Profile based optimization of processor operating points

摘要

A program is executed with a first programmable device (10). Device operating points such as power supply voltage and/or clock frequency are adapted dependent on the states reached by the device during execution. Operation of programs that may have been sold after the device has been supplied to users is optimized by executing the computer program on each of a plurality of programmable devices (10) like the first programmable device, and collecting statistical data associated with the execution states encountered during execution by the plurality of programmable devices (10). Each of the plurality of programmable devices (10) collects its own statistical data and uploads the collected information to a common profiling apparatus (14). The profiling apparatus assigns device operating points to respective ones of the execution states, using an optimization that depends on the combined statistical data from the plurality of programmable devices (10). Subsequently the device operating points of the first programmable device (10) are set in the respective execution states to the assigned device operating points.

主权项

1. A method of executing a program with a first programmable device from a plurality of programmable devices, the method comprising:
identifying a plurality of execution states of the program; executing the program on each of the plurality of programmable devices; collecting statistical data associated with the execution states encountered during execution by the plurality of programmable devices, said collecting being performed by each of the plurality of programmable devices; uploading the collected statistical data from the plurality of programmable devices to a common profiling apparatus; assigning device operating points to respective ones of the execution states, using an optimization that depends on a combination of the collected statistical data from the plurality of programmable devices; and setting device operating points of the first programmable device in the respective execution states to the assigned device operating points for the execution states during subsequent execution of the program by the first programmable device, including setting multiple different operating points for the first programmable device based upon the collected statistical data from all of the programmable devices, each operating point corresponding to a different execution state carried out by the first programmable device.