Optimize emb_eltwise_layernorm_plugin and support fp16 (#27128)

cmake/cuda.cmake

@@ -107,6 +107,9 @@ function(select_nvcc_arch_flags out_variable)
   elseif(${CUDA_ARCH_NAME} STREQUAL "Maxwell")
     set(cuda_arch_bin "50")
   elseif(${CUDA_ARCH_NAME} STREQUAL "Pascal")
+    if (NOT ${CMAKE_CUDA_COMPILER_VERSION} LESS 10.0)
+      add_definitions("-DSUPPORTS_CUDA_FP16")
+    endif()
     set(cuda_arch_bin "60 61")
   elseif(${CUDA_ARCH_NAME} STREQUAL "Volta")
     if (NOT ${CMAKE_CUDA_COMPILER_VERSION} LESS 10.0)

paddle/fluid/inference/tensorrt/convert/emb_eltwise_layernorm.cc

@@ -80,10 +80,10 @@ class EmbEltwiseLayerNormOpConverter : public OpConverter {
     nvinfer1::ILayer* layer = nullptr;
 
     if (engine_->with_dynamic_shape()) {
-      plugin::DynamicPluginTensorRT* plugin = nullptr;
-      plugin = new plugin::EmbEltwiseLayernormPluginDynamic<float>(
+      auto use_fp16 = engine_->WithFp16();
+      auto plugin = new plugin::EmbEltwiseLayernormPluginDynamic(
           input_embs, bias, scale, emb_sizes, bias_size, scale_size, hidden,
-          eps);
+          eps, use_fp16);
       layer = engine_->AddPluginV2(input_ids.data(), input_num, plugin);
     } else {
       PADDLE_THROW(platform::errors::Fatal(

paddle/fluid/inference/tensorrt/plugin/emb_eltwise_layernorm_plugin.cu

@@ -32,13 +32,34 @@ namespace plugin {
 #if IS_TRT_VERSION_GE(6000)
 
 template <typename T>
-int EmbEltwiseLayernormPluginDynamic<T>::initialize() {
+EmbEltwiseLayernormPluginDynamicImpl<
+    T>::~EmbEltwiseLayernormPluginDynamicImpl() {
+  this->terminate();
+}
+
+inline half fp32tofp16(float x) { return static_cast<half>(x); }
+
+template <typename T>
+int EmbEltwiseLayernormPluginDynamicImpl<T>::initialize() {
   embs_gpu_.resize(embs_.size());
   for (int i = 0; i < embs_.size(); i++) {
     if (embs_[i]) {
-      cudaMalloc(&embs_gpu_[i], sizeof(float) * emb_sizes_[i]);
-      cudaMemcpy(embs_gpu_[i], embs_[i], emb_sizes_[i] * sizeof(float),
+      T *host_ptr;
+      auto size = emb_sizes_[i];
+
+      if (std::is_same<T, half>::value) {
+        host_ptr = new T[size];
+        std::transform(embs_[i], (embs_[i] + size), host_ptr, fp32tofp16);
+      } else {
+        host_ptr = reinterpret_cast<T *>(embs_[i]);
+      }
+
+      cudaMalloc(&embs_gpu_[i], sizeof(T) * size);
+      cudaMemcpy(embs_gpu_[i], host_ptr, size * sizeof(T),
                  cudaMemcpyHostToDevice);
+      if (std::is_same<T, half>::value) {
+        delete[] host_ptr;
+      }
     }
   }
 
@@ -53,11 +74,105 @@ int EmbEltwiseLayernormPluginDynamic<T>::initialize() {
                cudaMemcpyHostToDevice);
   }
 
