Reusing converted weights

Author: kbinias

paddle/fluid/operators/conv_mkldnn_op.cc

@@ -130,12 +130,13 @@ class ConvMKLDNNHandler : public platform::MKLDNNHandler {
 
   std::shared_ptr<mkldnn::memory> AcquireWeightsMemoryFromPrimitive(
       const std::shared_ptr<mkldnn::memory> user_weights_memory_p,
-      std::vector<mkldnn::primitive>& pipeline) {  // NOLINT
+      const std::vector<mkldnn::primitive>& pipeline,
+      bool is_test = false) {  // NOLINT
     auto user_weights_pd = user_weights_memory_p->get_primitive_desc();
     auto weights_pd = conv_pd_->weights_primitive_desc();
     return this->AcquireMemory(weights_pd, user_weights_pd,
                                user_weights_memory_p, "@weights_mem_p",
-                               pipeline);
+                               pipeline, is_test);
   }
 
   std::shared_ptr<mkldnn::memory> AcquireBiasMemoryFromPrimitive(
@@ -266,6 +267,8 @@ class ConvMKLDNNOpKernel : public paddle::framework::OpKernel<T> {
     PADDLE_ENFORCE(paddle::platform::is_cpu_place(ctx.GetPlace()),
                    "It must use CPUPlace.");
 
+    const bool is_test = ctx.Attr<bool>("is_test");
+
     auto& dev_ctx =
         ctx.template device_context<paddle::platform::MKLDNNDeviceContext>();
     const auto& mkldnn_engine = dev_ctx.GetEngine();
@@ -371,7 +374,7 @@ class ConvMKLDNNOpKernel : public paddle::framework::OpKernel<T> {
     auto src_memory_p =
         handler.AcquireSrcMemoryFromPrimitive(user_src_memory_p, pipeline);
     auto weights_memory_p = handler.AcquireWeightsMemoryFromPrimitive(
-        user_weights_memory_p, pipeline);
+        user_weights_memory_p, pipeline, is_test);
     auto dst_memory_p =
         handler.AcquireDstMemoryFromPrimitive(to_void_cast<T>(output_data));
 

paddle/fluid/operators/conv_op.cc

@@ -109,6 +109,7 @@ framework::OpKernelType ConvOp::GetExpectedKernelType(
 }
 
 void Conv2DOpMaker::Make() {
+  AddAttr<bool>("is_test", "").SetDefault(false);
   AddInput(
       "Input",
       "(Tensor) The input tensor of convolution operator. "

paddle/fluid/platform/mkldnn_helper.h

@@ -191,8 +191,8 @@ class MKLDNNHandler {
       mkldnn::memory::primitive_desc& mpd,       // NOLINT
       mkldnn::memory::primitive_desc& user_mpd,  // NOLINT
       const std::shared_ptr<mkldnn::memory> user_memory_p,
-      const std::string& suffix,
-      std::vector<mkldnn::primitive>& pipeline) {  // NOLINT
+      const std::string& suffix, const std::vector<mkldnn::primitive>& pipeline,
+      bool is_test = false) {  // NOLINT
     // create reorder primitive if the input format is not the preferred one
     auto local_key = key_ + suffix;
     auto key_reorder_p = key_ + suffix + "reorder_p";
@@ -213,7 +213,7 @@ class MKLDNNHandler {
         pipeline.push_back(*reorder_p);
       }
       dev_ctx_.SetBlob(local_key, target_memory_p);
-    } else {
+    } else if (!is_test) {
       // Make reorder if needed
       auto reorder_p = std::static_pointer_cast<mkldnn::reorder>(
           dev_ctx_.GetBlob(key_reorder_p));