memsetAsync.h

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#ifndef HeterogeneousCore_CUDAUtilities_memsetAsync_h
#define HeterogeneousCore_CUDAUtilities_memsetAsync_h
 
#include "HeterogeneousCore/CUDAUtilities/interface/cudaCheck.h"
#include "HeterogeneousCore/CUDAUtilities/interface/device_unique_ptr.h"
 
#include <type_traits>
 
namespace cms {
  namespace cuda {
    template <typename T>
    inline void memsetAsync(device::unique_ptr<T>& ptr, T value, cudaStream_t stream) {
      // Shouldn't compile for array types because of sizeof(T), but
      // let's add an assert with a more helpful message
      static_assert(std::is_array<T>::value == false,
                    "For array types, use the other overload with the size parameter");
      cudaCheck(cudaMemsetAsync(ptr.get(), value, sizeof(T), stream));
    }
 
    template <typename T>
    inline void memsetAsync(device::unique_ptr<T[]>& ptr, int value, size_t nelements, cudaStream_t stream) {
      cudaCheck(cudaMemsetAsync(ptr.get(), value, nelements * sizeof(T), stream));
    }
  }  // namespace cuda
}  // namespace cms
 
#endif