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에 방어 적이기 장치, 여기에 내 코드내가 cudaMemcpy를 사용하여 장치 메모리에 데이터를 복사 할 장치 오류
unsigned char* red_src ;
unsigned char* blue_src ;
unsigned char* green_src;
checkCudaErrors(cudaMalloc(&red_src, sizeof(unsigned char) * numRowsSource * numColsSource));
checkCudaErrors(cudaMalloc(&blue_src, sizeof(unsigned char) * numRowsSource * numColsSource));
checkCudaErrors(cudaMalloc(&green_src, sizeof(unsigned char) * numRowsSource * numColsSource));
//bla bla ..........
//initialization
compute_g<<<grid, block>>>(red_src, strictInteriorPixels,g_red, numRowsSource, numColsSource);
compute_g<<<grid, block>>>(blue_src, strictInteriorPixels,g_blue, numRowsSource, numColsSource);
compute_g<<<grid, block>>>(green_src, strictInteriorPixels,g_green, numRowsSource, numColsSource);
float *blendedValsRed_1 ;
float *blendedValsRed_2 ;
//set memory
checkCudaErrors(cudaMalloc(&blendedValsRed_1, sizeof(float) * numRowsSource * numColsSource));
checkCudaErrors(cudaMalloc(&blendedValsRed_2, sizeof(float) * numRowsSource * numColsSource));
checkCudaErrors(cudaMemcpy(blendedValsRed_1, red_src, sizeof(float) * numRowsSource * numColsSource,cudaMemcpyDeviceToDevice));
checkCudaErrors(cudaMemcpy(blendedValsRed_2, red_src, sizeof(float) * numRowsSource * numColsSource,cudaMemcpyDeviceToDevice));
는 컴파일,하지만 난 그것을 실행하려고 할 때 cudaMemcpy
에 오류가있어 CUDA, 그 말 :
tintin ~/programming/cs344/Problem Sets/Problem Set 6 $ optirun ./HW6 source.png destination.png
CUDA error at: student_func.cu:365
invalid argument cudaMemcpy(blendedValsRed_1, red_src, sizeof(float) * numRowsSource * numColsSource,cudaMemcpyDeviceToDevice)
누구나 도움, 고마워!