#include <AMReX_Arena.H>
#include <AMReX_BLFort.H>
#include <AMReX_Print.H>
#include <AMReX_Random.H>
#include <AMReX_Gpu.H>
#include <AMReX_OpenMP.H>
#include <set>
#include <random>
#include <limits>

Namespaces
	amrex

Functions
void	amrex::InitRandom (ULong cpu_seed, int nprocs=ParallelDescriptor::NProcs(), ULong gpu_seed=detail::DefaultGpuSeed())
	Set the seed of the random number generator. More...

Real	amrex::RandomNormal (Real mean, Real stddev)
	Generate a psuedo-random double from a normal distribution. More...

Real	amrex::Random ()
	Generate a psuedo-random double from uniform distribution. More...

unsigned int	amrex::RandomPoisson (Real lambda)
	Generate a psuedo-random integer from a Poisson distribution. More...

Real	amrex::RandomGamma (Real alpha, Real beta)
	Generate a psuedo-random floating point number from the Gamma distribution. More...

unsigned int	amrex::Random_int (unsigned int n)
	Generates one pseudorandom unsigned integer which is uniformly distributed on [0,n-1]-interval for each call. More...

ULong	amrex::Random_long (ULong n)
	Generates one pseudorandom unsigned long which is uniformly distributed on [0,n-1]-interval for each call. More...

void	amrex::SaveRandomState (std::ostream &os)
	Save and restore random state. More...

void	amrex::RestoreRandomState (std::istream &is, int nthreads_old, int nstep_old)

void	amrex::UniqueRandomSubset (Vector< int > &uSet, int setSize, int poolSize, bool printSet=false)
	Create a unique subset of random numbers from a pool of integers in the range [0, poolSize - 1] the set will be in the order they are found setSize must be <= poolSize uSet will be resized to setSize if you want all processors to have the same set, call this on one processor and broadcast the array. More...

void	amrex::ResetRandomSeed (ULong cpu_seed, ULong gpu_seed)

void	amrex::DeallocateRandomSeedDevArray ()

void	amrex::FillRandom (Real *p, Long N)

void	amrex::FillRandomNormal (Real *p, Long N, Real mean, Real stddev)
	Fill random numbers from normal distribution. More...

double	amrex_random ()

amrex::Long	amrex_random_int (amrex::Long n)

Variables
amrex::randState_t *	amrex::gpu_rand_state = nullptr

Namespaces

Functions

Variables

Function Documentation

◆ amrex_random()

◆ amrex_random_int()