Visible to Intel only — GUID: GUID-001840B4-6C07-4601-B2DA-1C658C704265
Visible to Intel only — GUID: GUID-001840B4-6C07-4601-B2DA-1C658C704265
oneapi::mkl::rng::geometric
Generates geometrically distributed random values.
Description
The oneapi::mkl::rng::geometric class object is used in the oneapi::mkl::rng::generate function to provide geometrically distributed random numbers with probability p of a single trial success, where p∈R; 0 < p < 1.
A geometrically distributed variate represents the number of independent Bernoulli trials preceding the first success. The probability of a single Bernoulli trial success is p.
The probability distribution is given by:
P(X = k) = p·(1 - p)k, k∈ {0,1,2, … }.
The cumulative distribution function is as follows:
Product and Performance Information |
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Performance varies by use, configuration and other factors. Learn more at https://www.intel.com/PerformanceIndex. Notice revision #20201201 |
API
Syntax
template<typename IntType = std::int32_t, typename Method = geometric_method::by_default> class geometric { public: using method_type = Method; using result_type = IntType; geometric(): geometric(0.5){} explicit geometric(float p); explicit geometric(const param_type& pt); float p() const; param_type param() const; void param(const param_type& pt); };
Devices supported: CPU and GPU.
Include Files
oneapi/mkl/rng.hpp
Template Parameters
Name |
Description |
---|---|
typename IntType = std::int32_t |
Type of the produced values. The specific values are as follows: std::int32_t std::uint32_t |
typename Method = oneapi::mkl::rng:: geometric_method:: by_default |
Generation method. The specific values are as follows: oneapi::mkl::rng::geometric_method::icdf See brief descriptions of the methods in Distributions Template Parameter Method. |
Input Parameters
Name |
Type |
Description |
---|---|---|
p |
float |
Success probability p of a trial. |