Confusion About LibTorch Binary Naming and ABI on "Get Started" Page

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Hey all,

I’m confused by the LibTorch binary naming and ABI labeling on the PyTorch “Get Started” page (https://pytorch.org/get-started/locally/). When selecting Linux and LibTorch with CUDA 12.6, the page provides the following:

  • Text: “Download here (cxx11 ABI)”

  • URL: https://download.pytorch.org/libtorch/cu126/libtorch-shared-with-deps-2.8.0%2Bcu126.zip

The flavor text indicates this is a C++11 ABI binary, but the filename does not include “cxx11-abi,” unlike other binaries, such as:

  • https://download.pytorch.org/libtorch/test/cpu/libtorch-cxx11-abi-shared-with-deps-latest.zip (linked here for example)

This inconsistency is confusing. I believe in older PyTorch versions, the libtorch-shared-with-deps filename typically indicated a Pre-cxx11 ABI binary, while libtorch-cxx11-abi-shared-with-deps was used for the C++11 ABI. Has the naming convention changed, or is the flavor text on the “Get Started” page incorrect? Is the libtorch-shared-with-deps-2.8.0+cu126.zip binary truly compiled with the C++11 ABI?

I’m using [GCC 9.3, and RL9] and would appreciate clarification on:

  1. Whether libtorch-shared-with-deps-2.8.0+cu126.zip is indeed a C++11 ABI binary.

  2. Any recommended steps to confirm the ABI of a LibTorch binary (e.g., via nm or a test program).

Thanks for any insights or confirmation!