af_min

the C interface for min More...

All Elements
Parameters [out] count Scalar and on host [in] numel The number of elements in the vector. [in] mat The input stream
afError	af_min_vector_S (float *h_dst, unsigned numel, const float *d_src)
	Minimum value of a single precision vector. More...
afError	af_min_vector_B (bool *h_dst, unsigned numel, const bool *d_src)
	Minimum value of a boolean vector. More...
afError	af_min_vector_I (int *h_dst, unsigned numel, const int *d_src)
	Minimum value of a 32-bit signed integer vector. More...
afError	af_min_vector_U (unsigned *h_dst, unsigned numel, const unsigned *d_src)
	Minimum value of a 32-bit unsigned integer vector. More...
afError	af_min_vector_C (cfloat *h_dst, unsigned numel, const cfloat *d_src)
	Minimum value of a single precision, complex vector. More...
afError	af_min_vector_D (double *h_dst, unsigned numel, const double *d_src)
	Minimum value of a double precision vector. More...
afError	af_min_vector_Z (cdouble *h_dst, unsigned numel, const cdouble *d_src)
	Minimum value of a double precision, complex vector. More...
afError	af_imin_vector_S (float *h_dst, int *h_idx, unsigned numel, const float *d_src, bool is_baseone=false)
	Indexed minimum value of a single precision vector,. More...
afError	af_imin_vector_I (int *h_dst, int *h_idx, unsigned numel, const int *d_src, bool is_baseone=false)
	Indexed minimum value of a 32-bit signed integer vector,. More...
afError	af_imin_vector_U (unsigned *h_dst, int *h_idx, unsigned numel, const unsigned *d_src, bool is_baseone=false)
	Indexed minimum value of a 32-bit unsigned integer vector,. More...
afError	af_imin_vector_B (bool *h_dst, int *h_idx, unsigned numel, const bool *d_src, bool is_baseone=false)
	Indexed minimum value of a boolean vector. More...
afError	af_imin_vector_C (cfloat *h_dst, int *h_idx, unsigned numel, const cfloat *d_src, bool is_baseone=false)
	Indexed minimum value of a single precision, complex vector. More...
afError	af_imin_vector_D (double *h_dst, int *h_idx, unsigned numel, const double *d_src, bool is_baseone=false)
	Indexed minimum value of a double precision vector. More...
afError	af_imin_vector_Z (cdouble *h_dst, int *h_idx, unsigned numel, const cdouble *d_src, bool is_baseone=false)
	Indexed minimum value of a double precision, complex vector. More...

Along a Dimension
Parameters [out] count vector and on device [in] numel The number of elements in the vector. [in] mat The input stream [in] batch The number of input tiles.
afError	af_min_S (float *d_dst, unsigned ndims, const unsigned *dims, const float *d_src, int dim)
	Minimum value along a dimension in single precision matrix. More...
afError	af_min_B (bool *d_dst, unsigned ndims, const unsigned *dims, const bool *d_src, int dim)
	Minimum value along a dimension in boolean matrix. More...
afError	af_min_I (int *d_dst, unsigned ndims, const unsigned *dims, const int *d_src, int dim)
	Minimum value along a dimension in 32-bit signed integer matrix. More...
afError	af_min_U (unsigned *d_dst, unsigned ndims, const unsigned *dims, const unsigned *d_src, int dim)
	Minimum value along a dimension in 32-bit unsigned integer matrix. More...
afError	af_min_C (cfloat *d_dst, unsigned ndims, const unsigned *dims, const cfloat *d_src, int dim)
	Minimum value along a dimension in single precision, complex matrix. More...
afError	af_min_D (double *d_dst, unsigned ndims, const unsigned *dims, const double *d_src, int dim)
	Minimum value along a dimension in double precision matrix. More...
afError	af_min_Z (cdouble *d_dst, unsigned ndims, const unsigned *dims, const cdouble *d_src, int dim)
	Minimum value along a dimension in double precision, complex matrix. More...
afError	af_imin_S (float *d_dst, int *d_idx, unsigned ndims, const unsigned *dims, const float *d_src, int dim, bool is_baseone=false)
	Indexed minimum value along a dimension in single precision matrix. More...
afError	af_imin_I (int *d_dst, int *d_idx, unsigned ndims, const unsigned *dims, const int *d_src, int dim, bool is_baseone=false)
	Indexed minimum value along a dimension in 32-bit signed integer matrix. More...
afError	af_imin_U (unsigned *d_dst, int *d_idx, unsigned ndims, const unsigned *dims, const unsigned *d_src, int dim, bool is_baseone=false)
	Indexed minimum value along a dimension in 32-bit unsigned integer matrix. More...
afError	af_imin_B (bool *d_dst, int *d_idx, unsigned ndims, const unsigned *dims, const bool *d_src, int dim, bool is_baseone=false)
	Indexed minimum value along a dimension in boolean matrix. More...
afError	af_imin_C (cfloat *d_dst, int *d_idx, unsigned ndims, const unsigned *dims, const cfloat *d_src, int dim, bool is_baseone=false)
	Indexed minimum value along a dimension in single precision, cplx matrix. More...
afError	af_imin_D (double *d_dst, int *d_idx, unsigned ndims, const unsigned *dims, const double *d_src, int dim, bool is_baseone=false)
	Indexed minimum value along a dimension in double precision matrix. More...
afError	af_imin_Z (cdouble *d_dst, int *d_idx, unsigned ndims, const unsigned *dims, const cdouble *d_src, int dim, bool is_baseone=false)
	Indexed minimum value along a dimension in double precision, cplx matrix. More...

