From affce7331ce42cb85295f932e408f0d4597ea527 Mon Sep 17 00:00:00 2001
From: chengduoZH <zhaochengduo@163.com>
Date: Fri, 2 Feb 2018 17:31:35 +0800
Subject: [PATCH] refine elementwise_op

---
 paddle/operators/compare_op.h              | 10 +++++++-
 paddle/operators/elementwise_add_op.h      | 21 ++++++++++++++--
 paddle/operators/elementwise_div_op.h      | 21 ++++++++++++++--
 paddle/operators/elementwise_max_op.h      | 21 ++++++++++++++--
 paddle/operators/elementwise_min_op.h      | 21 ++++++++++++++--
 paddle/operators/elementwise_mul_op.h      | 21 ++++++++++++++--
 paddle/operators/elementwise_op_function.h | 28 ++++++++--------------
 paddle/operators/elementwise_pow_op.h      |  9 ++++++-
 paddle/operators/elementwise_sub_op.h      | 21 ++++++++++++++--
 9 files changed, 141 insertions(+), 32 deletions(-)

diff --git a/paddle/operators/compare_op.h b/paddle/operators/compare_op.h
index 9c655d6c0d8e5..b275fd75b3512 100644
--- a/paddle/operators/compare_op.h
+++ b/paddle/operators/compare_op.h
@@ -54,7 +54,15 @@ class CompareOpKernel
  public:
   void Compute(const framework::ExecutionContext& context) const override {
     using T = typename Functor::ELEM_TYPE;
-    ElementwiseComputeEx<Functor, DeviceContext, T, bool>(context);
+    using Tensor = framework::Tensor;
+
+    auto* x = context.Input<Tensor>("X");
+    auto* y = context.Input<Tensor>("Y");
+    auto* z = context.Output<Tensor>("Out");
+    z->mutable_data<T>(context.GetPlace());
+    int axis = context.Attr<int>("axis");
+    ElementwiseComputeEx<Functor, DeviceContext, T, bool>(context, x, y, axis,
+                                                          z);
   }
 };
 
diff --git a/paddle/operators/elementwise_add_op.h b/paddle/operators/elementwise_add_op.h
index a8389429f26c1..c32288d6984f1 100644
--- a/paddle/operators/elementwise_add_op.h
+++ b/paddle/operators/elementwise_add_op.h
@@ -28,7 +28,14 @@ template <typename DeviceContext, typename T>
 class ElementwiseAddKernel : public framework::OpKernel<T> {
  public:
   void Compute(const framework::ExecutionContext& ctx) const override {
-    ElementwiseComputeEx<AddFunctor<T>, DeviceContext, T>(ctx);
+    using Tensor = framework::Tensor;
+
+    auto* x = ctx.Input<Tensor>("X");
+    auto* y = ctx.Input<Tensor>("Y");
+    auto* z = ctx.Output<Tensor>("Out");
+    z->mutable_data<T>(ctx.GetPlace());
+    int axis = ctx.Attr<int>("axis");
+    ElementwiseComputeEx<AddFunctor<T>, DeviceContext, T>(ctx, x, y, axis, z);
   }
 };
 
@@ -92,9 +99,19 @@ template <typename DeviceContext, typename T>
 class ElementwiseAddGradKernel : public framework::OpKernel<T> {
  public:
   void Compute(const framework::ExecutionContext& ctx) const override {
+    using Tensor = framework::Tensor;
+
+    auto* x = ctx.Input<Tensor>("X");
+    auto* y = ctx.Input<Tensor>("Y");
+    auto* out = ctx.Input<Tensor>("Out");
+    auto* dout = ctx.Input<Tensor>(framework::GradVarName("Out"));
+    auto* dx = ctx.Output<Tensor>(framework::GradVarName("X"));
+    auto* dy = ctx.Output<Tensor>(framework::GradVarName("Y"));
+    int axis = ctx.Attr<int>("axis");
     ElementwiseGradCompute<DeviceContext, T, ElementwiseAddGradFunctor<T>,
                            ElementwiseAddBroadCastGradFunctor<T>,
-                           ElementwiseAddBroadCast2GradFunctor<T>>(ctx);
+                           ElementwiseAddBroadCast2GradFunctor<T>>(
+        ctx, x, y, out, dout, axis, dx, dy);
   }
 };
 
