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paddlepaddle--paddle/test/tensorrt/test_converter_model_resnet50.py
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2026-07-13 12:40:42 +08:00

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# 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 tempfile
import unittest
import numpy as np
from get_program import (
get_r50_program,
get_r50_refit_program,
)
import paddle
import paddle.inference as paddle_infer
from paddle.quantization import PTQ, QuantConfig
from paddle.quantization.observers import AbsmaxObserver
from paddle.tensorrt.export import (
Input,
PrecisionMode,
TensorRTConfig,
convert,
convert_to_trt,
)
from paddle.tensorrt.util import (
predict_program,
)
from paddle.vision.models import resnet18
# NOTE(Pan Zhaowu): using legacy linear to fulfill promise of tensorrt graph capturing
# and converting.
paddle.set_flags({"FLAGS_use_legacy_linear": True})
def standardize(array):
mean_val = np.mean(array)
std_val = np.std(array)
standardized_array = (array - mean_val) / std_val
return standardized_array
class TestConverterResNet50(unittest.TestCase):
def setUp(self):
self.temp_dir = tempfile.TemporaryDirectory()
self.path = os.path.join(self.temp_dir.name, 'pir-trt')
def test_paddle_to_tensorrt_conversion_r50(self):
# Step1: get program and init fake inputs
program, scope, param_dict = get_r50_program()
# Set input
input_config = Input(
min_input_shape=(1, 3, 224, 224),
optim_input_shape=(1, 3, 224, 224),
max_input_shape=(4, 3, 224, 224),
input_data_type='float32',
name='input',
)
_, input_optim_data, _ = input_config.generate_input_data()
# Create a TensorRTConfig with inputs as a required field.
trt_config = TensorRTConfig(inputs=[input_config])
trt_config.disable_passes = ['dead_code_elimination_pass']
output_var = program.list_vars()[-1]
# get original results(for tests only)
output_expected = predict_program(
program, {"input": input_optim_data}, [output_var]
)
program_with_trt = convert_to_trt(program, trt_config, scope)
output_var = program_with_trt.list_vars()[-1]
# Step6: run inference(converted_program)
output_converted = predict_program(
program_with_trt, {"input": input_optim_data}, [output_var]
)
output_expected = standardize(output_expected[0])
output_trt = standardize(output_converted[0])
# Check that the results are close to each other within a tolerance of 1e-3
np.testing.assert_allclose(
output_expected,
output_trt,
rtol=1e-3,
atol=1e-3,
err_msg="Outputs are not within the 1e-3 tolerance",
)
def test_refit(self):
# Step1: get program and init fake inputs
paddle.enable_static()
save_path = os.path.join(self.temp_dir.name, 'resnet50')
program, scope, param_dict = get_r50_refit_program(save_path)
# Set input
input_config = Input(
min_input_shape=(1, 3, 224, 224),
optim_input_shape=(1, 3, 224, 224),
max_input_shape=(4, 3, 224, 224),
input_data_type='float32',
)
_, input_optim_data, _ = input_config.generate_input_data()
# Create a TensorRTConfig with inputs as a required field.
trt_config = TensorRTConfig(inputs=[input_config])
output_var = program.list_vars()[-1]
# get original results(for tests only)
output_expected = predict_program(
program, {"input": input_optim_data}, [output_var]
)
trt_save_path = os.path.join(self.temp_dir.name, 'resnet50trt')
trt_config.save_model_dir = trt_save_path
trt_config.refit_params_path = save_path + '.pdiparams'
model_dir = save_path
program_with_trt = paddle.tensorrt.convert(model_dir, trt_config)
config = paddle_infer.Config(
trt_config.save_model_dir + '.json',
trt_config.save_model_dir + '.pdiparams',
)
config.switch_ir_debug(True)
if paddle.is_compiled_with_cuda():
config.enable_use_gpu(100, 0)
else:
config.disable_gpu()
predictor = paddle_infer.create_predictor(config)
paddle.disable_static()
for i, input_instance in enumerate(trt_config.inputs):
min_data, _, max_data = input_instance.generate_input_data()
model_inputs = paddle.to_tensor(min_data)
output_converted = predictor.run([model_inputs])
output_expected = standardize(output_expected[0])
output_trt = standardize(output_converted[0].numpy())
np.testing.assert_allclose(
output_expected,
output_trt,
rtol=1e-1,
atol=1e-1,
err_msg="Outputs are not within the 1e-1 tolerance",
)
def test_paddle_to_tensorrt_conversion_r50_collect_shape(self):
# Step1: get program and init fake inputs
program, scope, param_dict = get_r50_program()
# Set input
input_data = tuple(
np.random.rand(n, 3, 224, 224).astype(np.float32) for n in (1, 2, 4)
)
input_optim_data = input_data[1]
input_config = Input(warmup_data=input_data)
