問題文
A team's model relies on the accelerator's dedicated matrix units. They want a metric that shows whether those units are actually being exercised. Which metric answers that?
選択肢
- The number of kernel launches per second, since each matrix operation is one launch on the device.
- The power draw, since using the matrix units raises the device's power consumption by a noticeable amount.
- The overall accelerator utilization figure, because the activity of the matrix units is one of the components that goes into calculating it.
- The fraction of cycles the tensor pipe was active, reported as a dedicated profiling metric.