Refactor code auto-gene for no_need_buffer (#41025)

* refactor code auto-gene for no_need_buffer

* fix some bug

* delete test code

paddle/fluid/eager/auto_code_generator/final_state_generator/codegen_utils.py

@@ -334,10 +334,10 @@ class FunctionGeneratorBase:
             self.inplace_map[key] = val
 
     def ParseNoNeedBuffer(self):
-        forward_api_contents = self.forward_api_contents
+        grad_api_contents = self.grad_api_contents
 
-        if 'no_need_buffer' in forward_api_contents.keys():
-            no_need_buffer_str = forward_api_contents['no_need_buffer']
+        if 'no_need_buffer' in grad_api_contents.keys():
+            no_need_buffer_str = grad_api_contents['no_need_buffer']
             for name in no_need_buffer_str.split(","):
                 name = name.strip()
                 name = RemoveSpecialSymbolsInName(name)

paddle/phi/api/lib/CMakeLists.txt

@@ -169,7 +169,7 @@ cc_library(api_custom_impl SRCS api_custom_impl.cc DEPS phi_tensor_raw phi kerne
 cc_library(sparse_api_custom_impl SRCS sparse_api_custom_impl.cc DEPS phi_tensor_raw phi kernel_dispatch api_gen_utils phi_data_transform)
 
 cc_library(phi_function_api SRCS ${api_source_file} DEPS phi_tensor_raw phi kernel_dispatch api_gen_utils phi_data_transform api_custom_impl)
-cc_library(phi_bw_function_api SRCS ${bw_api_source_file} DEPS phi_tensor_raw phi kernel_dispatch api_gen_utils backward_infermeta phi_data_transform phi_function_api api_custom_impl)
+cc_library(phi_bw_function_api SRCS ${bw_api_source_file} DEPS phi_tensor_raw phi kernel_dispatch api_gen_utils backward_infermeta phi_data_transform phi_function_api api_custom_impl global_utils)
 cc_library(sparse_api SRCS ${sparse_api_source_file} DEPS phi_tensor_raw phi kernel_dispatch api_gen_utils sparse_api_custom_impl)
 cc_library(sparse_bw_api SRCS ${sparse_bw_api_source_file} DEPS phi_tensor_raw phi kernel_dispatch api_gen_utils sparse_api sparse_api_custom_impl)
 cc_library(phi_dygraph_api SRCS ${dygraph_api_source_file} DEPS phi_tensor_raw phi kernel_dispatch api_gen_utils phi_data_transform phi_function_api sparse_api)

python/paddle/utils/code_gen/api_base.py

@@ -315,6 +315,31 @@ PADDLE_API {self.gene_return_type_code()} {self.get_api_func_name() + '_'}({self
 
         return api_declaration
 
+    # Backward API Override this method
+    def gene_kernel_backend_select(self):
+        backend_select_code = ""
+        if self.kernel['backend'] is not None:
+            if '>' in self.kernel['backend']:
+                vars_list = self.kernel['backend'].split('>')
+                assert len(
+                    vars_list
+                ) == 2, f"{self.api} api: The number of params to set backend with '>' only allows 2, but received {len(vars_list)}."
+                assert (vars_list[0].strip() in self.attrs['names']) and (self.attrs['attr_info'][vars_list[0].strip()][0] == 'Place'), \
+                    f"{self.api} api: When use '>' to set kernel backend, the first param should be a attribute with Place type."
+                backend_select_code = f"""
+  kernel_backend = ParseBackendWithInputOrder({vars_list[0].strip()}, {vars_list[1].strip()});
+"""
+
+            else:
+                backend_args = [
+                    ele.strip() for ele in self.kernel['backend'].split(',')
+                ]
+                backend_select_code = f"""
+  kernel_backend = ParseBackend({", ".join(backend_args)});
+"""
+
+        return backend_select_code
+
     def gene_kernel_select(self) -> str:
         api = self.api
         input_names = self.inputs['names']
@@ -345,26 +370,7 @@ PADDLE_API {self.gene_return_type_code()} {self.get_api_func_name() + '_'}({self
                 attr_data_type_count = attr_data_type_count + 1
 
