Random

struct Random[rounds: Int = 10]

A high-performance random number generator using the Philox algorithm.

The Philox algorithm is a counter-based random number generator designed for parallel computing. It provides high-quality random numbers with excellent statistical properties and works efficiently on both CPU and GPU.

Parameters

• ​rounds (Int): Number of mixing rounds to perform. Higher values provide better statistical quality at the cost of performance. Default is 10.

Implemented traits

AnyType, Copyable, ImplicitlyDestructible, Movable

Methods

__init__

__init__(out self, *, seed: UInt64 = UInt64(0), subsequence: UInt64 = UInt64(0), offset: UInt64 = UInt64(0))

Initialize the random number generator.

Args:

• ​seed (UInt64): Initial seed value for reproducible sequences. Default is 0.
• ​subsequence (UInt64): Subsequence number for generating independent streams. Default is 0.
• ​offset (UInt64): Starting offset in the sequence. Default is 0.

step

step(mut self) -> SIMD[DType.uint32, 4]

Generate 4 random 32-bit unsigned integers.

Returns:

SIMD: SIMD vector containing 4 random 32-bit unsigned integers.

step_uniform

step_uniform(mut self) -> SIMD[DType.float32, 4]

Generate 4 random floating point numbers uniformly distributed in [0,1).

Returns:

SIMD: SIMD vector containing 4 random float32 values in range [0,1).