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oneapi::mkl::rng::device::mrg32k3a¶

Description ¶

The combined multiple recursive pseudorandom number generator MRG32k3a [L’Ecuyer99a].

API ¶

Syntax¶

template<std::int32_t VecSize = 1>
  class mrg32k3a {
  public:
  static constexpr std::uint32_t default_seed = 1;
  static constexpr std::int32_t vec_size = VecSize;
  mrg32k3a() : mrg32k3a(default_seed) {}
  mrg32k3a(std::uint32_t seed, std::uint64_t offset = 0);
  mrg32k3a(std::initializer_list<std::uint32_t> seed, std::uint64_t offset = 0);
  mrg32k3a(std::uint32_t seed, std::initializer_list<std::uint64_t> offset);
  mrg32k3a(std::initializer_list<std::uint32_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, a single random number is returned by the `oneapi::mkl::rng::device::generate` function.

Constructors Input Parameters¶

Name	Type	Description
seed	`std::uint32_t` `std::initializer_list<std::uint32_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.

Device Engines (Basic Random Number Generators) oneapi::mkl::rng::device::philox4x32x10