diff --git a/paddle/operators/elementwise_div_op.h b/paddle/operators/elementwise_div_op.h
index ef26cb6c914f5..07ebade31ff5b 100644
--- a/paddle/operators/elementwise_div_op.h
+++ b/paddle/operators/elementwise_div_op.h
@@ -28,7 +28,14 @@ template <typename DeviceContext, typename T>
 class ElementwiseDivKernel : public framework::OpKernel<T> {
  public:
   void Compute(const framework::ExecutionContext& ctx) const override {
-    ElementwiseComputeEx<DivFunctor<T>, DeviceContext, T>(ctx);
+    using Tensor = framework::Tensor;
+
+    auto* x = ctx.Input<Tensor>("X");
+    auto* y = ctx.Input<Tensor>("Y");
+    auto* z = ctx.Output<Tensor>("Out");
+    z->mutable_data<T>(ctx.GetPlace());
+    int axis = ctx.Attr<int>("axis");
+    ElementwiseComputeEx<DivFunctor<T>, DeviceContext, T>(ctx, x, y, axis, z);
   }
 };
 
@@ -111,9 +118,19 @@ template <typename DeviceContext, typename T>
 class ElementwiseDivGradKernel : public framework::OpKernel<T> {
  public:
   void Compute(const framework::ExecutionContext& ctx) const override {
+    using Tensor = framework::Tensor;
+
+    auto* x = ctx.Input<Tensor>("X");
+    auto* y = ctx.Input<Tensor>("Y");
+    auto* out = ctx.Input<Tensor>("Out");
+    auto* dout = ctx.Input<Tensor>(framework::GradVarName("Out"));
+    auto* dx = ctx.Output<Tensor>(framework::GradVarName("X"));
+    auto* dy = ctx.Output<Tensor>(framework::GradVarName("Y"));
+    int axis = ctx.Attr<int>("axis");
     ElementwiseGradCompute<DeviceContext, T, ElementwiseDivGradFunctor<T>,
                            ElementwiseDivBroadCastGradFunctor<T>,
-                           ElementwiseDivBroadCast2GradFunctor<T>>(ctx);
+                           ElementwiseDivBroadCast2GradFunctor<T>>(
+        ctx, x, y, out, dout, axis, dx, dy);
   }
 };
 
diff --git a/paddle/operators/elementwise_max_op.h b/paddle/operators/elementwise_max_op.h
index 255728e8e6206..717e45ab31db9 100644
--- a/paddle/operators/elementwise_max_op.h
+++ b/paddle/operators/elementwise_max_op.h
@@ -28,7 +28,14 @@ template <typename DeviceContext, typename T>
 class ElementwiseMaxKernel : public framework::OpKernel<T> {
  public:
   void Compute(const framework::ExecutionContext& ctx) const override {
-    ElementwiseComputeEx<MaxFunctor<T>, DeviceContext, T>(ctx);
+    using Tensor = framework::Tensor;
+
+    auto* x = ctx.Input<Tensor>("X");
+    auto* y = ctx.Input<Tensor>("Y");
+    auto* z = ctx.Output<Tensor>("Out");
+    z->mutable_data<T>(ctx.GetPlace());
+    int axis = ctx.Attr<int>("axis");
+    ElementwiseComputeEx<MaxFunctor<T>, DeviceContext, T>(ctx, x, y, axis, z);
   }
 };
 
