update code

core/general-client/include/general_model.h

@@ -39,11 +39,10 @@ namespace baidu {
 namespace paddle_serving {
 namespace general_model {
 
-class PredictorRes {
+class ModelRes {
  public:
-  PredictorRes() {}
-  ~PredictorRes() {}
-
+  ModelRes() {}
+  ~ModelRes() {}
  public:
   const std::vector<std::vector<int64_t>>& get_int64_by_name(
       const std::string& name) {
@@ -53,14 +52,33 @@ class PredictorRes {
       const std::string& name) {
     return _float_map[name];
   }
+ public:
+  std::map<std::string, std::vector<std::vector<int64_t>>> _int64_map;
+  std::map<std::string, std::vector<std::vector<float>>> _float_map;
+};
+
+class PredictorRes {
+ public:
+  PredictorRes() {}
+  ~PredictorRes() {}
+
+ public:
+  void clear() { _models.clear();}
+  const std::vector<std::vector<int64_t>>& get_int64_by_name(
+      const int model_idx, const std::string& name) {
+    return _models[model_idx].get_int64_by_name(name);
+  }
+  const std::vector<std::vector<float>>& get_float_by_name(
+      const int model_idx, const std::string& name) {
+    return _models[model_idx].get_float_by_name(name);
+  }
   void set_variant_tag(const std::string& variant_tag) {
     _variant_tag = variant_tag;
   }
   const std::string& variant_tag() { return _variant_tag; }
+  int models_num() {return _models.size();}
 
- public:
-  std::map<std::string, std::vector<std::vector<int64_t>>> _int64_map;
-  std::map<std::string, std::vector<std::vector<float>>> _float_map;
+  std::vector<ModelRes> _models;
 
  private:
   std::string _variant_tag;

core/general-client/src/general_model.cpp

@@ -139,8 +139,7 @@ int PredictorClient::predict(const std::vector<std::vector<float>> &float_feed,
                              const std::vector<std::string> &fetch_name,
                              PredictorRes &predict_res,
                              const int &pid) {  // NOLINT
-  predict_res._int64_map.clear();
-  predict_res._float_map.clear();
+  predict_res.clear();
   Timer timeline;
   int64_t preprocess_start = timeline.TimeStampUS();
   _api.thrd_clear();
@@ -215,30 +214,37 @@ int PredictorClient::predict(const std::vector<std::vector<float>> &float_feed,
     VLOG(2) << "predict done.";
     client_infer_end = timeline.TimeStampUS();
     postprocess_start = client_infer_end;
+    // severaal model output
+    uint32_t model_num = res.outputs_size();
+    predict_res._models.resize(model_num);
+    for (uint32_t m_idx = 0; m_idx < model_num; ++m_idx) {
+      VLOG(2) << "process model output index: " << m_idx;
+      auto output = res.outputs(m_idx);
       for (auto &name : fetch_name) {
         int idx = _fetch_name_to_idx[name];
         VLOG(2) << "fetch name: " << name;
         if (_fetch_name_to_type[name] == 0) {
-        int len = res.insts(0).tensor_array(idx).int64_data_size();
+          int len = output.insts(0).tensor_array(idx).int64_data_size();
           VLOG(2) << "fetch tensor : " << name << " type: int64 len : " << len;
-        predict_res._int64_map[name].resize(1);
-        predict_res._int64_map[name][0].resize(len);
+          predict_res._models[m_idx]._int64_map[name].resize(1);
+          predict_res._models[m_idx]._int64_map[name][0].resize(len);
           for (int i = 0; i < len; ++i) {
-          predict_res._int64_map[name][0][i] =
-              res.insts(0).tensor_array(idx).int64_data(i);
+            predict_res._models[m_idx]._int64_map[name][0][i] =
+                output.insts(0).tensor_array(idx).int64_data(i);
           }
         } else if (_fetch_name_to_type[name] == 1) {
-        int len = res.insts(0).tensor_array(idx).float_data_size();
+          int len = output.insts(0).tensor_array(idx).float_data_size();
           VLOG(2) << "fetch tensor : " << name << " type: float32 len : " << len;
-        predict_res._float_map[name].resize(1);
-        predict_res._float_map[name][0].resize(len);
+          predict_res._models[m_idx]._float_map[name].resize(1);
+          predict_res._models[m_idx]._float_map[name][0].resize(len);
           for (int i = 0; i < len; ++i) {
-          predict_res._float_map[name][0][i] =
-              res.insts(0).tensor_array(idx).float_data(i);
+            predict_res._models[m_idx]._float_map[name][0][i] =
+                output.insts(0).tensor_array(idx).float_data(i);
+          }
         }
       }
-      postprocess_end = timeline.TimeStampUS();
     }
+    postprocess_end = timeline.TimeStampUS();
   }
 
