philox4x32x10#

Description#

A Philox4x32-10 counter-based pseudorandom number generator [Salmon11].

API#

Syntax#

namespace oneapi::mkl::rng::device {
  template<std::int32_t VecSize = 1>
  class philox4x32x10 {
  public:
    static constexpr std::uint64_t default_seed = 1;
    static constexpr std::int32_t vec_size = VecSize;

    philox4x32x10() : philox4x32x10(default_seed) {}
    philox4x32x10(std::uint64_t seed, std::uint64_t offset = 0);
    philox4x32x10(std::initializer_list<std::uint64_t> seed, std::uint64_t offset = 0);
    philox4x32x10(std::uint64_t seed, std::initializer_list<std::uint64_t> offset);
    philox4x32x10(std::initializer_list<std::uint64_t> seed, std::initializer_list<std::uint64_t> offset);
  };
}

Include Files#

  • oneapi/mkl/rng/device.hpp

Template Parameters#

Name

Type

Description

VecSize

std::int32_t

Describes the size of vector which will be produced by generate function by this engine. VecSize values may be 1, 2, 3, 4, 8, 16 as sycl::vec class size. By default VecSize = 1, for this case single random number is returned by the generate function.

Constructors Input Parameters#

Name

Type

Description

seed

std::uint64_t

std::initializer_list<std::uint64_t>

Initial conditions of the engine state.

offset

std::uint64_t

std::initializer_list<std::uint64_t>

Number of skipped elements, for initializer_list offset is calculated as: num_to_skip[0]+ num_to_skip [1]*264+ num_to_skip [2] * 2128+ … +num_to_skip[n-1]*264 * (n-1).

See VS Notes for detailed descriptions.