298 lines
10 KiB
Python
298 lines
10 KiB
Python
# copyright (c) 2023 paddlepaddle authors. all rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import tempfile
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import unittest
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import numpy as np
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import paddle
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import paddle.nn.functional as F
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from paddle.nn import Conv2D, Linear, ReLU, Sequential
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from paddle.nn.quant.format import LinearDequanter, LinearQuanter
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from paddle.quantization import PTQ, QuantConfig
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from paddle.quantization.observers import AbsmaxObserver
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from paddle.quantization.observers.abs_max import AbsmaxObserverLayer
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class LeNetDygraph(paddle.nn.Layer):
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def __init__(self, num_classes=10):
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super().__init__()
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self.num_classes = num_classes
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self.features = Sequential(
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Conv2D(1, 6, 3, stride=1, padding=1),
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ReLU(),
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paddle.nn.MaxPool2D(2, 2),
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Conv2D(6, 16, 5, stride=1, padding=0),
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ReLU(),
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paddle.nn.MaxPool2D(2, 2),
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)
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if num_classes > 0:
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self.fc = Sequential(
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Linear(576, 120), Linear(120, 84), Linear(84, 10)
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)
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def forward(self, inputs):
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x = self.features(inputs)
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if self.num_classes > 0:
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x = paddle.flatten(x, 1)
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x = self.fc(x)
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out = F.relu(x)
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return out
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class TestPTQ(unittest.TestCase):
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def setUp(self):
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self.temp_dir = tempfile.TemporaryDirectory()
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self.path = os.path.join(self.temp_dir.name, 'ptq')
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def tearDown(self):
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self.temp_dir.cleanup()
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def _get_model_for_ptq(self):
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observer = AbsmaxObserver(quant_bits=8)
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model = LeNetDygraph()
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model.eval()
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q_config = QuantConfig(activation=observer, weight=observer)
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ptq = PTQ(q_config)
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quant_model = ptq.quantize(model)
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return quant_model, ptq
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def _count_layers(self, model, layer_type):
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count = 0
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for _layer in model.sublayers(True):
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if isinstance(_layer, layer_type):
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count += 1
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return count
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def test_quantize(self):
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ptq_model, _ = self._get_model_for_ptq()
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image = paddle.rand([1, 1, 32, 32], dtype="float32")
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out = ptq_model(image)
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self.assertIsNotNone(out)
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observer_count = self._count_layers(ptq_model, AbsmaxObserverLayer)
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self.assertEqual(observer_count, 14)
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def test_convert(self):
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quant_model, ptq = self._get_model_for_ptq()
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image = paddle.rand([1, 1, 32, 32], dtype="float32")
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out = quant_model(image)
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converted_model = ptq.convert(quant_model)
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out = converted_model(image)
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self.assertIsNotNone(out)
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observer_count = self._count_layers(
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converted_model, AbsmaxObserverLayer
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)
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quanter_count = self._count_layers(converted_model, LinearQuanter)
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dequanter_count = self._count_layers(converted_model, LinearDequanter)
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self.assertEqual(observer_count, 0)
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self.assertEqual(dequanter_count, 14)
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self.assertEqual(quanter_count, 9)
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save_path = os.path.join(self.temp_dir.name, 'int8_infer')
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paddle.jit.save(converted_model, save_path, [image])
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paddle.enable_static()
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exe = paddle.static.Executor(paddle.CPUPlace())
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main_program = paddle.static.Program()
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startup_program = paddle.static.Program()
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with paddle.static.program_guard(main_program, startup_program):
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[
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inference_program,
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feed_target_names,
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fetch_targets,
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] = paddle.static.load_inference_model(save_path, exe)
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tensor_img = np.array(
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np.random.random((1, 1, 32, 32)), dtype=np.float32
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)
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results = exe.run(
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inference_program,
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feed={feed_target_names[0]: tensor_img},
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fetch_list=fetch_targets,
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)
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self.assertIsNotNone(results)
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paddle.disable_static()
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def test_convert_2times(self):
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quant_model, ptq = self._get_model_for_ptq()
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image = paddle.rand([1, 1, 32, 32], dtype="float32")
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out = quant_model(image)
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converted_model = ptq.convert(quant_model)
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converted_model = ptq.convert(converted_model)
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out = converted_model(image)
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self.assertIsNotNone(out)
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observer_count = self._count_layers(
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converted_model, AbsmaxObserverLayer
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)
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quanter_count = self._count_layers(converted_model, LinearQuanter)
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dequanter_count = self._count_layers(converted_model, LinearDequanter)
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self.assertEqual(observer_count, 0)
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self.assertEqual(dequanter_count, 14)
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self.assertEqual(quanter_count, 9)
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save_path = os.path.join(self.temp_dir.name, 'int8_infer')
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paddle.jit.save(converted_model, save_path, [image])
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paddle.enable_static()
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exe = paddle.static.Executor(paddle.CPUPlace())
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main_program = paddle.static.Program()
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startup_program = paddle.static.Program()