   if (FLAGS_profile_client) {
@@ -249,7 +255,7 @@ int PredictorClient::predict(const std::vector<std::vector<float>> &float_feed,
         << "prepro_1:" << preprocess_end << " "
         << "client_infer_0:" << client_infer_start << " "
         << "client_infer_1:" << client_infer_end << " ";
-
+    //TODO: multi-model
     if (FLAGS_profile_server) {
       int op_num = res.profile_time_size() / 2;
       for (int i = 0; i < op_num; ++i) {
@@ -276,8 +282,7 @@ int PredictorClient::batch_predict(
     const int &pid) {
   int batch_size = std::max(float_feed_batch.size(), int_feed_batch.size());
 
-  predict_res_batch._int64_map.clear();
-  predict_res_batch._float_map.clear();
+  predict_res_batch.clear();
   Timer timeline;
   int64_t preprocess_start = timeline.TimeStampUS();
 
@@ -294,7 +299,7 @@ int PredictorClient::batch_predict(
   for (auto &name : fetch_name) {
     req.add_fetch_var_names(name);
   }
-  //
+  
   for (int bi = 0; bi < batch_size; bi++) {
     VLOG(2) << "prepare batch " << bi;
     std::vector<Tensor *> tensor_vec;
@@ -371,34 +376,40 @@ int PredictorClient::batch_predict(
   } else {
     client_infer_end = timeline.TimeStampUS();
     postprocess_start = client_infer_end;
+    uint32_t model_num = res.outputs_size();
+    predict_res_batch._models.resize(model_num);
+    for (uint32_t m_idx = 0; m_idx < model_num; ++m_idx) {
+      VLOG(2) << "process model output index: " << m_idx;
+      auto output = res.outputs(m_idx);
       for (auto &name : fetch_name) {
-      predict_res_batch._int64_map[name].resize(batch_size);
-      predict_res_batch._float_map[name].resize(batch_size);
+        predict_res_batch._models[m_idx]._int64_map[name].resize(batch_size);
+        predict_res_batch._models[m_idx]._float_map[name].resize(batch_size);
       }
       for (int bi = 0; bi < batch_size; bi++) {
         for (auto &name : fetch_name) {
           int idx = _fetch_name_to_idx[name];
-        int len = res.insts(bi).tensor_array(idx).data_size();
+          int len = output.insts(bi).tensor_array(idx).data_size();
           if (_fetch_name_to_type[name] == 0) {
-          int len = res.insts(bi).tensor_array(idx).int64_data_size();
+            int len = output.insts(bi).tensor_array(idx).int64_data_size();
             VLOG(2) << "fetch tensor : " << name << " type: int64 len : " << len;
-          predict_res_batch._int64_map[name][bi].resize(len);
+            predict_res_batch._models[m_idx]._int64_map[name][bi].resize(len);
             VLOG(2) << "fetch name " << name << " index " << idx << " first data "
-                  << res.insts(bi).tensor_array(idx).int64_data(0);
+                    << output.insts(bi).tensor_array(idx).int64_data(0);
             for (int i = 0; i < len; ++i) {
-            predict_res_batch._int64_map[name][bi][i] =
-                res.insts(bi).tensor_array(idx).int64_data(i);
+              predict_res_batch._models[m_idx]._int64_map[name][bi][i] =
+                  output.insts(bi).tensor_array(idx).int64_data(i);
             }
           } else if (_fetch_name_to_type[name] == 1) {
-          int len = res.insts(bi).tensor_array(idx).float_data_size();
+            int len = output.insts(bi).tensor_array(idx).float_data_size();
             VLOG(2) << "fetch tensor : " << name
                     << " type: float32 len : " << len;
-          predict_res_batch._float_map[name][bi].resize(len);
+            predict_res_batch._models[m_idx]._float_map[name][bi].resize(len);
             VLOG(2) << "fetch name " << name << " index " << idx << " first data "
-                  << res.insts(bi).tensor_array(idx).float_data(0);
+                    << output.insts(bi).tensor_array(idx).float_data(0);
             for (int i = 0; i < len; ++i) {
-            predict_res_batch._float_map[name][bi][i] =
-                res.insts(bi).tensor_array(idx).float_data(i);
+              predict_res_batch._models[m_idx]._float_map[name][bi][i] =
+                  output.insts(bi).tensor_array(idx).float_data(i);
+            }
           }
         }
       }
@@ -414,7 +425,7 @@ int PredictorClient::batch_predict(
         << "prepro_1:" << preprocess_end << " "
         << "client_infer_0:" << client_infer_start << " "
         << "client_infer_1:" << client_infer_end << " ";
-
+    //TODO: multi-models
     if (FLAGS_profile_server) {
       int op_num = res.profile_time_size() / 2;
       for (int i = 0; i < op_num; ++i) {

