From 0fafb7813abfcda34fb3e411daecfea0eb0f7196 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fran=C3=A7ois=20Garillot?= <francois@garillot.net>
Date: Tue, 13 Feb 2024 10:46:08 -0500
Subject: [PATCH] fix: gate parallelism on cuda

---
 src/spartan/batched_ppsnark.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/spartan/batched_ppsnark.rs b/src/spartan/batched_ppsnark.rs
index fa369ba6..30d9268e 100644
--- a/src/spartan/batched_ppsnark.rs
+++ b/src/spartan/batched_ppsnark.rs
@@ -226,6 +226,13 @@ impl<E: Engine, EE: EvaluationEngineTrait<E>> BatchedRelaxedR1CSSNARKTrait<E>
     let comms_Az_Bz_Cz = polys_Az_Bz_Cz
       .par_iter()
       .map(|[Az, Bz, Cz]| {
+        #[cfg(features = "cuda")]
+        {
+          let comm_Az = E::CE::commit(ck, Az);
+                  let comm_Bz = E::CE::commit(ck, Bz);
+                  let comm_Cz = E::CE::commit(ck, Cz);
+        }
+        #[cfg(not(features = "cuda"))]
         let (comm_Az, (comm_Bz, comm_Cz)) = rayon::join(
           || E::CE::commit(ck, Az),
           || rayon::join(|| E::CE::commit(ck, Bz), || E::CE::commit(ck, Cz)),