[autoparallel] update binary elementwise handler (#2451)

* [autoparallel] update binary elementwise handler

* polish

colossalai/auto_parallel/tensor_shard/node_handler/binary_elementwise_handler.py

@@ -32,20 +32,32 @@ class BinaryElementwiseHandler(MetaInfoNodeHandler):
                 return OperationDataType.ARG
 
         def _get_arg_value(idx):
+            non_tensor = False
             if isinstance(self.node.args[idx], Node):
                 meta_data = self.node.args[idx]._meta_data
+                # The meta_data of node type argument could also possibly be a non-tensor object.
+                if not isinstance(meta_data, torch.Tensor):
+                    assert isinstance(meta_data, (int, float))
+                    meta_data = torch.Tensor([meta_data]).to('meta')
+                    non_tensor = True
+
             else:
                 # this is in fact a real data like int 1
                 # but we can deem it as meta data
                 # as it won't affect the strategy generation
                 assert isinstance(self.node.args[idx], (int, float))
                 meta_data = torch.Tensor([self.node.args[idx]]).to('meta')
-            return meta_data
+                non_tensor = True
 
-        input_meta_data = _get_arg_value(0)
-        other_meta_data = _get_arg_value(1)
-        output_meta_data = self.node._meta_data
+            return meta_data, non_tensor
 
+        input_meta_data, non_tensor_input = _get_arg_value(0)
+        other_meta_data, non_tensor_other = _get_arg_value(1)
+        output_meta_data = self.node._meta_data
+        # we need record op_data with non-tensor data in this list,
+        # and filter the non-tensor op_data in post_process.
+        self.non_tensor_list = []
+        # assert False
         input_op_data = OperationData(name=str(self.node.args[0]),
                                       type=_get_op_data_type(input_meta_data),
                                       data=input_meta_data,
@@ -58,6 +70,10 @@ class BinaryElementwiseHandler(MetaInfoNodeHandler):
                                        type=OperationDataType.OUTPUT,
                                        data=output_meta_data,
                                        logical_shape=bcast_shape)
+        if non_tensor_input:
+            self.non_tensor_list.append(input_op_data)
+        if non_tensor_other:
+            self.non_tensor_list.append(other_op_data)
 
         mapping = {'input': input_op_data, 'other': other_op_data, 'output': output_op_data}
         return mapping
@@ -73,9 +89,10 @@ class BinaryElementwiseHandler(MetaInfoNodeHandler):
         op_data_mapping = self.get_operation_data_mapping()
 
         for op_name, op_data in op_data_mapping.items():
-            if not isinstance(op_data.data, torch.Tensor):
+            if op_data in self.non_tensor_list:
                 # remove the sharding spec if the op_data is not a tensor, e.g. torch.pow(tensor, 2)
                 strategy.sharding_specs.pop(op_data)
+
             else:
                 # convert the logical sharding spec to physical sharding spec if broadcast
                 # e.g. torch.rand(4, 4) + torch.rand(4)

tests/test_auto_parallel/test_tensor_shard/test_node_handler/test_binary_elementwise_handler.py

@@ -122,11 +122,19 @@ def check_binary_elementwise_handler_with_tensor(rank, op, other_dim, world_size
             assert input_sharding_spec.sharding_sequence[-1] == other_sharding_spec.sharding_sequence[-1]
 
 
-def check_binary_elementwise_handler_with_int(rank, op, other_dim, world_size, port):
-    disable_existing_loggers()
-    launch(config={}, rank=rank, world_size=world_size, host='localhost', port=port, backend='nccl')
+class BEOpModelWithNodeConst(nn.Module):
 
-    class BinaryElementwiseOpModel(nn.Module):
+    def __init__(self, op):
+        super().__init__()
+        self.op = op
+
+    def forward(self, x1):
+        const = x1.dim()
+        out = self.op(x1, const)
+        return out
+
+
+class BEOpModelWithIntConst(nn.Module):
 
     def __init__(self, op, const):
         super().__init__()
@@ -137,10 +145,18 @@ def check_binary_elementwise_handler_with_int(rank, op, other_dim, world_size, p
         out = self.op(x1, self.const)
         return out
 
