[psgpu]add checknan print and fix trainer device (#38131)

* trainer_device fix and checknan tool for psgpu;test=develop

* disable show_one_table;test=develop

paddle/fluid/framework/fleet/ps_gpu_wrapper.cc

@@ -454,9 +454,9 @@ void PSGPUWrapper::BuildGPUTask(std::shared_ptr<HeterContext> gpu_task) {
     this->HeterPs_->build_ps(i, gpu_task->device_keys_[i].data(),
                              gpu_task->device_values_[i].data(),
                              feature_keys_count[i], 500000, 2);
-    if (feature_keys_count[i] > 0) {
-      HeterPs_->show_one_table(i);
-    }
+    // if (feature_keys_count[i] > 0) {
+    //   HeterPs_->show_one_table(i);
+    // }
   };
   for (size_t i = 0; i < threads.size(); i++) {
     threads[i] = std::thread(build_func, i);

paddle/fluid/framework/ps_gpu_trainer.cc

@@ -75,6 +75,8 @@ void PSGPUTrainer::Initialize(const TrainerDesc& trainer_desc,
     workers_[i]->SetDumpParamVector(dump_param_);
     workers_[i]->InitRandomDumpConfig(trainer_desc);
     workers_[i]->SetDataFeed(readers[i]);
+    workers_[i]->SetPlace(places_[i]);
+    workers_[i]->SetReaderPlace(places_[i]);
     workers_[i]->Initialize(trainer_desc);
     workers_[i]->SetWorkerNum(place_num);
   }
@@ -102,8 +104,6 @@ void PSGPUTrainer::RegisterHeterCallback() {
 void PSGPUTrainer::InitTrainerEnv(const ProgramDesc& main_program,
                                   const platform::Place& place) {
   for (size_t i = 0; i < places_.size(); ++i) {
-    workers_[i]->SetPlace(places_[i]);
-    workers_[i]->SetReaderPlace(places_[i]);
     workers_[i]->SetRootScope(root_scope_);
     workers_[i]->CreateDeviceResource(main_program);  // Program
     workers_[i]->BindingDataFeedMemory();
@@ -216,7 +216,9 @@ void PSGPUTrainer::Finalize() {
       continue;
     }
     LoDTensor* root_tensor = root_var->GetMutable<LoDTensor>();
-
+    if (root_tensor == nullptr || !root_tensor->IsInitialized()) {
+      continue;
+    }
     for (size_t j = 0; j < places_.size(); j++) {
       Scope* cur_thread_scope = workers_[j]->GetThreadScope();
       Variable* thread_var =
@@ -225,6 +227,9 @@ void PSGPUTrainer::Finalize() {
         continue;
       }
       LoDTensor* thread_tensor = thread_var->GetMutable<LoDTensor>();
+      if (thread_tensor == nullptr || !thread_tensor->IsInitialized()) {
+        continue;
+      }
 #define MergeCallback(cpp_type, proto_type)                                    \
   do {                                                                         \
     if (root_tensor->type() == proto_type) {                                   \

paddle/fluid/framework/ps_gpu_worker.cc

@@ -15,6 +15,7 @@ limitations under the License. */
 #include "paddle/fluid/framework/device_worker.h"
 #include "paddle/fluid/framework/device_worker_factory.h"
 #include "paddle/fluid/platform/cpu_helper.h"
+#include "paddle/fluid/platform/lodtensor_printer.h"
 #include "paddle/fluid/string/string_helper.h"
 
 #if (defined PADDLE_WITH_NCCL || defined PADDLE_WITH_RCCL) && \
@@ -149,6 +150,38 @@ void PSGPUWorker::TrainFiles() {
       DumpParam(*thread_scope_, batch_cnt);
     }
 
+    for (std::string& var_name : check_nan_var_names_) {
+      Variable* var = thread_scope_->FindVar(var_name);
+      if (var == nullptr) {
+        continue;
+      }
+      LoDTensor* tensor = var->GetMutable<LoDTensor>();
+      if (tensor == nullptr || !tensor->IsInitialized()) {
+        continue;
+      }
+      if (framework::TensorContainsInf(*tensor) ||
+          framework::TensorContainsNAN(*tensor)) {
+        static std::mutex mutex;
+        {
+          std::lock_guard<std::mutex> lock(mutex);
+          VLOG(0) << "worker " << thread_id_ << ": " << var_name
+                  << " cantains inf or nan";
+          auto all_vars = thread_scope_->LocalVarNames();
+          std::stringstream ss;
+          ss << "====== worker " << thread_id_ << "======\n";
+          for (auto& local_var : all_vars) {
+            platform::PrintVar(thread_scope_, local_var, local_var, &ss);
+            ss << "\n";
+          }
+          std::cout << ss.str() << std::endl;
+          VLOG(0) << "worker " << thread_id_ << "print nan var done....";
+        }
+        sleep(600);
+        exit(-1);
+      }
+    }
+
+    dev_ctx_->Wait();
     PrintFetchVars();
     thread_scope_->DropKids();
     ++batch_cnt;

paddle/fluid/operators/tensor_formatter.h

@@ -35,6 +35,10 @@ class TensorFormatter {
                      const std::string& tensor_name = "",
                      const std::string& message = "");
 
+  template <typename T>
+  void FormatData(const framework::LoDTensor& print_tensor,
+                  std::stringstream& log_stream);
+
   void Print(const framework::LoDTensor& print_tensor,
              const std::string& tensor_name = "",
              const std::string& message = "");
@@ -46,10 +50,6 @@ class TensorFormatter {
   void SetSummarize(int64_t summarize);
 
  private:
-  template <typename T>
-  void FormatData(const framework::LoDTensor& print_tensor,
-                  std::stringstream& log_stream);
-
   int64_t summarize_ = -1;
   bool print_tensor_type_ = true;
   bool print_tensor_shape_ = true;

paddle/fluid/platform/lodtensor_printer.cc

@@ -39,15 +39,29 @@ void PrintVar(framework::Scope* scope, const std::string& var_name,
             << " does not exist in your scope";
     return;
   }
+  if (!tensor->IsInitialized()) {
+    VLOG(0) << "tensor of variable " << var_name
+            << " does not initialized in your scope";
+    return;
+  }
 
-  *sstream << print_info << ": ";
+  *sstream << print_info;
 
 #define PrintTensorCallback(cpp_type, proto_type)    \
   do {                                               \
     if (tensor->type() == proto_type) {              \
       *sstream << "[";                               \
-      auto* data = tensor->data<cpp_type>();      \
+      const cpp_type* data = nullptr;                \
+      framework::LoDTensor cpu_tensor;               \
+      if (is_cpu_place(tensor->place())) {           \
+        data = tensor->data<cpp_type>();             \
+      } else {                                       \
+        platform::CPUPlace cpu_place;                \
+        TensorCopy(*tensor, cpu_place, &cpu_tensor); \
+        data = cpu_tensor.data<cpp_type>();          \
+      }                                              \
       auto element_num = tensor->numel();            \
+      *sstream << element_num << "]:[";              \
       if (element_num > 0) {                         \
         *sstream << data[0];                         \
         for (int j = 1; j < element_num; ++j) {      \