logos-storage/plonky2
1
0
Fork 0
mirror of https://github.com/logos-storage/plonky2.git synced 2026-01-03 22:33:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

Compute the three quotient polys in parallel

Browse Source 
Reduces that step from ~0.19s to ~0.09s on my laptop.
This commit is contained in:
Daniel Lubarov 2021-05-23 22:21:27 -07:00
parent c108dc6d81
commit 26845c5910
1 changed files with 13 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
src/prover.rs
View File

@ -93,19 +93,22 @@ pub(crate) fn prove<F: Field + Extendable<D>, const D: usize>(
);
// Compute the quotient polynomials, aka `t` in the Plonk paper.
let quotient_polys_commitment = timed!(
{
let mut all_quotient_poly_chunks = Vec::with_capacity(num_challenges * quotient_degree);
for vanishing_poly in vanishing_polys.into_iter() {
let all_quotient_poly_chunks = timed!(
vanishing_polys
.into_par_iter()
.flat_map(|vanishing_poly| {
let vanishing_poly_coeff = ifft(vanishing_poly);
let quotient_poly_coeff = vanishing_poly_coeff.divide_by_z_h(degree);
// Split t into degree-n chunks.
let quotient_poly_coeff_chunks = quotient_poly_coeff.chunks(degree);
all_quotient_poly_chunks.extend(quotient_poly_coeff_chunks);
}
ListPolynomialCommitment::new(all_quotient_poly_chunks, fri_config.rate_bits, true)
},
"to compute quotient polys and commit to them"
quotient_poly_coeff.chunks(degree)
})
.collect(),
"to compute quotient polys"
);
let quotient_polys_commitment = timed!(
ListPolynomialCommitment::new(all_quotient_poly_chunks, fri_config.rate_bits, true),
"to commit to quotient polys"
);
challenger.observe_hash(&quotient_polys_commitment.merkle_tree.root);