From 5679d3ad42533e6f367fdd746b60e3b16fd692c7 Mon Sep 17 00:00:00 2001
From: lyang24 <lanqingy93@gmail.com>
Date: Thu, 9 Apr 2026 16:08:46 -0700
Subject: [PATCH] HNSW Cagra base-level entrypoint sampling parallel (#5068)

Summary:
fix bug to make parallel happens

Pull Request resolved: https://github.com/facebookresearch/faiss/pull/5068

Reviewed By: junjieqi

Differential Revision: D100213935

Pulled By: alibeklfc

fbshipit-source-id: 31f4d8b05843d0b97f0539f69db0aebecb0063a8
---
 faiss/IndexHNSW.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/faiss/IndexHNSW.cpp b/faiss/IndexHNSW.cpp
index a0ff524c1..017dda615 100644
--- a/faiss/IndexHNSW.cpp
+++ b/faiss/IndexHNSW.cpp
@@ -1042,7 +1042,7 @@ void IndexHNSWCagra::search(
         std::vector<storage_idx_t> nearest(n);
         std::vector<float> nearest_d(n);
 
-#pragma omp for
+#pragma omp parallel for
         for (idx_t i = 0; i < n; i++) {
             std::unique_ptr<DistanceComputer> dis(
                     storage_distance_computer(this->storage));