update

mindspore/ccsrc/parallel/graph_util/generate_graph.cc

@@ -28,9 +28,14 @@ namespace parallel {
 std::string GetOpPythonPath(const OperatorName &op_name) {
   // almost all ops are defined in two main paths
   const std::string ops_module = OP_PATH;
+  const std::string inner_ops_module = INNER_OP_PATH;
   py::module mod = py::module::import(common::SafeCStr(ops_module));
+  py::module inner_mod = py::module::import(common::SafeCStr(inner_ops_module));
   if (!py::hasattr(mod, common::SafeCStr(op_name))) {
-    MS_LOG(EXCEPTION) << ops_module << " don't have op:" << op_name;
+    if (!py::hasattr(inner_mod, common::SafeCStr(op_name))) {
+      MS_LOG(EXCEPTION) << ops_module << " or " << inner_ops_module << " don't have op:" << op_name;
+    }
+    return inner_ops_module;
   }
   return ops_module;
 }

mindspore/ccsrc/parallel/ops_info/gather_v2_p_info.cc

@@ -56,6 +56,12 @@ Status GatherV2PInfo::GetAttrs() {
     }
   }
 
+  // target=CPU, axis must be 0
+  if (target_ == "CPU" && axis_ != 0) {
+    MS_LOG(ERROR) << name_ << ": target is CPU, axis must be 0, but got " << axis_;
+    return FAILED;
+  }
+
   return SUCCESS;
 }
 
@@ -279,6 +285,11 @@ Status GatherV2PInfo::InferBias() {
   int32_t rank = g_device_manager->global_rank();
   auto input_shape = inputs_shape_.at(0);
   auto params_strategy = strategy_->GetInputDim().at(0);
+  // axis don't split
+  if (params_strategy.at(axis_) == 1) {
+    bias_ = 0;
+    return SUCCESS;
+  }
   // params_size=1, axis=0
   if ((input_shape.size() == 1) && (axis_ == 0)) {
     slice_size_ = input_shape.at(0) / params_strategy.at(0);
@@ -353,26 +364,35 @@ Status GatherV2PInfo::InferForwardCommunication() {
   }
   auto group_size = group_.GetDevNum();
   Attr attr_group;
-  // group size <= 8
-  std::vector<int32_t> rank_list;
-  if (group_size <= 8) {
-    reduce_scatter_flag_ = false;
-    operator_name = HOST_REDUCE_SCATTER;
-    rank_list = GetRankFromGroup(group_);
-    attr_group = std::make_pair(GROUP, MakeValue(rank_list));
-  } else {
-    // group size > 8
-    reduce_scatter_flag_ = true;
-    split_num_ = SizeToInt(group_size / 8);
-    CheckGlobalDeviceManager();
-    operator_name = REDUCE_SCATTER;
-    int32_t rank = g_device_manager->global_rank();
-    size_t repeat = group_size / 8;
-    for (size_t i = 0; i < repeat; ++i) {
-      rank_list.push_back(rank + SizeToInt(i * 8));
+  if (host_reduce_scatter_) {
+    // group size <= 8
+    std::vector<int32_t> rank_list;
+    if (group_size <= 8) {
+      reduce_scatter_flag_ = false;
+      operator_name = HOST_REDUCE_SCATTER;
+      rank_list = GetRankFromGroup(group_);
+      attr_group = std::make_pair(GROUP, MakeValue(rank_list));
+    } else {
+      // group size > 8, don't support host reduce_scatter
+      reduce_scatter_flag_ = true;
+      split_num_ = SizeToInt(group_size / 8);
+      CheckGlobalDeviceManager();
+      operator_name = REDUCE_SCATTER;
+      int32_t rank = g_device_manager->global_rank();
+      size_t repeat = group_size / 8;
+      for (size_t i = 0; i < repeat; ++i) {
+        rank_list.push_back(rank + SizeToInt(i * 8));
+      }
+      Group g = g_device_manager->CreateGroup(rank_list);
+      attr_group = std::make_pair(GROUP, MakeValue(g.name()));
     }
-    Group g = g_device_manager->CreateGroup(rank_list);
-    attr_group = std::make_pair(GROUP, MakeValue(g.name()));
+  } else {
+    operator_name = REDUCE_SCATTER;
+    if (InferGroup() != SUCCESS) {
+      MS_LOG(ERROR) << name_ << ": Infer Group failed.";
+      return FAILED;
+    }
+    attr_group = std::make_pair(GROUP, MakeValue(group_.name()));
   }
   Attr attr_op = std::make_pair(OP, MakeValue(REDUCE_OP_SUM));
   OperatorAttrs attrs = {attr_op, attr_group};
@@ -446,8 +466,8 @@ Status GatherV2PInfo::ComputeReplaceOp() {
   Attr param_offset = std::make_pair("offset", MakeValue(bias_));
   Attr param_flag = std::make_pair("reduce_scatter_flag", MakeValue(reduce_scatter_flag_));
   Attr param_split_num = std::make_pair("split_num", MakeValue(split_num_));
-  OperatorParams params = {std::make_pair(param_offset, 4), std::make_pair(param_flag, 5),
-                           std::make_pair(param_split_num, 6)};
+  OperatorParams params = {std::make_pair(param_offset, 3), std::make_pair(param_flag, 4),
+                           std::make_pair(param_split_num, 5)};
   OperatorArgs args = std::make_pair(attrs, params);
   Operator op = std::make_pair(op_name, args);
   replace_op_.push_back(op);

