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update rand to 0.10 and rand_distr to 0.6 #37

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Merged
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Oct 1, 2026
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update rand to 0.10 and rand_distr to 0.6 #37

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4 changes: 2 additions & 2 deletions Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -16,8 +16,8 @@ name = "fastnn"
path = "src/lib.rs"

[dependencies]
rand = "0.8" # weight init, dropout masks, shuffling
rand_distr = "0.4" # normal distribution
rand = "0.10" # weight init, dropout masks, shuffling
rand_distr = "0.6" # normal distribution
rayon = "1.8" # data parallelism on the CPU paths
libm = "0.2" # erff, for exact GELU
ureq = "2.9" # dataset download
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8 changes: 4 additions & 4 deletions src/rng.rs
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Expand Up @@ -6,11 +6,11 @@
use std::cell::RefCell;

use rand::rngs::StdRng;
use rand::{Rng, SeedableRng};
use rand::{RngExt, SeedableRng};
use rand_distr::StandardNormal;

thread_local! {
static RNG: RefCell<StdRng> = RefCell::new(StdRng::from_entropy());
static RNG: RefCell<StdRng> = RefCell::new(rand::make_rng());
}

/// Reseed this thread's generator so a run reproduces exactly.
Expand All @@ -25,7 +25,7 @@ pub fn with_rng<T>(f: impl FnOnce(&mut StdRng) -> T) -> T {

/// `n` samples from the uniform distribution on `[lo, hi)`.
pub fn uniform(n: usize, lo: f32, hi: f32) -> Vec<f32> {
with_rng(|rng| (0..n).map(|_| rng.gen_range(lo..hi)).collect())
with_rng(|rng| (0..n).map(|_| rng.random_range(lo..hi)).collect())
}

/// `n` samples from the standard normal distribution.
Expand All @@ -35,7 +35,7 @@ pub fn normal(n: usize) -> Vec<f32> {

/// `n` draws from Bernoulli(`p`), as a bitmask of `true` = kept.
pub fn bernoulli(n: usize, p: f32) -> Vec<bool> {
with_rng(|rng| (0..n).map(|_| rng.gen::<f32>() < p).collect())
with_rng(|rng| (0..n).map(|_| rng.random::<f32>() < p).collect())
}

/// Shuffle in place, using this thread's generator so `manual_seed` covers it.
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