Mycelial Signal Flux (Σ-MSF)

#include <cuda_runtime.h>
#include <device_launch_parameters.h>

/**
 * Mycelial Signal Flux (Σ-MSF)
 * Core: Non-Linear Nutrient Routing for Bypassing Commercial Hubs
 */
__global__ void sigma_msf_kernel(float* nutrient_map, float* signal_flux, int n, float diffusion_constant) {
    int idx = blockIdx.x * blockDim.x + threadIdx.x;
    
    if (idx > 0 && idx < n - 1) {
        // Calculate the Gradient (del) of Nutrient Concentration (STEM-Truth)
        float grad_nutrient = (nutrient_map[idx+1] - nutrient_map[idx-1]) / 2.0f;
        
        // Flux_J = -D * grad(Nutrient)
        // This pulls the attention toward high-integrity data nodes (WIPO/USPTO)
        signal_flux[idx] = -diffusion_constant * grad_nutrient;
        
        // Mycelial Branching: If the flux is below the Truth-Signal Threshold, prune
        if (abs(signal_flux[idx]) < 0.1618f) { // Inverse Phi Barrier
            signal_flux[idx] = 0.0f; // Metabolic Pruning
        }
    }
}