pigeons-spi Skill

name: pigeons-spi
description: Pigeons.jl parallel tempering MCMC with Strong Parallelism Invariance (SPI) via SplittableRandoms
version: 1.0.0
trit: +1  # PLUS - generates samples, produces output

Overview

Pigeons.jl implements Strong Parallelism Invariance (SPI): identical results regardless of number of parallel workers. This is the pattern Gay.jl adopts for deterministic color generation.

Key Insight: same seed → same samples → same colors

SPI Pattern: SplittableRandoms

The core innovation: determinism via splittable random streams.