From 69ccdd35cda4c8482e189fa350fbcb83997872f2 Mon Sep 17 00:00:00 2001
From: wanchen.swc <wanchen.swc@alibaba-inc.com>
Date: 星期一, 06 三月 2023 18:18:31 +0800
Subject: [PATCH] [Quantization] model quantization for inference
---
funasr/export/models/modules/encoder_layer.py | 6 +-
funasr/export/models/modules/multihead_att.py | 28 ++++++++-----
funasr/export/export_model.py | 51 +++++++++++++++++++++++--
3 files changed, 67 insertions(+), 18 deletions(-)
diff --git a/funasr/export/export_model.py b/funasr/export/export_model.py
index 3cbf6d2..1c677c9 100644
--- a/funasr/export/export_model.py
+++ b/funasr/export/export_model.py
@@ -15,7 +15,9 @@
# assert torch_version > 1.9
class ASRModelExportParaformer:
- def __init__(self, cache_dir: Union[Path, str] = None, onnx: bool = True):
+ def __init__(
+ self, cache_dir: Union[Path, str] = None, onnx: bool = True, quant: bool = True
+ ):
assert check_argument_types()
self.set_all_random_seed(0)
if cache_dir is None:
@@ -28,6 +30,7 @@
)
print("output dir: {}".format(self.cache_dir))
self.onnx = onnx
+ self.quant = quant
def _export(
@@ -56,6 +59,28 @@
print("output dir: {}".format(export_dir))
+ def _torch_quantize(self, model):
+ from torch_quant.module import ModuleFilter
+ from torch_quant.observer import HistogramObserver
+ from torch_quant.quantizer import Backend, Quantizer
+ from funasr.export.models.modules.decoder_layer import DecoderLayerSANM
+ from funasr.export.models.modules.encoder_layer import EncoderLayerSANM
+ module_filter = ModuleFilter(include_classes=[EncoderLayerSANM, DecoderLayerSANM])
+ module_filter.exclude_op_types = [torch.nn.Conv1d]
+ quantizer = Quantizer(
+ module_filter=module_filter,
+ backend=Backend.FBGEMM,
+ act_ob_ctr=HistogramObserver,
+ )
+ model.eval()
+ calib_model = quantizer.calib(model)
+ # run calibration data
+ # using dummy inputs for a example
+ dummy_input = model.get_dummy_inputs()
+ _ = calib_model(*dummy_input)
+ quant_model = quantizer.quantize(model)
+ return quant_model
+
def _export_torchscripts(self, model, verbose, path, enc_size=None):
if enc_size:
dummy_input = model.get_dummy_inputs(enc_size)
@@ -65,6 +90,12 @@
# model_script = torch.jit.script(model)
model_script = torch.jit.trace(model, dummy_input)
model_script.save(os.path.join(path, f'{model.model_name}.torchscripts'))
+
+ if self.quant:
+ quant_model = self._torch_quantize(model)
+ model_script = torch.jit.trace(quant_model, dummy_input)
+ model_script.save(os.path.join(path, f'{model.model_name}_quant.torchscripts'))
+
def set_all_random_seed(self, seed: int):
random.seed(seed)
@@ -107,17 +138,27 @@
# model_script = torch.jit.script(model)
model_script = model #torch.jit.trace(model)
+ model_path = os.path.join(path, f'{model.model_name}.onnx')
torch.onnx.export(
model_script,
dummy_input,
- os.path.join(path, f'{model.model_name}.onnx'),
+ model_path,
verbose=verbose,
opset_version=14,
input_names=model.get_input_names(),
output_names=model.get_output_names(),
dynamic_axes=model.get_dynamic_axes()
)
+
+ if self.quant:
+ from onnxruntime.quantization import QuantType, quantize_dynamic
+ quant_model_path = os.path.join(path, f'{model.model_name}_quant.onnx')
+ quantize_dynamic(
+ model_input=model_path,
+ model_output=quant_model_path,
+ weight_type=QuantType.QUInt8,
+ )
if __name__ == '__main__':
@@ -126,10 +167,12 @@
model_path = sys.argv[1]
output_dir = sys.argv[2]
onnx = sys.argv[3]
+ quant = sys.argv[4]
onnx = onnx.lower()
onnx = onnx == 'true'
+ quant = quant == 'true'
# model_path = 'damo/speech_paraformer-large_asr_nat-zh-cn-16k-common-vocab8404-pytorch'
# output_dir = "../export"
- export_model = ASRModelExportParaformer(cache_dir=output_dir, onnx=onnx)
+ export_model = ASRModelExportParaformer(cache_dir=output_dir, onnx=onnx, quant=quant)
export_model.export(model_path)
- # export_model.export('/root/cache/export/damo/speech_paraformer-large_asr_nat-zh-cn-16k-common-vocab8404-pytorch')
\ No newline at end of file
+ # export_model.export('/root/cache/export/damo/speech_paraformer-large_asr_nat-zh-cn-16k-common-vocab8404-pytorch')
diff --git a/funasr/export/models/modules/encoder_layer.py b/funasr/export/models/modules/encoder_layer.py
index 622b109..1da05f3 100644
--- a/funasr/export/models/modules/encoder_layer.py
+++ b/funasr/export/models/modules/encoder_layer.py
@@ -16,6 +16,7 @@
self.feed_forward = model.feed_forward
self.norm1 = model.norm1
self.norm2 = model.norm2
+ self.in_size = model.in_size
self.size = model.size
def forward(self, x, mask):
@@ -23,13 +24,12 @@
residual = x
x = self.norm1(x)
x = self.self_attn(x, mask)
- if x.size(2) == residual.size(2):
+ if self.in_size == self.size:
x = x + residual
residual = x
x = self.norm2(x)
x = self.feed_forward(x)
- if x.size(2) == residual.size(2):
- x = x + residual
+ x = x + residual
return x, mask
diff --git a/funasr/export/models/modules/multihead_att.py b/funasr/export/models/modules/multihead_att.py
index 7d685f5..0a56676 100644
--- a/funasr/export/models/modules/multihead_att.py
+++ b/funasr/export/models/modules/multihead_att.py
@@ -64,6 +64,21 @@
return self.linear_out(context_layer) # (batch, time1, d_model)
+def preprocess_for_attn(x, mask, cache, pad_fn):
+ x = x * mask
+ x = x.transpose(1, 2)
+ if cache is None:
+ x = pad_fn(x)
+ else:
+ x = torch.cat((cache[:, :, 1:], x), dim=2)
+ cache = x
+ return x, cache
+
+
+import torch.fx
+torch.fx.wrap('preprocess_for_attn')
+
+
class MultiHeadedAttentionSANMDecoder(nn.Module):
def __init__(self, model):
super().__init__()
@@ -73,16 +88,7 @@
self.attn = None
def forward(self, inputs, mask, cache=None):
- # b, t, d = inputs.size()
- # mask = torch.reshape(mask, (b, -1, 1))
- inputs = inputs * mask
-
- x = inputs.transpose(1, 2)
- if cache is None:
- x = self.pad_fn(x)
- else:
- x = torch.cat((cache[:, :, 1:], x), dim=2)
- cache = x
+ x, cache = preprocess_for_attn(inputs, mask, cache, self.pad_fn)
x = self.fsmn_block(x)
x = x.transpose(1, 2)
@@ -232,4 +238,4 @@
new_context_layer_shape = context_layer.size()[:-2] + (self.all_head_size,)
context_layer = context_layer.view(new_context_layer_shape)
return self.linear_out(context_layer) # (batch, time1, d_model)
-
\ No newline at end of file
+
--
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