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Future Trends

Transistors are being made smaller and leakage current is going up. DARK SILICON: we can no longer turn on all of the chip: perhaps one tenth maximum for today's 22~nm chips. Even less in the future.

Slow, bulky power transistors will turn thousands of power islands on and off under automated or manual control.

Increasing use of high-level synthesis (HLS) of standard software kernels into application-specific hardware coprocessors and putting them on the chip in case they are needed? Afterall, they have negligable cost if not turned on.

24: (C) 2008-13, DJ Greaves, University of Cambridge, Computer Laboratory.