From 5329187df1a0cd9d40aab2d4e3810f0c8fa47bf2 Mon Sep 17 00:00:00 2001
From: xiongkun <xiongkun03@baidu.com>
Date: Thu, 17 Nov 2022 16:03:58 +0800
Subject: [PATCH] fix the thread number to ensure deterministic of embedding
 kernel (#48073)

---
 paddle/phi/kernels/gpu/embedding_grad_kernel.cu | 1 +
 1 file changed, 1 insertion(+)

diff --git a/paddle/phi/kernels/gpu/embedding_grad_kernel.cu b/paddle/phi/kernels/gpu/embedding_grad_kernel.cu
index 0cfe2e43d1..8bb00f0759 100644
--- a/paddle/phi/kernels/gpu/embedding_grad_kernel.cu
+++ b/paddle/phi/kernels/gpu/embedding_grad_kernel.cu
@@ -107,6 +107,7 @@ struct EmbeddingGradCUDAFunctor {
       if (FLAGS_cudnn_deterministic) {
         VLOG(2) << "Run grad kernel of embedding with single thread.";
         grids.x = 1;
+        threads.y = 1;
       }
       EmbeddingGrad<T, IdT><<<grids, threads, 0, dev_ctx_.stream()>>>(
           d_table, d_output, ids, N, K, D);
-- 
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