[autoparallel] add layer norm handler v2 (#1671)

* [autoparallel] add layer norm handler v2

* polish code

* polish code

tests/test_auto_parallel/test_node_handler/test_batch_norm_handler_v2.py

@@ -59,7 +59,6 @@ def test_bn_module_handler():
     assert mapping['output'].type == OperationDataType.OUTPUT
 
     strategies_vector = handler.register_strategy()
-    #[ 'S01R = S01R x R WITH SYNC_BN']
     strategy_name_list = [val.name for val in strategies_vector]
 
     # RS = RS x S

tests/test_auto_parallel/test_node_handler/test_layer_norm_handler_v2.py

@@ -0,0 +1,76 @@
+from colossalai.fx.tracer.meta_patch.patched_module import linear
+import torch
+import torch.nn as nn
+from colossalai.fx import ColoTracer, ColoGraphModule
+from colossalai.auto_parallel.solver.op_handler.layer_norm_handler_v2 import LayerNormModuleHandler
+from colossalai.auto_parallel.solver.sharding_strategy import OperationData, OperationDataType, StrategiesVector
+from colossalai.device.device_mesh import DeviceMesh
+
+
+def test_ln_module_handler():
+    model = nn.Sequential(nn.LayerNorm(16).to('meta'))
+    tracer = ColoTracer()
+    # graph():
+    #     %input_1 : torch.Tensor [#users=1] = placeholder[target=input]
+    #     %_0 : [#users=1] = call_module[target=0](args = (%input_1,), kwargs = {})
+    #     return _0
+    graph = tracer.trace(model, meta_args={"input": torch.rand(4, 16).to('meta')})
+    gm = ColoGraphModule(model, graph)
+    physical_mesh_id = torch.arange(0, 4)
+
+    mesh_shape = (2, 2)
+    device_mesh = DeviceMesh(physical_mesh_id, mesh_shape)
+    ln_mod_node = list(graph.nodes)[1]
+    strategies_vector = StrategiesVector(ln_mod_node)
+
+    # build handler
+    handler = LayerNormModuleHandler(node=ln_mod_node, device_mesh=device_mesh, strategies_vector=strategies_vector)
+
+    # check operation data mapping
+    mapping = handler.get_operation_data_mapping()
+
+    for name, op_data in mapping.items():
+        op_data: OperationData
+        # make sure they have valid values
+        assert op_data.logical_shape is not None
+        assert op_data.data is not None
+
+    assert mapping['input'].name == "input_1"
+    assert mapping['input'].data.is_meta
+    assert mapping['input'].data.shape == torch.Size([4, 16])
+    assert mapping['input'].type == OperationDataType.ARG
+    assert mapping['input'].logical_shape == torch.Size([4, 16])
+
+    assert mapping['other'].name == "weight"
+    assert mapping['other'].data.is_meta
+    assert mapping['other'].data.shape == torch.Size([16])
+    assert mapping['other'].type == OperationDataType.PARAM
+    assert mapping['other'].logical_shape == torch.Size([16])
+
+    assert mapping['bias'].name == "bias"
+    assert mapping['bias'].data.is_meta
+    assert mapping['bias'].data.shape == torch.Size([16])
+    assert mapping['bias'].type == OperationDataType.PARAM
+    assert mapping['bias'].logical_shape == torch.Size([16])
+
+    assert mapping['output'].name == "_0"
+    assert mapping['output'].data.is_meta
+    assert mapping['output'].data.shape == torch.Size([4, 16])
+    assert mapping['output'].type == OperationDataType.OUTPUT
+
+    strategies_vector = handler.register_strategy()
+    strategy_name_list = [val.name for val in strategies_vector]
+
+    # SR = SR x R
+    assert '[S0, R] = [S0, R] x [R]' in strategy_name_list
+    assert '[S1, R] = [S1, R] x [R]' in strategy_name_list
+
+    # RR = RR x R
+    assert 'RR = RR x R' in strategy_name_list
+
+    # S01R = S01R x R
+    assert '[S01, R] = [S01, R] x [R]' in strategy_name_list
+
+
+if __name__ == '__main__':
+    test_ln_module_handler()