mindspore/ccsrc/parallel/ops_info/gather_v2_p_info.h

@@ -70,6 +70,7 @@ class GatherV2PInfo : public OperatorInfo {
   Group group_;
   bool reduce_scatter_flag_ = false;
   int32_t split_num_ = 1;
+  bool host_reduce_scatter_ = false;
 };
 
 class SparseGatherV2Info : public GatherV2PInfo {

mindspore/ccsrc/parallel/ops_info/ops_utils.h

@@ -55,6 +55,7 @@ constexpr char REDUCE_OP_SUM[] = "sum";
 constexpr char REDUCE_OP_MAX[] = "max";
 constexpr char REDUCE_OP_MIN[] = "min";
 constexpr char OP_PATH[] = "mindspore.ops.operations";
+constexpr char INNER_OP_PATH[] = "mindspore.ops.operations._inner_ops";
 constexpr char GET_OP_FUNCTION_PATH[] = "mindspore.parallel._utils";
 constexpr char GET_OP_FUNCTION[] = "_get_python_op";
 constexpr char KEEP_DIMS[] = "keep_dims";

mindspore/ccsrc/parallel/step_parallel.cc

@@ -536,7 +536,7 @@ std::vector<AnfNodePtr> ReplaceOpInput(const Operator &replace_op, const std::st
   std::vector<AnfNodePtr> replace_input = {NewValueNode(pyop_instance), node->input(1)};
   auto prim = GetValueNode<PrimitivePtr>(node->input(0));
   if (prim->name() == GATHERV2 || prim->name() == SPARSE_GATHERV2) {
-    replace_input = {NewValueNode(pyop_instance), node->input(1), node->input(2), node->input(3)};
+    replace_input = {NewValueNode(pyop_instance), node->input(1), node->input(2)};
   }
   if (!params.empty()) {
     Param param_first = *(params.begin());

tests/ut/python/parallel/test_gather_v2.py

@@ -184,7 +184,7 @@ def test_gatherv2_auto1():
     _executor.compile(net, x, y)
 
 
-def need_fix_test_gatherv2_cpu0():
+def test_gatherv2_cpu0():
     context.set_auto_parallel_context(device_num=8, global_rank=0, parallel_mode="semi_auto_parallel")
     strategy1 = ((8, 1), (1, 1))
     strategy2 = ((4, 2, 1), (4, 2, 1))
@@ -196,7 +196,7 @@ def need_fix_test_gatherv2_cpu0():
     _executor.compile(net, x, y)
 
 
-def need_fix_test_gatherv2_cpu1():
+def test_gatherv2_cpu1():
     context.set_auto_parallel_context(device_num=16, global_rank=0, parallel_mode="semi_auto_parallel")
     strategy1 = ((16, 1), (1, 1))
     strategy2 = ((4, 2, 1), (4, 2, 1))
@@ -208,7 +208,7 @@ def need_fix_test_gatherv2_cpu1():
     _executor.compile(net, x, y)
 
 
-def need_fix_test_gatherv2_cpu2():
+def test_gatherv2_cpu2():
     context.set_auto_parallel_context(device_num=8, global_rank=0, parallel_mode="semi_auto_parallel")
     strategy1 = ((1, 8), (1, 1))
     strategy2 = ((4, 2, 1), (4, 2, 1))

tests/ut/python/parallel/test_sparse_gather_v2.py

@@ -184,7 +184,7 @@ def test_gatherv2_auto1():
     _executor.compile(net, x, y)
 
 
-def need_fix_test_gatherv2_cpu0():
+def test_gatherv2_cpu0():
     context.set_auto_parallel_context(device_num=8, global_rank=0, parallel_mode="semi_auto_parallel")
     strategy1 = ((8, 1), (1, 1))
     strategy2 = ((4, 2, 1), (4, 2, 1))
@@ -196,7 +196,7 @@ def need_fix_test_gatherv2_cpu0():
     _executor.compile(net, x, y)
 
 
-def need_fix_test_gatherv2_cpu1():
+def test_gatherv2_cpu1():
     context.set_auto_parallel_context(device_num=16, global_rank=0, parallel_mode="semi_auto_parallel")
     strategy1 = ((16, 1), (1, 1))
     strategy2 = ((4, 2, 1), (4, 2, 1))
@@ -208,7 +208,7 @@ def need_fix_test_gatherv2_cpu1():
     _executor.compile(net, x, y)
 
 
-def need_fix_test_gatherv2_cpu2():
+def test_gatherv2_cpu2():
     context.set_auto_parallel_context(device_num=8, global_rank=0, parallel_mode="semi_auto_parallel")
     strategy1 = ((1, 8), (1, 1))
     strategy2 = ((4, 2, 1), (4, 2, 1))