SIMP_mapping_kernel.h

/*
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#ifndef __NEKO_HIP_SIMP_MAPPING_KERNELS__
#define __NEKO_HIP_SIMP_MAPPING_KERNELS__
 
template <typename T>
__global__ void SIMP_mapping_apply_kernel(
    const T f_min, const T f_max, const T p, T* __restrict__ X_out_d,
    T* __restrict__ X_in_d, const int n) {
 
    const int idx = blockIdx.x * blockDim.x + threadIdx.x;
    const int str = blockDim.x * gridDim.x;
 
    for (int i = idx; i < n; i += str) {
        X_out_d[i] = f_min + (f_max - f_min) * pow(X_in_d[i], p);
    }
}
 
template <typename T>
__global__ void SIMP_mapping_apply_backward_kernel(
    const T f_min, const T f_max, const T p, T* __restrict__ sens_out_d,
    T* __restrict__ sens_in_d, T* __restrict__ X_in_d, const int n) {
 
    const int idx = blockIdx.x * blockDim.x + threadIdx.x;
    const int str = blockDim.x * gridDim.x;
 
    for (int i = idx; i < n; i += str) {
        sens_out_d[i] = sens_in_d[i] * 
        (f_max - f_min) * p * pow(X_in_d[i], p - 1.0);
    }
}
 
#endif // __NEKO_CUDA_SIMP_MAPPING_KERNELS__