bl1_randm.c File Reference

(r12600)

Functions
void	bl1_srandm (int m, int n, float *a, int a_rs, int a_cs)
void	bl1_drandm (int m, int n, double *a, int a_rs, int a_cs)
void	bl1_crandm (int m, int n, scomplex *a, int a_rs, int a_cs)
void	bl1_zrandm (int m, int n, dcomplex *a, int a_rs, int a_cs)

---

Function Documentation

void bl1_crandm	(	int	m,
		int	n,
		scomplex *	a,
		int	a_rs,
		int	a_cs
	)

References bl1_crandv(), bl1_is_row_storage(), and bl1_zero_dim2().

Referenced by FLA_Random_matrix().

{
    scomplex* a_begin;
    int       inca, lda;
    int       n_iter;
    int       n_elem;
    int       j;

    // Return early if possible.
    if ( bl1_zero_dim2( m, n ) ) return;

    // Initialize with optimal values for column-major storage.
    inca   = a_rs;
    lda    = a_cs;
    n_iter = n;
    n_elem = m;

    // An optimization: if A is row-major, then let's access the matrix by
    // rows instead of by columns for increased spatial locality.
    if ( bl1_is_row_storage( a_rs, a_cs ) )
    {
        bl1_swap_ints( n_iter, n_elem );
        bl1_swap_ints( lda, inca );
    }

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

        bl1_crandv( n_elem,
                    a_begin, inca );
    }
}

void bl1_drandm	(	int	m,
		int	n,
		double *	a,
		int	a_rs,
		int	a_cs
	)

References bl1_drandv(), bl1_is_row_storage(), and bl1_zero_dim2().

Referenced by FLA_Random_matrix().

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

    // Return early if possible.
    if ( bl1_zero_dim2( m, n ) ) return;

    // Initialize with optimal values for column-major storage.
    inca   = a_rs;
    lda    = a_cs;
    n_iter = n;
    n_elem = m;

    // An optimization: if A is row-major, then let's access the matrix by
    // rows instead of by columns for increased spatial locality.
    if ( bl1_is_row_storage( a_rs, a_cs ) )
    {
        bl1_swap_ints( n_iter, n_elem );
        bl1_swap_ints( lda, inca );
    }

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

        bl1_drandv( n_elem,
                    a_begin, inca );
    }
}

void bl1_srandm	(	int	m,
		int	n,
		float *	a,
		int	a_rs,
		int	a_cs
	)

References bl1_is_row_storage(), bl1_srandv(), and bl1_zero_dim2().

Referenced by FLA_Random_matrix().

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

    // Return early if possible.
    if ( bl1_zero_dim2( m, n ) ) return;

    // Initialize with optimal values for column-major storage.
    inca   = a_rs;
    lda    = a_cs;
    n_iter = n;
    n_elem = m;

    // An optimization: if A is row-major, then let's access the matrix by
    // rows instead of by columns for increased spatial locality.
    if ( bl1_is_row_storage( a_rs, a_cs ) )
    {
        bl1_swap_ints( n_iter, n_elem );
        bl1_swap_ints( lda, inca );
    }

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

        bl1_srandv( n_elem,
                    a_begin, inca );
    }
}

void bl1_zrandm	(	int	m,
		int	n,
		dcomplex *	a,
		int	a_rs,
		int	a_cs
	)

References bl1_is_row_storage(), bl1_zero_dim2(), and bl1_zrandv().

Referenced by FLA_Random_matrix().

{
    dcomplex* a_begin;
    int       inca, lda;
    int       n_iter;
    int       n_elem;
    int       j;

    // Return early if possible.
    if ( bl1_zero_dim2( m, n ) ) return;

    // Initialize with optimal values for column-major storage.
    inca   = a_rs;
    lda    = a_cs;
    n_iter = n;
    n_elem = m;

    // An optimization: if A is row-major, then let's access the matrix by
    // rows instead of by columns for increased spatial locality.
    if ( bl1_is_row_storage( a_rs, a_cs ) )
    {
        bl1_swap_ints( n_iter, n_elem );
        bl1_swap_ints( lda, inca );
    }

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

        bl1_zrandv( n_elem,
                    a_begin, inca );
    }
}