Cherry-pick some PRs from incubate/paddlenlp-fleety (#9253)

* support pp-sharding reshard (#9153)

* support best unbalaced pp scheduler (#9235)

* remove pp hack (#9189)

---------

Co-authored-by: Meiyim <chenxuyi@baidu.com>

paddlenlp/trainer/trainer.py

@@ -2270,13 +2270,6 @@ def training_pipeline_step(self, model: nn.Layer, inputs: Dict[str, Union[paddle
         self._pp_data_buffer = []
 
         model.train()
-        # hack pipeline-layers
-        # since the pipeline layer will check input is valid every iter.
-        # in same case,  for example, batch size warmup, we need dynamic change gradient_accumulation_steps to implement.
-        config_backup = model.micro_batch_size, model.accumulate_steps
-        model.micro_batch_size = self.args.per_device_train_batch_size
-        model.accumulate_steps = self.args.gradient_accumulation_steps
-
         if model._dp_comm_overlap or model._sharding_comm_overlap:
             for _, buffers in model._chunk_2_comm_buffers.items():
                 for buffer in buffers:
@@ -2291,8 +2284,6 @@ def training_pipeline_step(self, model: nn.Layer, inputs: Dict[str, Union[paddle
         with self.autocast_smart_context_manager():
             loss = model.forward_backward_pipeline(inputs, self.scaler if self.do_grad_scaling else None)
 
-        model.micro_batch_size, model.accumulate_steps = config_backup
-
         return loss.detach()
 
     def save_model(self, output_dir: Optional[str] = None, merge_tensor_parallel: Optional[bool] = False):

paddlenlp/trainer/training_args.py

@@ -1120,6 +1120,7 @@ def split_parallel_config(parallel_config):
                                 "enable_clear_every_step_cache",
                                 "enable_overlap_p2p_comm",
                                 "disable_batch_p2p_comm",
+                                "best_unbalanced_scheduler",
                             ]:
                                 raise ValueError(
                                     f"Found unknown pipeline mode config {x}, accpet config is disable_p2p_cache_shape, disable_partial_send_recv."
@@ -1158,6 +1159,7 @@ def split_parallel_config(parallel_config):
                         "overlap_p2p_comm": "enable_overlap_p2p_comm" in pipeline_parallel_config,
                         "clear_every_step_cache": "enable_clear_every_step_cache" in pipeline_parallel_config,
                         "use_batch_p2p_comm": "disable_batch_p2p_comm" not in pipeline_parallel_config,
+                        "best_unbalanced_scheduler": "best_unbalanced_scheduler" in pipeline_parallel_config,
                     }
                     if dygraph_pp_configs["dp_comm_overlap"]:
                         raise ValueError("overlap has accuracy issue")  # TODO: fix `overalap` + `delay_scale` issue

paddlenlp/trainer/utils/reshard/pp_reshard.py

@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-
 from collections import OrderedDict
 
 from paddle.distributed.fleet.model import PipelineParallel
@@ -46,6 +45,25 @@ def get_index_layer_func():
     return _GLOBAL_INDEX_LAYER_FUNC
 
 
+_GLOBAL_SNAME_TO_TNAME_FUNC = None
+
+
+def register_sname_to_tname_func(func):
+    global _GLOBAL_SNAME_TO_TNAME_FUNC
+    _GLOBAL_SNAME_TO_TNAME_FUNC = func
+
+
+def has_register_sname_to_tname_func():
+    global _GLOBAL_SNAME_TO_TNAME_FUNC
+    return _GLOBAL_SNAME_TO_TNAME_FUNC is not None
+
+
+def get_sname_to_tname_func():
+    global _GLOBAL_SNAME_TO_TNAME_FUNC
+    assert _GLOBAL_SNAME_TO_TNAME_FUNC is not None, "sname to tname func is not registered yet"
+    return _GLOBAL_SNAME_TO_TNAME_FUNC
+
+
 class LayerNameScope:
     """
     layer name scope for a layer, layer name of the same kind of layer will be named consecutively
@@ -206,6 +224,7 @@ def __init__(self):
         self._segments = OrderedDict()
         self._layer_to_segment = OrderedDict()
         self._param_to_tname = OrderedDict()
+        self._wname_to_rname = OrderedDict()
 
     def add_segment(self, start_index, end_index):
         segment = PipeLineSegment(start_index, end_index)
@@ -218,19 +237,24 @@ def add_layer(self, layer_index, layer_name, param_names):
         segment = self._layer_to_segment[layer_index]
         segment.add_layer(layer_name, param_names)
 
-    def build_name_mapping(self):
+    def build_name_mapping(self, sname_to_tname=None):
         for (k, segment) in self._segments.items():
             for (i, layer) in segment.layers.items():
                 for param in layer.params.items():
                     (param_name, tensor_name) = param
                     # map to a new name
                     n_name = self._rename_mgr.get_new_param_name(layer.name, tensor_name)
+                    if sname_to_tname is not None:
+                        if param_name in sname_to_tname.keys():
+                            self._wname_to_rname[param_name] = sname_to_tname[param_name]
                     # logger.info(f"{param_name} {tensor_name}=>{n_name}")
                     self._param_to_tname[param_name] = (tensor_name, n_name)
 
     def map_name(self, param_name, t_name):
         assert param_name in self._param_to_tname
         tensor_name, n_name = self._param_to_tname[param_name]
+        if param_name in self._wname_to_rname:
+            n_name = self._wname_to_rname[param_name]
         assert tensor_name == t_name
         return n_name
 
@@ -261,6 +285,11 @@ def __init__(
         self._index_layers()
 
         stage_segments = self._segment()
+        if has_register_sname_to_tname_func():
+            self._sname_to_tname = get_sname_to_tname_func()(pp_model)
+        else:
+            self._sname_to_tname = None
+
         for (i, stage_seg) in enumerate(stage_segments):
             pipe_stage = PipeLineStage()
             self._stages.append(pipe_stage)
@@ -275,7 +304,7 @@ def __init__(
                     self._layer_name_to_stage[layer_name] = i
 
         for stage in self._stages:
-            stage.build_name_mapping()
+            stage.build_name_mapping(self._sname_to_tname)
 
     def _index_layers(self):
         for layer_name in self._param_names_by_layer.keys():