a question about num_read

Hello, I have a question regarding the use of num_reads. When one calls DWaveSampler.sample_qubo with numreads > 1, what is the schedule that the QPU uses for sampling the different reads? Is there a re-initialization of the qubits before proceeding to the next sampling or does the next sampling start from the point where the previous finished? Would this latter choice imply that two samples are somehow correlated? In practice, is there any difference in running DWaveSampler.sample_qubo once with numreads = 1000 and running it 10 times with num_reads=100?



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