我一直试图将ML-Agents创建的冻结图形def转换为TFLite。但是，模型有一个输入变量，定义为：
self.sequence_length = tf.placeholder(
shape=None, dtype=tf.int32, name="sequence_length"
)
这似乎在转换中引起问题。
如果我在不传递形状的情况下进行转换，则会发生以下情况：
tflite_convert --output_file=model.tflite --graph_def_file=unity/ml-agents/models/ppo-0/RoverLearning/frozen_graph_def.pb --input_arrays=vector_observation,epsilon,recurrent_in,sequence_length --output_arrays=action
2019-11-05 13:59:21.589574: I tensorflow/core/platform/cpu_feature_guard.cc:142] Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX2 FMA
2019-11-05 13:59:21.602134: I tensorflow/compiler/xla/service/service.cc:168] XLA service 0x7fe2bf9e7280 initialized for platform Host (this does not guarantee that XLA will be used). Devices:
2019-11-05 13:59:21.602151: I tensorflow/compiler/xla/service/service.cc:176] StreamExecutor device (0): Host, Default Version
Traceback (most recent call last):
File "/Users/dwright/anaconda3/envs/mlagents/bin/tflite_convert", line 8, in <module>
sys.exit(main())
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/tensorflow_core/lite/python/tflite_convert.py", line 515, in main
app.run(main=run_main, argv=sys.argv[:1])
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/tensorflow_core/python/platform/app.py", line 40, in run
_run(main=main, argv=argv, flags_parser=_parse_flags_tolerate_undef)
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/absl/app.py", line 299, in run
_run_main(main, args)
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/absl/app.py", line 250, in _run_main
sys.exit(main(argv))
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/tensorflow_core/lite/python/tflite_convert.py", line 511, in run_main
_convert_tf1_model(tflite_flags)
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/tensorflow_core/lite/python/tflite_convert.py", line 199, in _convert_tf1_model
output_data = converter.convert()
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/tensorflow_core/lite/python/lite.py", line 898, in convert
self._set_batch_size(batch_size=1)
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/tensorflow_core/lite/python/lite.py", line 1032, in _set_batch_size
shape = tensor.shape.as_list()
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/tensorflow_core/python/framework/tensor_shape.py", line 1171, in as_list
raise ValueError("as_list() is not defined on an unknown TensorShape.")
ValueError: as_list() is not defined on an unknown TensorShape.
我向lite.py添加了一些首次亮相消息，发现问题出在变量sequence_length
如果我将形状传递给这样的命令：
tflite_convert --output_file=model.tflite --graph_def_file=unity/ml-agents/models/ppo-0/RoverLearning/frozen_graph_def.pb --input_arrays=vector_observation,epsilon,recurrent_in,sequence_length --output_arrays=action --input_shapes=1,7:1,2:7,40:1
我收到类似的错误：
2019-11-05 14:25:44.658772: I tensorflow/core/platform/cpu_feature_guard.cc:142] Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX2 FMA
2019-11-05 14:25:44.677569: I tensorflow/compiler/xla/service/service.cc:168] XLA service 0x7fee79ed3960 initialized for platform Host (this does not guarantee that XLA will be used). Devices:
2019-11-05 14:25:44.677591: I tensorflow/compiler/xla/service/service.cc:176] StreamExecutor device (0): Host, Default Version
2019-11-05 14:25:44.741840: I tensorflow/core/grappler/devices.cc:60] Number of eligible GPUs (core count >= 8, compute capability >= 0.0): 0 (Note: TensorFlow was not compiled with CUDA support)
2019-11-05 14:25:44.741948: I tensorflow/core/grappler/clusters/single_machine.cc:356] Starting new session
2019-11-05 14:25:44.819310: I tensorflow/core/grappler/optimizers/meta_optimizer.cc:786] Optimization results for grappler item: graph_to_optimize
2019-11-05 14:25:44.819337: I tensorflow/core/grappler/optimizers/meta_optimizer.cc:788] constant_folding: Graph size after: 304 nodes (-81), 371 edges (-83), time = 56.212ms.
2019-11-05 14:25:44.819342: I tensorflow/core/grappler/optimizers/meta_optimizer.cc:788] constant_folding: Graph size after: 304 nodes (0), 371 edges (0), time = 8.713ms.
