mrg32k3a
Description
The combined multiple recursive pseudorandom number generator MRG32k3a [L’Ecuyer99a].
API
Syntax
namespace oneapi::mkl::rng::device {
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 the vector that will be produced by the generate function with this engine. VecSize values can be 1, 2, 3, 4, 8, or 16 as the sycl:vec class size. By default, VecSize = 1; for this case, the generate function returns a single random number. |
Constructors Input Parameters
Name |
Type |
Description |
---|---|---|
seed |
std::uint32_tstd::initializer_list<std::uint32_t> |
Initial conditions of the engine state. |
offset |
std::uint64_tstd::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 the detailed descriptions.