[Feature] Support Paddle-OCR (#4396)

* init

* update code

* fix code style & disable thinking

* adapt for common_engine.update_mm_requests_chunk_size

* use 3d rope

* use flash_attn_unpadded

* opt siglip

* update to be compatible with the latest codebase

* fix typo

* optim OCR performance

* fix bug

* fix bug

* fix bug

* fix bug

* normlize name

* modify xpu rope

* revert logger

* fix bug

* fix bug

* fix bug

* support default_v1

* optim performance

* fix bug

---------

Co-authored-by: root <root@szzj-acg-tge1-fdda9.szzj.baidu.com>
Co-authored-by: zhangyue66 <zhangyue66@baidu.com>

fastdeploy/config.py

@@ -1435,11 +1435,14 @@ class FDConfig:
             self.model_config.model_format = "torch"
 
         # TODO
-        self.max_prefill_batch = int(os.getenv("MAX_PREFILL_NUM", "3"))
-        if current_platform.is_xpu():
-            self.max_prefill_batch = 1
-        if self.model_config is not None and self.model_config.enable_mm:
-            self.max_prefill_batch = 1  # TODO:当前多模prefill阶段只支持并行度为1,待优化
+        if not envs.FD_ENABLE_MAX_PREFILL:
+            self.max_prefill_batch = int(os.getenv("MAX_PREFILL_NUM", "3"))
+            if current_platform.is_xpu():
+                self.max_prefill_batch = 1
+            if self.model_config is not None and self.model_config.enable_mm:
+                self.max_prefill_batch = 1  # TODO:当前多模prefill阶段只支持并行度为1,待优化
+        else:
+            self.max_prefill_batch = self.scheduler_config.max_num_seqs
 
         num_ranks = self.parallel_config.tensor_parallel_size * self.parallel_config.data_parallel_size
         self.max_chips_per_node = 16 if current_platform.is_iluvatar() else 8