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@ -27,11 +27,9 @@ void FCOp::InferShape(framework::InferShapeContext* ctx) const {
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"Out(Output) of Fully Connected should not be null.");
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PADDLE_ENFORCE(ctx->HasInput("W"),
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"W(Input) of Fully Connected should not be null.");
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// NCHW
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auto in_dims = ctx->GetInputDim("Input");
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// IO, I=C*H*W
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auto w_dims = ctx->GetInputDim("W");
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std::vector<int64_t> output_shape({in_dims[0], w_dims[1]});
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if (ctx->HasInput("Bias")) {
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auto bias_dims = ctx->GetInputDim("Bias");
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@ -44,14 +42,32 @@ void FCOp::InferShape(framework::InferShapeContext* ctx) const {
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"The shape of Bias must be [1, dim].");
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}
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}
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PADDLE_ENFORCE(in_dims.size() == 2 || in_dims.size() == 4,
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"Fully Connected input should be 2-D or 4-D tensor.");
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if (ctx->Attrs().Get<bool>("use_mkldnn")) {
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PADDLE_ENFORCE(in_dims.size() == 2 || in_dims.size() == 4,
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"Fully Connected input should be 2-D or 4-D tensor.");
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}
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PADDLE_ENFORCE_EQ(w_dims.size(), 2UL,
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"Fully Connected input should be 2-D tensor.");
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PADDLE_ENFORCE_EQ(framework::product(in_dims) / in_dims[0], w_dims[0],
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"Fully Connected input and weigth size do not match.");
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int in_num_col_dims = ctx->Attrs().Get<int>("in_num_col_dims");
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PADDLE_ENFORCE_GT(
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in_dims.size(), in_num_col_dims,
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"The input tensor Input's rank of FCOp should be larger than "
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"in_num_col_dims.");
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auto in_mat_dims = framework::flatten_to_2d(in_dims, in_num_col_dims);
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PADDLE_ENFORCE_EQ(
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in_mat_dims[1], w_dims[0],
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"Fully Connected input and weigth size do not match. %s, %s");
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std::vector<int64_t> output_dims;
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output_dims.reserve(static_cast<size_t>(in_num_col_dims + 1));
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for (int i = 0; i < in_num_col_dims; ++i) {
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output_dims.push_back(in_dims[i]);
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}
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output_dims.push_back(w_dims[1]);
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ctx->SetOutputDim("Out", framework::make_ddim(output_shape));
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ctx->SetOutputDim("Out", framework::make_ddim(output_dims));
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ctx->ShareLoD("Input", "Out");
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}
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@ -101,12 +117,15 @@ framework::OpKernelType FCOpGrad::GetExpectedKernelType(
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}
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void FCOpMaker::Make() {
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AddInput("Input",
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"(Tensor), The input tensor of fully connected operator with format "
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"(NCHW). ");
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AddInput("Input", "(Tensor), The input tensor of fully connected operator.");
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AddInput("W", "(Tensor), The weight fc op with shape (I, O).");
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AddInput("Bias", "(Tensor, optional) Bias vector with shape (1 x O")
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.AsDispensable();
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AddAttr<int>("in_num_col_dims",
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"(int, default 1), The fc op can take tensors with more than "
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"two dimensions as its inputs.")
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.SetDefault(1)
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.EqualGreaterThan(1);
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AddOutput("Out", "(Tensor) The output tensor of fully connected operator. ");
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AddAttr<bool>("use_mkldnn",
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"(bool, default false) Only used in mkldnn kernel")
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@ -131,13 +150,15 @@ class FCOpKernel : public framework::OpKernel<T> {
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auto output = ctx.Output<Tensor>("Out");
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auto in_dims = input->dims();
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auto w_dims = w->dims();
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auto out_dims = output->dims();
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int M = framework::product(out_dims) / out_dims[out_dims.size() - 1];
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const T* input_data = input->data<T>();
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const T* w_data = w->data<T>();
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T* output_data = output->mutable_data<T>(ctx.GetPlace());
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auto blas = math::GetBlas<platform::CPUDeviceContext, T>(ctx);
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math::FCCompute<platform::CPUDeviceContext, T>(
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blas, in_dims[0], w_dims[1], w_dims[0], input_data, w_data, output_data,
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blas, M, w_dims[1], w_dims[0], input_data, w_data, output_data,
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bias ? bias->data<T>() : NULL);
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// TODO(TJ): fuse act
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