core/general-client/src/pybind_general_model.cpp

@@ -31,17 +31,19 @@ PYBIND11_MODULE(serving_client, m) {
   py::class_<PredictorRes>(m, "PredictorRes", py::buffer_protocol())
       .def(py::init())
       .def("get_int64_by_name",
-           [](PredictorRes &self, std::string &name) {
-             return self.get_int64_by_name(name);
+           [](PredictorRes &self, int model_idx, std::string &name) {
+             return self.get_int64_by_name(model_idx, name);
            },
            py::return_value_policy::reference)
       .def("get_float_by_name",
-           [](PredictorRes &self, std::string &name) {
-             return self.get_float_by_name(name);
+           [](PredictorRes &self, int model_idx, std::string &name) {
+             return self.get_float_by_name(model_idx, name);
            },
            py::return_value_policy::reference)
       .def("variant_tag",
-           [](PredictorRes &self) { return self.variant_tag(); });
+           [](PredictorRes &self) { return self.variant_tag(); })
+      .def("models_num",
+           [](PredictorRes &self) {return self.models_num(); });
 
   py::class_<PredictorClient>(m, "PredictorClient", py::buffer_protocol())
       .def(py::init())

core/general-server/op/general_infer_op.cpp

@@ -37,40 +37,41 @@ using baidu::paddle_serving::predictor::PaddleGeneralModelConfig;
 
 int GeneralInferOp::inference() {
   VLOG(2) << "Going to run inference";
-  //const GeneralBlob *input_blob = get_depend_argument<GeneralBlob>(pre_name());
+  // const GeneralBlob *input_blob =
+  // get_depend_argument<GeneralBlob>(pre_name());
+  VLOG(2) << "try to get output_blob";
   GeneralBlob *output_blob = mutable_data<GeneralBlob>();
-  VLOG(2) << "finish get output_blob";
+  fprintf(stderr, "[output] blob address %x\n", output_blob);
   TensorVector *out = &output_blob->tensor_vector;
-  VLOG(2) << "finish get *out";
 
