[GitHub] yajiedesign opened a new issue #13335: MXPredCreate lost dtype

[GitBox <gi...@apache.org>]

yajiedesign opened a new issue #13335: MXPredCreate lost dtype
URL: https://github.com/apache/incubator-mxnet/issues/13335
 
 
   ## Description
   when use MXPredCreate with int8.it will  Type inconsistent error.
    I find https://github.com/apache/incubator-mxnet/blob/master/src/c_api/c_predict_api.cc#L213 cause data dtype to lose.And then cause Type inconsistent.
   
   
   ## Environment info (Required)
   ----------Python Info----------
   Version      : 3.6.0
   Compiler     : MSC v.1900 64 bit (AMD64)
   Build        : ('default', 'Dec 23 2016 11:57:41')
   Arch         : ('64bit', 'WindowsPE')
   ------------Pip Info-----------
   Version      : 18.1
   Directory    : D:\Anaconda3\lib\site-packages\pip
   ----------MXNet Info-----------
   Version      : 1.3.1
   Directory    : G:\deeplearn\mxnet\python\mxnet
   Hashtag not found. Not installed from pre-built package.
   ----------System Info----------
   Platform     : Windows-10-10.0.17134-SP0
   system       : Windows
   node         : DEVEGA
   release      : 10
   version      : 10.0.17134
   
   Package used (Python/R/Scala/Julia):C api
   
   ## Build info (Required if built from source)
   
   Compiler (gcc/clang/mingw/visual studio):visual studio
   
   MXNet commit hash:
   017941e6ca177a15ec65d8bd35f7ccd20ef2b30d
   
   Build config:
   
   
   ## Error Message:
   Type inconsistent, Provided = float32, inferred type = int8
   
   ## Minimum reproducible example
   `  std::string json_file = "int8-symbol.json";
     std::string param_file = "int8-0000.params";
     BufferFile json_data(json_file);
     BufferFile param_data(param_file);
   
     mx_uint num_input_nodes = 1;
     const char* input_key[1] = { "data" };
     const char** input_keys = input_key;
   
   
     const mx_uint input_shape_indptr[2] = { 0,4 };
     const mx_uint input_shape_data[4] = { 1,static_cast<mx_uint>(3) ,static_cast<mx_uint>(1080),static_cast<mx_uint>(1920) };
   
     PredictorHandle pred_hnd = 0;
   
     int dev_type = 1;
     int dev_id = 1;
   
     MXPredCreate(
       static_cast<const char*>(json_data.GetBuffer()),
       static_cast<const char*>(param_data.GetBuffer()),
       static_cast<int>(param_data.GetLength()),
       dev_type,
       dev_id,
       num_input_nodes,
       input_keys,
       input_shape_indptr,
       input_shape_data,
       &pred_hnd);
   `
   
   

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