FlagFFT Release Notes

Contents

FlagFFT Release Notes#

v0.1.0#

Note

This is a preview release. The version number shown is a pre-release identifier and may change upon final release. Content in this preview is for reference only and does not constitute a commitment or warranty for the final product.

Initial release of FlagFFT.

  • Added Features

    • Experimental C++ FFT library with cuFFT-style C API.

    • Triton/TLE-generated CUDA kernels with JIT compilation at plan creation time.

    • 1D Complex-to-Complex — C2C, Z2Z (complex64 and complex128).

    • 1D Real-to-Complex — R2C, D2Z (float and double).

    • 1D Complex-to-Real — C2R, Z2D (float and double).

    • 1D Roundtrip — R2C+C2R, D2Z+Z2D roundtrip transforms.

    • 2D FFT — C2C, Z2Z, R2C, D2Z, C2R, Z2D for 2D transforms.

    • Arbitrary-length contiguous rank-1 batched transforms.

    • Fused four-step route support for very large composite lengths.

    • Bluestein fallback for arbitrary 1D complex lengths.

    • Native CLI (flagfft-cli) for benchmark measurement and plan inspection.

    • C++ test suite with Google Test and cuFFT reference comparison.

    • Python benchmark suite with pytest-based performance measurement.

    • Unified test runner (tools/run_tests.py) with accuracy and performance reporting.

    • Plan description API (flagfftGetPlanDescription) for performance debugging.

    • Docker development environment with pre-built dependencies.

    • Operator registry (conf/operators.yaml) with full operator metadata.

Contents