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2026-07-13 12:40:42 +08:00

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Python

# Copyright (c) 2018 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.
from paddle import _C_ops, _legacy_C_ops
from paddle.base import core, framework
name_mapping = {
"graph_send_recv": {
"final_op_name": "graph_send_recv",
"x": "X",
"src_index": "Src_index",
"dst_index": "Dst_index",
"out": "Out",
"dst_count": "Dst_count",
},
"matmul_v2": {
"final_op_name": "matmul",
"transpose_x": "trans_x",
"transpose_y": "trans_y",
"x": "X",
"y": "Y",
"out": "Out",
},
# "elementwise_add": {
# "final_op_name": "add",
# "x": "X",
# "y": "Y",
# },
"trunc": {
"final_op_name": "trunc",
"x": "X",
"out": "Out",
},
# "pool2d": {
# "final_op_name": "pool2d",
# "x": "X",
# "kernel_size": "ksize",
# "out": "Out",
# },
"abs": {
"final_op_name": "abs",
"x": "X",
"out": "Out",
},
"digamma": {
"final_op_name": "digamma",
"x": "X",
"out": "Out",
},
"diagonal": {
"final_op_name": "diagonal",
"x": "Input",
"offset": "offset",
"axis1": "axis1",
"axis2": "axis2",
"out": "Out",
},
"roi_align": {
"final_op_name": "roi_align",
"x": "X",
"boxes": "ROIs",
"boxes_num": "RoisNum",
"pooled_height": "pooled_height",
"pooled_width": "pooled_width",
"spatial_scale": "spatial_scale",
"sampling_ratio": "sampling_ratio",
"aligned": "aligned",
},
# "one_hot": {
# "final_op_name": "one_hot",
# "x": "X",
# "num_class": "depth",
# "out": "Out",
# }
}
core_ops_args_info = _legacy_C_ops.get_core_ops_args_info()
core_ops_args_type_info = _legacy_C_ops.get_core_ops_args_type_info()
core_ops_returns_info = _legacy_C_ops.get_core_ops_returns_info()
class Tracer(core.Tracer):
"""
:api_attr: imperative
Tracer is used to execute and record the operators executed, to construct the
computation graph in dygraph model. Tracer has two mode, :code:`train_mode`
and :code:`eval_mode`. In :code:`train_mode`, Tracer would add backward network
automatically and perform AutoGrad by method :code:`loss.backward()`.
In :code:`eval_mode`, Tracer would not add backward network.
This is a low level API, users don't need to use it directly.
"""
def __init__(self):
super().__init__()
self._train_mode = True
def eager_legacy_trace_op(
self,
op_type,
inputs,
outputs,
attrs,
stop_gradient=False,
inplace_map=None,
):
function_ptr = _legacy_C_ops.__dict__[op_type]
op_args = core_ops_args_info[op_type]
op_args_type = core_ops_args_type_info[op_type]
op_returns = core_ops_returns_info[op_type]
arg_list = []
for i in range(len(op_args)):
# initialized with None
arg_to_append = None
arg_name = op_args[i]
arg_type = op_args_type[i]
if arg_name in inputs.keys():
arg_to_append = inputs[arg_name]
elif arg_name in outputs.keys():
arg_to_append = outputs[arg_name]
else:
if "Num" in arg_name[-3:]:
# Remove "Num" suffix to get out_name
out_name = arg_name[:-3]
assert out_name in outputs.keys()
num_outs = len(outputs[out_name])
arg_to_append = num_outs
# NOTE(dev): For MasterParam/MasterParamOut in optimizer op
elif "Var" in arg_name[-3:]:
out_name = arg_name[:-3]
print(out_name)
if out_name in outputs.keys():
arg_to_append = outputs[out_name]
elif out_name in inputs.keys():
arg_to_append = inputs[out_name]
if arg_to_append is None:
arg_list.append(arg_to_append)
elif arg_type == "tensor":
if isinstance(arg_to_append, list):
arg_list.append(arg_to_append[0])
else:
arg_list.append(arg_to_append)
elif arg_type == "list":
assert isinstance(arg_to_append, list)
arg_list.append(arg_to_append)
else:
assert arg_type == "int"
assert isinstance(arg_to_append, int)
arg_list.append(arg_to_append)
attrs_list = []
for k, v in attrs.items():
attrs_list.append(k)
attrs_list.append(v)
returns = function_ptr(*arg_list, *attrs_list)
if op_type == 'load_combine':
assert len(outputs.keys()) == 1