+  int input_num = embs_.size();
+  in_ptr_tensor_.Resize({input_num});
+  emb_ptr_tensor_.Resize({input_num});
+
+  cudaGetDevice(&device_id_);
+  auto emb_ptr_gpu_d =
+      emb_ptr_tensor_.mutable_data<int64_t>(platform::CUDAPlace(device_id_));
+  cudaMemcpy(emb_ptr_gpu_d, embs_gpu_.data(), sizeof(uintptr_t) * input_num,
+             cudaMemcpyHostToDevice);
+
   return 0;
 }
 
 template <typename T>
-nvinfer1::DimsExprs EmbEltwiseLayernormPluginDynamic<T>::getOutputDimensions(
+void EmbEltwiseLayernormPluginDynamicImpl<T>::terminate() {
+  for (int i = 0; i < embs_gpu_.size(); ++i) {
+    if (embs_gpu_[i]) {
+      cudaFree(embs_gpu_[i]);
+      embs_gpu_[i] = nullptr;
+    }
+  }
+
+  if (bias_gpu_) {
+    cudaFree(bias_gpu_);
+    bias_gpu_ = nullptr;
+  }
+
+  if (scale_gpu_) {
+    cudaFree(scale_gpu_);
+    scale_gpu_ = nullptr;
+  }
+}
+
+template <typename T>
+int EmbEltwiseLayernormPluginDynamicImpl<T>::enqueue(
+    const nvinfer1::PluginTensorDesc *input_desc,
+    const nvinfer1::PluginTensorDesc *output_desc, const void *const *inputs,
+    void *const *outputs, void *workspace, cudaStream_t stream) {
+  auto id_dims = input_desc[0].dims;
+  int batch = id_dims.d[0];
+  int seq_len = id_dims.d[1];
+  int input_num = embs_.size();
+
+  auto in_ptr_gpu_d =
+      in_ptr_tensor_.mutable_data<int64_t>(platform::CUDAPlace(device_id_));
+  auto emb_ptr_gpu_d =
+      emb_ptr_tensor_.mutable_data<int64_t>(platform::CUDAPlace(device_id_));
+
+  auto new_input_ptr = reinterpret_cast<uintptr_t>(inputs[0]);
+
+  if (old_input_ptr_ != new_input_ptr) {
+    old_input_ptr_ = new_input_ptr;
+
+    cudaMemcpyAsync(in_ptr_gpu_d, reinterpret_cast<const void *>(inputs),
+                    sizeof(uintptr_t) * input_num, cudaMemcpyHostToDevice,
+                    stream);
+  }
+
+  auto out_type = output_desc[0].type;
+
+  if (std::is_same<T, float>::value) {
+    PADDLE_ENFORCE_EQ(
+        out_type == nvinfer1::DataType::kFLOAT, true,
+        platform::errors::InvalidArgument(
+            "The EmbEltwiseLayernorm Plugin only support fp32 input."));
+  } else if (std::is_same<T, half>::value) {
+    PADDLE_ENFORCE_EQ(
+        out_type == nvinfer1::DataType::kHALF, true,
+        platform::errors::InvalidArgument(
+            "The EmbEltwiseLayernorm Plugin only support fp16 input."));
+  } else {
+    PADDLE_THROW(platform::errors::Fatal(
+        "Unsupport data type, the out type of EmbEltwiseLayernorm should be "
+        "float or half."));
+  }
+
+  auto *output_d = reinterpret_cast<T *>(outputs[0]);
+
+  operators::math::EmbEltwiseLayerNormFunctor<T> emb_eltwise_layernorm_func;
+  emb_eltwise_layernorm_func(batch, seq_len, hidden_size_, in_ptr_gpu_d,
+                             scale_gpu_, bias_gpu_, emb_ptr_gpu_d, output_d,
+                             eps_, input_num, stream);
+  return cudaGetLastError() != cudaSuccess;
+}
+
+template class EmbEltwiseLayernormPluginDynamicImpl<float>;
+#ifdef SUPPORTS_CUDA_FP16
+template class EmbEltwiseLayernormPluginDynamicImpl<half>;
+#endif  // SUPPORTS_CUDA_FP16
+
+int EmbEltwiseLayernormPluginDynamic::initialize() {
+  impl_->initialize();
+
+  return 0;
+}
+
+void EmbEltwiseLayernormPluginDynamic::terminate() { impl_->terminate(); }
+
+nvinfer1::DimsExprs EmbEltwiseLayernormPluginDynamic::getOutputDimensions(
     int output_index, const nvinfer1::DimsExprs *inputs, int nb_inputs,
     nvinfer1::IExprBuilder &expr_builder) {  // NOLINT
   PADDLE_ENFORCE_EQ(output_index, 0,
@@ -76,18 +191,7 @@ nvinfer1::DimsExprs EmbEltwiseLayernormPluginDynamic<T>::getOutputDimensions(
   return ret;
 }
 
