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add simd backend benchmark to fri bench #700

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add simd backend benchmark to fri bench #700

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44 changes: 41 additions & 3 deletions crates/prover/benches/fri.rs
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Original file line number Diff line number Diff line change
@@ -1,13 +1,46 @@
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use stwo_prover::core::backend::simd::column::BaseFieldVec;
use stwo_prover::core::backend::simd::m31::{PackedBaseField, LOG_N_LANES};
use stwo_prover::core::backend::simd::SimdBackend;
use stwo_prover::core::backend::CpuBackend;
use stwo_prover::core::fields::m31::BaseField;
use stwo_prover::core::fields::m31::{BaseField, M31};
use stwo_prover::core::fields::qm31::SecureField;
use stwo_prover::core::fields::secure_column::SecureColumn;
use stwo_prover::core::fri::FriOps;
use stwo_prover::core::poly::circle::{CanonicCoset, PolyOps};
use stwo_prover::core::poly::line::{LineDomain, LineEvaluation};

fn folding_benchmark(c: &mut Criterion) {
fn folding_benchmark_simd(c: &mut Criterion) {
const LOG_SIZE: u32 = 12;
let domain = LineDomain::new(CanonicCoset::new(LOG_SIZE + 1).half_coset());

let evals = LineEvaluation::new(
domain,
SecureColumn {
columns: std::array::from_fn(|i| BaseFieldVec {
data: vec![
PackedBaseField::broadcast(M31::from_u32_unchecked(i as u32));
1 << (LOG_SIZE - LOG_N_LANES)
],
length: 1 << LOG_SIZE,
}),
},
);

let alpha = SecureField::from_u32_unchecked(2213980, 2213981, 2213982, 2213983);
let twiddles = SimdBackend::precompute_twiddles(domain.coset());
c.bench_function(&format!("simd fold_line 2^{LOG_SIZE}"), |b| {
b.iter(|| {
black_box(SimdBackend::fold_line(
black_box(&evals),
black_box(alpha),
&twiddles,
));
})
});
}

fn folding_benchmark_cpu(c: &mut Criterion) {
const LOG_SIZE: u32 = 12;
let domain = LineDomain::new(CanonicCoset::new(LOG_SIZE + 1).half_coset());
let evals = LineEvaluation::new(
Expand All @@ -20,7 +53,7 @@ fn folding_benchmark(c: &mut Criterion) {
);
let alpha = SecureField::from_u32_unchecked(2213980, 2213981, 2213982, 2213983);
let twiddles = CpuBackend::precompute_twiddles(domain.coset());
c.bench_function("fold_line", |b| {
c.bench_function(&format!("cpu fold_line 2^{LOG_SIZE}"), |b| {
b.iter(|| {
black_box(CpuBackend::fold_line(
black_box(&evals),
Expand All @@ -31,5 +64,10 @@ fn folding_benchmark(c: &mut Criterion) {
});
}

fn folding_benchmark(c: &mut Criterion) {
folding_benchmark_simd(c);
folding_benchmark_cpu(c);
}

criterion_group!(benches, folding_benchmark);
criterion_main!(benches);