Detailed Description

the C interface for min

Returns the minimum value of an array, or if specified, the
minimum value of each dimension of the array. min can
also return the index of the minimum element:

int hx[] = { -3, -5, 2, -9 };
// hx = -3  2
//      -5 -9
array x(2,2, hx); // 2x2 matrix
float value;
int index;
min(&value, &index, x);
printf("%g,%d\n", value, index)); // -9,3

Return the minimum regardless of dimension:

int hx[] = { -3, -5, 2, -9 };
array x1(2,2, hx); // 2x2 matrix
array x2(4,1, hx); // 4x1 vector
printf("%d,%d\n", min<int>(x1), min<int>(x2)); // -9,-9

Return minimum and indices along a given dimension

float ha[] = {1, 2, 3, 4};
array in = array(2, 2, ha);

// Storage for the results
array m, i;

// Min along columns
min(m, i, in, 0);
print(m);
print(i);
// m = 1.0000    3.0000
// i = 0         0

// Min along rows
min(m, i, in, 1);
print(m);
print(i);

// m = 1.0000
//     2.0000

// i = 0
//     0

Function Documentation

afError af_min_vector_S	(	float *	h_dst,
		unsigned	numel,
		const float *	d_src
	)

Minimum value of a single precision vector.

afError af_min_vector_B	(	bool *	h_dst,
		unsigned	numel,
		const bool *	d_src
	)

Minimum value of a boolean vector.

afError af_min_vector_I	(	int *	h_dst,
		unsigned	numel,
		const int *	d_src
	)

Minimum value of a 32-bit signed integer vector.

afError af_min_vector_U	(	unsigned *	h_dst,
		unsigned	numel,
		const unsigned *	d_src
	)

Minimum value of a 32-bit unsigned integer vector.

afError af_min_vector_C	(	cfloat *	h_dst,
		unsigned	numel,
		const cfloat *	d_src
	)

Minimum value of a single precision, complex vector.

afError af_min_vector_D	(	double *	h_dst,
		unsigned	numel,
		const double *	d_src
	)

Minimum value of a double precision vector.

afError af_min_vector_Z	(	cdouble *	h_dst,
		unsigned	numel,
		const cdouble *	d_src
	)

Minimum value of a double precision, complex vector.

afError af_imin_vector_S	(	float *	h_dst,
		int *	h_idx,
		unsigned	numel,
		const float *	d_src,
		bool	is_baseone = false
	)

Indexed minimum value of a single precision vector,.

afError af_imin_vector_I	(	int *	h_dst,
		int *	h_idx,
		unsigned	numel,
		const int *	d_src,
		bool	is_baseone = false
	)

Indexed minimum value of a 32-bit signed integer vector,.

afError af_imin_vector_U	(	unsigned *	h_dst,
		int *	h_idx,
		unsigned	numel,
		const unsigned *	d_src,
		bool	is_baseone = false
	)

Indexed minimum value of a 32-bit unsigned integer vector,.