-template <typename T>
-void EmbEltwiseLayernormPluginDynamic<T>::terminate() {
-  for (auto ptr : embs_gpu_) {
-    if (ptr) cudaFree(ptr);
-  }
-
-  if (bias_gpu_) cudaFree(bias_gpu_);
-  if (scale_gpu_) cudaFree(scale_gpu_);
-}
-
-template <typename T>
-bool EmbEltwiseLayernormPluginDynamic<T>::supportsFormatCombination(
+bool EmbEltwiseLayernormPluginDynamic::supportsFormatCombination(
     int pos, const nvinfer1::PluginTensorDesc *in_out, int nb_inputs,
     int nb_outputs) {
   PADDLE_ENFORCE_NOT_NULL(
@@ -98,6 +202,11 @@ bool EmbEltwiseLayernormPluginDynamic<T>::supportsFormatCombination(
                         "The EmbEltwiseLayerNorm's output should be one"
                         "but it's (%d) outputs.",
                         nb_outputs));
+  PADDLE_ENFORCE_EQ(nb_outputs, 1,
+                    platform::errors::InvalidArgument(
+                        "The EmbEltwiseLayerNorm's output should be one"
+                        "but it's (%d) outputs.",
+                        nb_outputs));
   PADDLE_ENFORCE_LT(
       pos, nb_inputs + nb_outputs,
       platform::errors::InvalidArgument("The pos(%d) should be less than the "
@@ -122,7 +231,7 @@ bool EmbEltwiseLayernormPluginDynamic<T>::supportsFormatCombination(
   }
 
   if (pos == all_nums - 1) {
-    if (sizeof(T) == sizeof(float)) {
+    if (with_fp16_ == false) {
       return desc.type == nvinfer1::DataType::kFLOAT;
     } else {
       return desc.type == nvinfer1::DataType::kHALF;
@@ -131,84 +240,27 @@ bool EmbEltwiseLayernormPluginDynamic<T>::supportsFormatCombination(
   return false;
 }
 
-template <typename T>
-nvinfer1::DataType EmbEltwiseLayernormPluginDynamic<T>::getOutputDataType(
+nvinfer1::DataType EmbEltwiseLayernormPluginDynamic::getOutputDataType(
     int index, const nvinfer1::DataType *input_types, int nb_inputs) const {
   PADDLE_ENFORCE_EQ(
       index, 0, platform::errors::InvalidArgument(
                     "The EmbEltwiseLayernorm Plugin only has one input, so the "
                     "index value should be 0, but get %d.",
                     index));
+  if (with_fp16_)
+    return nvinfer1::DataType::kHALF;
+  else
     return nvinfer1::DataType::kFLOAT;
 }
 