   const std::vector<std::string> pre_node_names = pre_names();
   VLOG(2) << "pre node names size: " << pre_node_names.size();
+
   TensorVector input;
   int batch_size = 0;
   const GeneralBlob *input_blob;
-  for (int i = 0; i < (int)pre_node_names.size(); ++i) {
-    VLOG(2) << "pre names[" << i << "]: "
-            << pre_node_names[i];
-    input_blob =
-        get_depend_argument<GeneralBlob>(pre_node_names[i]);
-    fprintf(stderr, "input blob address %x\n", input_blob);
+  for (uint32_t i = 0; i < pre_node_names.size(); ++i) {
+    VLOG(2) << "pre names[" << i << "]: " << pre_node_names[i];
+    input_blob = get_depend_argument<GeneralBlob>(pre_node_names[i]);
     if (!input_blob) {
-      LOG(ERROR) << "Failed mutable depended argument, op:" << pre_node_names[i];
+      LOG(ERROR) << "Failed mutable depended argument, op:"
+                 << pre_node_names[i];
       return -1;
     }
+    fprintf(stderr, "[input] blob address %x\n", input_blob);
+
     batch_size = input_blob->GetBatchSize();
     VLOG(2) << "batch size of input: " << batch_size;
-    for (int j = 0; j < input_blob->tensor_vector.size(); ++j) {
-      VLOG(2) << "input tensor[" << j << "]: "
-              << input_blob->tensor_vector[j].name;
+    for (uint32_t j = 0; j < input_blob->tensor_vector.size(); ++j) {
+      VLOG(2) << "input tensor[" << j
+              << "]: " << input_blob->tensor_vector[j].name;
       input.push_back(input_blob->tensor_vector[j]);
-      VLOG(2) << "add an input tensor name: " << input_blob->tensor_vector[j].name;
+      VLOG(2) << "add an input tensor name: "
+              << input_blob->tensor_vector[j].name;
     }
   }
 
-  VLOG(2) << "get output blob done.";
   const TensorVector *in = &input;
-  VLOG(2) << "get input done.";
 
   batch_size = 1;
   VLOG(2) << "infer batch size: " << batch_size;
@@ -81,7 +82,7 @@ int GeneralInferOp::inference() {
   timeline.Start();
 
   VLOG(2) << "input of op " << op_name();
-  for (int i = 0; i < in->size(); ++i) {
+  for (uint32_t i = 0; i < in->size(); ++i) {
     VLOG(2) << in->at(i).name;
   }
 
@@ -94,7 +95,7 @@ int GeneralInferOp::inference() {
   }
 
   VLOG(2) << "output of op " << op_name();
-  for (int i = 0; i < out->size(); ++i) {
+  for (uint32_t i = 0; i < out->size(); ++i) {
     VLOG(2) << out->at(i).name;
   }
 

core/general-server/op/general_reader_op.cpp

@@ -80,6 +80,7 @@ int GeneralReaderOp::inference() {
   std::vector<int64_t> capacity;
 
   GeneralBlob *res = mutable_data<GeneralBlob>();
+  fprintf(stderr, "[reader] out blob address %x\n", res);
   TensorVector *out = &res->tensor_vector;
 
   res->SetBatchSize(batch_size);

core/general-server/op/general_response_op.cpp

@@ -33,6 +33,7 @@ using baidu::paddle_serving::predictor::general_model::Tensor;
 using baidu::paddle_serving::predictor::general_model::Response;
 using baidu::paddle_serving::predictor::general_model::Request;
 using baidu::paddle_serving::predictor::general_model::FetchInst;
+using baidu::paddle_serving::predictor::general_model::ModelOutput;
 using baidu::paddle_serving::predictor::InferManager;
 using baidu::paddle_serving::predictor::PaddleGeneralModelConfig;
 
@@ -40,22 +41,12 @@ int GeneralResponseOp::inference() {
   const std::vector<std::string> pre_node_names = pre_names();
   VLOG(2) << "pre node names size: " << pre_node_names.size();
   
-  const GeneralBlob *input_blob = get_depend_argument<GeneralBlob>(pre_node_names[0]);
-
-  if (!input_blob) {
-    LOG(ERROR) << "Failed mutable depended argument, op: " << pre_node_names[0];
-    return -1;
-  }
-
-  const TensorVector *in = &input_blob->tensor_vector;
-  int batch_size = input_blob->GetBatchSize();
-
-  VLOG(2) << "input batch size: " << batch_size;
-
   const Request *req = dynamic_cast<const Request *>(get_request_message());
+  // response inst with only fetch_var_names
+  Response *res = mutable_data<Response>();
 
   Timer timeline;
-  // double response_time = 0.0;
+  // double resionse_time = 0.0;
   // timeline.Start();
   int64_t start = timeline.TimeStampUS();
 
