chore: bump pytorch to 2.6.0

[njzjz]

Summary by CodeRabbit

• Dependency Updates
  • Updated PyTorch and libtorch library versions from 2.5.0 to 2.6.0
  • Modified download links and version references across development and build configurations
  • Added import for torch._dynamo in test module

Copilot reviewed 2 out of 3 changed files in this pull request and generated no comments.

Files not reviewed (1)

• .devcontainer/download_libtorch.sh: Language not supported

[coderabbitai]

📝 Walkthrough

Walkthrough

This pull request updates the PyTorch and libtorch library versions from 2.5.0 to 2.6.0 across multiple files. The changes include modifications to the download script, GitHub workflow configuration, and backend Python script to ensure consistency in library versions. The updates specifically target the installation and requirements for CUDA and Linux x86_64 environments.

Changes

File	Change Summary
.devcontainer/download_libtorch.sh	Updated wget URL from libtorch 2.5.0 to 2.6.0
.github/workflows/test_cuda.yml	Updated torch package and libtorch download link to version 2.6.0; modified mpi4py installation command to include --reinstall-package deepmd-kit
backend/find_pytorch.py	Updated pt_version from "2.5.0" to "2.6.0" for CUDA 12.2 environment
source/tests/pt/__init__.py	Added import statement for torch._dynamo

Possibly related PRs

• breaking(pt): drop PyTorch 2.0 support #4383: The changes in the main PR and this PR are related through modifications to the get_pt_requirement function in the backend/find_pytorch.py file, specifically regarding the handling of PyTorch version requirements.
• ci: bump TF to 2.18, PT to 2.5 #4228: The changes in the main PR, which update the version of the libtorch library to 2.6.0, are related to the modifications in this PR that also update the version of the libtorch library in the same workflow file.

Suggested reviewers

• wanghan-iapcm

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📥 Commits

Reviewing files that changed from the base of the PR and between 179303e and 8925d3a.

📒 Files selected for processing (1)

• .github/workflows/test_cuda.yml (2 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• .github/workflows/test_cuda.yml

⏰ Context from checks skipped due to timeout of 90000ms (19)

• GitHub Check: Build wheels for cp310-manylinux_aarch64
• GitHub Check: Build wheels for cp311-win_amd64
• GitHub Check: Test Python (2, 3.12)
• GitHub Check: Build wheels for cp311-macosx_arm64
• GitHub Check: Build C++ (clang, clang)
• GitHub Check: Build C++ (rocm, rocm)
• GitHub Check: Build wheels for cp311-macosx_x86_64
• GitHub Check: Test Python (2, 3.9)
• GitHub Check: Build wheels for cp311-manylinux_x86_64
• GitHub Check: Test Python (1, 3.12)
• GitHub Check: Build C++ (cuda120, cuda)
• GitHub Check: Build C++ (cuda, cuda)
• GitHub Check: Build wheels for cp311-manylinux_x86_64
• GitHub Check: Test C++ (false)
• GitHub Check: Build C library (2.14, >=2.5.0rc0,<2.15, libdeepmd_c_cu11.tar.gz)
• GitHub Check: Test Python (1, 3.9)
• GitHub Check: Build C++ (cpu, cpu)
• GitHub Check: Build C library (2.18, libdeepmd_c.tar.gz)
• GitHub Check: Test C++ (true)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.60%. Comparing base (1c6ed20) to head (8925d3a).
Report is 1 commits behind head on devel.

Additional details and impacted files

@@            Coverage Diff             @@
##            devel    #4575      +/-   ##
==========================================
- Coverage   84.61%   84.60%   -0.01%     
==========================================
  Files         680      680              
  Lines       64467    64467              
  Branches     3538     3539       +1     
==========================================
- Hits        54546    54545       -1     
  Misses       8780     8780              
- Partials     1141     1142       +1     

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