Selection of processor cores for optimal thermal performance
First Claim
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1. A computer implemented method for optimizing thermal performance of a computer system, when the system is executing a program having instructions, the computer implemented method comprising executing instructions to:
- identify a set of processor cores associated with the computer system;
request a thermal index for each of the set of processor cores to form a set of thermal indexes;
rank the processor cores based on the set of thermal indexes, wherein a given one of the thermal indexes is derived by estimating the cycles-per-instruction of at least one of said instructions, and said given one of the thermal indexes comprises a value that is proportional to the inverse of the estimated cycles-per-instruction; and
map software to execute on an optimal processor core selected from the set of processor cores, wherein said core selection is based exclusively on the thermal index ranking.
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Abstract
A computer implemented method, data processing system, computer usable code, and apparatus are provided for optimizing the thermal performance of a computer system. A set of processor cores associated with the computer system are identified. A thermal index is requested for each of the set of processor cores and the processor cores are ranked based on the thermal index. Software is then mapped to execute on an optimal processor core form the set of processor cores based on the ranking.
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Citations
32 Claims
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1. A computer implemented method for optimizing thermal performance of a computer system, when the system is executing a program having instructions, the computer implemented method comprising executing instructions to:
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identify a set of processor cores associated with the computer system; request a thermal index for each of the set of processor cores to form a set of thermal indexes; rank the processor cores based on the set of thermal indexes, wherein a given one of the thermal indexes is derived by estimating the cycles-per-instruction of at least one of said instructions, and said given one of the thermal indexes comprises a value that is proportional to the inverse of the estimated cycles-per-instruction; and map software to execute on an optimal processor core selected from the set of processor cores, wherein said core selection is based exclusively on the thermal index ranking. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A data processing system comprising:
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a bus system; a communications system connected to the bus system; a memory connected to the bus system, wherein the memory includes a set of instructions; and a processing unit connected to the bus system, wherein the processing unit executes the set of instructions to identify a set of processor cores associated with the computer system;
request a thermal index for each of the set of processor cores to form a set of thermal indexes;
rank the processor cores based on the set of thermal indexes, wherein a given one of the thermal indexes is derived by estimating the cycles-per-instruction of at least one of said instructions, and said given one of thermal indexes comprises a value that is proportional to the inverse of the estimated cycles-per-instruction; and
map software to execute on an optimal processor core selected from the set of processor cores, wherein said core selection is based exclusively on the thermal index ranking. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A computer program product comprising:
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a computer storage medium storing computer usable program code for optimizing thermal performance of a computer system, when the system is executing a program having instructions, the computer program product including; computer usable program code for identifying a set of processor cores associated with the computer system; computer usable program code for requesting a thermal index for each of the set of processor cores to form a set of thermal indexes; computer usable program code for ranking the processor cores based on the set of thermal indexes, wherein a given one of the thermal indexes is derived by estimating the cycles-per-instruction of at least one of said instructions, and said given one of the thermal indexes comprises a value that is proportional to the inverse of the estimated cycles-per-instruction; and computer usable program code for mapping software to execute on an optimal processor core selected from the set of processor cores, wherein said core selection is based exclusively on the thermal index ranking. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. An apparatus for optimizing thermal performance of a computer system, when the system is executing a program having instructions, the apparatus comprising:
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identifying means for identifying a set of processor cores associated with the computer system; requesting means for requesting a thermal index for each of the set of processor cores to form a set of thermal indexes; ranking means for ranking the processor cores based on the set of thermal indexes, wherein a given one of the thermal indexes is derived by estimating the cycles-per-instruction of at least one of said instructions, and said given one of the thermal indexes comprises a value that is proportional to the inverse of the estimated cycles-per-instruction; and mapping means for mapping software to execute on an optimal processor core selected from the set of processor cores, wherein said core selection is based exclusively on the thermal index ranking. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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Specification