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Geyser-1, a prototype MIPS R3000 CPU with fine grain runtime PG for major computational components in the execution stage is available. Function units such as CLU, shifter, multiplier and divider are power-gated and controlled at runtime such that only the function unit to be used is powered-on to minimize the leakage power. The evaluation results on the real chip reveals that the fine grain runtime...
Power management is essential in microprocessor-based system design to avoid heat dissipation and preserve battery life time. In mobile devices running real time applications, the power consumed by the CPU can be more than the needed amount of power for best performance. At first glance, one can think of reducing the power budget of the system. Although this may seem an appealing easy solution, it...
A workstation requires a low-power design similar to a typical PC. In this paper we propose several strategies to reduce the power consumption of a workstation. First, we must comprehend the needed dynamic power management for the CPU by using a PWM (Pulse Width Modulation) chip to detect the workload or the current consumption of the CPU. The design then automatically adjusts the CPU voltage and...
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