@@ -110,9 +117,19 @@ template <typename DeviceContext, typename T>
 class ElementwiseMaxGradKernel : public framework::OpKernel<T> {
  public:
   void Compute(const framework::ExecutionContext& ctx) const override {
+    using Tensor = framework::Tensor;
+
+    auto* x = ctx.Input<Tensor>("X");
+    auto* y = ctx.Input<Tensor>("Y");
+    auto* out = ctx.Input<Tensor>("Out");
+    auto* dout = ctx.Input<Tensor>(framework::GradVarName("Out"));
+    auto* dx = ctx.Output<Tensor>(framework::GradVarName("X"));
+    auto* dy = ctx.Output<Tensor>(framework::GradVarName("Y"));
+    int axis = ctx.Attr<int>("axis");
     ElementwiseGradCompute<DeviceContext, T, ElementwiseMaxGradFunctor<T>,
                            ElementwiseMaxBroadCastGradFunctor<T>,
-                           ElementwiseMaxBroadCast2GradFunctor<T>>(ctx);
+                           ElementwiseMaxBroadCast2GradFunctor<T>>(
+        ctx, x, y, out, dout, axis, dx, dy);
   }
 };
 
diff --git a/paddle/operators/elementwise_min_op.h b/paddle/operators/elementwise_min_op.h
index e6627a0f1bb46..0de9a91c52b0a 100644
--- a/paddle/operators/elementwise_min_op.h
+++ b/paddle/operators/elementwise_min_op.h
@@ -28,7 +28,14 @@ template <typename DeviceContext, typename T>
 class ElementwiseMinKernel : public framework::OpKernel<T> {
  public:
   void Compute(const framework::ExecutionContext& ctx) const override {
-    ElementwiseComputeEx<MinFunctor<T>, DeviceContext, T>(ctx);
+    using Tensor = framework::Tensor;
+
+    auto* x = ctx.Input<Tensor>("X");
+    auto* y = ctx.Input<Tensor>("Y");
+    auto* z = ctx.Output<Tensor>("Out");
+    z->mutable_data<T>(ctx.GetPlace());
+    int axis = ctx.Attr<int>("axis");
+    ElementwiseComputeEx<MinFunctor<T>, DeviceContext, T>(ctx, x, y, axis, z);
   }
 };
 
@@ -110,9 +117,19 @@ template <typename DeviceContext, typename T>
 class ElementwiseMinGradKernel : public framework::OpKernel<T> {
  public:
   void Compute(const framework::ExecutionContext& ctx) const override {
+    using Tensor = framework::Tensor;
+
+    auto* x = ctx.Input<Tensor>("X");
+    auto* y = ctx.Input<Tensor>("Y");
+    auto* out = ctx.Input<Tensor>("Out");
+    auto* dout = ctx.Input<Tensor>(framework::GradVarName("Out"));
+    auto* dx = ctx.Output<Tensor>(framework::GradVarName("X"));
+    auto* dy = ctx.Output<Tensor>(framework::GradVarName("Y"));
+    int axis = ctx.Attr<int>("axis");
     ElementwiseGradCompute<DeviceContext, T, ElementwiseMinGradFunctor<T>,
                            ElementwiseMinBroadCastGradFunctor<T>,
-                           ElementwiseMinBroadCast2GradFunctor<T>>(ctx);
+                           ElementwiseMinBroadCast2GradFunctor<T>>(
+        ctx, x, y, out, dout, axis, dx, dy);
   }
 };
 
diff --git a/paddle/operators/elementwise_mul_op.h b/paddle/operators/elementwise_mul_op.h
index 4b86b00b5a095..ae7a71e0244df 100644
--- a/paddle/operators/elementwise_mul_op.h
+++ b/paddle/operators/elementwise_mul_op.h
@@ -27,7 +27,14 @@ template <typename DeviceContext, typename T>
 class ElementwiseMulKernel : public framework::OpKernel<T> {
  public:
   void Compute(const framework::ExecutionContext& ctx) const override {
-    ElementwiseComputeEx<MulFunctor<T>, DeviceContext, T>(ctx);
+    using Tensor = framework::Tensor;
+
+    auto* x = ctx.Input<Tensor>("X");
+    auto* y = ctx.Input<Tensor>("Y");
+    auto* z = ctx.Output<Tensor>("Out");
+    z->mutable_data<T>(ctx.GetPlace());
+    int axis = ctx.Attr<int>("axis");
+    ElementwiseComputeEx<MulFunctor<T>, DeviceContext, T>(ctx, x, y, axis, z);
   }
 };
 