@@ -74,11 +65,26 @@ int GeneralResponseOp::inference() {
         model_config->_fetch_alias_name_to_index[req->fetch_var_names(i)];
   }
 
-  // response inst with only fetch_var_names
-  Response *res = mutable_data<Response>();
+  const GeneralBlob *input_blob;
+  for (uint32_t i = 0; i < pre_node_names.size(); ++i) {
+    VLOG(2) << "pre names[" << i << "]: "
+            << pre_node_names[i] << " ("
+            << pre_node_names.size() << ")";
+    input_blob = get_depend_argument<GeneralBlob>(pre_node_names[i]);
+    fprintf(stderr, "input(%s) blob address %x\n", pre_node_names[i].c_str(), input_blob);
+    if (!input_blob) {
+      LOG(ERROR) << "Failed mutable depended argument, op: " << pre_node_names[0];
+      return -1;
+    }
 
+    const TensorVector *in = &input_blob->tensor_vector;
+    int batch_size = input_blob->GetBatchSize();
+    VLOG(2) << "input batch size: " << batch_size;
+
+    //TODO
+    ModelOutput *output = res->add_outputs();
     for (int i = 0; i < batch_size; ++i) {
-    FetchInst *fetch_inst = res->add_insts();
+      FetchInst *fetch_inst = output->add_insts();
       for (auto &idx : fetch_index) {
         Tensor *tensor = fetch_inst->add_tensor_array();
         // currently only response float tensor or lod_tensor
@@ -108,7 +114,7 @@ int GeneralResponseOp::inference() {
           for (int j = 0; j < batch_size; ++j) {
             for (int k = in->at(idx).lod[0][j]; k < in->at(idx).lod[0][j + 1];
                  k++) {
-            FetchInst *fetch_p = res->mutable_insts(j);
+              FetchInst *fetch_p = output->mutable_insts(j);
               fetch_p->mutable_tensor_array(var_idx)->add_int64_data(data_ptr[k]);
             }
           }
@@ -117,14 +123,14 @@ int GeneralResponseOp::inference() {
           if (var_size == batch_size) {
             for (int j = 0; j < batch_size; ++j) {
               for (int k = j * cap; k < (j + 1) * cap; ++k) {
-              FetchInst *fetch_p = res->mutable_insts(j);
+                FetchInst *fetch_p = output->mutable_insts(j);
                 fetch_p->mutable_tensor_array(var_idx)->add_int64_data(
                     data_ptr[k]);
               }
             }
           } else {
             for (int j = 0; j < batch_size; ++j) {
-            FetchInst *fetch_p = res->mutable_insts(j);
+              FetchInst *fetch_p = output->mutable_insts(j);
               fetch_p->mutable_tensor_array(var_idx)->add_int64_data(data_ptr[0]);
             }
           }
@@ -136,7 +142,7 @@ int GeneralResponseOp::inference() {
           for (int j = 0; j < batch_size; ++j) {
             for (int k = in->at(idx).lod[0][j]; k < in->at(idx).lod[0][j + 1];
                  k++) {
-            FetchInst *fetch_p = res->mutable_insts(j);
+              FetchInst *fetch_p = output->mutable_insts(j);
               fetch_p->mutable_tensor_array(var_idx)->add_float_data(data_ptr[k]);
             }
           }
@@ -145,14 +151,14 @@ int GeneralResponseOp::inference() {
           if (var_size == batch_size) {
             for (int j = 0; j < batch_size; ++j) {
               for (int k = j * cap; k < (j + 1) * cap; ++k) {
-              FetchInst *fetch_p = res->mutable_insts(j);
+                FetchInst *fetch_p = output->mutable_insts(j);
                 fetch_p->mutable_tensor_array(var_idx)->add_float_data(
                     data_ptr[k]);
               }
             }
           } else {
             for (int j = 0; j < batch_size; ++j) {
-            FetchInst *fetch_p = res->mutable_insts(j);
+              FetchInst *fetch_p = output->mutable_insts(j);
               fetch_p->mutable_tensor_array(var_idx)->add_float_data(data_ptr[0]);
             }
           }
@@ -160,12 +166,17 @@ int GeneralResponseOp::inference() {
         var_idx++;
       }
     }
+  }
 
