Add cpu test for parallel_executor_crf executor_fetch_feed, and enable these tests

paddle/fluid/framework/details/all_reduce_op_handle.cc

@@ -107,18 +107,18 @@ void AllReduceOpHandle::RunImpl() {
       auto &trg = *this->local_scopes_[0]
                        ->FindVar(kLocalExecScopeName)
                        ->Get<Scope *>()
-                       ->FindVar(in_var_handles[0]->name_)
+                       ->FindVar(out_var_handles[0]->name_)
                        ->GetMutable<framework::LoDTensor>();
 
       // Reduce All Tensor to trg in CPU
       ReduceLoDTensor func(lod_tensors, &trg);
       VisitDataType(ToDataType(lod_tensors[0]->type()), func);
 
-      for (size_t i = 0; i < local_scopes_.size(); ++i) {
+      for (size_t i = 1; i < local_scopes_.size(); ++i) {
         auto &scope =
             *local_scopes_[i]->FindVar(kLocalExecScopeName)->Get<Scope *>();
         auto &p = places_[i];
-        auto *var = scope.FindVar(in_var_handles[i]->name_);
+        auto *var = scope.FindVar(out_var_handles[i]->name_);
         auto *dev_ctx = dev_ctxes_[p];
 
         RunAndRecordEvent(p, [&trg, var, dev_ctx, p] {

paddle/fluid/framework/details/reduce_and_gather.h

@@ -37,7 +37,9 @@ struct ReduceLoDTensor {
     PADDLE_ENFORCE_NE(t0.numel(), 0);
     dst_tensor_.Resize(t0.dims());
     T *dst = dst_tensor_.mutable_data<T>(platform::CPUPlace());
-    std::copy(t0.data<T>(), t0.data<T>() + t0.numel(), dst);
+    if (dst != t0.data<T>()) {
+      std::copy(t0.data<T>(), t0.data<T>() + t0.numel(), dst);
+    }
 
     for (size_t i = 1; i < src_tensors_.size(); ++i) {
       auto &t = *src_tensors_[i];

python/paddle/fluid/tests/unittests/CMakeLists.txt

@@ -41,8 +41,8 @@ function(py_test_modules TARGET_NAME)
 endfunction()
 list(REMOVE_ITEM TEST_OPS test_warpctc_op)
 list(REMOVE_ITEM TEST_OPS test_dist_train)
-list(REMOVE_ITEM TEST_OPS test_parallel_executor_crf)
-list(REMOVE_ITEM TEST_OPS test_parallel_executor_fetch_feed)
+#list(REMOVE_ITEM TEST_OPS test_parallel_executor_crf)
+#list(REMOVE_ITEM TEST_OPS test_parallel_executor_fetch_feed)
 # TODO(wuyi): this test hungs on CI, will add it back later
 list(REMOVE_ITEM TEST_OPS test_listen_and_serv_op)
 foreach(TEST_OP ${TEST_OPS})

python/paddle/fluid/tests/unittests/test_parallel_executor_crf.py

@@ -17,6 +17,7 @@ import paddle.fluid as fluid
 import unittest
 import paddle
 import numpy as np
+import os
 
 word_dict, verb_dict, label_dict = conll05.get_dict()
 word_dict_len = len(word_dict)
@@ -101,7 +102,11 @@ def db_lstm(word, predicate, ctx_n2, ctx_n1, ctx_0, ctx_p1, ctx_p2, mark,
 
 
 class TestCRFModel(unittest.TestCase):
-    def check_network_convergence(self, is_sparse, build_strategy=None):
+    def check_network_convergence(self,
+                                  is_sparse,
+                                  build_strategy=None,
+                                  use_cuda=True):
+        os.environ['CPU_NUM'] = str(4)
         main = fluid.Program()
         startup = fluid.Program()
         with fluid.program_guard(main, startup):
@@ -145,12 +150,12 @@ class TestCRFModel(unittest.TestCase):
                     paddle.dataset.conll05.test(), buf_size=8192),
                 batch_size=16)
 
