Module gpu_sph_pressure 

GPU SPH pressure solver (CPU mock backend).

Implements the Smoothed Particle Hydrodynamics pressure and viscosity force computation pipeline using Poly6, Spiky, and Viscosity kernels. The GPU dispatch is mocked by plain Rust loops for portability.

Structs

GpuSphPressureSolver

GPU SPH pressure solver holding all per-particle state.

GpuSphStats

Statistics computed from the pressure solver state.

Functions

kernel_poly6

Poly6 SPH kernel: W_poly6(r, h).

kernel_spiky_grad

Gradient of the Spiky kernel: ∇W_spiky(r_vec, r, h).

kernel_viscosity_laplacian

Viscosity kernel Laplacian: ∇²W_visc(r, h).

pcisph_gpu_correction

PCISPH pressure correction loop.

wcsph_tait_eos

WCSPH Tait equation of state.