+
+def check_binary_elementwise_handler_with_int(rank, op, other_dim, model_cls, world_size, port):
+    disable_existing_loggers()
+    launch(config={}, rank=rank, world_size=world_size, host='localhost', port=port, backend='nccl')
+
     physical_mesh_id = torch.arange(0, 4)
     mesh_shape = (2, 2)
     device_mesh = DeviceMesh(physical_mesh_id, mesh_shape, init_process_group=True)
-    model = BinaryElementwiseOpModel(op, other_dim).cuda()
+    if model_cls == BEOpModelWithNodeConst:
+        model = model_cls(op).cuda()
+    else:
+        model = model_cls(op, other_dim).cuda()
     x1 = torch.rand(4, 4).cuda()
     # the index of binary-elementwise node in computation graph
     node_index = 1
@@ -159,8 +175,13 @@ def check_binary_elementwise_handler_with_int(rank, op, other_dim, world_size, p
     tracer = ColoTracer()
     meta_args = {'x1': torch.rand(4, 4).to('meta')}
     graph = tracer.trace(model, meta_args=meta_args)
+    print(graph)
+    # assert False
     gm = ColoGraphModule(model, graph)
 
+    if model_cls == BEOpModelWithNodeConst:
+        op_node = list(graph.nodes)[2]
+    else:
         op_node = list(graph.nodes)[1]
     strategies_vector = StrategiesVector(op_node)
 
@@ -212,7 +233,7 @@ def check_binary_elementwise_handler_with_int(rank, op, other_dim, world_size, p
 @parameterize('other_dim', [1, 2])
 @pytest.mark.dist
 @rerun_if_address_is_in_use()
-def test_binary_elementwise_handler(op, other_dim):
+def test_binary_elementwise_handler_with_tensor(op, other_dim):
     world_size = 4
     run_func_tensor = partial(check_binary_elementwise_handler_with_tensor,
                               op=op,
@@ -220,8 +241,19 @@ def test_binary_elementwise_handler(op, other_dim):
                               world_size=world_size,
                               port=free_port())
     mp.spawn(run_func_tensor, nprocs=world_size)
+
+
+@run_on_environment_flag(name='AUTO_PARALLEL')
+@parameterize('op', [torch.add])
+@parameterize('other_dim', [1, 2])
+@parameterize('model_cls', [BEOpModelWithNodeConst, BEOpModelWithIntConst])
+@pytest.mark.dist
+@rerun_if_address_is_in_use()
+def test_binary_elementwise_handler_with_int(op, model_cls, other_dim):
+    world_size = 4
     run_func_int = partial(check_binary_elementwise_handler_with_int,
                            op=op,
+                           model_cls=model_cls,
                            other_dim=other_dim,
                            world_size=world_size,
                            port=free_port())
@@ -229,4 +261,5 @@ def test_binary_elementwise_handler(op, other_dim):
 
 
 if __name__ == '__main__':
-    test_binary_elementwise_handler()
+    test_binary_elementwise_handler_with_tensor()
+    test_binary_elementwise_handler_with_int()

tests/test_auto_parallel/test_tensor_shard/test_node_handler/utils.py

@@ -90,7 +90,8 @@ def numerical_test_for_node_strategy(model: torch.nn.Module,
         solver_options = SolverOptions()
         strategies_constructor = StrategiesConstructor(graph, device_mesh, solver_options)
         strategies_constructor.build_strategies_and_cost()
-        target_node = list(graph.nodes)[node_index]
+        target_node = [strategies_vector.node for strategies_vector in strategies_constructor.leaf_strategies
+                      ][node_index]
         if node_type == 'normal':
             solution_len = len(strategies_constructor.leaf_strategies)
             solution = [0] * solution_len
@@ -112,7 +113,7 @@ def numerical_test_for_node_strategy(model: torch.nn.Module,
             ret = solver.call_solver_serialized_args()
             solution = list(ret[0])
         gm, sharding_spec_dict, origin_spec_dict, comm_actions_dict = runtime_preparation_pass(
-            gm, solution, device_mesh)
+            gm, solution, device_mesh, strategies_constructor)
         gm = runtime_apply_pass(gm)
         gm.recompile()