Single-chip Cloud Computer – Energy Efficiency with Real-Time Advanced Power Management
In this demo with Rob F. Van der Wijngaart, Senior Software Engineer, Intel:
The experimental chip was designed to operate from as high as 125W to as low as 25W by providing a variety of advanced capabilities to manage power consumption. Power use is largely determined by the cores’ clock speeds and operating voltages. The chip has a unique ability to mix and match voltages and clock speeds for the different cores, or even to turn off entire regions of the chip when not needed. These capabilities can be controlled by software, allowing the application or operating system to intelligently manage power consumption, adapting in real time to use only the energy that is really needed. The demonstration displays how power levels for different sections of the chip change in response to the needs of a series of tasks whose power requirements vary over time. The tasks of the application are modeled after parallel computations.
This podcast is from the live webcast at the Clift Hotel in San Francisco on December 2, 2009. This demo followed Intel CTO, Justin Rattner’s opening remarks on the Single-Chip Cloud Computer, the latest Intel Labs milestone in the Intel Tera-scale Computing Research Program.
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