afError af_imin_vector_B	(	bool *	h_dst,
		int *	h_idx,
		unsigned	numel,
		const bool *	d_src,
		bool	is_baseone = false
	)

Indexed minimum value of a boolean vector.

afError af_imin_vector_C	(	cfloat *	h_dst,
		int *	h_idx,
		unsigned	numel,
		const cfloat *	d_src,
		bool	is_baseone = false
	)

Indexed minimum value of a single precision, complex vector.

afError af_imin_vector_D	(	double *	h_dst,
		int *	h_idx,
		unsigned	numel,
		const double *	d_src,
		bool	is_baseone = false
	)

Indexed minimum value of a double precision vector.

afError af_imin_vector_Z	(	cdouble *	h_dst,
		int *	h_idx,
		unsigned	numel,
		const cdouble *	d_src,
		bool	is_baseone = false
	)

Indexed minimum value of a double precision, complex vector.

afError af_min_S	(	float *	d_dst,
		unsigned	ndims,
		const unsigned *	dims,
		const float *	d_src,
		int	dim
	)

Minimum value along a dimension in single precision matrix.

afError af_min_B	(	bool *	d_dst,
		unsigned	ndims,
		const unsigned *	dims,
		const bool *	d_src,
		int	dim
	)

Minimum value along a dimension in boolean matrix.

afError af_min_I	(	int *	d_dst,
		unsigned	ndims,
		const unsigned *	dims,
		const int *	d_src,
		int	dim
	)

Minimum value along a dimension in 32-bit signed integer matrix.

afError af_min_U	(	unsigned *	d_dst,
		unsigned	ndims,
		const unsigned *	dims,
		const unsigned *	d_src,
		int	dim
	)

Minimum value along a dimension in 32-bit unsigned integer matrix.

afError af_min_C	(	cfloat *	d_dst,
		unsigned	ndims,
		const unsigned *	dims,
		const cfloat *	d_src,
		int	dim
	)

Minimum value along a dimension in single precision, complex matrix.

afError af_min_D	(	double *	d_dst,
		unsigned	ndims,
		const unsigned *	dims,
		const double *	d_src,
		int	dim
	)

Minimum value along a dimension in double precision matrix.

afError af_min_Z	(	cdouble *	d_dst,
		unsigned	ndims,
		const unsigned *	dims,
		const cdouble *	d_src,
		int	dim
	)

Minimum value along a dimension in double precision, complex matrix.

afError af_imin_S	(	float *	d_dst,
		int *	d_idx,
		unsigned	ndims,
		const unsigned *	dims,
		const float *	d_src,
		int	dim,
		bool	is_baseone = false
	)

Indexed minimum value along a dimension in single precision matrix.

afError af_imin_I	(	int *	d_dst,
		int *	d_idx,
		unsigned	ndims,
		const unsigned *	dims,
		const int *	d_src,
		int	dim,
		bool	is_baseone = false
	)

Indexed minimum value along a dimension in 32-bit signed integer matrix.

afError af_imin_U	(	unsigned *	d_dst,
		int *	d_idx,
		unsigned	ndims,
		const unsigned *	dims,
		const unsigned *	d_src,
		int	dim,
		bool	is_baseone = false
	)

Indexed minimum value along a dimension in 32-bit unsigned integer matrix.

afError af_imin_B	(	bool *	d_dst,
		int *	d_idx,
		unsigned	ndims,
		const unsigned *	dims,
		const bool *	d_src,
		int	dim,
		bool	is_baseone = false
	)

Indexed minimum value along a dimension in boolean matrix.

afError af_imin_C	(	cfloat *	d_dst,
		int *	d_idx,
		unsigned	ndims,
		const unsigned *	dims,
		const cfloat *	d_src,
		int	dim,
		bool	is_baseone = false
	)

Indexed minimum value along a dimension in single precision, cplx matrix.

afError af_imin_D	(	double *	d_dst,
		int *	d_idx,
		unsigned	ndims,
		const unsigned *	dims,
		const double *	d_src,
		int	dim,
		bool	is_baseone = false
	)

Indexed minimum value along a dimension in double precision matrix.

afError af_imin_Z	(	cdouble *	d_dst,
		int *	d_idx,
		unsigned	ndims,
		const unsigned *	dims,
		const cdouble *	d_src,
		int	dim,
		bool	is_baseone = false
	)

Indexed minimum value along a dimension in double precision, cplx matrix.