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Posted to dev@tvm.apache.org by Sunghyun Park <no...@github.com.INVALID> on 2022/09/29 01:18:06 UTC

Re: [apache/tvm] RFC: initial stab at TorchScript fallback (#7401)

Hi, @t-vi. Thank you for the great contribution! This seems very interesting. 
I'm trying to check out this feature but having some ABI link issue during setup - `ld.lld: error: undefined symbol`.
This seems like a known issue ([link](https://github.com/pytorch/pytorch/issues/13541#issuecomment-727515849)), so I followed their suggestion of adding `-D_GLIBCXX_USE_CXX11_ABI=0"`. 
However, this change makes TVM llvm codegen fails with ABI link. 
Have you faced this issue before? 
I'm wondering what will be the general guideline to fix such ABI conflicts. 
Thank you!

For more detailed info, I installed pytorch package with conda and downloaded prebuilt binary by following the [instruction](https://pytorch.org/cppdocs/installing.html).
Then, I modified my `config.make` to `set(USE_LIBTORCH ~/libtorch)`.

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