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US 8,555,091 B2Granted
Dynamic power state determination of a graphics processing unit
AssigneeIntel Corporation
InventorsEdward Costales, Robert F. Kubick, Abdul R. N
Life of this patent
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Abstract
According to some embodiments, a method and apparatus are provided to determine a first operating point and a second operating point associated with a graphics processing unit, automatically determine a plurality of voltage/frequency values between the first operating point and the second operating point, and define a plurality of power states of the graphic processing unit. One or more of the power states may be associated with one of the plurality of voltage/frequency values. Each of the plurality of voltage/frequency values may include both a voltage and a frequency.
Claims23
A method comprising:
- determining a first operating point associated with a graphics processing unit using test equipment that tests the graphics processing unit at a time of manufacture;
- determining a second operating point associated with the graphics processing unit using test equipment that tests the graphics processing unit at a time of manufacture;
- reading, via a processor, the first operating point and the second operating point associated with a graphics processing unit;
- automatically determining a plurality of voltage/frequency values between the first operating point and the second operating point, each of the plurality of voltage/frequency values including both a voltage and a frequency;
- and
- defining a plurality of power-performance states of the graphics processing unit, one or more of the power-performance states associated with one of the plurality of voltage/frequency values.
3 more elements
An apparatus comprising:
- a medium storing program instruction that when executed by a processor cause the processor to:
- determine a first operating point and a second operating point associated with a graphics processing unit;
- automatically determine a plurality of voltage/frequency values between the first operating point and the second operating point, each of the plurality of voltage/frequency values including both a voltage and a frequency;
- and
- define a plurality of power-performance states of the graphic processing unit, one or more power-performance states associated with one of the plurality of voltage/frequency values;
- wherein the determine a first operating point and a second operating point associated with a graphics processing unit comprises:
- read the first operating point associated with the graphics processing unit after the first operating point is determined by test equipment that tests the graphics processing unit at a time of manufacture;
- and
- read the second operating point associated with the graphics processing unit after the second operating point is determined by test equipment that tests the graphics processing unit at a time of manufacture.
6 more elements
A system comprising:
- a graphics processing unit;
- test equipment to test the graphics processing unit at a time of manufacture and to determine a first operating point associated with the graphics processing unit;
- test equipment to test the graphics processing unit at a time of manufacture and to determine a second operating point associated with the graphics processing unit;
- a switching voltage regulator;
- and
- a medium storing program instruction that when executed by a processor cause the processor to:
- read the first operating point and the second operating point associated with the graphics processing unit;
- automatically determine a plurality of voltage/frequency values between the first operating point and the second operating point, each of the plurality of voltage/frequency values including both a voltage and a frequency;
- and
- define a plurality of power-performance states of the graphic processing unit, one or more power-performance states associated with one of the plurality of voltage/frequency values.
7 more elements
Dependencies are inferred from the claim text.