From a038747cac9e5da307af915a7508850e4b4a1249 Mon Sep 17 00:00:00 2001 From: Guanghua Yu <742925032@qq.com> Date: Mon, 26 Sep 2022 19:57:56 +0800 Subject: [PATCH] update quantization new format (#46305) --- .../slim/quantization/imperative/qat.py | 38 ++-- .../post_training_quantization.py | 15 +- .../slim/quantization/quantization_pass.py | 178 ++++++++++++++++-- .../fluid/contrib/slim/quantization/utils.py | 9 +- ...st_onnx_format_quantization_mobilenetv1.py | 48 ----- 5 files changed, 202 insertions(+), 86 deletions(-) diff --git a/python/paddle/fluid/contrib/slim/quantization/imperative/qat.py b/python/paddle/fluid/contrib/slim/quantization/imperative/qat.py index 8bc16526c3d..5df94f502a4 100644 --- a/python/paddle/fluid/contrib/slim/quantization/imperative/qat.py +++ b/python/paddle/fluid/contrib/slim/quantization/imperative/qat.py @@ -223,7 +223,8 @@ class ImperativeQuantAware(object): self._quantize_inputs = ImperativeQuantizeInputs(**kwargs) - self._quantize_outputs = ImperativeQuantizeOutputs(moving_rate) + self._quantize_outputs = ImperativeQuantizeOutputs( + moving_rate, activation_bits) def quantize(self, model): """ @@ -412,16 +413,18 @@ class ImperativeQuantizeOutputs(object): Calculate the output scales for target layers. """ - def __init__(self, moving_rate=0.9): + def __init__(self, moving_rate=0.9, activation_bits=8): """ The constructor for ImperativeQuantizeOutputs. Args: moving_rate(float): The decay coefficient of moving average. The default value is 0.9. + activation_bits(int, optional): quantization bit number for activation. Default is 8. """ super(ImperativeQuantizeOutputs, self).__init__() self._moving_rate = moving_rate + self._activation_bits = activation_bits def apply(self, model): """ @@ -478,7 +481,7 @@ class ImperativeQuantizeOutputs(object): the saved model. Default None. onnx_format (bool, optional): Whether to export the quantized model with format of ONNX. Default is False. - **configs (dict, optional): Other save configuration options for + **config (dict, optional): Other save configuration options for compatibility. We do not recommend using these configurations, they may be removed in the future. If not necessary, DO NOT use them. Default None. @@ -518,27 +521,30 @@ class ImperativeQuantizeOutputs(object): model_filename=model_filename, params_filename=params_filename)) - self._gather_scales(infer_program, scope, fetch_targets) + if not onnx_format: + self._gather_scales(infer_program, scope, fetch_targets) - # Remove `moving_average_abs_max_scale` node in sub graphs. - graph = IrGraph(core.Graph(infer_program.desc), for_test=False) - for sub_graph in graph.all_sub_graphs(): - for _op in sub_graph.all_op_nodes(): - if _op.name() == "moving_average_abs_max_scale": - sub_graph.safe_remove_nodes(_op) - sub_graph.resolve_hazard() - infer_program = graph.to_program() + # Remove `moving_average_abs_max_scale` node in sub graphs. + graph = IrGraph(core.Graph(infer_program.desc), for_test=False) + for sub_graph in graph.all_sub_graphs(): + for _op in sub_graph.all_op_nodes(): + if _op.name() == "moving_average_abs_max_scale": + sub_graph.safe_remove_nodes(_op) + sub_graph.resolve_hazard() + infer_program = graph.to_program() - self._set_skip_quant_attr(infer_program) + self._set_skip_quant_attr(infer_program) - clip_extra = False - if onnx_format: + clip_extra = False + else: graph = IrGraph(core.Graph(infer_program.desc), for_test=False) - transform_pass = ReplaceFakeQuantDequantPass(scope, place) + transform_pass = ReplaceFakeQuantDequantPass( + scope, place, quant_bits=self._activation_bits) transform_pass.apply(graph) quant_weight_pass = QuantWeightPass(scope, place) quant_weight_pass.apply(graph) + infer_program = graph.to_program() clip_extra = True diff --git a/python/paddle/fluid/contrib/slim/quantization/post_training_quantization.py b/python/paddle/fluid/contrib/slim/quantization/post_training_quantization.py index d0c885eef47..4d538cc75b3 100644 --- a/python/paddle/fluid/contrib/slim/quantization/post_training_quantization.py +++ b/python/paddle/fluid/contrib/slim/quantization/post_training_quantization.py @@ -344,7 +344,7 @@ class PostTrainingQuantization(object): self._fetch_list = None self._data_loader = data_loader - self._out_scale_op_list = utils._out_scale_op_list + self._out_scale_op_list = utils.QUANT_SUPPORTED_OP_TYPE_LIST self._quantized_weight_var_name = set() self._quantized_act_var_name = set() self._weight_op_pairs = {} @@ -843,9 +843,6 @@ class PostTrainingQuantization(object): hist, _ = np.histogram(var_tensor_abs, bins=bins) self._sampling_act_histogram[var_name][0] += hist - def l2_loss(self, gt, pred): - return ((gt - pred)**2).mean() - def _sample_ptf(self): """ The following code are modified from: @@ -885,10 +882,10 @@ class PostTrainingQuantization(object): q_max) * scale4 quant_dequant_var_scale8 = np.clip(np.round(var_tensor / scale8), 0, q_max) * scale8 - score1 = self.l2_loss(var_tensor, quant_dequant_var_scale1) - score2 = self.l2_loss(var_tensor, quant_dequant_var_scale2) - score4 = self.l2_loss(var_tensor, quant_dequant_var_scale4) - score8 = self.l2_loss(var_tensor, quant_dequant_var_scale8) + score1 = utils.l2_loss(var_tensor, quant_dequant_var_scale1) + score2 = utils.l2_loss(var_tensor, quant_dequant_var_scale2) + score4 = utils.l2_loss(var_tensor, quant_dequant_var_scale4) + score8 = utils.l2_loss(var_tensor, quant_dequant_var_scale8) score = [score1, score2, score4, score8] mask = 2**score.index(min(score)) scale = scale1 * mask @@ -1035,7 +1032,7 @@ class PostTrainingQuantization(object): scope=self._scope, place=self._place, quantizable_op_type=minor_quantizable_op_types, - is_full_quantized=self._is_full_quantize) + is_full_quantized=True) for sub_graph in graph.all_sub_graphs(): sub_graph._for_test = True diff --git a/python/paddle/fluid/contrib/slim/quantization/quantization_pass.py b/python/paddle/fluid/contrib/slim/quantization/quantization_pass.py index 4ba7a164c34..4909c9230e0 100644 --- a/python/paddle/fluid/contrib/slim/quantization/quantization_pass.py +++ b/python/paddle/fluid/contrib/slim/quantization/quantization_pass.py @@ -44,6 +44,7 @@ __all__ = [ 'AddQuantDequantPassV2', 'ReplaceFakeQuantDequantPass', 'QuantWeightPass', + 'AddQuantDequantForInferencePass', ] _fake_quant_op_list = [ @@ -1437,7 +1438,7 @@ class OutScaleForTrainingPass(object): self._place = _get_paddle_place(place) self._moving_rate = moving_rate self._is_test = is_test - self._teller_set = utils._out_scale_op_list + self._teller_set = utils.QUANT_SUPPORTED_OP_TYPE_LIST self._scale_dict = scale_dict def apply(self, graph): @@ -1567,7 +1568,7 @@ class OutScaleForInferencePass(object): scope(fluid.Scope): The scope is used to initialize these new parameters. """ self._scope = scope - self._teller_set = utils._out_scale_op_list + self._teller_set = utils.QUANT_SUPPORTED_OP_TYPE_LIST def apply(self, graph): """ @@ -1852,6 +1853,7 @@ class InsertQuantizeLinear(object): channel_wise(bool, optional): Whether quantization with per channel or not. Default is False. moving_rate(float): the rate for 'moving average' method. is_test(bool, optional): Whether quantization with training or not. Default is True. + scale_dict(dict, optional): calibration ranges of tensors output. """ def __init__(self, @@ -1861,7 +1863,8 @@ class InsertQuantizeLinear(object): quant_axis=-1, channel_wise=False, moving_rate=0.9, - is_test=True): + is_test=True, + scale_dict=None): self._place = place self._scope = scope self.quant_bits = quant_bits @@ -1869,6 +1872,7 @@ class InsertQuantizeLinear(object): self.channel_wise = channel_wise self._is_test = is_test self._moving_rate = moving_rate + self._scale_dict = scale_dict def insert_quant_op(self, graph, var_node, var_name=None): assert var_node.is_var(), '{} is not a var'.format(var_node.name()) @@ -1880,16 +1884,24 @@ class InsertQuantizeLinear(object): var_dtype=var_node.dtype()) data_type = 'float64' if var_node.dtype( ) == core.VarDesc.VarType.FP64 