   if (req->profile_server()) {
     int64_t end = timeline.TimeStampUS();
+    for (uint32_t i = 0; i< pre_node_names.size(); ++i) {
+      input_blob = get_depend_argument<GeneralBlob>(pre_node_names[i]);
       VLOG(2) << "p size for input blob: " << input_blob->p_size;
+      ModelOutput* output = res->mutable_outputs(i);
       for (int i = 0; i < input_blob->p_size; ++i) {
-      res->add_profile_time(input_blob->time_stamp[i]);
+        output->add_profile_time(input_blob->time_stamp[i]);
+      }
     }
     // TODO(guru4elephant): find more elegant way to do this
     res->add_profile_time(start);

core/general-server/op/general_text_response_op.cpp

@@ -39,13 +39,17 @@ int GeneralTextResponseOp::inference() {
   const std::vector<std::string> pre_node_names = pre_names();
   VLOG(2) << "pre node names size: " << pre_node_names.size();
 
-  const GeneralBlob *input_blob = get_depend_argument<GeneralBlob>(pre_node_names[0]);
+  const GeneralBlob *input_blob =
+      get_depend_argument<GeneralBlob>(pre_node_names[0]);
 
   if (!input_blob) {
     LOG(ERROR) << "Failed mutable depended argument, op: " << pre_node_names[0];
     return -1;
   }
 
+  LOG(ERROR) << "Error!";
+  return -1;
+  /*
   const TensorVector *in = &input_blob->tensor_vector;
   int batch_size = input_blob->GetBatchSize();
 
@@ -127,7 +131,7 @@ int GeneralTextResponseOp::inference() {
     // TODO(guru4elephant): find more elegant way to do this
     res->add_profile_time(start);
     res->add_profile_time(end);
-  }
+  }*/
 
   return 0;
 }

core/general-server/proto/general_model_service.proto

@@ -39,10 +39,15 @@ message Request {
 };
 
 message Response {
-  repeated FetchInst insts = 1;
+  repeated ModelOutput outputs = 1;
   repeated int64 profile_time = 2;
 };
 
+message ModelOutput {
+  repeated FetchInst insts = 1;
+  repeated int64 profile_time = 2;
+}
+
 service GeneralModelService {
   rpc inference(Request) returns (Response);
   rpc debug(Request) returns (Response);

core/predictor/framework/dag_view.cpp

@@ -92,7 +92,8 @@ int DagView::init(Dag* dag, const std::string& service_name) {
       vnode->op = op;
       // Add depends
       for (auto it = vnode->conf->depends.begin();
-              it != vnode->conf->depends.end(); ++it) {
+           it != vnode->conf->depends.end();
+           ++it) {
         std::string pre_node_name = it->first;
         VLOG(2) << "add op pre name: \n"
                 << "current op name: " << vnode->op->op_name()
@@ -103,11 +104,11 @@ int DagView::init(Dag* dag, const std::string& service_name) {
     }
     // TODO(guru4elephant): this seems buggy, please review later
     /*if (si > 0) {*/
-      //VLOG(2) << "set op pre name: \n"
+    // VLOG(2) << "set op pre name: \n"
     //<< "current op name: " << vstage->nodes.back()->op->op_name()
     //<< " previous op name: "
     //<< _view[si - 1]->nodes.back()->op->op_name();
-      //vstage->nodes.back()->op->set_pre_node_name(
+    // vstage->nodes.back()->op->set_pre_node_name(
     //_view[si - 1]->nodes.back()->op->op_name());
     /*}*/
     _view.push_back(vstage);

core/predictor/framework/server.cpp

@@ -28,6 +28,7 @@
 #include "core/predictor/framework/manager.h"
 #include "core/predictor/framework/resource.h"
 #include "core/predictor/framework/service_manager.h"
+#define BLOG(fmt, ...) printf("[%s:%s]:%d "fmt"\n", __FILE__, __FUNCTION__, __LINE__, ##__VA_ARGS__)
 
