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oneapi::mkl::rng::exponential

Generates exponentially distributed random numbers.

Description

The
oneapi::mkl::rng::exponential
class object is used in
oneapi::mkl::rng::generate
function to provide random numbers with exponential distribution that has displacement a and scalefactor
β
, where LaTex Math image..
The probability density function is given by:
LaTex Math image.
The cumulative distribution function is as follows:
LaTex Math image.
Product and Performance Information
Performance varies by use, configuration and other factors. Learn more at https://www.intel.com/PerformanceIndex. Notice revision #20201201

API

Syntax
template<typename RealType = float, typename Method = exponential_method::by_default> class exponential { public: using method_type = Method; using result_type = RealType; exponential(): exponential((RealType)0.0, (RealType)1.0){} explicit exponential(RealType a, RealType beta); explicit exponential(const param_type& pt); RealType a() const; RealType beta() const; param_type param() const; void param(const param_type& pt); };
Devices supported: Host, CPU, and GPU.
Include Files
  • oneapi/mkl/rng.hpp
Template Parameters
typename RealType = float
Type of the produced values. The specific values are as follows:
float
double
typename Method = oneapi::mkl::rng::exponential_method::by_default
Generation method. The specific values are as follows:
oneapi::mkl::rng::exponential_method::icdf
oneapi::mkl::rng::exponential_method::icdf_accurate
See brief descriptions of the methods in Distributions Template Parameter Method.
Input Parameters
Name
Type
Description
a
RealType (float, double)
Displacement
a
.
beta
RealType (float, double)
Scalefactor
β
.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.