HydroChrono 0.3.1 – 5× faster radiation damping with Savitzky–Golay smoothing, SIMD & Linux fixes, and --profile support

HydroChrono 0.3.1 delivers major refactoring and performance improvements across hydrostatics and radiation damping, adds profiling and smoothing features, and introduces full Linux build support.

Highlights

• Refactored hydrostatics and radiation damping modules for clarity, safety, and maintainability
• Unified Eigen-only math backend; resolves vectorization/SIMD compatibility issues
• Refactored & Parallelized radiation damping convolution integral (5× faster)
• Added Savitzky–Golay smoothing and tapering for more stable convolution results
• New --profile flag for runtime performance breakdowns
• Auto-enable Irrlicht GUI when IrrlichtDir is configured
• Fixed and verified Linux builds

What’s new

• Core
  • Refactored hydrostatics and radiation damping code paths
  • Parallel convolution integral with Savitzky–Golay smoothing
  • Unified Eigen-only vectorization backend
• CLI
  • Added --profile flag for timing and performance reporting
• Build
  • Linux build support (tested on Ubuntu 22.04 / 24.04)
  • Updated build.ps1 with Irrlicht auto-detection and improved dependency handling

Install (Windows x64)

• Download HydroChrono-0.3.1-win64.zip
• Unzip; all required DLLs included (Chrono, HDF5, yaml-cpp, Irrlicht, MSVC)
• Run the regression tests:
  python .\tests\run_hydrochrono\run_tests.py --all