Developer Guide

• Architecture
  • Overview
  • Module structure
  • Design principles
  • Kernel classification
  • IO architecture
  • Dependency direction
• GPU Kernels
  • Kernel source files
  • CCL (Connected Component Labeling)
  • Focal convolution
  • Morphology
  • Polygonize (Marching Squares)
  • Kernel conventions
• Testing
  • Running tests
  • Test structure
  • GPU test marker
  • Test patterns
  • Linting
  • CI
• Design Decisions
  • 1. Standalone package via namespace extension
  • 2. Drop cuCIM – custom CCCL kernels for labeling
  • 3. OwnedRasterArray follows OwnedGeometryArray pattern
  • 4. No new KernelClass values needed
  • 5. Raster crossover thresholds are very low
  • 6. Raster IO is HYBRID (with GPU_NATIVE alternative)
  • 7. Standalone function API surface
  • 8. No xarray core dependency
  • 9. GPU-Native Raster IO via nvImageCodec
• vibespatial Core Integration
  • Core modules used
  • Core changes required in vibespatial
  • Module structure