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with paddle.static.program_guard(main_program, startup_program):
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[
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inference_program,
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feed_target_names,
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fetch_targets,
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] = paddle.static.load_inference_model(save_path, exe)
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tensor_img = np.array(
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np.random.random((1, 1, 32, 32)), dtype=np.float32
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)
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results = exe.run(
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inference_program,
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feed={feed_target_names[0]: tensor_img},
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fetch_list=fetch_targets,
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)
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self.assertIsNotNone(results)
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paddle.disable_static()
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class TestPTQFP8(unittest.TestCase):
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def setUp(self):
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self.temp_dir = tempfile.TemporaryDirectory()
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self.path = os.path.join(self.temp_dir.name, 'ptq')
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def tearDown(self):
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self.temp_dir.cleanup()
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def _get_model_for_ptq(self):
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weight_observer = AbsmaxObserver(quant_bits=(4, 3))
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act_observer = AbsmaxObserver(quant_bits=(5, 2))
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model = LeNetDygraph()
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model.eval()
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q_config = QuantConfig(activation=act_observer, weight=weight_observer)
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ptq = PTQ(q_config)
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quant_model = ptq.quantize(model)
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return quant_model, ptq
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def _count_layers(self, model, layer_type):
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count = 0
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for _layer in model.sublayers(True):
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if isinstance(_layer, layer_type):
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count += 1
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return count
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def test_quantize(self):
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ptq_model, _ = self._get_model_for_ptq()
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image = paddle.rand([1, 1, 32, 32], dtype="float32")
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out = ptq_model(image)
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self.assertIsNotNone(out)
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observer_count = self._count_layers(ptq_model, AbsmaxObserverLayer)
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self.assertEqual(observer_count, 14)
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def test_convert(self):
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quant_model, ptq = self._get_model_for_ptq()
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image = paddle.rand([1, 1, 32, 32], dtype="float32")
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out = quant_model(image)
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converted_model = ptq.convert(quant_model)
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out = converted_model(image)
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self.assertIsNotNone(out)
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observer_count = self._count_layers(
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converted_model, AbsmaxObserverLayer
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)
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quanter_count = self._count_layers(converted_model, LinearQuanter)
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dequanter_count = self._count_layers(converted_model, LinearDequanter)
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self.assertEqual(observer_count, 0)
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self.assertEqual(dequanter_count, 14)
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self.assertEqual(quanter_count, 9)
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save_path = os.path.join(self.temp_dir.name, 'int8_infer')
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paddle.jit.save(converted_model, save_path, [image])
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paddle.enable_static()
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exe = paddle.static.Executor(paddle.CPUPlace())
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main_program = paddle.static.Program()
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startup_program = paddle.static.Program()
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with paddle.static.program_guard(main_program, startup_program):
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[
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inference_program,
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feed_target_names,
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fetch_targets,
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] = paddle.static.load_inference_model(save_path, exe)
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tensor_img = np.array(
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np.random.random((1, 1, 32, 32)), dtype=np.float32
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)
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results = exe.run(
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inference_program,
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feed={feed_target_names[0]: tensor_img},
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fetch_list=fetch_targets,
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)
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self.assertIsNotNone(results)
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paddle.disable_static()
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def test_convert_2times(self):
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quant_model, ptq = self._get_model_for_ptq()
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image = paddle.rand([1, 1, 32, 32], dtype="float32")
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out = quant_model(image)
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converted_model = ptq.convert(quant_model)
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converted_model = ptq.convert(converted_model)
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out = converted_model(image)
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self.assertIsNotNone(out)
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observer_count = self._count_layers(
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converted_model, AbsmaxObserverLayer
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)
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quanter_count = self._count_layers(converted_model, LinearQuanter)
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dequanter_count = self._count_layers(converted_model, LinearDequanter)
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self.assertEqual(observer_count, 0)
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self.assertEqual(dequanter_count, 14)
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self.assertEqual(quanter_count, 9)
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save_path = os.path.join(self.temp_dir.name, 'int8_infer')
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paddle.jit.save(converted_model, save_path, [image])
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paddle.enable_static()
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exe = paddle.static.Executor(paddle.CPUPlace())
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main_program = paddle.static.Program()
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startup_program = paddle.static.Program()
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with paddle.static.program_guard(main_program, startup_program):
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[
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inference_program,
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feed_target_names,
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fetch_targets,
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] = paddle.static.load_inference_model(save_path, exe)
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tensor_img = np.array(
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np.random.random((1, 1, 32, 32)), dtype=np.float32
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)
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results = exe.run(
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inference_program,
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feed={feed_target_names[0]: tensor_img},
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fetch_list=fetch_targets,
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)
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self.assertIsNotNone(results)
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paddle.disable_static()
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if __name__ == '__main__':
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unittest.main()
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