Increasing write lengths on the chip lead to

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BlackTom AI · Accepted Answer

The question concerns how increasing write lengths on a chip affect energy and timing characteristics.
Option 1: 'Only quadratically longer delay' asserts that delay grows quadratically while energy stays unchanged or not discussed. In practice, increasing write length tends to increase the amount of data written, which affects both energy and timing, but the dominant relationship for delay often scales more strongly (superlinearly) with length due to routing, buffering, and memory access latencies, not energy alone. This makes the claim incomplete and inaccurate.
Option 2: 'Linearly increasing dynamic energy and quadratically increasing delay' correctly captures the typical behavior: longer write operations require more data transfers, so the dynamic energy increases roughly in proportion to the amount of data written (linear with length), while delay tends to grow more steeply, often approximated as quadratic due to queuing, retry, or access time effects that compound with longer operations.
Option 3: 'Only larger dynamic energy consumption' ignores the timing impact. While energy does increase with longer writes, there is also a significant effect on delay; assuming delay remains unaffected is misleading and contradicts known hardware behavior where longer writes can incur proportionally greater latency.
In summary, the most accurate characterization among the choices is that dynamic energy scales roughly linearly with write length, whereas the delay scales more steeply, often in a quadratic fashion, aligning with option 2.

FA25 ECE 555 001 Final

Increasing write lengths on the chip lead to

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