[oneDNN] Second fix to #33021 (#33471)

* - Second fix

- fix

* - fix

paddle/fluid/inference/api/analysis_predictor.cc

@@ -343,8 +343,6 @@ void AnalysisPredictor::MkldnnPreSet(
     platform::MKLDNNDeviceContext::tls().set_cur_mkldnn_session_id(
         platform::MKLDNNDeviceContextThreadLocals::
             kMKLDNNSessionID_CacheClearing);
-    platform::MKLDNNDeviceContext::tls().set_cur_input_shape_cache_capacity(
-        config_.mkldnn_cache_capacity_);
     // Set current_input_shape for caching dynamic shape.
     std::stringstream ss;
     for (size_t i = 0; i < inputs_shape.size(); ++i) {
@@ -355,6 +353,9 @@ void AnalysisPredictor::MkldnnPreSet(
     VLOG(2) << "Set input shape=" << ss.str();
     platform::MKLDNNDeviceContext::tls().set_cur_input_shape_str(ss.str());
   }
+  platform::MKLDNNDeviceContext::tls().set_cur_input_shape_cache_capacity(
+      config_.mkldnn_cache_capacity_);
+
 #endif
 }
 
@@ -370,10 +371,9 @@ void AnalysisPredictor::MkldnnPostReset() {
       CHECK_LE(shape_blob_size,
                static_cast<size_t>(config_.mkldnn_cache_capacity_));
     }
-    paddle::platform::MKLDNNDeviceContext::tls().set_cur_mkldnn_session_id(
-        platform::MKLDNNDeviceContextThreadLocals::kMKLDNNSessionID_Default);
-    platform::MKLDNNDeviceContext::tls().set_cur_input_shape_cache_capacity(0);
-    platform::MKLDNNDeviceContext::tls().set_cur_input_shape_str("");
+    // We cannot reset to the default cache settings
+    // as there maybe CopyToCPU method used and oneDNN
+    // primitives are used there so cache would grow
   }
 #endif
 }

paddle/fluid/inference/tests/api/analyzer_detect_functional_mkldnn_tester.cc

@@ -120,6 +120,19 @@ void validate_cache_onednn(int cache_capacity = 1) {
   file.close();
   infer_file.close();
 
+  // Pick first output tensor from model
+  // as internally reorders may be called
+  // so it will impact cache size
+  auto output_names = predictor->GetOutputNames();
+  auto output_t = predictor->GetOutputTensor(output_names[0]);
+  std::vector<int> output_shape = output_t->shape();
+  size_t out_num = std::accumulate(output_shape.begin(), output_shape.end(), 1,
+                                   std::multiplies<int>());
+  std::vector<float> out_data;
+  out_data.resize(out_num);
+  output_t->CopyToCpu(out_data.data());
+
+  // Release predictor (relevant cache should be emptied)
   predictor.reset(nullptr);
   cache_filling.push_back(GetNumCachedObjects());