Generate and fill Arrays

Generate constant or random values out on the device of specified type. More...

Generate column vector
array	constant (float, unsigned nx, dtype ty=f32)
array	identity (unsigned nx, dtype ty=f32)
array	randu (unsigned nx, dtype ty=f32)
array	randn (unsigned nx, dtype ty=f32)
array	rand (unsigned nx, dtype ty=u32)
Generate matrix
array	constant (float, unsigned nx, unsigned ny, dtype ty=f32)
array	identity (unsigned nx, unsigned ny, dtype ty=f32)
array	randu (unsigned nx, unsigned ny, dtype ty=f32)
array	randn (unsigned nx, unsigned ny, dtype ty=f32)
array	rand (unsigned nx, unsigned ny, dtype ty=u32)
Generate volume
array	constant (float, unsigned nx, unsigned ny, unsigned nz, dtype ty=f32)
array	identity (unsigned nx, unsigned ny, unsigned nz, dtype ty=f32)
array	randu (unsigned nx, unsigned ny, unsigned nz, dtype ty=f32)
array	randn (unsigned nx, unsigned ny, unsigned nz, dtype ty=f32)
array	rand (unsigned nx, unsigned ny, unsigned nz, dtype ty=u32)
Generate 4D array
array	constant (float, unsigned d0, unsigned d1, unsigned d2, unsigned d3, dtype ty=f32)
array	identity (unsigned d0, unsigned d1, unsigned d2, unsigned d3, dtype ty=f32)
array	randu (unsigned d0, unsigned d1, unsigned d2, unsigned d3, dtype ty=f32)
array	randn (unsigned d0, unsigned d1, unsigned d2, unsigned d3, dtype ty=f32)
array	rand (unsigned d0, unsigned d1, unsigned d2, unsigned d3, dtype ty=u32)
Generate array
array	constant (float, const dim4 &dims, dtype ty=f32)
array	identity (const dim4 &dims, dtype ty=f32)
array	randu (const dim4 &dims, dtype ty=f32)
array	randn (const dim4 &dims, dtype ty=f32)
array	rand (const dim4 &dims, dtype ty=u32)

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Detailed Description

Generate constant or random values out on the device of specified type.

   //  create 5x5 matrix of zeros on the GPU
   array data = constant(0,5,5);
   //  create 7x3 matrix of random values [0-1] on the GPU
   array X = randu(7,3);  // X ~ U(0,1)
   array Y = randn(7,3);  // Y ~ N(0,1)
   array Z = rand(7,3);   // every bit is randomly 0 or 1

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Function Documentation

array af::constant	(	float	,
		unsigned	nx,
		dtype	ty = f32
	)

Examples:

examples/benchmarks/blas.cpp, examples/getting_started/gfor.cpp, examples/image_processing/image_demo.cpp, examples/image_processing/optical_flow.cpp, examples/machine_learning/kmeans.cpp, examples/pde/fdtd.cpp, and examples/pde/swe.cpp.

array af::identity	(	unsigned	nx,
		dtype	ty = f32
	)

array af::randu	(	unsigned	nx,
		dtype	ty = f32
	)

Examples:

examples/benchmarks/pi.cpp, examples/getting_started/convolve.cpp, examples/getting_started/fft.cpp, examples/getting_started/gfor.cpp, examples/getting_started/lin_algebra.cpp, examples/helloworld/helloworld.cpp, examples/machine_learning/neuralnetwork.cpp, and examples/visualization/vortex.cpp.

array af::randn	(	unsigned	nx,
		dtype	ty = f32
	)

array af::rand	(	unsigned	nx,
		dtype	ty = u32
	)

Examples:

examples/benchmarks/pi.cpp, and examples/machine_learning/geneticalgorithm.cpp.

array af::constant	(	float	,
		unsigned	nx,
		unsigned	ny,
		dtype	ty = f32
	)

array af::identity	(	unsigned	nx,
		unsigned	ny,
		dtype	ty = f32
	)

array af::randu	(	unsigned	nx,
		unsigned	ny,
		dtype	ty = f32
	)

array af::randn	(	unsigned	nx,
		unsigned	ny,
		dtype	ty = f32
	)

array af::rand	(	unsigned	nx,
		unsigned	ny,
		dtype	ty = u32
	)

array af::constant	(	float	,
		unsigned	nx,
		unsigned	ny,
		unsigned	nz,
		dtype	ty = f32
	)

array af::identity	(	unsigned	nx,
		unsigned	ny,
		unsigned	nz,
		dtype	ty = f32
	)

array af::randu	(	unsigned	nx,
		unsigned	ny,
		unsigned	nz,
		dtype	ty = f32
	)

array af::randn	(	unsigned	nx,
		unsigned	ny,
		unsigned	nz,
		dtype	ty = f32
	)

array af::rand	(	unsigned	nx,
		unsigned	ny,
		unsigned	nz,
		dtype	ty = u32
	)

array af::constant	(	float	,
		unsigned	d0,
		unsigned	d1,
		unsigned	d2,
		unsigned	d3,
		dtype	ty = f32
	)

array af::identity	(	unsigned	d0,
		unsigned	d1,
		unsigned	d2,
		unsigned	d3,
		dtype	ty = f32
	)

array af::randu	(	unsigned	d0,
		unsigned	d1,
		unsigned	d2,
		unsigned	d3,
		dtype	ty = f32
	)

array af::randn	(	unsigned	d0,
		unsigned	d1,
		unsigned	d2,
		unsigned	d3,
		dtype	ty = f32
	)

array af::rand	(	unsigned	d0,
		unsigned	d1,
		unsigned	d2,
		unsigned	d3,
		dtype	ty = u32
	)

array af::constant	(	float	,
		const dim4 &	dims,
		dtype	ty = f32
	)

array af::identity	(	const dim4 &	dims,
		dtype	ty = f32
	)

array af::randu	(	const dim4 &	dims,
		dtype	ty = f32
	)

array af::randn	(	const dim4 &	dims,
		dtype	ty = f32
	)

array af::rand	(	const dim4 &	dims,
		dtype	ty = u32
	)