-template <typename T>
-int EmbEltwiseLayernormPluginDynamic<T>::enqueue(
+int EmbEltwiseLayernormPluginDynamic::enqueue(
     const nvinfer1::PluginTensorDesc *input_desc,
     const nvinfer1::PluginTensorDesc *output_desc, const void *const *inputs,
     void *const *outputs, void *workspace, cudaStream_t stream) {
-  auto id_dims = input_desc[0].dims;
-  int batch = id_dims.d[0];
-  int seq_len = id_dims.d[1];
-  int input_num = embs_.size();
-
-  framework::Tensor in_ptr_tensor, emb_ptr_tensor;
-  int device_id;
-  cudaGetDevice(&device_id);
-
-  in_ptr_tensor.Resize({input_num});
-  emb_ptr_tensor.Resize({input_num});
-  int64_t *in_ptr_gpu_d =
-      in_ptr_tensor.mutable_data<int64_t>(platform::CUDAPlace(device_id));
-  int64_t *emb_ptr_gpu_d =
-      emb_ptr_tensor.mutable_data<int64_t>(platform::CUDAPlace(device_id));
-
-  std::vector<uintptr_t> in_ptr, emb_ptr;
-  for (int i = 0; i < input_num; i++) {
-    in_ptr.push_back(reinterpret_cast<uintptr_t>(inputs[i]));
-    emb_ptr.push_back(reinterpret_cast<uintptr_t>(embs_gpu_[i]));
-  }
-
-  cudaMemcpyAsync(in_ptr_gpu_d, in_ptr.data(), sizeof(int64_t) * input_num,
-                  cudaMemcpyHostToDevice, stream);
-  cudaMemcpyAsync(emb_ptr_gpu_d, emb_ptr.data(), sizeof(int64_t) * input_num,
-                  cudaMemcpyHostToDevice, stream);
-
-  auto out_type = output_desc[0].type;
-
-  const unsigned tpb = 256;
-  const dim3 grid(seq_len, batch, 1);
-  const dim3 block(tpb, 1, 1);
-  if (sizeof(T) == sizeof(float)) {
-    PADDLE_ENFORCE_EQ(
-        out_type == nvinfer1::DataType::kFLOAT, true,
-        platform::errors::InvalidArgument(
-            "The EmbEltwiseLayernorm Plugin only support fp32 input."));
-  } else if (sizeof(T) == sizeof(int16_t)) {
-    PADDLE_ENFORCE_EQ(
-        out_type == nvinfer1::DataType::kHALF, true,
-        platform::errors::InvalidArgument(
-            "The EmbEltwiseLayernorm Plugin only support fp16 input."));
-  } else {
-    PADDLE_THROW(platform::errors::Fatal(
-        "Unsupport data type, the out type of EmbEltwiseLayernorm should be "
-        "float or half."));
-  }
-
-  T *output_d = static_cast<T *>(outputs[0]);
-
-  operators::math::EmbEltwiseLayerNormFunctor<T> emb_eltwise_layernorm_func;
-  emb_eltwise_layernorm_func(batch, seq_len, hidden_size_, in_ptr_gpu_d,
-                             scale_gpu_, bias_gpu_, emb_ptr_gpu_d, output_d,
-                             eps_, input_num, stream);
+  impl_->enqueue(input_desc, output_desc, inputs, outputs, workspace, stream);
   return cudaGetLastError() != cudaSuccess;
 }
 
-template class EmbEltwiseLayernormPluginDynamic<float>;
-#ifdef SUPPORTS_CUDA_FP16
-template class EmbEltwiseLayernormPluginDynamic<half>;
-#endif  // SUPPORTS_CUDA_FP16
-
 #endif
 
 }  // namespace plugin

paddle/fluid/inference/tensorrt/plugin/emb_eltwise_layernorm_plugin.h

@@ -27,10 +27,25 @@ namespace tensorrt {
 namespace plugin {
 
 #if IS_TRT_VERSION_GE(6000)
+
+class EmbEltwiseLayernormPluginDynamicImplBase {
+ public:
+  EmbEltwiseLayernormPluginDynamicImplBase() {}
+  virtual ~EmbEltwiseLayernormPluginDynamicImplBase() {}
+
+  virtual int initialize() = 0;
+  virtual void terminate() = 0;
+  virtual int enqueue(const nvinfer1::PluginTensorDesc* inputDesc,
+                      const nvinfer1::PluginTensorDesc* outputDesc,
+                      const void* const* inputs, void* const* outputs,
+                      void* workspace, cudaStream_t stream) = 0;
+};
+
 template <typename T>
-class EmbEltwiseLayernormPluginDynamic : public DynamicPluginTensorRT {
+class EmbEltwiseLayernormPluginDynamicImpl
+    : public EmbEltwiseLayernormPluginDynamicImplBase {
  public:
-  explicit EmbEltwiseLayernormPluginDynamic(std::vector<float*> input_embs,
+  explicit EmbEltwiseLayernormPluginDynamicImpl(std::vector<float*> input_embs,
                                                 float* bias, float* scale,
                                                 std::vector<int> emb_sizes,
                                                 int bias_size, int scale_size,
@@ -44,49 +59,126 @@ class EmbEltwiseLayernormPluginDynamic : public DynamicPluginTensorRT {
         hidden_size_(hidden_size),
         eps_(eps) {}
 
