remove 'multi-subgraphs' to internal

mindspore/parallel/__init__.py

@@ -17,7 +17,5 @@ This interface is ONLY used in Auto-parallel procedure.
 """
 from .algo_parameter_config import get_algo_parameters, reset_algo_parameters, \
     set_algo_parameters
-from ._cost_model_context import set_multi_subgraphs, get_multi_subgraphs
 
-__all__ = ["set_multi_subgraphs", "get_multi_subgraphs",
-           "get_algo_parameters", "reset_algo_parameters", "set_algo_parameters"]
+__all__ = ["get_algo_parameters", "reset_algo_parameters", "set_algo_parameters"]

mindspore/parallel/_cost_model_context.py

@@ -589,7 +589,7 @@ def reset_cost_model_context():
     """Reset cost model context attributes."""
     cost_model_context().reset_cost_model()
 
-def set_multi_subgraphs(multi_subgraph=True):
+def _set_multi_subgraphs(multi_subgraph=True):
     """
     Set the flag of ANF graph containing multiple subgraphs.
 
@@ -598,7 +598,7 @@ def set_multi_subgraphs(multi_subgraph=True):
     """
     cost_model_context().set_multi_subgraphs(multi_subgraph)
 
-def get_multi_subgraphs():
+def _get_multi_subgraphs():
     """
         Get the flag of ANF graph containing multiple subgraphs.
     """

mindspore/train/model.py

@@ -32,6 +32,7 @@ from .. import nn
 from ..nn.wrap.cell_wrapper import _VirtualDatasetCell
 from ..context import ParallelMode
 from ..parallel._utils import _need_to_full, _to_full_tensor
+from ..parallel._cost_model_context import _set_multi_subgraphs
 from ..common import dtype as mstype
 from .dataset_helper import DatasetHelper
 from . import amp
@@ -166,6 +167,9 @@ class Model:
 
         if self._parallel_mode in (ParallelMode.SEMI_AUTO_PARALLEL, ParallelMode.AUTO_PARALLEL):
             network.set_auto_parallel()
+            if self._optimizer is None:
+                # In this case, multiple optimizer(s) is supposed to be included in 'self._network'
+                _set_multi_subgraphs()
         return network
 
     def _build_eval_network(self, metrics, eval_network, eval_indexes):
@@ -190,6 +194,9 @@ class Model:
         if self._parallel_mode in (ParallelMode.SEMI_AUTO_PARALLEL, ParallelMode.AUTO_PARALLEL):
             if self._optimizer:
                 self._eval_network = _VirtualDatasetCell(self._eval_network)
+            if self._optimizer is None:
+                # In this case, multiple optimizer(s) is supposed to be included in 'self._network'
+                _set_multi_subgraphs()
             self._eval_network.set_auto_parallel()
 
     def _build_predict_network(self):
@@ -197,6 +204,7 @@ class Model:
         self._predict_network = self._network
         if self._parallel_mode in (ParallelMode.SEMI_AUTO_PARALLEL, ParallelMode.AUTO_PARALLEL):
             self._predict_network = _VirtualDatasetCell(self._network)
+            _set_multi_subgraphs()
             self._predict_network.set_auto_parallel()
 
     def _clear_metrics(self):

model_zoo/official/recommend/wide_and_deep/train_and_eval_auto_parallel.py

@@ -22,7 +22,6 @@ from mindspore import Model, context
 from mindspore.train.callback import ModelCheckpoint, CheckpointConfig, TimeMonitor
 from mindspore.context import ParallelMode
 from mindspore.communication.management import get_rank, get_group_size, init
-from mindspore.parallel import set_multi_subgraphs
 from mindspore.nn.wrap.cell_wrapper import VirtualDatasetCellTriple
 
 from src.wide_and_deep import PredictWithSigmoid, TrainStepWrap, NetWithLossClass, WideDeepModel
@@ -145,7 +144,6 @@ if __name__ == "__main__":
                         device_target=wide_deep_config.device_target, save_graphs=True)
     context.set_context(variable_memory_max_size="24GB")
     context.set_context(enable_sparse=True)
-    set_multi_subgraphs()
     init()
     if wide_deep_config.host_device_mix == 1:
         context.set_auto_parallel_context(

tests/st/model_zoo_tests/wide_and_deep/python_file_for_ci/train_and_test_multinpu_ci.py

