Full example for MxNet #332
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Sure, contributions are welcome! If you try to port that code, but are having issues, please let me know, thanks! |
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I tried some simple code, but had jvm crashed: SymbolHandle sym_h = new SymbolHandle();
MXSymbolCreateVariable("X", new PointerPointer(sym_h));
MXSymbolFree(sym_h);Is there any problem in the code? The error log: |
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I don't know, could you also provide the code in C that you are trying to port? |
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BTW, if you have a working build for Windows, please consider making a contribution and send a pull request for that! Alternatively, you could collaborate with @Neiko2002 and his pull request #309. Thanks |
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The cpp code is from https://github.com/dmlc/MXNet.cpp/blob/master/example/mlp.cpp auto sym_x = Symbol::Variable("X");
The definition of Symbol in "mxnet-cpp/symbol.hpp":
/*! \brief handle to a symbol that can be bind as operator */
typedef void *SymbolHandle;
......
Symbol::Symbol(SymbolHandle handle) {
blob_ptr_ = std::make_shared<SymBlob>(handle);
}
Symbol::Symbol(const char *name) {
SymbolHandle handle;
CHECK_EQ(MXSymbolCreateVariable(name, &(handle)), 0);
blob_ptr_ = std::make_shared<SymBlob>(handle);
}
Symbol::Symbol(const std::string &name) : Symbol(name.c_str()) {}
Symbol Symbol::Variable(const std::string &name) { return Symbol(name); }The MXSymbolCreateVariable is in mxnet C API. |
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It looks like what you want to do is this then: SymbolHandle sym_h = new SymbolHandle();
MXSymbolCreateVariable("X", sym_h);
MXSymbolFree(sym_h); |
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Hum, it looks like that declaration is missing. |
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Yes, that's what I really want, I'll test it when it fixed. |
saudet
added a commit
that referenced
this issue
Dec 18, 2016
* Add functions missing from the presets of MXNet (issue #332)
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Ok, I've fixed the issue in the commit above. Let me know if you encounter any other issues and thanks for looking into this! |
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Thanks! I'll try it. |
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Could you please check these code: SymbolHandle sym = new SymbolHandle(); I got jvm crashed. Again, is there any problem in the code? |
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Did you try with new PointerPointer(num) and num > 0?
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My mistake, I should use a real Symbol. I'll keep going with other functions. |
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@yunge Have you made any progress? Is it working well now with MXNet 1.0.0? Or are there remaining issues? |
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@saudet Hi, I don't use javacpp now. |
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@yunge What are you using these days? |
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@saudet I use python api directly. |
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Current MxNet example is just show how to do prediction, please add some example code for creating model & training, thanks.
MxNet has full featured cpp examples, such as
https://github.com/dmlc/MXNet.cpp/blob/master/example/mlp.cpp
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