@@ -110,9 +117,19 @@ template <typename DeviceContext, typename T>
 class ElementwiseMulGradKernel : public framework::OpKernel<T> {
  public:
   void Compute(const framework::ExecutionContext& ctx) const override {
+    using Tensor = framework::Tensor;
+
+    auto* x = ctx.Input<Tensor>("X");
+    auto* y = ctx.Input<Tensor>("Y");
+    auto* out = ctx.Input<Tensor>("Out");
+    auto* dout = ctx.Input<Tensor>(framework::GradVarName("Out"));
+    auto* dx = ctx.Output<Tensor>(framework::GradVarName("X"));
+    auto* dy = ctx.Output<Tensor>(framework::GradVarName("Y"));
+    int axis = ctx.Attr<int>("axis");
     ElementwiseGradCompute<DeviceContext, T, ElementwiseMulGradFunctor<T>,
                            ElementwiseMulBroadCastGradFunctor<T>,
-                           ElementwiseMulBroadCast2GradFunctor<T>>(ctx);
+                           ElementwiseMulBroadCast2GradFunctor<T>>(
+        ctx, x, y, out, dout, axis, dx, dy);
   }
 };
 
diff --git a/paddle/operators/elementwise_op_function.h b/paddle/operators/elementwise_op_function.h
index d749b8e8757d0..213fe1f5a8188 100644
--- a/paddle/operators/elementwise_op_function.h
+++ b/paddle/operators/elementwise_op_function.h
@@ -313,21 +313,18 @@ EIGEN_FUNCTOR(Div, EIGEN_DIV);
 
 template <typename DeviceContext, typename T, typename functor,
           typename broadcastfunctor, typename broadcast2functor>
-void ElementwiseGradCompute(const framework::ExecutionContext& ctx) {
-  using Tensor = framework::Tensor;
-
-  auto* x = ctx.Input<Tensor>("X");
-  auto* y = ctx.Input<Tensor>("Y");
-  auto* out = ctx.Input<Tensor>("Out");
-  auto* dout = ctx.Input<Tensor>(framework::GradVarName("Out"));
+void ElementwiseGradCompute(const framework::ExecutionContext& ctx,
 
+                            const framework::Tensor* x,
+                            const framework::Tensor* y,
+                            const framework::Tensor* out,
+                            const framework::Tensor* dout, int axis,
+                            framework::Tensor* dx, framework::Tensor* dy) {
   auto& place = *ctx.template device_context<DeviceContext>().eigen_device();
 
   auto x_dims = x->dims();
   auto y_dims = y->dims();
 
-  auto* dx = ctx.Output<Tensor>(framework::GradVarName("X"));
-  auto* dy = ctx.Output<Tensor>(framework::GradVarName("Y"));
   if (dx) {
     dx->mutable_data<T>(ctx.GetPlace());
   }
@@ -348,7 +345,6 @@ void ElementwiseGradCompute(const framework::ExecutionContext& ctx) {
     x_dims = framework::make_ddim(extended_dims);
   }
 
-  int axis = ctx.Attr<int>("axis");
   axis = (axis == -1 ? x_dims.size() - y_dims.size() : axis);
 
   int pre, n, post;
@@ -367,13 +363,10 @@ void ElementwiseGradCompute(const framework::ExecutionContext& ctx) {
 
 template <typename Functor, typename DeviceContext, typename T,
           typename OutType = T>
-void ElementwiseComputeEx(const framework::ExecutionContext& ctx) {
-  using Tensor = framework::Tensor;
-
-  auto* x = ctx.Input<Tensor>("X");
-  auto* y = ctx.Input<Tensor>("Y");
-  auto* z = ctx.Output<Tensor>("Out");
-  z->mutable_data<OutType>(ctx.GetPlace());
+void ElementwiseComputeEx(const framework::ExecutionContext& ctx,
+                          const framework::Tensor* x,
+                          const framework::Tensor* y, int axis,
+                          framework::Tensor* z) {
   TransformFunctor<Functor, T, DeviceContext, OutType> functor(
       x, y, z, ctx.template device_context<DeviceContext>(), Functor());
 
