Question: CUDA C + + is a C + + based language to code GPU programs. To let a CUDA program access data, you have to

CUDA C++ is a C++ based language to code GPU programs. To let a CUDA program access data, you have to call: cudaMalloc() and cudaMemcpy(). The former allocates a memory space in GPU memory. What does the latter do? How can DMA contribute to this operation?

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