move c_identity to phi (PaddlePaddle#56215)

paddle/fluid/operators/collective/c_identity_op.cc

@@ -12,7 +12,10 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License. */
 
-#include "paddle/fluid/operators/collective/c_identity_op.h"
+#include "paddle/fluid/framework/infershape_utils.h"
+#include "paddle/fluid/framework/op_registry.h"
+
+#include "paddle/phi/infermeta/unary.h"
 
 namespace paddle {
 namespace operators {
@@ -79,20 +82,14 @@ class CIdentityOpGradMaker : public framework::SingleGradOpMaker<T> {
 }  // namespace paddle
 
 namespace ops = paddle::operators;
-namespace plat = paddle::platform;
+
+DECLARE_INFER_SHAPE_FUNCTOR(c_identity,
+                            CIdentityShapeFunctor,
+                            PD_INFER_META(phi::CIdentityInferMeta));
 
 REGISTER_OPERATOR(c_identity,
                   ops::CIdentityOp,
                   ops::CIdentityOpGradMaker<paddle::framework::OpDesc>,
                   ops::CIdentityOpGradMaker<paddle::imperative::OpBase>,
-                  ops::CIdentityOpMaker);
-
-PD_REGISTER_STRUCT_KERNEL(c_identity,
-                          CPU,
-                          ALL_LAYOUT,
-                          ops::CIdentityOpCPUKernel,
-                          float,
-                          double,
-                          int,
-                          int64_t,
-                          plat::float16) {}
+                  ops::CIdentityOpMaker,
+                  CIdentityShapeFunctor);

paddle/fluid/operators/custom_device_common_op_registry.cc

@@ -15,7 +15,6 @@ limitations under the License. */
 #include "paddle/fluid/operators/custom_device_common_op_registry.h"
 #include "paddle/fluid/distributed/collective/process_group.h"
 #include "paddle/fluid/operators/collective/c_concat_op.h"
-#include "paddle/fluid/operators/collective/c_identity_op.h"
 #include "paddle/fluid/operators/load_combine_op.h"
 #include "paddle/fluid/operators/run_program_op.h"
 #include "paddle/fluid/operators/save_combine_op.h"
@@ -147,6 +146,25 @@ class CConcatOpCustomDeviceKernel : public framework::OpKernel<T> {
   }
 };
 
+template <typename DeviceContext, typename T>
+class CIdentityOpCustomDeviceKernel : public framework::OpKernel<T> {
+ public:
+  void Compute(const framework::ExecutionContext& ctx) const override {
+    auto x = ctx.Input<phi::DenseTensor>("X");
+    auto out = ctx.Output<phi::DenseTensor>("Out");
+
+    int rid = ctx.Attr<int>("ring_id");
+    PADDLE_ENFORCE_GE(
+        rid,
+        0,
+        platform::errors::InvalidArgument(
+            "The ring_id (%d) for c_identity op must be non-negative.", rid));
+    ctx.device_context().Alloc<T>(out);
+
+    paddle::framework::TensorCopy(*x, out->place(), out);
+  }
+};
+
 template <typename DeviceContext, typename T>
 class CSplitOpCustomDeviceKernel : public framework::OpKernel<T> {
  public:
@@ -1363,17 +1381,22 @@ void RegisterCustomDeviceCommonKernel(const std::string& dev_type) {
   REGISTER_OP_CUSTOM_DEVICE_KERNEL(
       c_identity,
       device_type,
-      paddle::operators::
-          CIdentityOpKernel<float, paddle::platform::CustomDeviceContext>,
-      paddle::operators::
-          CIdentityOpKernel<double, paddle::platform::CustomDeviceContext>,
-      paddle::operators::
-          CIdentityOpKernel<int, paddle::platform::CustomDeviceContext>,
-      paddle::operators::
-          CIdentityOpKernel<int64_t, paddle::platform::CustomDeviceContext>,
-      paddle::operators::CIdentityOpKernel<
-          paddle::platform::float16,
-          paddle::platform::CustomDeviceContext>) {}
+      paddle::operators::CIdentityOpCustomDeviceKernel<
+          paddle::platform::CustomDeviceContext,
+          float>,
+      paddle::operators::CIdentityOpCustomDeviceKernel<
+          paddle::platform::CustomDeviceContext,
+          double>,
+      paddle::operators::CIdentityOpCustomDeviceKernel<
+          paddle::platform::CustomDeviceContext,
+          int>,
+      paddle::operators::CIdentityOpCustomDeviceKernel<
+          paddle::platform::CustomDeviceContext,
+          int64_t>,
+      paddle::operators::CIdentityOpCustomDeviceKernel<
+          paddle::platform::CustomDeviceContext,
+          paddle::platform::float16>) {}
+
   REGISTER_OP_CUSTOM_DEVICE_KERNEL(
       c_sync_calc_stream,
       device_type,

paddle/phi/infermeta/unary.cc

@@ -461,6 +461,20 @@ void ClipByNormInferMeta(const MetaTensor& x, float max_norm, MetaTensor* out) {
   out->share_lod(x);
 }
 
