[Unified Checkpoint] Fix expert parallel

paddlenlp/trainer/unified_checkpoint/sharding_split_param_utils.py

@@ -305,7 +305,11 @@
                     )
                 )
         if has_master_weights:
-            key_name = "_".join([static_name, FP32_MASTER, key_name[1]])
+            if model_state_dict[key_name[0]].dtype != paddle.float32:
+                key_name = "_".join([static_name, FP32_MASTER, key_name[1]])
+            else:
+                # for moe gate with float32 dtype.
+                key_name = "_".join([static_name, key_name[1]])
         else:
             key_name = "_".join([static_name, key_name[1]])
 

paddlenlp/trainer/unified_checkpoint/unified_checkpoint.py

@@ -516,6 +516,15 @@
 
     config_to_save = copy.deepcopy(model_to_save.config)
 
+    if args.use_expert_parallel:
+        # ignore saving `no_sync=False` tensors when using expert_parallel under dp_rank > 0.
+        hcg = fleet.get_hybrid_communicate_group()
+        dp_group = hcg.get_data_parallel_group()
+        dp_rank = dp_group.rank if dp_group.nranks > 1 else 0
+        for key in list(state_dict.keys()):
+            if dp_rank > 0 and not getattr(state_dict[key], "no_sync", False):
+                state_dict.pop(key)
+
     if config_to_save.tensor_parallel_degree > 1:
         if isinstance(model_to_save, LoRAModel) or isinstance(model_to_save, PrefixModelForCausalLM):
             tp_actions = model_to_save._get_tensor_parallel_convert_actions(
@@ -622,8 +631,25 @@
         filter_master_keys = filter_params(model, master_weights, args, is_optimizer=True)
     filter_optim_keys = filter_params(model, optim_state_dict, args, is_optimizer=True)
 
-    tp_group = fleet.get_hybrid_communicate_group().get_model_parallel_group()
+    hcg = fleet.get_hybrid_communicate_group()
+    tp_group = hcg.get_model_parallel_group()
+    dp_group = hcg.get_data_parallel_group()
     tp_size = tp_group.nranks
+    dp_rank = dp_group.rank if dp_group.nranks > 1 else 0
+
+    if args.use_expert_parallel:
+        no_sync_kname = []
+        for k, v in state_dict.items():
+            if getattr(state_dict[k], "no_sync", False):
+                no_sync_kname.append(k)
+        for key in list(optim_state_dict.keys()):
+            model_key = key.split("/")[0]
+            if dp_rank > 0 and model_key not in no_sync_kname:
+                optim_state_dict.pop(key)
+        if master_weights is not None:
+            for key in list(master_weights.keys()):
+                if dp_rank > 0 and key not in no_sync_kname:
+                    master_weights.pop(key)
 
     if tp_size > 1:
         # get tp_actions
@@ -643,7 +669,6 @@
             optim_state_dict,
             tp_actions,
             filter_optim_keys,
-            state_dict if args.use_expert_parallel else None,
         )
         paddle.device.cuda.empty_cache()
 
@@ -653,7 +678,6 @@
                 master_weights,
                 tp_actions,
                 filter_master_keys,
-                state_dict if args.use_expert_parallel else None,
             )
             paddle.device.cuda.empty_cache()
 

paddlenlp/trainer/unified_checkpoint/utils.py

@@ -354,9 +354,7 @@
     """
     hcg = fleet.get_hybrid_communicate_group()
     tp_group = hcg.get_model_parallel_group()
-    dp_group = hcg.get_data_parallel_group()
     tp_rank = tp_group.rank
-    dp_rank = dp_group.rank if dp_group.nranks > 1 else 0
 
     # filter actions for pipeline mode
     if hcg.get_pipe_parallel_group().nranks > 1:
@@ -373,10 +371,9 @@
             if i > len(filter_keys) - 1:
                 continue
             key = filter_keys[i]
-            tensor = state_dict[key]
-            # When using expert parallel, there's no need to save tensors with `no_sync=False` when dp_rank > 0.
-            if dp_rank > 0 and not getattr(tensor, "no_sync", False):
+            if key not in state_dict:
                 continue
+            tensor = state_dict[key]
             if key in tp_actions:
                 # Get tensor size
                 tensor_bytes = tensor.numel().item() * dtype_byte_size(tensor.dtype) * tp_group.nranks
@@ -405,21 +402,13 @@
     return state_dict_to_save
 
