Forums - Failed to convert the tensorflow model to dlc with SNPE tool

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Failed to convert the tensorflow model to dlc with SNPE tool
qi.yao
Join Date: 5 Dec 17
Posts: 1
Posted: Wed, 2017-12-06 19:35
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Hi, 

We are using SNPE1.8.0 SDK now and trying to convert the tensorflow model to DLC, then port to Android device.

We try serveral network models including inceptionV3, MTCNN model and others. Some ones are OK, we can manager to convert these models into DLC format, like inceptionV3, but some of others are not, we got the errors like:

snpe-tensorflow-to-dlc --graph MTCNN.pb  \
--input_dim  pnet/input 12,12,3 --out_node pnet/conv4-2/BiasAdd --out_node pnet/prob1 \
--input_dim  rnet/input 24,24,3 --out_node rnet/conv5-2/conv5-2 --out_node rnet/prob1 \
--input_dim  onet/input 48,48,3 --out_node onet/conv6-2/conv6-2 --out_node onet/conv6-3/conv6-3 \
--dlc mtcnn.dlc --allow_unconsumed_nodes --verbose
 
After running the command above, then we got information showing blow, it shows conversion failed.
 
2017-12-05 15:43:30,492 - 308 - WARNING - WARNING_TF_SCOPE_OP_NOT_CONSUMED: Operation (Classifer/sscore/BiasAdd) not consumed by converter: BiasAdd.
2017-12-05 15:43:30,748 - 393 - INFO - INFO_ALL_BUILDING_LAYER_W_NODES: Building layer (Convolution) with nodes: [u'conv0/Conv2D']
2017-12-05 15:43:30,757 - 393 - INFO - INFO_ALL_BUILDING_LAYER_W_NODES: Building layer (Convolution) with nodes: [u'convBlock-1/conv1/Conv2D']
2017-12-05 15:43:30,766 - 393 - INFO - INFO_ALL_BUILDING_LAYER_W_NODES: Building layer (Concatenation) with nodes: [u'sizeMap/concat']
2017-12-05 15:43:30,774 - 123 - ERROR - Conversion failed: ERROR_TF_CONCAT_INPUT: Concatenation layer requires at least two inputs.
 
Do you have any idea? 
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Re: Failed to convert the tensorflow model to dlc with SNPE tool
dmarques
Join Date: 15 Sep 17
Posts: 27
Posted: Thu, 2017-12-07 11:06
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Make sure that the operation "sizeMap/concat" inputs from the tensorflow graph are being converted as part of a layer. You seem to have a bias add operation not being converted properly as per:

2017-12-05 15:43:30,492 - 308 - WARNING - WARNING_TF_SCOPE_OP_NOT_CONSUMED: Operation (Classifer/sscore/BiasAdd) not consumed by converter: BiasAdd.

 

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