Traceback (most recent call last):
File "/Users/dwright/anaconda3/envs/mlagents/bin/tflite_convert", line 8, in <module>
sys.exit(main())
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/tensorflow_core/lite/python/tflite_convert.py", line 515, in main
app.run(main=run_main, argv=sys.argv[:1])
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/tensorflow_core/python/platform/app.py", line 40, in run
_run(main=main, argv=argv, flags_parser=_parse_flags_tolerate_undef)
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/absl/app.py", line 299, in run
_run_main(main, args)
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/absl/app.py", line 250, in _run_main
sys.exit(main(argv))
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/tensorflow_core/lite/python/tflite_convert.py", line 511, in run_main
_convert_tf1_model(tflite_flags)
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/tensorflow_core/lite/python/tflite_convert.py", line 199, in _convert_tf1_model
output_data = converter.convert()
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/tensorflow_core/lite/python/lite.py", line 983, in convert
**converter_kwargs)
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/tensorflow_core/lite/python/convert.py", line 449, in toco_convert_impl
enable_mlir_converter=enable_mlir_converter)
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/tensorflow_core/lite/python/convert.py", line 200, in toco_convert_protos
raise ConverterError("See console for info.\n%s\n%s\n" % (stdout, stderr))
tensorflow.lite.python.convert.ConverterError: See console for info.
2019-11-05 14:25:46.811578: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.811623: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.811639: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.811649: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.811675: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.811685: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.811695: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.811705: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.811986: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.812009: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.812022: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.812033: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.812378: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: TensorArrayV3
2019-11-05 14:25:46.812411: I tensorflow/lite/toco/import_tensorflow.cc:193] Unsupported data type in placeholder op: 20
2019-11-05 14:25:46.812433: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: TensorArrayV3
2019-11-05 14:25:46.812448: I tensorflow/lite/toco/import_tensorflow.cc:193] Unsupported data type in placeholder op: 20
2019-11-05 14:25:46.812468: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.812497: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: TensorArrayV3
2019-11-05 14:25:46.812507: I tensorflow/lite/toco/import_tensorflow.cc:193] Unsupported data type in placeholder op: 20
2019-11-05 14:25:46.812525: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.812544: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.812559: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.812567: I tensorflow/lite/toco/import_tensorflow.cc:193] Unsupported data type in placeholder op: 20
2019-11-05 14:25:46.812580: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.812588: I tensorflow/lite/toco/import_tensorflow.cc:193] Unsupported data type in placeholder op: 20
2019-11-05 14:25:46.812613: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: TensorArrayScatterV3
2019-11-05 14:25:46.812631: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.812640: I tensorflow/lite/toco/import_tensorflow.cc:193] Unsupported data type in placeholder op: 20
2019-11-05 14:25:46.812661: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: TensorArrayScatterV3
2019-11-05 14:25:46.812680: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.812694: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.812708: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.812724: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Enter
2019-11-05 14:25:46.812751: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: LoopCond
2019-11-05 14:25:46.812763: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: LoopCond
2019-11-05 14:25:46.812864: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: Exit
2019-11-05 14:25:46.812928: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: TensorArrayReadV3
2019-11-05 14:25:46.812951: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: TensorArraySizeV3
2019-11-05 14:25:46.813037: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: TensorArrayReadV3
2019-11-05 14:25:46.813111: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: TensorArrayGatherV3
2019-11-05 14:25:46.813301: I tensorflow/lite/toco/import_tensorflow.cc:659] Converting unsupported operation: TensorArrayWriteV3
2019-11-05 14:25:46.816417: I tensorflow/lite/toco/graph_transformations/graph_transformations.cc:39] Before Removing unused ops: 185 operators, 322 arrays (0 quantized)
2019-11-05 14:25:46.818204: I tensorflow/lite/toco/graph_transformations/graph_transformations.cc:39] After Removing unused ops pass 1: 103 operators, 180 arrays (0 quantized)
2019-11-05 14:25:46.819853: I tensorflow/lite/toco/graph_transformations/graph_transformations.cc:39] Before general graph transformations: 103 operators, 180 arrays (0 quantized)
2019-11-05 14:25:46.819987: F tensorflow/lite/toco/graph_transformations/propagate_fixed_sizes.cc:1616] Check failed: *packed_shape == shape All input arrays to Pack operators must have the same shape. Input "sequence_length" is different.
Fatal Python error: Aborted
Current thread 0x0000000111d5b5c0 (most recent call first):
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/tensorflow_core/lite/toco/python/toco_from_protos.py", line 52 in execute
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/absl/app.py", line 250 in _run_main
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/absl/app.py", line 299 in run
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/tensorflow_core/python/platform/app.py", line 40 in run
File "/Users/dwright/anaconda3/envs/mlagents/lib/python3.6/site-packages/tensorflow_core/lite/toco/python/toco_from_protos.py", line 89 in main
File "/Users/dwright/anaconda3/envs/mlagents/bin/toco_from_protos", line 8 in <module>
我们非常感谢您的帮助！