-            place = fluid.CUDAPlace(0)
+            place = fluid.CUDAPlace(0) if use_cuda else fluid.CPUPlace()
             exe = fluid.Executor(place)
             exe.run(startup)
 
             pe = fluid.ParallelExecutor(
-                use_cuda=True,
+                use_cuda=use_cuda,
                 loss_name=avg_cost.name,
                 build_strategy=build_strategy)
 
@@ -172,25 +177,33 @@ class TestCRFModel(unittest.TestCase):
         build_strategy = fluid.BuildStrategy()
         build_strategy.reduce_strategy = fluid.BuildStrategy.ReduceStrategy.AllReduce
         self.check_network_convergence(
-            is_sparse=True, build_strategy=build_strategy)
+            is_sparse=True, build_strategy=build_strategy, use_cuda=True)
+        self.check_network_convergence(
+            is_sparse=True, build_strategy=build_strategy, use_cuda=False)
 
     def test_update_dense_parameter_all_reduce(self):
         build_strategy = fluid.BuildStrategy()
         build_strategy.reduce_strategy = fluid.BuildStrategy.ReduceStrategy.AllReduce
         self.check_network_convergence(
-            is_sparse=False, build_strategy=build_strategy)
+            is_sparse=False, build_strategy=build_strategy, use_cuda=True)
+        self.check_network_convergence(
+            is_sparse=False, build_strategy=build_strategy, use_cuda=False)
 
     def test_update_sparse_parameter_reduce(self):
         build_strategy = fluid.BuildStrategy()
         build_strategy.reduce_strategy = fluid.BuildStrategy.ReduceStrategy.Reduce
         self.check_network_convergence(
-            is_sparse=True, build_strategy=build_strategy)
+            is_sparse=True, build_strategy=build_strategy, use_cuda=True)
+        self.check_network_convergence(
+            is_sparse=True, build_strategy=build_strategy, use_cuda=False)
 
     def test_update_dense_parameter_reduce(self):
         build_strategy = fluid.BuildStrategy()
         build_strategy.reduce_strategy = fluid.BuildStrategy.ReduceStrategy.Reduce
         self.check_network_convergence(
-            is_sparse=False, build_strategy=build_strategy)
+            is_sparse=False, build_strategy=build_strategy, use_cuda=True)
+        self.check_network_convergence(
+            is_sparse=False, build_strategy=build_strategy, use_cuda=False)
 
 
 if __name__ == '__main__':

python/paddle/fluid/tests/unittests/test_parallel_executor_fetch_feed.py

@@ -89,8 +89,8 @@ class TestFetchOp(unittest.TestCase):
         for i in range(iters):
             train_inputs.append(tst_reader_iter.next())
 
-        self.parallel_exe(train_inputs, seed=1, use_cuda=True)
         os.environ['CPU_NUM'] = str(4)
+        self.parallel_exe(train_inputs, seed=1, use_cuda=True)
         self.parallel_exe(train_inputs, seed=1, use_cuda=False)
 
 
@@ -134,8 +134,8 @@ class TestFeedParallel(unittest.TestCase):
                 break
 
     def test_feed_op(self):
-        self.parallel_exe(use_cuda=True, seed=1)
         os.environ['CPU_NUM'] = str(4)
+        self.parallel_exe(use_cuda=True, seed=1)
         self.parallel_exe(use_cuda=False, seed=1)
 
 

python/paddle/fluid/tests/unittests/test_parallel_executor_seresnext.py

@@ -135,6 +135,8 @@ class TestResnet(TestParallelExecutorBase):
                                  balance_parameter_opt_between_cards,
                                  use_cuda=True,
                                  iter=20):
+        os.environ['CPU_NUM'] = str(4)
+
         import functools
         batch_size = 2
         self.check_network_convergence(
@@ -147,12 +149,10 @@ class TestResnet(TestParallelExecutorBase):
         )
 
     def test_resnet(self):
-        os.environ['CPU_NUM'] = str(4)
         self.check_resnet_convergence(False, use_cuda=True)
         self.check_resnet_convergence(False, use_cuda=False, iter=5)
 
     def test_resnet_with_new_strategy(self):
-        os.environ['CPU_NUM'] = str(4)
         self.check_resnet_convergence(True, use_cuda=True)
         self.check_resnet_convergence(True, use_cuda=False, iter=5)