From 7f5d532a9c4d2b7355e848d4f7ce847782207eef Mon Sep 17 00:00:00 2001
From: rensilin <752318213@qq.com>
Date: Tue, 10 Dec 2019 16:34:24 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20fail=20to=20call=20ZeroCopyTensor::mutab?=
 =?UTF-8?q?le=5Fdata()=20when=20device=5Fid=20is=20no=E2=80=A6=20(#21461)?=
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* ZeroCopyTensor::mutable_data in the right device, test=develop

* add unittest for zerocopy, test=develop
---
 paddle/fluid/inference/api/details/zero_copy_tensor.cc | 2 +-
 paddle/fluid/inference/tests/api/trt_fc_prelu_test.cc  | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/paddle/fluid/inference/api/details/zero_copy_tensor.cc b/paddle/fluid/inference/api/details/zero_copy_tensor.cc
index 59ad2c09c0..271b0fcbb7 100644
--- a/paddle/fluid/inference/api/details/zero_copy_tensor.cc
+++ b/paddle/fluid/inference/api/details/zero_copy_tensor.cc
@@ -52,7 +52,7 @@ T *ZeroCopyTensor::mutable_data(PaddlePlace place) {
       return tensor->mutable_data<T>(platform::CPUPlace());
     }
     case static_cast<int>(PaddlePlace::kGPU): {
-      return tensor->mutable_data<T>(platform::CUDAPlace());
+      return tensor->mutable_data<T>(platform::CUDAPlace(device_));
     }
     default:
       PADDLE_THROW("Unsupported place: %d", static_cast<int>(place));
diff --git a/paddle/fluid/inference/tests/api/trt_fc_prelu_test.cc b/paddle/fluid/inference/tests/api/trt_fc_prelu_test.cc
index cb00c9c21c..37a443e0f6 100644
--- a/paddle/fluid/inference/tests/api/trt_fc_prelu_test.cc
+++ b/paddle/fluid/inference/tests/api/trt_fc_prelu_test.cc
@@ -51,6 +51,7 @@ TEST(ZeroCopyTensor, uint8) {
   input_t->Reshape({batch_size, length});
   input_t->copy_from_cpu(input);
   input_t->type();
+  input_t->mutable_data<uint8_t>(PaddlePlace::kGPU);
 
   ASSERT_TRUE(predictor->ZeroCopyRun());
 }
-- 
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