c++ - cudaMalloc()是否将数组初始化为0？

Question

或者，如果我想确保数组包含全0，是否需要执行cudaMemset()？我在文档中找不到它。
谢谢。

Answer 1

cudaMalloc documentation说:

Allocates size bytes of linear memory on the device and returns in *devPtr a pointer to the allocated memory. The allocated memory is suitably aligned for any kind of variable. The memory is not cleared.

因此，您将需要cudaMemset来初始化内存。