SST
13.0.0
StructuralSimulationToolkit

Implements a lightweight RNG based on XORshift operations. More...
#include "sst/core/rng/xorshift.h"
Public Member Functions  
XORShiftRNG (unsigned int seed)  
Create a new Xorshift RNG with a specified seed. More...  
XORShiftRNG ()  
Creates a new Xorshift using a random seed which is obtained from the system clock. More...  
double  nextUniform () override 
Generates the next random number as a double value between 0 and 1.  
uint32_t  generateNextUInt32 () override 
Generates the next random number as an unsigned 32bit integer.  
uint64_t  generateNextUInt64 () override 
Generates the next random number as an unsigned 64bit integer.  
int64_t  generateNextInt64 () override 
Generates the next random number as a signed 64bit integer.  
int32_t  generateNextInt32 () override 
Generates the next random number as a signed 32bit integer.  
void  seed (uint64_t newSeed) 
Seed the XOR RNG.  
~XORShiftRNG ()  
Destructor for Xorshift.  
Public Member Functions inherited from SST::RNG::Random  
virtual  ~Random () 
Destroys the random number generator.  
Protected Attributes  
uint32_t  x 
uint32_t  y 
uint32_t  z 
uint32_t  w 
Implements a lightweight RNG based on XORshift operations.
We utilize the XORSHIFT algorithm from: http://en.wikipedia.org/wiki/Xorshift. This is a very lightweight and inexpensive RNG.
XORShiftRNG::XORShiftRNG  (  unsigned int  seed  ) 
Create a new Xorshift RNG with a specified seed.
[in]  seed  The seed for this RNG 
References seed().
XORShiftRNG::XORShiftRNG  (  ) 
Creates a new Xorshift using a random seed which is obtained from the system clock.
Note this will give different results on different platforms and between runs.