 namespace baidu {
 namespace paddle_serving {
@@ -85,6 +86,7 @@ int ServerManager::start_and_wait() {
 
   boost::unordered_map<std::string, Service*>::iterator it;
   for (it = _format_services.begin(); it != _format_services.end(); it++) {
+    BLOG("\n\nservice name: %s", it->first.c_str());
     if (_server.AddService(it->second, brpc::SERVER_DOESNT_OWN_SERVICE) != 0) {
       LOG(ERROR) << "Failed to add service of format:" << it->first << "!";
       return -1;

core/predictor/framework/service.cpp

@@ -139,6 +139,7 @@ const std::string& InferService::name() const { return _infer_service_format; }
 int InferService::inference(const google::protobuf::Message* request,
                             google::protobuf::Message* response,
                             butil::IOBufBuilder* debug_os) {
+  BLOG("\n=====> start to inference");
   TRACEPRINTF("start to inference");
   // when funtion call begins, framework will reset
   // thread local variables&resources automatically.

core/predictor/framework/workflow.cpp

@@ -16,7 +16,9 @@
 #include <string>
 #include "core/predictor/common/inner_common.h"
 #include "core/predictor/framework/predictor_metric.h"  // PredictorMetric
-#define BLOG(fmt, ...) printf("[%s:%s]:%d "fmt"\n", __FILE__, __FUNCTION__, __LINE__, ##__VA_ARGS__)
+#define BLOG(fmt, ...) \
+  printf(              \
+      "[%s:%s]:%d " fmt "\n", __FILE__, __FUNCTION__, __LINE__, ##__VA_ARGS__)
 
 namespace baidu {
 namespace paddle_serving {

core/predictor/op/op.h

@@ -19,6 +19,9 @@
 #include "core/predictor/framework/channel.h"
 #include "core/predictor/framework/op_repository.h"
 #include "core/predictor/framework/predictor_metric.h"  // PredictorMetric
+#include <cstdlib>
+#define BLOG(fmt, ...) printf("[%s:%s]:%d "fmt"\n", __FILE__, __FUNCTION__, __LINE__, ##__VA_ARGS__)
+#include<stdexcept>
 
 namespace baidu {
 namespace paddle_serving {
@@ -94,10 +97,6 @@ class Op {
   template <typename T>
   T* mutable_data() {
     Channel* channel = mutable_channel();
-    LOG(INFO) << "succ to get channel!";
-    auto x = (dynamic_cast<OpChannel<T>*>(channel))->data();
-    LOG(INFO) << "succ to x!";
-    return x;
     return (dynamic_cast<OpChannel<T>*>(channel))->data();
   }
 
@@ -136,7 +135,7 @@ class Op {
 
   const std::string& full_name() const { return _full_name; }
 
-  //const std::string& pre_name() const { return _pre_node_name; }
+  // const std::string& pre_name() const { return _pre_node_name; }
   const std::vector<std::string>& pre_names() const { return _pre_node_names; }
 
   void set_full_name(const std::string full_name) { _full_name = full_name; }
@@ -207,7 +206,7 @@ class Op {
   Bus* _bus;
   Dag* _dag;
   uint32_t _id;
-  //std::string _pre_node_name;  // only for sequential execution
+  // std::string _pre_node_name;  // only for sequential execution
   std::vector<std::string> _pre_node_names;  // for dag execution
   std::string _name;
   std::string _full_name;  // service_workflow_stageindex_opname
@@ -231,20 +230,19 @@ class OpWithChannel : public Op {
   // ---------- Implements ----------
 
   Channel* mutable_channel() {
-    LOG(INFO) << "op->mutable_data";
     if (_channel != NULL) {
-      LOG(INFO) << "op->mutable_data: return _channel";
+      LOG(INFO) << "op->mutable_data: _channel != NULL";
       return _channel;
     }
-    LOG(INFO) << "op->mutable_data: _channel == NULL";
+    LOG(INFO) << "try to get_object: _channel";
 
