philox_rand.h File Reference

Philox counter-based RNG from [39]. More...

#include "myintrin.h"
#include <cstdint>

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Macros
#define	SVE_QUALIFIERS
#define	QUALIFIERS   inline
#define	PHILOX_W32_0   (0x9E3779B9)
#define	PHILOX_W32_1   (0xBB67AE85)
#define	PHILOX_M4x32_0   (0xD2511F53)
#define	PHILOX_M4x32_1   (0xCD9E8D57)
#define	TWOPOW53_INV_DOUBLE   (1.1102230246251565e-16)
#define	TWOPOW32_INV_FLOAT   (2.3283064e-10f)

Typedefs
typedef std::uint32_t	uint32
typedef std::uint64_t	uint64

Functions
QUALIFIERS uint32	mulhilo32 (uint32 a, uint32 b, uint32 *hip)
QUALIFIERS void	_philox4x32round (uint32 *ctr, uint32 *key)
QUALIFIERS void	_philox4x32bumpkey (uint32 *key)
QUALIFIERS double	_uniform_double_hq (uint32 x, uint32 y)
QUALIFIERS void	philox_double2 (uint32 ctr0, uint32 ctr1, uint32 ctr2, uint32 ctr3, uint32 key0, uint32 key1, double &rnd1, double &rnd2)
QUALIFIERS void	philox_float4 (uint32 ctr0, uint32 ctr1, uint32 ctr2, uint32 ctr3, uint32 key0, uint32 key1, float &rnd1, float &rnd2, float &rnd3, float &rnd4)

Detailed Description

Philox counter-based RNG from [39].

Adapted from the pystencils source file https://i10git.cs.fau.de/pycodegen/pystencils/-/blob/b4d7ef7cb5b499f3fa55ebfcd598ac7d6e11a3db/src/pystencils/include/philox_rand.h

Definition in file electrokinetics/generated_kernels/philox_rand.h.

Macro Definition Documentation

PHILOX_M4x32_0

#define PHILOX_M4x32_0   (0xD2511F53)

Definition at line 107 of file electrokinetics/generated_kernels/philox_rand.h.

PHILOX_M4x32_1

#define PHILOX_M4x32_1   (0xCD9E8D57)

Definition at line 108 of file electrokinetics/generated_kernels/philox_rand.h.

PHILOX_W32_0

#define PHILOX_W32_0   (0x9E3779B9)

Definition at line 105 of file electrokinetics/generated_kernels/philox_rand.h.

PHILOX_W32_1

#define PHILOX_W32_1   (0xBB67AE85)

Definition at line 106 of file electrokinetics/generated_kernels/philox_rand.h.

QUALIFIERS

#define QUALIFIERS   inline

Definition at line 101 of file electrokinetics/generated_kernels/philox_rand.h.

SVE_QUALIFIERS

#define SVE_QUALIFIERS

Definition at line 92 of file electrokinetics/generated_kernels/philox_rand.h.

TWOPOW32_INV_FLOAT

#define TWOPOW32_INV_FLOAT   (2.3283064e-10f)

Definition at line 110 of file electrokinetics/generated_kernels/philox_rand.h.

TWOPOW53_INV_DOUBLE

#define TWOPOW53_INV_DOUBLE   (1.1102230246251565e-16)

Definition at line 109 of file electrokinetics/generated_kernels/philox_rand.h.

Typedef Documentation

uint32

typedef std::uint32_t uint32

Definition at line 120 of file electrokinetics/generated_kernels/philox_rand.h.

uint64

typedef std::uint64_t uint64

Definition at line 121 of file electrokinetics/generated_kernels/philox_rand.h.

Function Documentation

_philox4x32bumpkey()

QUALIFIERS void _philox4x32bumpkey

(

uint32 *

key

)

Definition at line 169 of file electrokinetics/generated_kernels/philox_rand.h.

References PHILOX_W32_0, PHILOX_W32_1, and stream.

Referenced by philox_double2(), and philox_float4().

_philox4x32round()

QUALIFIERS void _philox4x32round	(	uint32 *	ctr,
		uint32 *	key
	)

Definition at line 157 of file electrokinetics/generated_kernels/philox_rand.h.

References mulhilo32(), PHILOX_M4x32_0, PHILOX_M4x32_1, and stream.

Referenced by philox_double2(), and philox_float4().

