added gadget_product benchmark

rlwe/Cargo.toml

@@ -6,6 +6,11 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
+criterion = {workspace = true}
 base2k = {path="../base2k"}
 sampling = {path="../sampling"}
 rand_distr = {workspace = true}
+
+[[bench]]
+name = "gadget_product"
+harness = false

rlwe/benches/gadget_product.rs

@@ -0,0 +1,133 @@
+use base2k::{
+    Encoding, FFT64, Infos, Module, Sampling, Scalar, SvpPPolOps, VecZnx, VecZnxBig, VecZnxDft,
+    VecZnxOps,
+};
+use criterion::{BenchmarkId, Criterion, criterion_group, criterion_main};
+use rlwe::{
+    ciphertext::{Ciphertext, GadgetCiphertext},
+    decryptor::{Decryptor, decrypt_rlwe_thread_safe, decrypt_rlwe_thread_safe_tmp_byte},
+    elem::Elem,
+    encryptor::{
+        EncryptorSk, encrypt_grlwe_sk_thread_safe, encrypt_grlwe_sk_tmp_bytes,
+        encrypt_rlwe_sk_tmp_bytes,
+    },
+    evaluator::{gadget_product_inplace_thread_safe, gadget_product_tmp_bytes},
+    key_generator::{gen_switching_key_thread_safe, gen_switching_key_thread_safe_tmp_bytes},
+    keys::{SecretKey, SwitchingKey},
+    parameters::{Parameters, ParametersLiteral},
+    plaintext::Plaintext,
+};
+use sampling::source::{Source, new_seed};
+
+fn gadget_product_inplace(c: &mut Criterion) {
+    fn gadget_product<'a>(
+        module: &'a Module,
+        elem: &'a mut Elem,
+        gadget_ct: &'a GadgetCiphertext,
+        tmp_bytes: &'a mut [u8],
+    ) -> Box<dyn FnMut() + 'a> {
+        Box::new(move || {
+            gadget_product_inplace_thread_safe::<true>(module, elem, gadget_ct, tmp_bytes)
+        })
+    }
+
+    let mut b: criterion::BenchmarkGroup<'_, criterion::measurement::WallTime> =
+        c.benchmark_group("gadget_product_inplace");
+
+    for log_n in 10..11 {
+        let params_lit: ParametersLiteral = ParametersLiteral {
+            log_n: log_n,
+            log_q: 54,
+            log_p: 0,
+            log_base2k: 7,
+            log_scale: 20,
+            xe: 3.2,
+            xs: 128,
+        };
+
+        let params: Parameters = Parameters::new::<FFT64>(&params_lit);
+
+        let mut tmp_bytes: Vec<u8> = vec![
+            0u8;
+            params.decrypt_rlwe_thread_safe_tmp_byte(params.log_q())
+                | params.encrypt_rlwe_sk_tmp_bytes(params.log_q())
+                | gen_switching_key_thread_safe_tmp_bytes(
+                    params.module(),
+                    params.log_base2k(),
+                    params.limbs_q(),
+                    params.log_q()
+                )
+                | gadget_product_tmp_bytes(
+                    params.module(),
+                    params.log_base2k(),
+                    params.log_q(),
+                    params.log_q(),
+                    params.limbs_q(),
+                    params.log_qp()
+                )
+                | encrypt_grlwe_sk_tmp_bytes(
+                    params.module(),
+                    params.log_base2k(),
+                    params.limbs_qp(),
+                    params.log_qp()
+                )
+        ];
+
+        let mut source: Source = Source::new([3; 32]);
+
+        let mut sk0: SecretKey = SecretKey::new(params.module());
+        let mut sk1: SecretKey = SecretKey::new(params.module());
+
+        let mut source_xe: Source = Source::new([4; 32]);
+        let mut source_xa: Source = Source::new([5; 32]);
+
+        let mut sk0_svp_ppol: base2k::SvpPPol = params.module().new_svp_ppol();
+        params.module().svp_prepare(&mut sk0_svp_ppol, &sk0.0);
+
+        let mut sk1_svp_ppol: base2k::SvpPPol = params.module().new_svp_ppol();
+        params.module().svp_prepare(&mut sk1_svp_ppol, &sk1.0);
+
+        let mut gadget_ct: GadgetCiphertext = GadgetCiphertext::new(
+            params.module(),
+            params.log_base2k(),
+            params.limbs_q(),
+            params.log_qp(),
+        );
+
+        encrypt_grlwe_sk_thread_safe(
+            params.module(),
+            &mut gadget_ct,
+            &sk0.0,
+            &sk1_svp_ppol,
+            &mut source_xa,
+            &mut source_xe,
+            params.xe(),
+            &mut tmp_bytes,
+        );
+
+        let mut ct: Ciphertext = params.new_ciphertext(params.log_q());
+
+        params.encrypt_rlwe_sk_thread_safe(
+            &mut ct,
+            None,
+            &sk0_svp_ppol,
+            &mut source_xa,
+            &mut source_xe,
+            &mut tmp_bytes,
+        );
+
+        let runners: [(String, Box<dyn FnMut()>); 1] = [(format!("gadget_product"), {
+            gadget_product(params.module(), &mut ct.0, &gadget_ct, &mut tmp_bytes)
+        })];
+
+        for (name, mut runner) in runners {
+            let id: BenchmarkId = BenchmarkId::new(name, format!("n={}", 1 << log_n));
+            b.bench_with_input(id, &(), |b: &mut criterion::Bencher<'_>, _| {
+                b.iter(&mut runner)
+            });
+        }
+    }
+}
+
+criterion_group!(benches, gadget_product_inplace);
+criterion_main!(benches);