key = next(iter(outputs.keys()))
for j in range(len(returns)):
returns[j]._share_underline_tensor_to(outputs[key][j])
return
if isinstance(returns, tuple):
for i in range(len(op_returns)):
retname = op_returns[i]
if retname in outputs.keys():
# Replaced outputs by function returns
if isinstance(returns[i], list):
for j in range(len(returns[i])):
outputs[retname][j].reconstruct_from_(
returns[i][j], False
)
else:
if isinstance(outputs[retname], list):
outputs[retname][0].reconstruct_from_(
returns[i], False
)
else:
outputs[retname].reconstruct_from_(
returns[i], False
)
elif isinstance(returns, list):
assert len(outputs.keys()) == 1
key = next(iter(outputs.keys()))
for j in range(len(returns)):
outputs[key][j].reconstruct_from_(returns[j], False)
else:
assert len(outputs.keys()) == 1
key = next(iter(outputs.keys()))
if isinstance(outputs[key], list):
outputs[key][0].reconstruct_from_(returns, False)
else:
outputs[key].reconstruct_from_(returns, False)
def eager_trace_op(
self,
op_type,
inputs,
outputs,
attrs,
stop_gradient=False,
inplace_map=None,
):
assert op_type in name_mapping.keys()
op_type = name_mapping[op_type]["final_op_name"]
function_ptr = _C_ops.__dict__[op_type]
core_ops_args_info = _C_ops.get_core_ops_args_info()
core_ops_args_type_info = _C_ops.get_core_ops_args_type_info()
core_ops_returns_info = _C_ops.get_core_ops_returns_info()
op_args = core_ops_args_info[op_type]
op_args_type = core_ops_args_type_info[op_type]
op_returns = core_ops_returns_info[op_type]
arg_list = []
for i in range(len(op_args)):
eager_arg_name = op_args[i]
arg_type = op_args_type[i]
assert eager_arg_name in name_mapping[op_type].keys()
arg_name = name_mapping[op_type][eager_arg_name]
if arg_name in inputs.keys():
arg_to_append = inputs[arg_name]
elif arg_name in outputs.keys():
arg_to_append = outputs[arg_name]
elif arg_name in attrs.keys() and arg_type == "":
arg_to_append = attrs[arg_name]
else:
# dispensable
arg_to_append = None
if arg_type == "":
# attribute
arg_list.append(arg_to_append)
elif arg_type == "tensor":
if isinstance(arg_to_append, list):
arg_list.append(arg_to_append[0])
else:
arg_list.append(arg_to_append)
elif arg_type == "list":
assert isinstance(arg_to_append, list)
arg_list.append(arg_to_append)
else:
assert arg_to_append is None
arg_list.append(arg_to_append)
returns = function_ptr(*arg_list)
if isinstance(returns, tuple):
for i in range(len(op_returns)):
eager_retname = op_returns[i]
assert eager_retname in name_mapping[op_type].keys()
retname = name_mapping[op_type][eager_retname]
if retname in outputs.keys():
# Replaced outputs by function returns
if isinstance(returns[i], list):
for j in range(len(returns[i])):
outputs[retname][j].reconstruct_from_(
returns[i][j], False
)
else:
outputs[retname][0].reconstruct_from_(returns[i], False)
elif isinstance(returns, list):
assert len(outputs.keys()) == 1
key = next(iter(outputs.keys()))
for j in range(len(returns)):
outputs[key][j].reconstruct_from_(returns[j], False)
else:
assert len(outputs.keys()) == 1
key = next(iter(outputs.keys()))
if isinstance(outputs[key], list):
outputs[key][0].reconstruct_from_(returns, False)
else:
outputs[key].reconstruct_from_(returns, False)
def trace_op(
self,
type,
inputs,
outputs,
attrs,
stop_gradient=False,
inplace_map=None,
):
if framework.in_dygraph_mode():
# inputs : {"sum": [tensor], ...}
# outputs : {"sum": [tensor], ...}
if type in name_mapping.keys():
type = name_mapping[type]["final_op_name"]
assert type in _legacy_C_ops.__dict__
self.eager_trace_op(
type, inputs, outputs, attrs, stop_gradient, inplace_map
)
else:
self.eager_legacy_trace_op(
type, inputs, outputs, attrs, stop_gradient, inplace_map
)
else:
raise ValueError("trace_op only work in dygraph mode")
def train_mode(self):
self._train_mode = True
def eval_mode(self):
self._train_mode = False