@@ -21,7 +21,6 @@ from mindspore import Model, context
 from mindspore.train.callback import TimeMonitor
 from mindspore.context import ParallelMode
 from mindspore.communication.management import get_rank, get_group_size, init
-from mindspore.parallel import set_multi_subgraphs
 from mindspore.nn.wrap.cell_wrapper import VirtualDatasetCellTriple
 
 from src.wide_and_deep import PredictWithSigmoid, TrainStepWrap, NetWithLossClass, WideDeepModel
@@ -33,7 +32,6 @@ from src.config import WideDeepConfig
 sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 context.set_context(mode=context.GRAPH_MODE, device_target="Ascend", save_graphs=True)
 context.set_auto_parallel_context(parallel_mode=ParallelMode.SEMI_AUTO_PARALLEL, mirror_mean=True)
-set_multi_subgraphs()
 init()
 
 

tests/ut/python/parallel/test_auto_parallel_double_subgraphs.py

@@ -17,13 +17,13 @@ import numpy as np
 import mindspore as ms
 import mindspore.nn as nn
 from mindspore import Tensor, Parameter, ParameterTuple
-from mindspore import context
+from mindspore import context, Model
 from mindspore.common.api import _executor
 from mindspore.nn.optim import Adam, FTRL
 from mindspore.ops import composite as C
 from mindspore.ops import functional as F
 from mindspore.ops import operations as P
-from mindspore.parallel import set_multi_subgraphs
+from mindspore.parallel._cost_model_context import _set_multi_subgraphs
 from mindspore.parallel._utils import _reset_op_id as reset_op_id
 
 
@@ -103,7 +103,7 @@ class TrainStepWarp(nn.Cell):
 
 
 def test_double_subgraphs():
-    set_multi_subgraphs()
+    _set_multi_subgraphs()
     context.set_context(save_graphs=True)
     context.set_auto_parallel_context(device_num=8, global_rank=0)
     context.set_auto_parallel_context(parallel_mode="auto_parallel")
@@ -120,3 +120,50 @@ def test_double_subgraphs():
                            'Default/network-NetWithLoss/net-Net/Mul-op3': [[8, 1, 1, 1], [8, 1, 1, 1]],
                            'Default/network-NetWithLoss/ReduceSum-op4': [[8, 1, 1, 1]]}
     assert strategies == expected_strategies
+
+class DatasetLenet():
+    def __init__(self, predict, label, length=3):
+        self.predict = predict
+        self.label = label
+        self.index = 0
+        self.length = length
+
+    def __iter__(self):
+        return self
+
+    def __next__(self):
+        if self.index >= self.length:
+            raise StopIteration
+        self.index += 1
+        return self.predict
+
+    def reset(self):
+        self.index = 0
+
+    def get_dataset_size(self):
+        return 32
+
+    def get_repeat_count(self):
+        return 1
+
+    def create_tuple_iterator(self):
+        return self
+
+def test_double_subgraphs_train():
+    context.set_context(save_graphs=True)
+    context.set_auto_parallel_context(device_num=1, global_rank=0)
+    context.set_auto_parallel_context(parallel_mode="auto_parallel")
+    net = TrainStepWarp(NetWithLoss(Net()))
+
+    batch_ids = np.ones([8, 8, 8, 8]).astype(np.int32)
+    ds_train = DatasetLenet(Tensor(batch_ids), None)
+    model = Model(net)
+    model.train(1, ds_train, dataset_sink_mode=False)
+    strategies = _executor._get_strategy(net)
+    expected_strategies = {'Default/network-NetWithLoss/ReduceMean-op3': [[1, 1, 1, 1]],
+                           'Default/network-NetWithLoss/net-Net/ReLU-op4': [[1, 1, 1, 1]],
+                           'Default/network-NetWithLoss/net-Net/Mul-op5': [[1, 1, 1, 1], [1, 1, 1, 1]],
+                           'Default/network-NetWithLoss/net-Net/Mul-op6': [[1, 1, 1, 1], [1, 1, 1, 1]],
+                           'Default/network-NetWithLoss/net-Net/Cast-op1': [[1, 1, 1, 1]],
+                           'Default/network-NetWithLoss/ReduceSum-op7': [[1, 1, 1, 1]]}
+    assert strategies == expected_strategies