Developer Reference

Contents

vRngUniformBits64

Generates uniformly distributed bits in 64-bit chunks.

Syntax

status
=
viRngUniformBits64
(
method
,
stream
,
n
,
r
);
Include Files
  • mkl.h
Input Parameters
Name
Type
Description
method
const MKL_INT
Generation method; the specific value is
VSL_RNG_METHOD_UNIFORMBITS64_STD
stream
VSLStreamStatePtr
Pointer to the stream state structure
n
const MKL_INT
Number of random values to be generated
Output Parameters
Name
Type
Description
r
unsigned MKL_INT64*
Vector of
n
64-bit random integer numbers with uniform bit distribution.
Description
The
vRngUniformBits64
function generates uniformly distributed bits in 64-bit chunks. Unlike
vRngUniformBits
, which provides the output of underlying integer recurrence and does not guarantee uniform distribution across bits,
vRngUniformBits64
is designed to ensure each bit in the 64-bit chunk is uniformly distributed. See VS Notes for details.
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.
Return Values
VSL_ERROR_OK, VSL_STATUS_OK
Indicates no error, execution is successful.
VSL_ERROR_NULL_PTR
stream
is a
NULL
pointer.
VSL_RNG_ERROR_BAD_STREAM
stream
is not a valid random stream.
VSL_RNG_ERROR_BRNG_NOT_SUPPORTED
BRNG is not supported by the function.
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.

Product and Performance Information

1

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