[GitHub] [incubator-mxnet] sxjscience commented on issue #17638: [Numpy] unknown type_flag=7

[GitBox]

sxjscience commented on issue #17638: [Numpy] unknown type_flag=7
URL: 
https://github.com/apache/incubator-mxnet/issues/17638#issuecomment-589367294
 
 
   ```python
   import mxnet as mx
   import numpy as np
   import os
   from numpy.testing import assert_allclose
   from mxnet.gluon import HybridBlock
   mx.npx.set_np()
   
   os.environ['DMLC_LOG_STACK_TRACE_DEPTH'] = '30'
   
   class Foo(HybridBlock):
       def __init__(self, prefix=None, params=None):
           super(Foo, self).__init__(prefix=prefix, params=params)
   
       def hybrid_forward(self, F, valid_length):
           mask = (F.np.ones((10,)) < valid_length).astype(np.float32)
           return mask
   
   foo = Foo()
   foo.hybridize()
   out = foo(mx.np.ones((10,), ctx=mx.gpu()))
   print(out)
   ```
   
   ```
   MXNetError: Traceback (most recent call last):
     [bt] (12) libmxnet.so(MXInvokeCachedOpEx+0x60) [0x7fce362ab420]
     [bt] (11) libmxnet.so(MXInvokeCachedOp+0x42e) [0x7fce362aad4e]
     [bt] (10) 
libmxnet.so(mxnet::CachedOp::Forward(std::shared_ptr<mxnet::CachedOp> const&, 
std::vector<mxnet::NDArray*, std::allocator<mxnet::NDArray*> > const&, 
std::vector<mxnet::NDArray*, std::allocator<mxnet::NDArray*> > const&)+0xc77) 
[0x7fce36421d27]
     [bt] (9) libmxnet.so(mxnet::CachedOp::DynamicForward(mxnet::Context 
const&, std::vector<mxnet::NDArray*, std::allocator<mxnet::NDArray*> > const&, 
std::vector<mxnet::NDArray*, std::allocator<mxnet::NDArray*> > const&, 
bool)+0x20c) [0x7fce3641973c]
     [bt] (8) 
libmxnet.so(mxnet::CachedOp::SetForwardGraph(mxnet::CachedOp::GraphInfo*, bool, 
std::vector<mxnet::NDArray*, std::allocator<mxnet::NDArray*> > const&)+0x965) 
[0x7fce36418525]
     [bt] (7) libmxnet.so(mxnet::imperative::MXPlanMemory(nnvm::Graph*, 
std::vector<int, std::allocator<int> >&&, std::vector<unsigned int, 
std::allocator<unsigned int> > const&, std::__cxx11::basic_string<char, 
std::char_traits<char>, std::allocator<char> > const&, std::pair<unsigned int, 
unsigned int> const&, std::pair<unsigned int, unsigned int> const&, 
bool)+0x1e8) [0x7fce3642f598]
     [bt] (6) libmxnet.so(nnvm::ApplyPass(nnvm::Graph, 
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > 
const&)+0x213) [0x7fce362d0ab3]
     [bt] (5) libmxnet.so(nnvm::ApplyPasses(nnvm::Graph, 
std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, 
std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, 
std::char_traits<char>, std::allocator<char> > > > const&)+0xecd) 
[0x7fce3a0b87bd]
     [bt] (4) libmxnet.so(std::_Function_handler<nnvm::Graph (nnvm::Graph), 
nnvm::Graph (*)(nnvm::Graph)>::_M_invoke(std::_Any_data const&, 
nnvm::Graph&&)+0x10a) [0x7fce365e6b9a]
     [bt] (3) libmxnet.so(+0x1f279d0) [0x7fce366169d0]
     [bt] (2) libmxnet.so(+0x1f26a6e) [0x7fce36615a6e]
     [bt] (1) libmxnet.so(+0x1f2424d) [0x7fce3661324d]
     [bt] (0) libmxnet.so(dmlc::LogMessageFatal::~LogMessageFatal()+0x72) 
[0x7fce3622b982]
     File "../src/nnvm/plan_memory.cc", line 58
   MXNetError: unknown type_flag=7
   ```

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