else 'float32' + scale_name = self._quantized_scale_name(var_name) if self.channel_wise: scale_var_shape = var_node.shape()[self.quant_axis] scale_var_type = core.VarDesc.VarType.LOD_TENSOR - init_scale_value = np.zeros(scale_var_shape, dtype=data_type) + init_scale_value = np.ones(scale_var_shape, + dtype=data_type) * _SCALE_DEFAULT_VALUE else: scale_var_shape = 1 scale_var_type = var_node.type() init_scale_value = np.array([_SCALE_DEFAULT_VALUE], dtype=data_type) + + if self._scale_dict is not None and var_node.name( + ) in self._scale_dict.keys(): + init_scale_value = np.array([self._scale_dict[var_node.name()]], + dtype=data_type) + scale_var_node = graph.create_persistable_node( - name=self._quantized_scale_name(var_name), + name=scale_name, var_type=scale_var_type, shape=[scale_var_shape], var_dtype=var_node.dtype()) @@ -2346,7 +2358,8 @@ class AddQuantDequantPassV2(object): skip_pattern=["skip_quant"], quantizable_op_type=["elementwise_add", "pool2d"], is_full_quantized=False, - is_test=None): + is_test=None, + scale_dict=None): """ Args: scope(paddle.Scope): The scope is used to initialize these new parameters. @@ -2366,6 +2379,7 @@ class AddQuantDequantPassV2(object): quantization to all supported quantizable op type. If set is_full_quantized as False, only apply quantization to the op type according to the input quantizable_op_type. + scale_dict(dict, optional): calibration ranges of tensors output. Examples: .. code-block:: python @@ -2388,6 +2402,7 @@ class AddQuantDequantPassV2(object): self._quant_bits = quant_bits self._is_test = is_test self._skip_pattern = skip_pattern + self._scale_dict = scale_dict if is_full_quantized: self._quantizable_op_type = utils._act_supported_quantizable_op_type @@ -2444,8 +2459,6 @@ class AddQuantDequantPassV2(object): if is_skip or is_quantized: continue - op_node.op()._set_attr("quantization_type", - "qat_without_weight") arg_names = utils._get_op_input_var_names(op_node) for arg_name in arg_names: in_node = graph._find_node_by_name( @@ -2462,7 +2475,8 @@ class AddQuantDequantPassV2(object): quant_axis=-1, channel_wise=False, moving_rate=self._moving_rate, - is_test=self._is_test) + is_test=self._is_test, + scale_dict=self._scale_dict) quant_var_node, scale_var_node = insert_quant_pass.insert_quant_op( graph, in_node) dequant_var_node = insert_quant_pass.insert_dequant_op( @@ -2491,13 +2505,14 @@ class ReplaceFakeQuantDequantPass(object): replace quant-dequant ops with quantize_linear and dequantize_linear ops. """ - def __init__(self, scope, place): + def __init__(self, scope, place, quant_bits=8): r""" Args: scope(paddle.Scope): The scope is used to initialize these new parameters. place(paddle.CPUPlace|paddle.CUDAPlace|str): place is used to initialize new parameters described above. If ``place`` is string, it can be It can be ``cpu`` or ``gpu:x``, where ``x`` is the index of the GPUs. + quant_bits(int, optional): quantization bit number for activation. Default is 8. Examples: .. code-block:: python @@ -2516,6 +2531,7 @@ class ReplaceFakeQuantDequantPass(object): """ self._place = _get_paddle_place(place) self._scope = scope + self._quant_bits = quant_bits assert self._scope != None, "scope must not be None." assert self._place != None, "place must not be None." @@ -2525,7 +2541,8 @@ class ReplaceFakeQuantDequantPass(object): fake_quant_dequant_ops = [] for op in graph.all_op_nodes(): - if op.name() in _fake_quant_dequant_op_list: + if op.name() in _fake_quant_dequant_op_list or op.name( + ) == "moving_average_abs_max_scale": fake_quant_dequant_ops.append(op) for _op in fake_quant_dequant_ops: @@ -2544,7 +2561,7 @@ class ReplaceFakeQuantDequantPass(object): quant_axis = op.op().attr("quant_axis") if op.op().has_attr( "quant_axis") else -1 bit_length = op.op().attr("bit_length") if op.op().has_attr( - "bit_length") else 8 + "bit_length") else self._quant_bits zero_point_node = None quanted_node = x_node @@ -2733,3 +2750,140 @@ class QuantWeightPass(object): def _restore_var(self, name, array): tensor = self._scope.find_var(name).get_tensor() tensor.set(array, self._place) + + +class AddQuantDequantForInferencePass(object): + """ + When export quant model, it will traverse to find the output of each op, and then insert the quant/dequant op after it. + """ + + def __init__(self, scope, place, quant_bits=8): + """ + Args: + scope(fluid.Scope): The scope is used to initialize these new parameters. + place(paddle.CPUPlace|paddle.CUDAPlace|str): place is used to restore the weight tensors. + If it's string, it can be ``cpu``, and ``gpu:x``, where ``x`` is the index of the GPUs. + quant_bits(int, optional): quantization bit number for weight. Default is 8. + """ + self._scope = scope + self._place = place + self._quant_bits = quant_bits + self._teller_set = utils.QUANT_SUPPORTED_OP_TYPE_LIST + + def apply(self, graph): + """ + Args: + graph(IrGraph): the target graph. + """ + assert isinstance(graph, + IrGraph), 'graph must be the instance of IrGraph.' + dequant_node_map = {} + dequantized_vars_map = collections.OrderedDict() + for op_node in graph.all_op_nodes(): + if op_node.name() in self._teller_set: + var_names = utils._get_op_output_var_names(op_node) + for var_name in var_names: + out_node = graph._find_node_by_name(op_node.outputs, + var_name) + if out_node.dtype() not in \ + [core.VarDesc.VarType.FP64, core.VarDesc.VarType.FP32]: + continue + if var_name in dequantized_vars_map: + dequant_var_node = dequantized_vars_map[var_name] + else: + dequant_var_node = self._insert_quant_dequant_op( + graph, out_node) + dequantized_vars_map[var_name] = dequant_var_node + dequant_node_map[var_name] = dequant_var_node + + # remove unuse node and link act quant/dequant linear to op node + for op_node in graph.all_op_nodes(): + if op_node.name() == 'moving_average_abs_max_scale': + graph.safe_remove_nodes(op_node) + else: + var_names = utils._get_op_input_var_names(op_node) + for var_name in var_names: + if var_name in dequant_node_map: + in_node = graph._find_node_by_name( + op_node.inputs, var_name) + graph.update_input_link(in_node, + dequant_node_map[var_name], + op_node) + + return graph + + def _scale_name(self, var_name): + """ + Return the scale name for the var named `var_name`. + """ + return "%s@scale" % (var_name) + + def _insert_quant_dequant_op(self, graph, var_node): + assert var_node.is_var(), '{} is not a var'.format(var_node.name()) + var_name = var_node.name() + quant_axis = -1 + quant_var_node = graph.create_var_node( + name="{}.quantized".format(var_name), + var_type=var_node.type(), + shape=var_node.shape(), + var_dtype=var_node.dtype()) + scale_var_node = graph._find_node_by_name(graph.all_persistable_nodes(), + self._scale_name(var_name)) + try: + zero_point_node = graph._find_node_by_name( + graph.all_persistable_nodes(), + "{}@zero_point".format(quant_var_node.name())) + except: + zero_point_node = graph.create_persistable_node( + name="{}@zero_point".format(quant_var_node.name()), + var_type=core.VarDesc.VarType.LOD_TENSOR, + shape=scale_var_node.shape(), + var_dtype=core.VarDesc.VarType.INT32) + _init_var_node(zero_point_node, + np.zeros(scale_var_node.shape(), dtype="int32"), + self._scope, self._place) + + inputs = {"X": var_node, "Scale": scale_var_node} + if zero_point_node is not None: + inputs["ZeroPoint"] = zero_point_node + + attrs = {"quant_axis": quant_axis, "bit_length": self._quant_bits} + attrs["op_role"] = core.op_proto_and_checker_maker.OpRole.Forward + outputs = {"Y": quant_var_node} + + quant_op_node = graph.create_op_node(op_type="quantize_linear", + attrs=attrs, + inputs=inputs, + outputs=outputs) + + graph.link_to(var_node, quant_op_node) + graph.link_to(scale_var_node, quant_op_node) + if zero_point_node is not None: + graph.link_to(zero_point_node, quant_op_node) + graph.link_to(quant_op_node, quant_var_node) + + # add dequant_linear node + dequant_var_node = graph.create_var_node( + name="{}.dequantized".format(quant_var_node.name()), + var_type=quant_var_node.type(), + shape=quant_var_node.shape(), + var_dtype=quant_var_node.dtype()) + + inputs = {"X": quant_var_node, "Scale": scale_var_node} + if zero_point_node is not None: + inputs["ZeroPoint"] = zero_point_node + + attrs = {"quant_axis": -1, "bit_length": self._quant_bits} + attrs["op_role"] = core.op_proto_and_checker_maker.OpRole.Forward + + dequant_op_node = graph.create_op_node(op_type="dequantize_linear", + attrs=attrs, + inputs=inputs, + outputs={"Y": dequant_var_node}) + + graph.link_to(quant_var_node, dequant_op_node) + graph.link_to(scale_var_node, dequant_op_node) + if zero_point_node is not None: + graph.link_to(zero_point_node, dequant_op_node) + graph.link_to(dequant_op_node, dequant_var_node) + return dequant_var_node diff --git a/python/paddle/fluid/contrib/slim/quantization/utils.py b/python/paddle/fluid/contrib/slim/quantization/utils.py index 4d92f9f6bf8..f401c86673b 100644 --- a/python/paddle/fluid/contrib/slim/quantization/utils.py +++ b/python/paddle/fluid/contrib/slim/quantization/utils.py @@ -38,6 +38,7 @@ _act_supported_quantizable_op_type = [ "mean", "not_equal", "reshape", + "reshape2", "dropout", "bilinear_interp", "nearest_interp", @@ -112,10 +113,12 @@ _act_supported_quantizable_op_type = [ "scale", ] -_out_scale_op_list = list( +QUANT_SUPPORTED_OP_TYPE_LIST = list( set(_weight_supported_quantizable_op_type + _act_supported_quantizable_op_type)) +_out_scale_op_list = QUANT_SUPPORTED_OP_TYPE_LIST + _channelwise_quant_axis1_ops = [ 'conv2d_transpose', 'mul', 'matmul', 'matmul_v2' ] @@ -430,6 +433,10 @@ def calculate_quant_cos_error(orig_tensor, qdq_tensor): return cos_sim +def l2_loss(gt, pred): + return ((gt - pred)**2).mean() + + class tqdm(object): def __init__(self, total, bar_format='Loading|{bar}', ncols=80): diff --git a/python/paddle/fluid/tests/unittests/mkldnn/test_onnx_format_quantization_mobilenetv1.py b/python/paddle/fluid/tests/unittests/mkldnn/test_onnx_format_quantization_mobilenetv1.py index e59b70ec60c..aa1d35f50c5 100755 --- a/python/paddle/fluid/tests/unittests/mkldnn/test_onnx_format_quantization_mobilenetv1.py +++ b/python/paddle/fluid/tests/unittests/mkldnn/test_onnx_format_quantization_mobilenetv1.py @@ -292,24 +292,6 @@ class TestPostTrainingQuantization(unittest.TestCase): is_use_cache_file=is_use_cache_file) ptq.quantize() ptq.save_quantized_model(self.int8_model) - if onnx_format: - try: - collect_dict = ptq._calibration_scales - save_quant_table_path = os.path.join(self.int8_model, - 'calibration_table.txt') - with open(save_quant_table_path, 'w') as txt_file: - for tensor_name in collect_dict.keys(): - write_line = '{} {}'.format( - tensor_name, - collect_dict[tensor_name]['scale']) + '\n' - txt_file.write(write_line) - print( - "Quantization clip ranges of tensors is save in: {}".format( - save_quant_table_path)) - except: - print( - "Unable to generate `calibration_table.txt`, please update PaddlePaddle >= 2.3.3" - ) def run_test(self, model, @@ -429,36 +411,6 @@ class TestMKLDNNInt8ForMobilenetv1Avg(TestPostTrainingQuantization): onnx_format=False) -class TestMKLDNNInt8ForMobilenetv1AbsMaxONNXFormat(TestPostTrainingQuantization - ): - - def test_onnx_format_abs_max_mobilenetv1(self): - model = "MobileNet-V1" - algo = "abs_max" - round_type = "round" - data_urls = [ - 'http://paddle-inference-dist.bj.bcebos.com/int8/mobilenetv1_int8_model.tar.gz' - ] - data_md5s = ['13892b0716d26443a8cdea15b3c6438b'] - quantizable_op_type = ["conv2d", "depthwise_conv2d", "mul"] - is_full_quantize = False - is_use_cache_file = False - is_optimize_model = False - # The accuracy diff of post-training quantization (abs_max) maybe bigger - diff_threshold = 0 - self.run_test(model, - algo, - round_type, - data_urls, - data_md5s, - quantizable_op_type, - is_full_quantize, - is_use_cache_file, - is_optimize_model, - diff_threshold, - onnx_format=True) - - class TestMKLDNNInt8ForMobilenetv1AbsMax(TestPostTrainingQuantization): def test_abs_max_mobilenetv1(self): -- GitLab