints( lda, inca );
        bl1_toggle_uplo( uplo );
    }
    
    if ( bl1_is_upper( uplo ) )
    {
        for ( j = 0; j < n_iter; j++ )
        {
            n_elem  = bl1_min( j, n_elem_max );
            a_begin = a + j*lda;
 
            bl1_zsetv( n_elem,
                       sigma,
                       a_begin, inca );
        }
    }
    else // if ( bl1_is_lower( uplo ) )
    {
        for ( j = 0; j < n_iter; j++ )
        {
            n_elem  = bl1_max( 0, n_elem_max - j - 1 );
            a_begin = a + j*lda + (j + 1)*inca;
 
            bl1_zsetv( n_elem,
                       sigma,
                       a_begin, inca );
        }
    }
}

References bl1_is_row_storage(), bl1_is_upper(), bl1_zero_dim2(), and bl1_zsetv().

Referenced by FLA_Setr(), and FLA_Triangularize().