alicera opened a new issue #18509:
URL: https://github.com/apache/incubator-mxnet/issues/18509


   cause;
   I convert mxnet model to onnx ,it is ok.
   But when I use 
   `onnx2trt *.onnx -o *.trt`
   the model is fail
   
   env :
   pip install mxnet-cu102
   pip install onnx==1.3.0  -i https://pypi.tuna.tsinghua.edu.cn/simple
   
   model ;
   
https://www.dropbox.com/s/akxeqp99jvsd6z7/model-MobileFaceNet-arcface-ms1m-refine-v1.zip?dl=0
   ref : https://github.com/deepinsight/insightface
   
   mxnet to onnx code;
   > `
   import mxnet as mx
   import numpy as np
   from mxnet.contrib import onnx as onnx_mxnet
   sym = './model/model-symbol.json'
   params = './model/model-0000.params'
   input_shape = (1,3,112,112)
   onnx_file = './mxnet_exported_mobileface.onnx'
   converted_model_path = onnx_mxnet.export_model(sym, params, [input_shape], 
np.float32, onnx_file)
   print("finish ")
   
   > `
   
   onnx2trt *.onnx -o *.trt
   Error;
   `
   Parsing model
   [2020-06-08 04:45:16   ERROR] (Unnamed Layer* 10) [Parametric ReLU]: slope 
tensor must be unidirectional broadcastable to input tensor
   [2020-06-08 04:45:16   ERROR] (Unnamed Layer* 10) [Parametric ReLU]: slope 
tensor must be unidirectional broadcastable to input tensor
   [2020-06-08 04:45:16   ERROR] (Unnamed Layer* 10) [Parametric ReLU]: slope 
tensor must be unidirectional broadcastable to input tensor
   While parsing node number 5 [Conv -> "conv_2_dw_conv2d"]:
   ERROR: /opt/onnx-tensorrt/builtin_op_importers.cpp:463 In function 
importConv:
   [8] Assertion failed: nbSpatialDims == kernel_weights.shape.nbDims - 2
   `


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