Avoid duplicate definition of atomicMin/Max for HIP

src/pystencils/include/gpu_defines.h

@@ -13,10 +13,11 @@ typedef __hip_uint16_t uint16_t;
 typedef __hip_int16_t int16_t;
 #endif
 
-#ifdef __CUDA_ARCH__
-// No direct implementation of atomic multiplication, minimum and maximum available
+// No direct implementation for all atomic operations available
 // -> add support by custom implementations using a CAS mechanism
 
+#if defined(__CUDA_ARCH__) || defined(__HIPCC_RTC__)
+
 // - atomicMul (double/float)
 //   see https://stackoverflow.com/questions/43354798/atomic-multiplication-and-division
 __device__ double atomicMul(double* address, double val) {
@@ -43,6 +44,10 @@ __device__ float atomicMul(float* address, float val) {
     return __int_as_float(old);
 }
 
+#endif
+
+#ifdef __CUDA_ARCH__
+
 // - atomicMin (double/float)
 //   see https://stackoverflow.com/questions/17399119/how-do-i-use-atomicmax-on-floating-point-values-in-cuda
 __device__ __forceinline__ double atomicMin(double *address, double val)
@@ -94,4 +99,5 @@ __device__ __forceinline__ float atomicMax(float *address, float val)
     }
     return __int_as_float(ret);
 }
+
 #endif