Enforce: 2 and 4 dims, remove information about out in format

paddle/fluid/operators/fc_mkldnn_op.cc

@@ -125,10 +125,10 @@ class FCMKLDNNOpKernel : public paddle::framework::OpKernel<T> {
     auto input = ctx.Input<Tensor>("Input");
     auto w = ctx.Input<Tensor>("W");
 
-    PADDLE_ENFORCE(input->dims().size() == 4 || input->dims().size() == 2,
+    PADDLE_ENFORCE(input->dims().size() == 2 || input->dims().size() == 4,
                    "Input must be with 2 or 4 dimensions, i.e. NCHW");
-    PADDLE_ENFORCE(w->dims().size() == 2,
-                   "Weights must be with 2 dimensions, i.e. NC");
+    PADDLE_ENFORCE(w->dims().size() == 2 || w->dims().size() == 4,
+                   "Weights must be with 2 or 4 dimensions, i.e. OI or OIHW");
 
     bool with_bias = ctx.Attr<bool>("bias_attr");
     MKLDNNMD<Tensor> md(input, w, with_bias);

paddle/fluid/operators/fc_op.cc

@@ -13,6 +13,7 @@ See the License for the specific language governing permissions and
 limitations under the License. */
 
 #include "paddle/fluid/operators/fc_op.h"
+#include <vector>
 
 namespace paddle {
 namespace operators {
@@ -29,11 +30,11 @@ void FCOp::InferShape(framework::InferShapeContext* ctx) const {
   auto w_dims = ctx->GetInputDim("W");
   std::vector<int64_t> output_shape({in_dims[0], w_dims[1]});
 
-  PADDLE_ENFORCE(in_dims.size() == 4 || in_dims.size() == 2,
+  PADDLE_ENFORCE(in_dims.size() == 2 || in_dims.size() == 4,
                  "Fully Connected input should be 2-D or 4-D tensor.");
 
-  PADDLE_ENFORCE(w_dims.size() == 2,
-                 "Fully Connected input should be 2-D tensor.");
+  PADDLE_ENFORCE(w_dims.size() == 2 || w_dims.size() == 4,
+                 "Fully Connected input should be 2-D or 4-D tensor.");
 
   ctx->SetOutputDim("Out", framework::make_ddim(output_shape));
   ctx->ShareLoD("Input", "Out");
@@ -73,19 +74,9 @@ framework::OpKernelType FCOpGrad::GetExpectedKernelType(
 
 FCOpMaker::FCOpMaker(OpProto* proto, OpAttrChecker* op_checker)
     : OpProtoAndCheckerMaker(proto, op_checker) {
-  AddInput(
-      "Input",
-      "(Tensor) The input tensor of fully connected operator. "
-      "The format of input tensor is NCHW, where N is batch size, C is the "
-      "number of channels, H is the height of the feature, "
-      "and W is the width of the feature.");
+  AddInput("Input", "(Tensor) The input tensor of fully connected operator. ");
   AddInput("W", "(Tensor), The second input tensor of fc op.");
-  AddOutput("Out",
-            "(Tensor) The output tensor of fully connected operator. "
-            "The format of output tensor is also NCHW, "
-            "where N is batch size, C is the number of channels, "
-            "H is the height of the feature, "
-            "and W is the width of the feature.");
+  AddOutput("Out", "(Tensor) The output tensor of fully connected operator. ");
   AddAttr<bool>("use_mkldnn",
                 "(bool, default false) Only used in mkldnn kernel")
       .SetDefault(false);