         # preprocess kernel configures
-        kernel_select_code = ""
-        if kernel['backend'] is not None:
-            if '>' in kernel['backend']:
-                vars_list = kernel['backend'].split('>')
-                assert len(
-                    vars_list
-                ) == 2, f"{api} api: The number of params to set backend with '>' only allows 2, but received {len(vars_list)}."
-                assert (vars_list[0].strip() in attrs['names']) and (attrs['attr_info'][vars_list[0].strip()][0] == 'Place'), \
-                    f"{api} api: When use '>' to set kernel backend, the first param should be a attribute with Place type."
-                kernel_select_code = kernel_select_code + f"""
-  kernel_backend = ParseBackendWithInputOrder({vars_list[0].strip()}, {vars_list[1].strip()});
-"""
-
-            else:
-                args_str = ""
-                for ele in kernel['backend'].split(','):
-                    args_str = args_str + ele.strip() + ', '
-                kernel_select_code = kernel_select_code + f"""
-  kernel_backend = ParseBackend({args_str[:-2]});
-"""
+        kernel_select_code = self.gene_kernel_backend_select()
 
         if kernel['layout'] is not None:
             if '>' in kernel['layout']:

python/paddle/utils/code_gen/backward_api_gen.py

@@ -24,6 +24,7 @@ class BackwardAPI(BaseAPI):
     def __init__(self, backward_item_yaml):
         super(BackwardAPI, self).__init__(backward_item_yaml)
         self.check_args(backward_item_yaml['forward'])
+        self.no_need_buffer = self.parse_no_need_buffer(backward_item_yaml)
 
     def get_api_name(self, api_item_yaml):
         return api_item_yaml['backward_api']
@@ -41,6 +42,15 @@ class BackwardAPI(BaseAPI):
 
         return api, fw_inputs, fw_attrs, outputs
 
+    def parse_no_need_buffer(self, api_item_yaml):
+        no_need_buffer = []
+        if 'no_need_buffer' in api_item_yaml:
+            no_need_buffer = [
+                item.strip()
+                for item in api_item_yaml['no_need_buffer'].split(',')
+            ]
+        return no_need_buffer
+
     def check_args(self, forward_config):
         # parse the forward and backward config
         _, fw_inputs, fw_attrs, fw_outputs = self.parse_forward_config(
@@ -67,6 +77,19 @@ class BackwardAPI(BaseAPI):
             f"{self.api} : Output error: The number of outputs should be less then the number of inputs of forward api. \
              Please check the output of {self.api} in yaml."
 
+    def gene_kernel_backend_select(self):
+        all_no_need_buffer = True
+        for in_name in self.inputs['names']:
+            if in_name not in self.no_need_buffer:
+                all_no_need_buffer = False
+
+        if all_no_need_buffer:
+            return """
+  kernel_backend = ParseBackend(egr::Controller::Instance().GetExpectedPlace());
+"""
+        else:
+            return super().gene_kernel_backend_select()
+
     def get_return_type(self, out_type_list):
         return out_type_list[0] if len(
             out_type_list) == 1 else "std::vector<std::vector<Tensor>>"
@@ -154,6 +177,7 @@ def source_include(header_file_path):
 #include "paddle/phi/api/include/api.h"
 #include "paddle/phi/infermeta/backward.h"
 
+#include "paddle/fluid/eager/api/utils/global_utils.h"
 #include "paddle/fluid/platform/profiler/event_tracing.h"
 """
 

python/paddle/utils/code_gen/sparse_bw_api_gen.py

@@ -28,6 +28,9 @@ class SparseBackwardAPI(SparseAPI, BackwardAPI):
     def get_api_func_name(self):
         return self.api
 
+    def gene_kernel_backend_select(self):
+        return BackwardAPI.gene_kernel_backend_select(self)
+
     def get_return_type(self, out_type_list):
         return BackwardAPI.get_return_type(self, out_type_list)