vRngUniform Continuous Distribution Generators
vRngUniform
Continuous Distribution GeneratorsGenerates random numbers with uniform distribution.
Syntax
status
=
vsRngUniform
(
method
,
stream
,
n
,
r
,
a
,
b
);
status
=
vdRngUniform
(
method
,
stream
,
n
,
r
,
a
,
b
);
Include Files
- mkl.h
Description
The are the left and right bounds of the interval, respectively, and .
vRngUniform
function generates random numbers uniformly distributed over the interval [
, where a
, b
)a
, b
a
, b
∈
R
; a
< b
The probability density function is given by:

The cumulative distribution function is as follows:

Optimization Notice
|
---|
Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.
Notice revision #20110804
|
This notice covers the following instruction sets: SSE2, SSE4.2, AVX2, AVX-512.
Input Parameters
Name | Type | Description |
---|---|---|
method | const MKL_INT | Generation method; the specific values are as follows:
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 . |
Output Parameters
Name | Type | Description |
---|---|---|
r | float* for vsRngUniform double* for vdRngUniform | Vector of n random numbers uniformly distributed over the interval [ a ,b ) |
Return Values
- VSL_ERROR_OK, VSL_STATUS_OK
- Indicates no error, execution is successful.
- VSL_ERROR_NULL_PTR
- streamis aNULLpointer.
- VSL_RNG_ERROR_BAD_STREAM
- streamis not a valid random stream.
- VSL_RNG_ERROR_BAD_UPDATE
- Callback function for an abstract BRNG returns an invalid number of updated entries in a buffer, that is,< 0or> nmax.
- VSL_RNG_ERROR_NO_NUMBERS
- Callback function for an abstract BRNG returns 0 as the number of updated entries in a buffer.
- VSL_RNG_ERROR_QRNG_PERIOD_ELAPSED
- Period of the generator has been exceeded.
- VSL_RNG_ERROR_NONDETERM_NRETRIES_EXCEEDED
- Number of retries to generate a random number by using non-deterministic random number generator exceeds threshold.
- VSL_RNG_ERROR_ARS5_NOT_SUPPORTED
- ARS-5 random number generator is not supported on the CPU running the application.