1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
import argparse
import os
import onnx
def export_and_recurse(node, attribute, output_dir, level):
name = node.name
name = name.replace("/", "_")
sub_model = onnx.ModelProto()
sub_model.graph.MergeFrom(attribute.g)
filename = "L" + str(level) + "_" + node.op_type + "_" + attribute.name + "_" + name + ".onnx"
onnx.save_model(sub_model, os.path.join(output_dir, filename))
dump_subgraph(sub_model, output_dir, level + 1)
def dump_subgraph(model, output_dir, level=0):
graph = model.graph
for node in graph.node:
if node.op_type == "Scan" or node.op_type == "Loop":
body_attribute = next(iter(filter(lambda attr: attr.name == "body", node.attribute)))
export_and_recurse(node, body_attribute, output_dir, level)
if node.op_type == "If":
then_attribute = next(iter(filter(lambda attr: attr.name == "then_branch", node.attribute)))
else_attribute = next(iter(filter(lambda attr: attr.name == "else_branch", node.attribute)))
export_and_recurse(node, then_attribute, output_dir, level)
export_and_recurse(node, else_attribute, output_dir, level)
def parse_args():
parser = argparse.ArgumentParser(
os.path.basename(__file__), description="Dump all subgraphs from an ONNX model into separate onnx files."
)
parser.add_argument("-m", "--model", required=True, help="model file")
parser.add_argument("-o", "--out", required=True, help="output directory")
return parser.parse_args()
def main():
args = parse_args()
model_path = args.model
out = os.path.abspath(args.out)
if not os.path.exists(out):
os.makedirs(out)
model = onnx.load_model(model_path)
dump_subgraph(model, out)
if __name__ == "__main__":
main()
|