+  ~EmbEltwiseLayernormPluginDynamicImpl();
+
+  int initialize();
+  void terminate();
+  int enqueue(const nvinfer1::PluginTensorDesc* inputDesc,
+              const nvinfer1::PluginTensorDesc* outputDesc,
+              const void* const* inputs, void* const* outputs, void* workspace,
+              cudaStream_t stream);
+
+ private:
+  std::vector<float*> embs_;
+  float* bias_{nullptr};
+  float* scale_{nullptr};
+
+  // data on devices
+  float* bias_gpu_{nullptr};
+  float* scale_gpu_{nullptr};
+  std::vector<T*> embs_gpu_;
+
+  std::vector<int> emb_sizes_;
+  int bias_size_;
+  int scale_size_;
+  int hidden_size_;
+  float eps_;
+
+  framework::Tensor in_ptr_tensor_, emb_ptr_tensor_;
+  int device_id_{0};
+  uintptr_t old_input_ptr_{0};
+};
+
+class EmbEltwiseLayernormPluginDynamic : public DynamicPluginTensorRT {
+ public:
+  explicit EmbEltwiseLayernormPluginDynamic(std::vector<float*> input_embs,
+                                            float* bias, float* scale,
+                                            std::vector<int> emb_sizes,
+                                            int bias_size, int scale_size,
+                                            int hidden_size, float eps,
+                                            bool with_fp16)
+      : embs_(input_embs),
+        bias_(bias),
+        scale_(scale),
+        emb_sizes_(emb_sizes),
+        bias_size_(bias_size),
+        scale_size_(scale_size),
+        hidden_size_(hidden_size),
+        eps_(eps),
+        with_fp16_(with_fp16),
+        own_host_buff_(false) {
+    if (with_fp16) {
+#ifdef SUPPORTS_CUDA_FP16
+      impl_ = new EmbEltwiseLayernormPluginDynamicImpl<half>(
+          embs_, bias_, scale_, emb_sizes_, bias_size_, scale_size_,
+          hidden_size_, eps_);
+#else
+      PADDLE_THROW(platform::errors::Fatal(
+          "Unsupported data type, current GPU doesn't support half."));
+#endif  // SUPPORTS_CUDA_FP16
+    } else {
+      impl_ = new EmbEltwiseLayernormPluginDynamicImpl<float>(
+          embs_, bias_, scale_, emb_sizes_, bias_size_, scale_size_,
+          hidden_size_, eps_);
+    }
+  }
+
   EmbEltwiseLayernormPluginDynamic(void const* serial_data,
-                                   size_t serial_length) {
+                                   size_t serial_length)
+      : own_host_buff_(true) {
     DeserializeValue(&serial_data, &serial_length, &emb_sizes_);
 
-    embs_gpu_.resize(emb_sizes_.size());
     embs_.resize(emb_sizes_.size());
     for (size_t i = 0; i < emb_sizes_.size(); i++) {
-      cudaMalloc(&embs_gpu_[i], sizeof(float) * emb_sizes_[i]);
-      cudaMemcpy(embs_gpu_[i], serial_data, emb_sizes_[i] * sizeof(float),
-                 cudaMemcpyHostToDevice);
+      auto size = emb_sizes_[i];
+      auto ptr = new float[size];
+      memcpy(ptr, serial_data, sizeof(float) * size);
+      embs_[i] = ptr;
       reinterpret_cast<char const*&>(serial_data) +=
           emb_sizes_[i] * sizeof(float);
       serial_length -= emb_sizes_[i] * sizeof(float);
-      embs_[i] = nullptr;
     }
     DeserializeValue(&serial_data, &serial_length, &bias_size_);
     DeserializeValue(&serial_data, &serial_length, &scale_size_);
 
