CUDA cudaDeviceSynchronize完成错误代码参考？

Question

我收到“ CudaDeviceSynchronize在运行 某些 内核后返回错误代码75”

（听起来像我的代码中缺少的东西）

但是我没有找到任何关于该代码的参考/ Q＆amp; A / Topic，而cuda-memcheck ony引用了其他错误，而不是生成错误代码75的错误。

我想知道是否有任何CUDA内置函数来描述这段代码？

或列出错误代码的任何官方/非官方（在线）参考？

谢谢！ ：）

Answer 1

1. 在cuda doc中找到该功能。 CudaDeviceSynchronize被描述为here：

__host__ ​ __device__ ​cudaError_t cudaDeviceSynchronize ( void )

1. 因此，您的错误代码75的类型为cudaError_t。

2. 在cuda标头中查找cudaError_t枚举定义。它位于include/driver_types.h。并得到错误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,