Random

2025-10-17

2 min read time

Applies to Linux

This page provides C++ class references for the publicly-exposed elements of the random package.

Random State

#include <raft/random/rng_state.hpp>

namespace raft::random

struct RngState

The RNG state used to keep RNG state around on the host.

Public Members

GeneratorType type = {GeneratorType::GenPC}

The generator type. PCGenerator has been extensively tested and is faster than Philox, thus we use it as the default.

Contents:

• Data Generation
  • make_blobs
  • make_regression
  • rmat
• Univariate Random Sampling
  • uniform()
  • uniformInt()
  • normal()
  • normalInt()
  • normalTable()
  • fill()
  • bernoulli()
  • scaled_bernoulli()
  • gumbel()
  • lognormal()
  • logistic()
  • exponential()
  • rayleigh()
  • laplace()
  • discrete()
• Multi-Variable Random Sampling
  • Multi-Variable Gaussian
• Sampling Without Replacement
  • sample_without_replacement()
  • sample_without_replacement()
  • permute()
  • permute()