github/concrete
1
1
Fork 0
mirror of https://github.com/zama-ai/concrete.git synced 2026-02-09 03:55:04 -05:00
Code Issues Packages Projects Releases Wiki Activity

fix(fft_noise): overflow on b = 1 << b_log

Browse Source
This commit is contained in:
rudy
2022-03-23 14:37:38 +01:00
committed by rudy-6-4
parent ced60b377d
commit 9689e52097
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/noise_estimator/operators/atomic_pattern.rs
View File

@@ -56,7 +56,7 @@ pub fn fft_noise<W: UnsignedInteger>(
) -> Variance {
// https://github.com/zama-ai/concrete-optimizer/blob/prototype/python/optimizer/noise_formulas/bootstrap.py#L25
let n = internal_ks_output_lwe_dimension as f64;
let b = (1_u64 << br_decomposition_base_log) as f64;
let b = 2_f64.powi(br_decomposition_base_log as i32);
let l = br_decomposition_level_count as f64;
let big_n = glwe_polynomial_size as f64;
// 22 = 2 x 11, 11 = 64 -53