Module dispatch 

Kernel dispatch for pure Rust SIMD implementations.

Provides wrappers around optimized Rust SIMD kernels from the simd module. Uses runtime CPU detection to select optimal code path.

Migration from C++ FFI

This module previously used C++ SIMD kernels via FFI. It has been migrated to pure Rust implementations in the simd module, providing:

• Unified toolchain (no C++ compiler needed)
• Cross-function inlining
• Better error messages and debugging
• cargo miri support for undefined behavior detection

Re-exports

pub use crate::simd::dispatch::CpuFeatures;

pub use crate::simd::dispatch::SimdLevel;

Structs

BpsScanDispatcher

BPS scan dispatcher - uses pure Rust SIMD implementations.

DotI8Dispatcher

int8 dot product dispatcher - uses pure Rust SIMD implementations.

VisibilityDispatcher

SIMD-accelerated batch visibility checking for MVCC snapshots.

Functions

cpu_features

Get detected CPU features (cached)

dispatch_info

Get dispatch info for debugging (runtime detection).

simd_available

Check if SIMD kernels are available (runtime detection).

simd_level

Get best available SIMD level