Intel® oneAPI Math Kernel Library Developer Reference - C
Generates random numbers with uniform distribution.
status = vsRngUniform( method, stream, n, r, a, b );
status = vdRngUniform( method, stream, n, r, a, b );
The vRngUniform function generates random numbers uniformly distributed over the interval [a, b), where a, b are the left and right bounds of the interval, respectively, and a, b∈R ; a < b.
The probability density function is given by:
The cumulative distribution function is as follows:
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Name |
Type |
Description |
---|---|---|
method |
const MKL_INT |
Generation method; the specific values are as follows: VSL_RNG_METHOD_UNIFORM_STD VSL_RNG_METHOD_UNIFORM_STD_ACCURATE Standard method. |
stream |
VSLStreamStatePtr |
Pointer to the stream state structure |
n |
const MKL_INT |
Number of random values to be generated. |
a |
const float for vsRngUniform const double for vdRngUniform |
Left bound a. |
b |
const float for vsRngUniform const double for vdRngUniform |
Right bound b. |
Name |
Type |
Description |
---|---|---|
r |
float* for vsRngUniform double* for vdRngUniform |
Vector of n random numbers uniformly distributed over the interval [a,b) |
Indicates no error, execution is successful.
stream is a NULL pointer.
stream is not a valid random stream.
Callback function for an abstract BRNG returns an invalid number of updated entries in a buffer, that is, < 0 or > nmax .
Callback function for an abstract BRNG returns 0 as the number of updated entries in a buffer.
Period of the generator has been exceeded.
Number of retries to generate a random number by using non-deterministic random number generator exceeds threshold.
ARS-5 random number generator is not supported on the CPU running the application.