_uniform_double_hq()

QUALIFIERS double _uniform_double_hq	(	uint32	x,
		uint32	y
	)

Definition at line 174 of file electrokinetics/generated_kernels/philox_rand.h.

References TWOPOW53_INV_DOUBLE.

Referenced by philox_double2().

mulhilo32()

QUALIFIERS uint32 mulhilo32	(	uint32	a,
		uint32	b,
		uint32 *	hip
	)

Definition at line 135 of file electrokinetics/generated_kernels/philox_rand.h.

References stream.

Referenced by _philox4x32round().

philox_double2()

QUALIFIERS void philox_double2	(	uint32	ctr0,
		uint32	ctr1,
		uint32	ctr2,
		uint32	ctr3,
		uint32	key0,
		uint32	key1,
		double &	rnd1,
		double &	rnd2
	)

Definition at line 179 of file electrokinetics/generated_kernels/philox_rand.h.

References _philox4x32bumpkey(), _philox4x32round(), _uniform_double_hq(), and stream.

Referenced by walberla::pystencils::internal_diffusivefluxkernelthermalized_double_precision_cuda_diffusivefluxkernelthermalized_double_precision_cuda::__launch_bounds__(), walberla::pystencils::internal_diffusivefluxkernelwithelectrostaticthermalized_double_precision_cuda_diffusivefluxkernelwithelectrostaticthermalized_double_precision_cuda::__launch_bounds__(), walberla::pystencils::internal_streamcollidesweepthermalizeddoubleprecisioncuda_streamcollidesweepthermalizeddoubleprecisioncuda::__launch_bounds__(), walberla::pystencils::internal_0f4fef9c62f0d4e3c1700727b32f958f::diffusivefluxkernelthermalized_double_precision_diffusivefluxkernelthermalized_double_precision(), walberla::pystencils::internal_1ba80591fca01bd4852b82a8b7a2ca49::diffusivefluxkernelwithelectrostaticthermalized_double_precision_diffusivefluxkernelwithelectrostaticthermalized_double_precision(), walberla::pystencils::internal_fa53b6994358d65dbc792fd71884c2e7::streamcollidesweepthermalizeddoubleprecision_streamcollidesweepthermalizeddoubleprecision(), and walberla::pystencils::internal_b312c2da0affb0ff73dd81300a784e62::streamcollidesweepthermalizeddoubleprecisionavx_streamcollidesweepthermalizeddoubleprecisionavx().

philox_float4()

QUALIFIERS void philox_float4	(	uint32	ctr0,
		uint32	ctr1,
		uint32	ctr2,
		uint32	ctr3,
		uint32	key0,
		uint32	key1,
		float &	rnd1,
		float &	rnd2,
		float &	rnd3,
		float &	rnd4
	)

Definition at line 218 of file electrokinetics/generated_kernels/philox_rand.h.

References _philox4x32bumpkey(), _philox4x32round(), stream, and TWOPOW32_INV_FLOAT.

Referenced by walberla::pystencils::internal_diffusivefluxkernelthermalized_single_precision_cuda_diffusivefluxkernelthermalized_single_precision_cuda::__launch_bounds__(), walberla::pystencils::internal_diffusivefluxkernelwithelectrostaticthermalized_single_precision_cuda_diffusivefluxkernelwithelectrostaticthermalized_single_precision_cuda::__launch_bounds__(), walberla::pystencils::internal_streamcollidesweepthermalizedsingleprecisioncuda_streamcollidesweepthermalizedsingleprecisioncuda::__launch_bounds__(), walberla::pystencils::internal_13067439141d91943f586adb1c937d5b::diffusivefluxkernelthermalized_single_precision_diffusivefluxkernelthermalized_single_precision(), walberla::pystencils::internal_e04f3d5b3f93f09e4de6aba968e70d10::diffusivefluxkernelwithelectrostaticthermalized_single_precision_diffusivefluxkernelwithelectrostaticthermalized_single_precision(), walberla::pystencils::internal_117eb60e8d249794b47e39bf52c9e4fe::streamcollidesweepthermalizedsingleprecision_streamcollidesweepthermalizedsingleprecision(), and walberla::pystencils::internal_482af0085ade5d86c474548ac4b32084::streamcollidesweepthermalizedsingleprecisionavx_streamcollidesweepthermalizedsingleprecisionavx().