@@ -394,7 +387,6 @@ void ElementwiseComputeEx(const framework::ExecutionContext& ctx) {
     x_dims = framework::make_ddim(extended_dims);
   }
 
-  int axis = ctx.Attr<int>("axis");
   axis = (axis == -1 ? x_dims.size() - y_dims.size() : axis);
   PADDLE_ENFORCE(axis >= 0 && axis < x_dims.size(),
                  "Axis should be in range [0, x_dims)");
diff --git a/paddle/operators/elementwise_pow_op.h b/paddle/operators/elementwise_pow_op.h
index 6019e709e0db0..874fd3f09f2af 100644
--- a/paddle/operators/elementwise_pow_op.h
+++ b/paddle/operators/elementwise_pow_op.h
@@ -29,7 +29,14 @@ template <typename DeviceContext, typename T>
 class ElementwisePowKernel : public framework::OpKernel<T> {
  public:
   void Compute(const framework::ExecutionContext& ctx) const override {
-    ElementwiseComputeEx<PowFunctor<T>, DeviceContext, T>(ctx);
+    using Tensor = framework::Tensor;
+
+    auto* x = ctx.Input<Tensor>("X");
+    auto* y = ctx.Input<Tensor>("Y");
+    auto* z = ctx.Output<Tensor>("Out");
+    z->mutable_data<T>(ctx.GetPlace());
+    int axis = ctx.Attr<int>("axis");
+    ElementwiseComputeEx<PowFunctor<T>, DeviceContext, T>(ctx, x, y, axis, z);
   }
 };
 
diff --git a/paddle/operators/elementwise_sub_op.h b/paddle/operators/elementwise_sub_op.h
index a2aca79302618..c2749a8e6ba68 100644
--- a/paddle/operators/elementwise_sub_op.h
+++ b/paddle/operators/elementwise_sub_op.h
@@ -27,7 +27,14 @@ template <typename DeviceContext, typename T>
 class ElementwiseSubKernel : public framework::OpKernel<T> {
  public:
   void Compute(const framework::ExecutionContext& ctx) const override {
-    ElementwiseComputeEx<SubFunctor<T>, DeviceContext, T>(ctx);
+    using Tensor = framework::Tensor;
+
+    auto* x = ctx.Input<Tensor>("X");
+    auto* y = ctx.Input<Tensor>("Y");
+    auto* z = ctx.Output<Tensor>("Out");
+    z->mutable_data<T>(ctx.GetPlace());
+    int axis = ctx.Attr<int>("axis");
+    ElementwiseComputeEx<SubFunctor<T>, DeviceContext, T>(ctx, x, y, axis, z);
   }
 };
 
@@ -93,9 +100,19 @@ template <typename DeviceContext, typename T>
 class ElementwiseSubGradKernel : public framework::OpKernel<T> {
  public:
   void Compute(const framework::ExecutionContext& ctx) const override {
+    using Tensor = framework::Tensor;
+
+    auto* x = ctx.Input<Tensor>("X");
+    auto* y = ctx.Input<Tensor>("Y");
+    auto* out = ctx.Input<Tensor>("Out");
+    auto* dout = ctx.Input<Tensor>(framework::GradVarName("Out"));
+    auto* dx = ctx.Output<Tensor>(framework::GradVarName("X"));
+    auto* dy = ctx.Output<Tensor>(framework::GradVarName("Y"));
+    int axis = ctx.Attr<int>("axis");
     ElementwiseGradCompute<DeviceContext, T, ElementwiseSubGradFunctor<T>,
                            ElementwiseSubBroadCastGradFunctor<T>,
-                           ElementwiseSubBroadCast2GradFunctor<T>>(ctx);
+                           ElementwiseSubBroadCast2GradFunctor<T>>(
+        ctx, x, y, out, dout, axis, dx, dy);
   }
 };