Release Notes

This section includes significant changes, new features, performance improvements, and various issues. Unless noted, listed issues should not impact functionality. When functionality is impacted, we offer a work-around to avoid the issue (if available).

1.1.1

cuFFTDx patch update to accommodate cuBLASDx EA 0.1.0 release.

New Features

  • Added 2D and 3D FFT examples.

  • cuFFTDx now depends on commonDx headers. commonDx includes private tools and types that all Dx libraries use.

Resolved Issues

  • Disabled runtime CUDA block dimensions assertions (using assert()) in execute() methods by default. In previous versions they are disabled only when NDEBUG (defined by CMake in Release mode) or CUFFTDX_DISABLE_RUNTIME_ASSERTS are defined, or when compilation is done by NVRTC. Keeping assertions could result in performance penalty. Now, user has to define CUFFTDX_ENABLE_RUNTIME_ASSERTS to enable them.

Known Issues

  • Since CUDA Toolkit 12.2 NVCC compiler in certain situation reports incorrect compilation error when value_type type of FFT description type is used. The problematic code with possible workarounds are presented below:

    // Any FFT description type
    using FFT = decltype(Size<128>() + Precision<float>() + Type<fft_type::r2c>() + Block() + SM<700>());
    using complex_type = typename FFT::value_type; // compilation error
    
    // Workaround #1
    using complex_type = typename decltype(FFT())::value_type;
    
    // Workaround #2 (used in cuFFTDx examples)
    template <typename T>
    using value_type_t = typename T::value_type;
    
    using complex_type = value_type_t<FFT>;
    

1.1.0

The first release of cuFFTDx library with support for Hopper and Ada architectures.

New Features

Known Issues

  • Compiling using MSVC as CUDA host compiler requires enabling __cplusplus (/Zc:__cplusplus). In order to do so, pass -Xcompiler "/Zc:__cplusplus" as an option to NVCC (NVCC: Options for Passing Specific Phase Options).

  • When compiling using MSVC as CUDA host compiler please be aware of the limit on the length of mangled names and other compiler limits which in extreme cases can result in calling incorrect instances of kernel templates involving cuFFTDx.

1.0.0

The first general availability (GA) release of cuFFTDx library.

New Features

Resolved Issues

  • ptxas warning program uses 32-bit address on line XXX which is conflicting with .address_size 64 shouldn’t appear anymore.

0.3.1

The last early access (EA) release of cuFFTDx library.

Known Issues

  • ptxas warning about pointer size conflict:

    ptxas warning : Program uses 32-bit address on line 'XXX' which is conflicting with .address_size 64
    

    This warning may appear when compiling, but it does not impact functionality or performance.