-    cudaMalloc(&bias_gpu_, sizeof(float) * bias_size_);
-    cudaMemcpy(bias_gpu_, serial_data, bias_size_ * sizeof(float),
-               cudaMemcpyHostToDevice);
-    bias_ = nullptr;
+    if (bias_size_) {
+      bias_ = new float[bias_size_];
+      memcpy(bias_, serial_data, sizeof(float) * bias_size_);
+    }
     reinterpret_cast<char const*&>(serial_data) += bias_size_ * sizeof(float);
     serial_length -= bias_size_ * sizeof(float);
 
-    cudaMalloc(&scale_gpu_, sizeof(float) * scale_size_);
-    cudaMemcpy(scale_gpu_, serial_data, scale_size_ * sizeof(float),
-               cudaMemcpyHostToDevice);
-    scale_ = nullptr;
+    if (scale_size_) {
+      scale_ = new float[scale_size_];
+      memcpy(scale_, serial_data, sizeof(float) * scale_size_);
+    }
     reinterpret_cast<char const*&>(serial_data) += scale_size_ * sizeof(float);
     serial_length -= scale_size_ * sizeof(float);
 
     DeserializeValue(&serial_data, &serial_length, &hidden_size_);
     DeserializeValue(&serial_data, &serial_length, &eps_);
+    DeserializeValue(&serial_data, &serial_length, &with_fp16_);
+
+    if (with_fp16_) {
+#ifdef SUPPORTS_CUDA_FP16
+      impl_ = new EmbEltwiseLayernormPluginDynamicImpl<half>(
+          embs_, bias_, scale_, emb_sizes_, bias_size_, scale_size_,
+          hidden_size_, eps_);
+#else
+      PADDLE_THROW(platform::errors::Fatal(
+          "Unsupported data type, current GPU doesn't support half."));
+#endif  // SUPPORTS_CUDA_FP16
+    } else {
+      impl_ = new EmbEltwiseLayernormPluginDynamicImpl<float>(
+          embs_, bias_, scale_, emb_sizes_, bias_size_, scale_size_,
+          hidden_size_, eps_);
+    }
   }
 
   nvinfer1::IPluginV2DynamicExt* clone() const override {
     auto ptr = new EmbEltwiseLayernormPluginDynamic(
         embs_, bias_, scale_, emb_sizes_, bias_size_, scale_size_, hidden_size_,
-        eps_);
-    ptr->embs_gpu_ = embs_gpu_;
-    ptr->bias_gpu_ = bias_gpu_;
-    ptr->scale_gpu_ = scale_gpu_;
+        eps_, with_fp16_);
     return ptr;
   }
 
@@ -95,6 +187,7 @@ class EmbEltwiseLayernormPluginDynamic : public DynamicPluginTensorRT {
   }
   int getNbOutputs() const override { return 1; }
   int initialize() override;
+  void terminate() override;
 
   size_t getSerializationSize() const override {
     int sum_num = 0;
@@ -110,24 +203,32 @@ class EmbEltwiseLayernormPluginDynamic : public DynamicPluginTensorRT {
     sum_num += (bias_size_ + scale_size_) * sizeof(float);
     sum_num += SerializedSize(hidden_size_);
     sum_num += SerializedSize(eps_);
-    // sum_num += SerializedSize(with_fp16_);
+    sum_num += SerializedSize(with_fp16_);
 