# Create a TensorRTConfig with inputs as a required field.
trt_config = TensorRTConfig(inputs=[input_config])
trt_config.disable_passes = ['dead_code_elimination_pass']
output_var = program.list_vars()[-1]
# get original results(for tests only)
output_expected = predict_program(
program, {"input": input_optim_data}, [output_var]
)
program_with_trt = convert_to_trt(program, trt_config, scope)
output_var = program_with_trt.list_vars()[-1]
# Step6: run inference(converted_program)
output_converted = predict_program(
program_with_trt, {"input": input_optim_data}, [output_var]
)
output_expected = standardize(output_expected[0])
output_trt = standardize(output_converted[0])
# Check that the results are close to each other within a tolerance of 1e-3
np.testing.assert_allclose(
output_expected,
output_trt,
rtol=1e-2,
atol=1e-2,
err_msg="Outputs are not within the 1e-2 tolerance",
)
def test_convert_quant_model(self):
paddle.disable_static()
image = paddle.ones([1, 3, 224, 224], dtype="float32")
model = resnet18()
model.eval()
output_fp32 = model(image)
observer = AbsmaxObserver(quant_bits=8)
q_config = QuantConfig(activation=observer, weight=observer)
ptq = PTQ(q_config)
quant_model = ptq.quantize(model)
out = quant_model(image)
converted_model = ptq.convert(quant_model)
save_path = os.path.join(self.temp_dir.name, 'int8_infer')
paddle.jit.save(converted_model, save_path, input_spec=[image])
paddle.enable_static()
trt_save_path = os.path.join(self.temp_dir.name, 'int8_trt_infer')
# Set input
input_config = Input(
min_input_shape=(1, 3, 224, 224),
optim_input_shape=(1, 3, 224, 224),
max_input_shape=(1, 3, 224, 224),
input_data_type='float32',
)
trt_config = TensorRTConfig(inputs=[input_config])
trt_config.disable_passes = ['dead_code_elimination_pass']
trt_config.save_model_dir = trt_save_path
trt_config.precision_mode = PrecisionMode.INT8
convert(save_path, trt_config)
config = paddle_infer.Config(
trt_config.save_model_dir + '.json',
trt_config.save_model_dir + '.pdiparams',
)
config.enable_use_gpu(100, 0)
predictor = paddle_infer.create_predictor(config)
output_trt_int8 = predictor.run([image])
# Check that the results are close to each other within a tolerance of 0.9
np.testing.assert_allclose(
output_fp32,
output_trt_int8[0],
rtol=0.9,
atol=0.9,
err_msg="Outputs are not within the 0.9 tolerance",
)
def test_paddle_to_tensorrt_conversion_r50_use_cuda_graph(self):
# Step1: get program and init fake inputs
program, scope, param_dict = get_r50_program()
# Set input
input_config = Input(
min_input_shape=(1, 3, 224, 224),
optim_input_shape=(1, 3, 224, 224),
max_input_shape=(4, 3, 224, 224),
input_data_type='float32',
name='input',
)
_, input_optim_data, _ = input_config.generate_input_data()
# Create a TensorRTConfig with inputs as a required field.
trt_config = TensorRTConfig(inputs=[input_config])
trt_config.disable_passes = ['dead_code_elimination_pass']
# use_cuda_graph: True
trt_config.use_cuda_graph = True
output_var = program.list_vars()[-1]
# get original results(for tests only)
output_expected = predict_program(
program, {"input": input_optim_data}, [output_var]
)
program_with_trt = convert_to_trt(program, trt_config, scope)
output_var = program_with_trt.list_vars()[-1]
# Step6: run inference(converted_program)
output_converted = predict_program(
program_with_trt, {"input": input_optim_data}, [output_var]
)
output_expected = standardize(output_expected[0])
output_trt = standardize(output_converted[0])
# Check that the results are close to each other within a tolerance of 1e-3
np.testing.assert_allclose(
output_expected,
output_trt,
rtol=1e-3,
atol=1e-3,
err_msg="Outputs are not within the 1e-3 tolerance",
)
if __name__ == "__main__":
unittest.main()