Fast data transfer to pynq buffer

Support
1

Hello,

I am using pynq 2.7 on an rfsoc4x2 board.

I need to transfer data to a pynq buffer that has been previously allocated.
I can do something like:

pynq_buffer[0:(grad_output.shape[0]*grad_output.shape[1])] = support_pynq_b

But it takes around 10 ms for 284032 data values.

I was wondering if there is any other way of doing this that is faster ? Thanks

2

try np.copyto(), it might give some improvement over slicing assignment:
np.copyto(dst=support_pynq_b, src=pynq_buffer[0:(grad_output.shape[0]*grad_output.shape[1])])