     return sum_num;
   }
 
-  void terminate() override;
   void serialize(void* buffer) const override {
-    // SerializeValue(&buffer, with_fp16_);
     SerializeValue(&buffer, emb_sizes_);
     for (size_t i = 0; i < emb_sizes_.size(); i++) {
-      SerializeCudaPointer(&buffer, embs_gpu_[i], emb_sizes_[i]);
+      auto size = emb_sizes_[i];
+      for (int j = 0; j < size; ++j) {
+        SerializeValue(&buffer, embs_[i][j]);
+      }
     }
     SerializeValue(&buffer, bias_size_);
     SerializeValue(&buffer, scale_size_);
-    SerializeCudaPointer(&buffer, bias_gpu_, bias_size_);
-    SerializeCudaPointer(&buffer, scale_gpu_, scale_size_);
+    for (int i = 0; i < bias_size_; ++i) {
+      SerializeValue(&buffer, bias_[i]);
+    }
+
+    for (int i = 0; i < scale_size_; ++i) {
+      SerializeValue(&buffer, scale_[i]);
+    }
+
     SerializeValue(&buffer, hidden_size_);
     SerializeValue(&buffer, eps_);
+    SerializeValue(&buffer, with_fp16_);
   }
 
   nvinfer1::DimsExprs getOutputDimensions(
@@ -158,23 +259,33 @@ class EmbEltwiseLayernormPluginDynamic : public DynamicPluginTensorRT {
                                        const nvinfer1::DataType* input_types,
                                        int nb_inputs) const override;
 
-  void destroy() override { delete this; }
+  void destroy() override {
+    if (own_host_buff_) {
+      for (auto ptr : embs_) {
+        delete[] ptr;
+      }
+      delete[] bias_;
+      delete[] scale_;
+    }
+
+    delete impl_;
+    delete this;
+  }
 
  private:
   std::vector<float*> embs_;
   float* bias_;
   float* scale_;
 
-  // data on devices
-  float* bias_gpu_;
-  float* scale_gpu_;
-  std::vector<float*> embs_gpu_;
-
   std::vector<int> emb_sizes_;
   int bias_size_;
   int scale_size_;
   int hidden_size_;
   float eps_;
+
+  bool with_fp16_;
+  bool own_host_buff_{false};
+  EmbEltwiseLayernormPluginDynamicImplBase* impl_{nullptr};
 };
 
 class EmbEltwiseLayernormPluginV2Creator : public nvinfer1::IPluginCreator {
@@ -198,8 +309,7 @@ class EmbEltwiseLayernormPluginV2Creator : public nvinfer1::IPluginCreator {
   nvinfer1::IPluginV2* deserializePlugin(const char* name,
                                          const void* serial_data,
                                          size_t serial_length) override {
-    return new EmbEltwiseLayernormPluginDynamic<float>(serial_data,
-                                                       serial_length);
+    return new EmbEltwiseLayernormPluginDynamic(serial_data, serial_length);
   }
 
   void setPluginNamespace(const char* lib_namespace) override {

paddle/fluid/inference/tests/api/trt_dynamic_shape_ernie_deserialize_test.cc

@@ -151,7 +151,7 @@ void trt_ernie(bool with_fp16, std::vector<float> result) {
   run(config, &out_data);         // serialize
   run(*config_deser, &out_data);  // deserialize
   for (size_t i = 0; i < out_data.size(); i++) {
-    EXPECT_NEAR(result[i], out_data[i], 1e-6);
+    EXPECT_NEAR(result[i], out_data[i], 1e-2);
   }
 }
 
@@ -159,13 +159,11 @@ TEST(AnalysisPredictor, no_fp16) {
   std::vector<float> result = {0.597841, 0.219972, 0.182187};
   trt_ernie(false, result);
 }
-
-TEST(AnalysisPredictor, fp16) {
 #ifdef SUPPORTS_CUDA_FP16
-  std::vector<float> result = {0.598336, 0.219558, 0.182106};
+TEST(AnalysisPredictor, fp16) {
+  std::vector<float> result = {0.59923654, 0.21923761, 0.18152587};
   trt_ernie(true, result);
-#endif
 }
-
+#endif  // SUPPORTS_CUDA_FP16
 }  // namespace inference
 }  // namespace paddle