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感谢回复,我在运行上述代码的时候已经使用了CUDA_LAUNCH_BLOCKING=1。我会进行进一步check,看cudaMemset函数在遇到NULL指针时是否会提示argument invalid。
另外我有一个话题之外的疑问:不使用CUDA_LAUNCH_BLOCKING=1的时候,报错信息可能并不准确。我个人理解是由于主机和设备或者不同核函数之间的不同步导致的,比如当某个核函数报错的时候,主机代码运行到了另外的地方,所以此时的报错信息就错误的指向了主机代码正在运行的地方。
请问您 我的这一理解是否准确?我查找过书中关于CUDA stream的章节,可惜并没有找到相关知识。
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