 
-def merge_tensor_parallel_for_optimizer(state_dict, tp_actions, all_filter_keys, model_state_dict=None):
+def merge_tensor_parallel_for_optimizer(state_dict, tp_actions, all_filter_keys):
     """
     Merge tensor parallel according to tp_actions, used for master_weight and optimizer weight.
     """
     hcg = fleet.get_hybrid_communicate_group()
     tp_group = hcg.get_model_parallel_group()
-    dp_group = hcg.get_data_parallel_group()
     tp_rank = tp_group.rank
-    dp_rank = dp_group.rank if dp_group.nranks > 1 else 0
-
-    no_sync_kname = []
-    if model_state_dict is not None:
-        for k, v in model_state_dict.items():
-            if getattr(v, "no_sync", False):
-                no_sync_kname.append(k)
 
     state_dict_to_save = {}
     max_key_len = max([len(_) for _ in all_filter_keys])
@@ -430,10 +419,9 @@
                 continue
             # get base model key
             model_key = filter_keys[i].split("/")[0]
-            tensor = state_dict[filter_keys[i]]
-            # When using expert parallel, there's no need to save tensors with `no_sync=False` when dp_rank > 0.
-            if dp_rank > 0 and model_key not in no_sync_kname:
+            if filter_keys[i] not in state_dict:
                 continue
+            tensor = state_dict[filter_keys[i]]
             if model_key in tp_actions:
                 # for example: beta1, beta2
                 if tensor.numel().item() == 1:

tests/trainer/test_moe_unified_checkpoint.py

@@ -0,0 +1,175 @@
+# Copyright (c) 2024 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+
+import numpy as np
+import pytest
+
+from paddlenlp.utils.downloader import get_path_from_url_with_filelock
+from tests.parallel_launch import TestMultipleGpus
+from tests.testing_utils import require_paddle_at_least_8_gpu, skip_for_none_ce_case
+from tests.trainer.test_unified_checkpoint import remove_ckpt, remove_logs
+from tests.trainer.trainer_utils import get_pretrain_arguments
+
+environment_variables = {
+    "NCCL_ALGO": "Tree",
+    "NVIDIA_TF32_OVERRIDE": "0",
+    "NCCL_IB_TIMEOUT": "22",
+    "NCCL_DEBUG": "INFO",
+    "FLAGS_embedding_deterministic": "1",
+    "FLAGS_cudnn_deterministic": "1",
+    "Flags_mp_aysnc_allreduce": "1",
+    "Flags_skip_mp_c_identity": "1",
+    "FLAGS_shard_norm_align_dp": "0",
+    "FLAGS_shard_use_reduce": "1",
+    "test_ci_no_save_model": "1",
+}
+
+moe_arguments = {
+    "model_name_or_path": "./tests/trainer/unified-ckpt-qwen2moe",
+    "dataset_name_or_path": "./unified_checkpoint/peft_input/data/",
+    "output_dir": "./unified_checkpoint/checkpoints/qwen2moe_sft_ckpts",
+    "per_device_train_batch_size": 1,
+    "gradient_accumulation_steps": 8,
+    "per_device_eval_batch_size": 8,
+    "eval_accumulation_steps": 16,
+    "learning_rate": 3e-04,
+    "max_steps": 10,
+    "save_steps": 6,
+    "warmup_steps": 30,
+    "logging_steps": 1,
+    "evaluation_strategy": "no",
+    "save_strategy": "steps",
+    "src_length": 1024,
+    "max_length": 2048,
+    "bf16": "true",
+    "fp16_opt_level": "O2",
+    "do_train": "true",
+    "do_eval": "false",
+    "disable_tqdm": "true",
+    "eval_with_do_generation": "false",
+    "recompute": "true",
+    "recompute_granularity": "full",
+    "save_total_limit": 1,
+    "tensor_parallel_degree": 1,
+    "pipeline_parallel_degree": 1,
+    "sharding": "",
+    "lora": "false",
+    "zero_padding": "false",
+    "use_flash_attention": "false",
+    "unified_checkpoint": 1,
+    "continue_training": 0,
+    "sequence_parallel": 0,
+}
+
+
+def check_acc(log_dir="log"):
+    file_path = os.path.join(log_dir, "workerlog.n0.c0")
+    cmd = "grep -a 'global_step: 10' " + file_path + " | awk -F ','  '{print $2}' | awk  '{print $6}'"
+    import subprocess
+
+    res = subprocess.check_output(cmd, shell=True, text=True)
+    res = [float(x) for x in res.split()]
+
+    return res
+
+
+seed = 2024
+
+rng = np.random.default_rng(seed=seed)
+
+
+@pytest.mark.xdist_group(name="UC")
+class TestUnifiedCheckpointBase(TestMultipleGpus):
+    @classmethod
+    @property
+    def __test__(cls):
+        return cls != TestUnifiedCheckpointBase
+
+    def setUp(self):
+        """
+        1. update runfirst and rerun to run defined different config
+        2. update need_allclose to True if you want to check the result
+        3. update rtol to the relative value you want to check
+        """
+
+        self.configs = get_pretrain_arguments(moe_arguments)
+        os.environ.update(environment_variables)
+
+        file_ = "https://bj.bcebos.com/paddlenlp/datasets/examples/AdvertiseGen.tar.gz"
+        input_dir = "unified_checkpoint/peft_input/"
+        os.makedirs(input_dir, exist_ok=True)
+        file_path = os.path.join(input_dir, "AdvertiseGen.tar.gz")
+        if not os.path.exists(file_path):
+            get_path_from_url_with_filelock(file_, root_dir=input_dir)
+
+        self.need_allclose = True
+        self.rtol = 1e-7
+
+        self.run_file = "llm/run_finetune.py"
+
+    def runfirst(self, train_args):
+        self.run_n1c8(self.run_file, **train_args)
+
+    def rerun(self, train_args):
+        self.run_n1c8(self.run_file, **train_args)
+
+    @require_paddle_at_least_8_gpu
+    def testTP4DP2(self):
+        remove_logs()
+        remove_ckpt(moe_arguments["output_dir"])
+
+        train_args = self.configs["TP4DP2"]
+        self.runfirst(train_args)
+        self.rerun(train_args)
+
+        if self.need_allclose:
+            res = check_acc()
+            assert len(res) == 2
+            np.testing.assert_allclose(res[0], res[1], self.rtol)
+
+    @require_paddle_at_least_8_gpu
+    def testTP2Sharding4(self):
+        remove_logs()
+        remove_ckpt(moe_arguments["output_dir"])
+
+        train_args = self.configs["TP2Sharding4"]
+        self.runfirst(train_args)
+        self.rerun(train_args)
+
+        if self.need_allclose:
+            res = check_acc()
+            assert len(res) == 2
+            np.testing.assert_allclose(res[0], res[1], self.rtol)
+
+
+@pytest.mark.xdist_group(name="UC")
+class TestUnifiedCheckpointFull(TestUnifiedCheckpointBase):
+    @skip_for_none_ce_case
+    @require_paddle_at_least_8_gpu
+    def testTP2Sharding4V2(self):
+        remove_logs()
+        remove_ckpt(moe_arguments["output_dir"])
+
+        train_args = self.configs["TP2Sharding4"]
+        train_args.update({"sharding_parallel_config": "split_param"})
+        train_args.update({"amp_master_grad": True})
+        self.runfirst(train_args)
+        self.rerun(train_args)
+
+        if self.need_allclose:
+            res = check_acc()
+            assert len(res) == 2
+            np.testing.assert_allclose(res[0], res[1], self.rtol)

