This is the release note of v10.3.0. See here for the complete list of solved issues and merged PRs.

We are running a Gitter chat for general discussions and quick questions. Feel free to join the channel to talk with developers and users!

Notice (2022-04-08)

We have published a hot-fix release v10.3.1 which addresses a regression that prevents CuPy from working in older CUDA GPUs (Maxwell or earlier).

Highlights

Support for CUDA 11.6

Full support for CUDA 11.6 has been added as of this release. Binary packages are available in PyPI and can be installed with the following command: pip install cupy-cuda116

Support for ROCm 5.0

Full support for ROCm 5.0 has been added as of this release. Binary packages are available in PyPI and can be installed with the following command: pip install cupy-rocm-5-0

Changes

Enhancements

• Support ROCm 5.0 (#6496)
• Support cuSPARSELt 0.2.0 (repost) (#6507)
• Update cupy.array_api (#6550)
• Fix cupy.copyto to take NumPy array scalars (#6593)
• Fix for supporting ROCm 5.0 (#6599)
• Make einsum accept subscripts in numpy int (#6516)

Bug Fixes

• Fix error message in vectorize (#6515)
• Fix cupy.cumsum on ROCm 5.0 (#6525)
• Fix coo_matrix.diagonal (#6533)
• Fix out args parser of ufunc (#6547)
• Fix cupy.fill to properly take zero-dim cupy.ndarray (#6548)
• Fix cuSPARSELt 0.1.0 support in v10 (#6563)
• Fix may_share_memory algorithm (#6565)
• Avoid using the same kernel from different devices in JIT (#6581)
• Fix array creation shape (#6592)
• Fix cupy.full and cupy.full_like to make unsafe casting (#6595)
• Fix device context management in MemoryAsyncPool (#6596)

Code Fixes

• mypy: array_api (#6552)

Documentation

• Remove description about issues from contribution guide (#6542)
• Fix documents for CUDA 11.6 (#6543)

Installation

• Remove CUPY_SETUP_ENABLE_THRUST=0 environment variable (#6488)
• Skip appending --compiler-bindir if cl.exe is already on PATH (#6514)
• Bump version to v10.3.0 (#6602)

Tests

• Ignore warnings from Optuna 3.0 pre-releases (#6490)
• Disable CentOS 8 test (#6519)
• Add FlexCI projects for Windows (#6540)
• Skip async_malloc tests on unsupported device (#6544)
• CI: Trigger push event of FlexCI via GitHub Actions (#6554)
• CI: regenerate matrix (#6557)
• CI: Fix rule name in dispatcher (#6558)
• CI: Fix event name in dispatcher (#6559)
• Fix flaky test_inverse_indices_shape (#6573)
• Trigger CUDA 11.6 Windows CI when push/pull-request (#6578)

Contributors

The CuPy Team would like to thank all those who contributed to this release!

@anaruse @asi1024 @kmaehashi @leofang @Onkar627 @takagi @toslunar @tushxr16