+void CIdentityInferMeta(const MetaTensor& x,
+                        int ring_id,
+                        bool use_calc_stream,
+                        bool use_model_parallel,
+                        MetaTensor* out) {
+  PADDLE_ENFORCE_GE(
+      ring_id,
+      0,
+      errors::InvalidArgument(
+          "The ring_id (%d) for c_identity must be non-negative.", ring_id));
+  out->set_dims(x.dims());
+  out->set_dtype(x.dtype());
+}
+
 void CreateLikeInferMeta(const MetaTensor& x, DataType dtype, MetaTensor* out) {
   out->set_dims(x.dims());
   out->set_dtype(dtype == DataType::UNDEFINED ? x.dtype() : dtype);

paddle/phi/infermeta/unary.h

@@ -102,6 +102,12 @@ void ClassCenterSampleInferMeta(const MetaTensor& label,
 
 void ClipByNormInferMeta(const MetaTensor& x, float max_norm, MetaTensor* out);
 
+void CIdentityInferMeta(const MetaTensor& x,
+                        int ring_id,
+                        bool use_calc_stream,
+                        bool use_model_parallel,
+                        MetaTensor* out);
+
 void CreateLikeInferMeta(const MetaTensor& x, DataType dtype, MetaTensor* out);
 
 void CropInferMeta(const MetaTensor& x,

paddle/fluid/operators/collective/c_identity_op_xpu.cc → paddle/phi/kernels/c_identity_kernel.h

@@ -1,25 +1,28 @@
-/* Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+/* Copyright (c) 2023 PaddlePaddle Authors. All Rights Reserved.
+
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at
+
     http://www.apache.org/licenses/LICENSE-2.0
+
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License. */
 
-#include "paddle/fluid/operators/collective/c_identity_op.h"
+#pragma once
+
+#include "paddle/phi/core/dense_tensor.h"
 
-namespace ops = paddle::operators;
-namespace plat = paddle::platform;
+namespace phi {
 
-PD_REGISTER_STRUCT_KERNEL(c_identity,
-                          XPU,
-                          ALL_LAYOUT,
-                          ops::CIdentityOpKernel,
-                          float,
-                          double,
-                          int,
-                          int64_t,
-                          plat::float16) {}
+template <typename T, typename Context>
+void CIdentityKernel(const Context& dev_ctx,
+                     const DenseTensor& x,
+                     int ring_id,
+                     bool use_calc_stream,
+                     bool use_model_parallel,
+                     DenseTensor* out);
+}  // namespace phi

paddle/phi/kernels/cpu/c_identity_kernel.cc

@@ -0,0 +1,43 @@
+/* Copyright (c) 2023 PaddlePaddle Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License. */
+
+#include "paddle/phi/kernels/c_identity_kernel.h"
+
+#include "paddle/phi/backends/cpu/cpu_context.h"
+#include "paddle/phi/core/kernel_registry.h"
+
+namespace phi {
+
+template <typename T, typename Context>
+void CIdentityKernel(const Context& dev_ctx,
+                     const DenseTensor& x,
+                     int ring_id,
+                     bool use_calc_stream,
+                     bool use_model_parallel,
+                     DenseTensor* out) {
+  PADDLE_THROW(
+      errors::Unavailable("Do not support c_identity for cpu kernel now."));
+}
+
+}  // namespace phi
+
+PD_REGISTER_KERNEL(c_identity,
+                   CPU,
+                   ALL_LAYOUT,
+                   phi::CIdentityKernel,
+                   float,
+                   double,
+                   int,
+                   int64_t,
+                   phi::dtype::float16) {}

paddle/phi/kernels/gpu/c_identity_kernel.cu

@@ -0,0 +1,30 @@
+/* Copyright (c) 2023 PaddlePaddle Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License. */
+
+#include "paddle/phi/kernels/c_identity_kernel.h"
+#include "paddle/phi/kernels/impl/c_identity_kernel_impl.h"
+
+#include "paddle/phi/backends/gpu/gpu_context.h"
+#include "paddle/phi/core/kernel_registry.h"
+
+PD_REGISTER_KERNEL(c_identity,
+                   GPU,
+                   ALL_LAYOUT,
+                   phi::CIdentityKernel,
+                   float,
+                   double,
+                   int,
+                   int64_t,
+                   phi::dtype::bfloat16,
+                   phi::dtype::float16) {}

paddle/phi/kernels/impl/c_identity_kernel_impl.h

@@ -0,0 +1,41 @@
+// Copyright (c) 2023 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#include "paddle/phi/kernels/c_identity_kernel.h"
+
+#include "paddle/phi/core/kernel_registry.h"
+
+namespace phi {
+
+template <typename T, typename Context>
+void CIdentityKernel(const Context& dev_ctx,
+                     const DenseTensor& x,
+                     int ring_id,
+                     bool use_calc_stream,
+                     bool use_model_parallel,
+                     DenseTensor* out) {
+  PADDLE_ENFORCE_GE(
+      ring_id,
+      0,
+      errors::InvalidArgument(
+          "The ring_id (%d) for c_identity op must be non-negative.", ring_id));
+
+  dev_ctx.template Alloc<T>(out);
+
+  phi::Copy(dev_ctx, x, dev_ctx.GetPlace(), false, out);
+}
+
+}  // namespace phi