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# api\_backend
Last update: 17.07.2025
1\#pragma once
2
3\#ifdef \_\_CUDA\_ARCH\_\_
4\#include <rocky20/cuda/cuda\_backend.hpp>
5\#else
6\#include <rocky20/device/omp\_backend.hpp>
7\#endif
8
9namespace backend
10{
11
12template <typename T>
13__host__ __device__ void atomic_add(T *address, T val)
14{
15\#ifdef \_\_CUDA\_ARCH\_\_
16 CudaBackend::AtomicAdd(address, val);
17\#else
18 OMPBackend::AtomicAdd(address, val);
19\#endif
20}
21
22template <typename T>
23__host__ __device__ void atomic_add(T *address, T val, T ¤t_value)
24{
25\#ifdef \_\_CUDA\_ARCH\_\_
26 CudaBackend::AtomicAdd(address, val, current_value);
27\#else
28 OMPBackend::AtomicAdd(address, val, current_value);
29\#endif
30}
31
32template <typename T>
33__host__ __device__ void atomic_max(T* address, T val)
34{
35\#ifdef \_\_CUDA\_ARCH\_\_
36 CudaBackend::AtomicMax(address, val);
37\#else
38 OMPBackend::AtomicMax(address, val);
39\#endif
40}
41
42}