Qualcomm Incorporated

Tracy A Ulmer

Norman S Gargash

Andrew James Frantz

Joshua Stubbs

Vinod Vijayarajan

Gabriel A Watkins

Grady L Caraway

Michael Abel

Andrew J Frantz

The aspects enable a computing device or microprocessor to determine a low-power mode that maximizes system power savings by placing selected resources in a low power mode while continuing to function reliably, depending upon the resources not in use, acceptable system latencies, dynamic operating conditions (e.g., temperature), expected idle time, and the unique electrical characteristics of the particular device. The various aspects provide mechanisms and methods for compiling a plurality of low power resource modes to generate one or more synthetic low power resources from which can be selected an optimal low-power mode configuration made up of a set of selected synthetic low power resources.

Domain specific language, compiler and JIT for dynamic power management

The aspects enable a multi-core processor or system on chip to determine a low power configuration that provides the most system power savings by placing selected resources in a low power mode depending upon acceptable system latencies, dynamic operating conditions (e.g., temperature), expected idle time, and the unique electrical characteristics of the particular device. Each of the cores/processing units treated in a symmetric fashion, and each core may choose its operating state independent of the other cores, without performing complex handshaking or signaling operations.

Dynamic sleep for multicore computing devices

A method and system for managing requests among resources within a portable computing device include a scheduler receiving data from a client for scheduling a plurality of requests. Each request identifies at least one resource and a requested deadline. Next, data from the client is stored by the scheduler in a database. The scheduler then determines times and a sequence for processing the requests based on requested deadlines in the requests and based on current states of resources within the portable computing device. The scheduler then communicates the requests to the resources at the determined times and according to the determined sequence. The scheduler, at its discretion, may schedule a request after its requested deadline in response to receiving a new request command from a client. The scheduler may allow a sleep set corresponding to a sleep processor state to power off a processor.

Method and system for scheduling requests in a portable computing device

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Boulder, CO, United States of America

Tracy A Ulmer