CUDA cudaDeviceSynchronize complete錯誤代碼參考？

Question

我得到「CudaDeviceSynchronize返回錯誤代碼75運行一些內核後」

（聽起來像一些簡單的失蹤在我的代碼）

但我沒能找到任何參考/ Q &關於該代碼和cuda-memcheck ony的主題涉及其他錯誤，而不是生成錯誤代碼75的錯誤。

我想知道是否有任何CUDA內置函數來描述此代碼？

或列出錯誤代碼的任何官方/非官方（在線）參考？

謝謝！ :)

Answer 1

1. 在cuda doc中查找函數。 CudaDeviceSynchronize描述here爲：

__host__ ​ __device__ ​cudaError_t cudaDeviceSynchronize (void)

所以你的錯誤代碼75是cudaError_t類型。

查找cudaError_t在cuda頭文件中定義枚舉。它在include/driver_types.h。並得到了錯誤75

：

/** 
* While executing a kernel, the device encountered an instruction 
* which can only operate on memory locations in certain address spaces 
* (global, shared, or local), but was supplied a memory address not 
* belonging to an allowed address space. 
* The context cannot be used, so it must be destroyed (and a new one should be created). 
* All existing device memory allocations from this context are invalid 
* and must be reconstructed if the program is to continue using CUDA. 
*/ 
cudaErrorInvalidAddressSpace   =  75,