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

168 lines
13 KiB
Python

# Copyright (c) 2025 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 unittest
import numpy as np
import paddle
from paddle.nn.quant import weight_quantize
paddle.seed(3)
np.random.seed(3)
# fmt: off
# 预先计算得到的权重矩阵,作为ref用于测试
ref_out = [[-103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103],
[-86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86],
[-69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69],
[-52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52],
[-35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35],
[-18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18],
[-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17],
[34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34],
[51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51],
[68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68],
[85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85],
[102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102],
[119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119],
[-103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103],
[-86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86],
[-69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69],
[-52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52],
[-35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35],
[-18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18],
[-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17],
[34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34],
[51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51],
[68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68],
[85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85],
[102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102],
[119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119],
[-103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103],
[-86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86],
[-69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69],
[-52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52],
[-35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35],
[-18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18],
[-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17],
[34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34],
[51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51],
[68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68],
[85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85],
[102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102],
[119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119],
[-103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103],
[-86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86],
[-69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69],
[-52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52],
[-35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35, -35],
[-18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18, -18],
[-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17],
[34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34],
[51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51],
[68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68],
[85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85],
[102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102, 102],
[119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119],
[-103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103, -103],
[-86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86, -86],
[-69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69, -69],
[-52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52, -52]]
# fmt: off
np.set_printoptions(threshold=100000000)
paddle.set_printoptions(threshold=100000000)
def arrange_cols(rows, cols):
weight = []
for i in range(rows):
for j in range(cols):
weight.append((j % 15) - 7)
# pack them
res = np.array(weight).reshape([rows, cols])
res0 = res[0::2,:] & 0x0F
res1 = (res[1::2,:] & 0x0F) << 4
res = res0 | res1
return res
class WeightQuantizeW4a8TestCase(unittest.TestCase):
def setUp(self):
self.rows = 64
self.cols = 64
self.weight = arrange_cols(self.rows, self.cols)
self.weight = paddle.to_tensor(self.weight).astype('int8')
def run_test(self):
out = weight_quantize(self.weight, algo="w4a8")[0]
out = out.reshape([-1])
baseline = np.array(ref_out).reshape([-1])
np.allclose(baseline, out.astype("int32").numpy(), atol=1e-2)
class WeightQuantizeW4a8ZeroSizeTensorTestCase(unittest.TestCase):
def setUp(self):
self.x_shape = [1, 0, 10]
self.dtype = "float32"
def _test_dygraph(self):
paddle.disable_static()
x = paddle.rand(shape= self.x_shape, dtype=paddle.float16)
x.stop_gradient=False
out, scale = weight_quantize(x, algo='weight_only_int8')
loss = out.sum()
loss.backward()
np.assert_allclose(x.grad.shape,x.shape)
def run_test(self):
self.setUp()
self._test_dygraph()
class WeightQuantizeW4afp8TestCase(unittest.TestCase):
def setUp(self):
self.rows = 128
self.cols = 128
weight = np.random.randint(-7, 7, size=[self.rows, self.cols], dtype='int8') # shape: [K, N]
self.weight_trans = weight.transpose() + 7
weight1 = weight[0::2, :] & 0x0F
weight2 = (weight[1::2, :] & 0x0F) << 4
weight_packed = weight1 | weight2
self.weight_packed = paddle.to_tensor(weight_packed)
def test(self):
out = weight_quantize(self.weight_packed, algo="w4afp8")[0] # shape: [N, K/2]
out_np = np.array(out.reshape([-1, 32]))
out_np_1 = (out_np >> 4) & 0x0F
out_np_2 = out_np & 0x0F
result = np.zeros((out_np_1.shape[0], out_np_1.shape[1]*2), dtype=out_np.dtype)
result[:, 1::2] = out_np_1
result[:, 0::2] = out_np_2
# ref out
tmp = self.weight_trans.reshape([-1, 64])
tmp1 = tmp[:, 0:32] & 0x0F
tmp2 = (tmp[:, 32:64] & 0x0F) << 4
ref_out = tmp1 | tmp2
ref_out = ref_out.reshape([-1, self.rows])
np.allclose(ref_out.astype("int32"), out.astype("int32").numpy(), atol=1e-2)
if __name__ == '__main__':
unittest.main()