How do I set the buffer value to zero?

Question

after I memory copy the value from GPU to CPU, how do I set the value to 0 with the same length? For example, cpubuff here.
cudaMemcpyAsync(
      (void*) cpubuff_, 
      (const void *) src_, 
      (size_t) buflen_, 
      (cudaMemcpyKind) cudaMemcpyDeviceToHost, 
      (cudaStream_t) *stream)

javascripting.dev · Answer

If you want to zero out a buffer on the host, then you can call memset.
memset(cpubuff_, 0, buflen_);

Assuming you don't need the async functionality.

How do I set the buffer value to zero?

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