[shardformer] made tensor parallelism configurable (#4144)

* [shardformer] made tensor parallelism configurable

* polish code

tests/test_shardformer/test_model/test_shard_llama.py

@@ -5,7 +5,14 @@ import torch
 
 import colossalai
 from colossalai.logging import disable_existing_loggers
-from colossalai.testing import assert_hf_output_close, clear_cache_before_run, rerun_if_address_is_in_use, spawn
+from colossalai.tensor.d_tensor.api import is_customized_distributed_tensor, is_distributed_tensor
+from colossalai.testing import (
+    assert_hf_output_close,
+    clear_cache_before_run,
+    parameterize,
+    rerun_if_address_is_in_use,
+    spawn,
+)
 from tests.kit.model_zoo import model_zoo
 from tests.test_shardformer.test_model._utils import build_model, run_forward
 
@@ -37,33 +44,46 @@ def check_forward_backward(org_model, sharded_model, data_gen_fn, output_transfo
     # check attention grad
     org_grad = llama_model.layers[0].self_attn.q_proj.weight.grad
     shard_grad = shard_llama_model.layers[0].self_attn.q_proj.weight.grad
-    shard_grad_list = [torch.zeros([*shard_grad.shape]).to('cuda') for _ in range(4)]
-    shard_grad = torch.distributed.all_gather(shard_grad_list, shard_grad)
-    all_shard_grad = torch.cat(shard_grad_list, dim=0)
+    shard_weight = shard_llama_model.layers[0].self_attn.q_proj.weight
+
+    if is_distributed_tensor(shard_weight) or is_customized_distributed_tensor(shard_weight):
+        shard_grad_list = [torch.zeros([*shard_grad.shape]).to('cuda') for _ in range(4)]
+        shard_grad = torch.distributed.all_gather(shard_grad_list, shard_grad)
+        all_shard_grad = torch.cat(shard_grad_list, dim=0)
+    else:
+        all_shard_grad = shard_grad
     assert torch.allclose(org_grad, all_shard_grad,
                           atol=1e-5), f"shard model grad is not equal to orgin model grad\n{org_grad}\n{shard_grad}"
 
     # check embedding grad
     org_grad = llama_model.embed_tokens.weight.grad
     shard_grad = shard_llama_model.embed_tokens.weight.grad
-    shard_grad_list = [torch.zeros([*shard_grad.shape]).to('cuda') for _ in range(4)]
-    shard_grad = torch.distributed.all_gather(shard_grad_list, shard_grad)
-    all_shard_grad = torch.cat(shard_grad_list, dim=0)
+    shard_weight = shard_llama_model.embed_tokens.weight
+
+    if is_distributed_tensor(shard_weight) or is_customized_distributed_tensor(shard_weight):
+        shard_grad_list = [torch.zeros([*shard_grad.shape]).to('cuda') for _ in range(4)]
+        shard_grad = torch.distributed.all_gather(shard_grad_list, shard_grad)
+        all_shard_grad = torch.cat(shard_grad_list, dim=0)
+    else:
+        all_shard_grad = shard_grad
     assert torch.allclose(org_grad, all_shard_grad,
                           atol=1e-5), f"shard model grad is not equal to orgin model grad\n{org_grad}\n{shard_grad}"
 
 
+@parameterize('enable_fused_normalization', [True, False])
+@parameterize('enable_tensor_parallelism', [True, False])
+def run_gpt2_llama(enable_fused_normalization, enable_tensor_parallelism):
+    sub_model_zoo = model_zoo.get_sub_registry('transformers_llama')
+    for name, (model_fn, data_gen_fn, output_transform_fn, loss_fn, _) in sub_model_zoo.items():
+        org_model, sharded_model = build_model(model_fn, enable_fused_normalization, enable_tensor_parallelism)
+        check_forward_backward(org_model, sharded_model, data_gen_fn, output_transform_fn, loss_fn)
+    torch.cuda.empty_cache()
+
+
 def check_llama(rank, world_size, port):
     disable_existing_loggers()
     colossalai.launch(config={}, rank=rank, world_size=world_size, host='localhost', port=port, backend='nccl')
-
-    sub_model_zoo = model_zoo.get_sub_registry('transformers_llama')
-
-    for name, (model_fn, data_gen_fn, output_transform_fn, loss_fn, _) in sub_model_zoo.items():
-        org_model, sharded_model = build_model(model_fn)
-        check_forward_backward(org_model, sharded_model, data_gen_fn, output_transform_fn, loss_fn)
-
-    torch.cuda.empty_cache()
+    run_gpt2_llama()
 
 
 @pytest.mark.dist