-    _channel = butil::get_object<ChannelType>();
+    //_channel = butil::get_object<ChannelType>();
+    //LOG(INFO) << butil::describe_objects<ChannelType>();
+    _channel = new ChannelType();
     if (!_channel) {
-      LOG(INFO) << "op->mutable_data: fail to get _channel";
       LOG(ERROR) << "Failed mutable channel of type:" << typeid(T).name();
       return NULL;
     }
-    LOG(INFO) << "op->mutable_data: succ to get _channel";
     _channel->init(this->id(), this->name());
     return _channel;
   }
@@ -252,10 +250,15 @@ class OpWithChannel : public Op {
   const Channel* get_channel() const { return _channel; }
 
   int release_channel() {
+    LOG(INFO) << "=====> _chaneel deinit";
     if (_channel) {
        _channel->deinit();
-      butil::return_object<ChannelType>(_channel);
+      delete _channel;
     }
+    /*if (_channel) {*/
+      //_channel->deinit();
+      //butil::return_object<ChannelType>(_channel);
+    /*}*/
 
     _channel = NULL;
     return 0;

core/predictor/src/pdserving.cpp

@@ -32,6 +32,7 @@
 #include "core/predictor/framework/server.h"
 #include "core/predictor/framework/service.h"
 #include "core/predictor/framework/workflow.h"
+#define BLOG(fmt, ...) printf("[%s:%s]:%d "fmt"\n", __FILE__, __FUNCTION__, __LINE__, ##__VA_ARGS__)
 
 using baidu::paddle_serving::predictor::ServerManager;
 using baidu::paddle_serving::predictor::WorkflowManager;
@@ -217,6 +218,7 @@ int main(int argc, char** argv) {
   FLAGS_stderrthreshold = 3;
 #endif
 
+  BLOG("\nServerManager::instance().start_and_wait()\n");
   if (ServerManager::instance().start_and_wait() != 0) {
     LOG(ERROR) << "Failed start server and wait!";
     return -1;

core/sdk-cpp/proto/general_model_service.proto

@@ -39,10 +39,15 @@ message Request {
 };
 
 message Response {
-  repeated FetchInst insts = 1;
+  repeated ModelOutput outputs = 1;
   repeated int64 profile_time = 2;
 };
 
+message ModelOutput {
+  repeated FetchInst insts = 1;
+  repeated int64 profile_time = 2;
+}
+
 service GeneralModelService {
   rpc inference(Request) returns (Response);
   rpc debug(Request) returns (Response);

ensemble-demo/client.py

@@ -15,6 +15,7 @@
 from paddle_serving_client import Client
 from imdb_reader import IMDBDataset
 import sys
+import time
 
 client = Client()
 client.load_client_config('imdb_bow_client_conf/serving_client_conf.prototxt')
@@ -26,12 +27,13 @@ client.connect(["127.0.0.1:9393"])
 imdb_dataset = IMDBDataset()
 imdb_dataset.load_resource('imdb.vocab')
 
-for i in range(40):
+for i in range(500):
     line = 'i am very sad | 0'
     word_ids, label = imdb_dataset.get_words_and_label(line)
     feed = {"words": word_ids}
     fetch = ["acc", "cost", "prediction"]
     fetch_map = client.predict(feed=feed, fetch=fetch)
     print("{} {}".format(i, fetch_map["prediction"][1]))
-    exit(0)
+    # time.sleep(1)
+    # exit(0)
 print('0.633530199528')

ensemble-demo/server.py

@@ -36,7 +36,8 @@ op_seq_maker.add_op(response_op, dependent_nodes=[add_op])
 server = Server()
 server.set_op_sequence(op_seq_maker.get_op_sequence())
 # server.load_model_config(sys.argv[1])
-model_configs = {'g1': 'imdb_bow_model', 'g2': 'imdb_cnn_model'}
+model_configs = {'g1': 'imdb_bow_model', 'g2': 'imdb_bow_model'}
+# model_configs = {'g1': 'imdb_bow_model', 'g2': 'imdb_cnn_model'}
 server.load_model_config(model_configs)
 server.prepare_server(workdir="work_dir1", port=9393, device="cpu")
 server.run_server()