tests/trainer/trainer_utils.py

@@ -141,6 +141,14 @@ def get_pretrain_arguments(pretrain_arguments):
     train_args["gradient_accumulation_steps"] = train_args["gradient_accumulation_steps"] // 8
     configs["DP8"] = train_args
 
+    train_args = copy.deepcopy(pretrain_arguments)
+    train_args["tensor_parallel_degree"] = 2
+    train_args["pipeline_parallel_degree"] = 1
+    train_args["sharding_parallel_degree"] = 2
+    train_args["sharding"] = "stage1"
+    train_args["gradient_accumulation_steps"] = train_args["gradient_accumulation_steps"] // 4
+    configs["TP2DP2Sharding2"] = train_args
+
     return configs
 
 

tests/trainer/unified-ckpt-qwen2moe/config.json

@@ -0,0 +1,34 @@
+{
+  "architectures": [
+    "Qwen2MoeForCausalLM"
+  ],
+  "attention_dropout": 0.0,
+  "bos_token_id": 151643,
+  "decoder_sparse_step": 1,
+  "eos_token_id": 151643,
+  "hidden_act": "silu",
+  "hidden_size": 3584,
+  "initializer_range": 0.02,
+  "intermediate_size": 18944,
+  "max_position_embeddings": 131072,
+  "max_window_layers": 28,
+  "model_type": "qwen2_moe",
+  "moe_intermediate_size": 2560,
+  "norm_topk_prob": false,
+  "num_attention_heads": 28,
+  "num_experts": 8,
+  "num_experts_per_tok": 2,
+  "num_hidden_layers": 8,
+  "num_key_value_heads": 4,
+  "output_router_logits": false,
+  "rms_norm_eps": 1e-06,
+  "rope_theta": 1000000.0,
+  "router_aux_loss_coef": 0.001,
+  "shared_expert_intermediate_size": 20480,
+  "sliding_window": 131072,
+  "tie_word_embeddings": false,
+  "dtype": "bfloat16",
+  "use_cache": true,
+  "use_sliding_window": false,
+  "vocab_size": 151936
+}

tests/trainer/unified-ckpt-qwen2moe/generation_config.json

@@ -0,0 +1,8 @@
+{
+  "bos_token_id": 151643,
+  "pad_token_id": 151643,
+  "eos_token_id": [
+    151645,
+    151643
+  ]
+}