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As the industry moves from single- to multicore processors, the challenges of how to reliably design and analyze power delivery for such systems also arise. We study various workload assignments to cores and their impact on the global power grid noise. We develop metrics to estimate the amount of noise propagated from core to core and propose a power supply noise aware workload assignment method....
Power gating is an efficient technique for reducing leakage power in electronic devices by disconnecting blocks idle for long periods of time from the power supply. Disconnecting gated blocks causes changes in densities of currents flowing through a grid. Even in DC conditions, current densities in some grid branches may increase for some gating configurations to the extent of violating electromigration...
With feature sizes steadily shrinking, manufacturing defects and parameter variations often cause design timing failures. It is essential that those errors be correctly and quickly diagnosed. The existing delay-fault diagnosis algorithms cannot identify the delay faults that require nonrobust tests, because they ignore nonrobust propagation conditions while emulating the failure analyzer's behavior...
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