Method, system, and apparatus for dynamic thermal management
View Patent ↗A method, apparatus, article of manufacture, and system, the method including, in some embodiments, processing a computational load by a first core of a multi-core processor, and dynamically distributing at least a portion of the computational load to a second core of the multi-core processor to reduce a power density of the multi-core processor for the processing of the computational load.
1. An apparatus comprising:
a multi-core processor including a plurality of cores to process multiple threads; and
a dynamic thermal manager (DTM) to dynamically migrate one or more threads from one or more hot cores to one or more lower-temperature cores at a thread migration rate corresponding to a temperature difference between at least one of the hot cores and at least one of the lower-temperature cores.
2. The apparatus of claim 1 , wherein the DTM is to begin by migrating a thread from a hottest core.
3. The apparatus of claim 1 , wherein the plurality of cores includes a first cluster of at least two adjacent cores and a second cluster of at least two adjacent cores that are not adjacent to the cores in the first cluster, the DTM to migrate a thread from the first cluster to the second cluster if a thread has not yet been migrated from the first cluster.
4. The apparatus of claim 1 , wherein the dynamic migrating occurs using predetermined and adaptive migration parameters.
5. The apparatus of claim 1 , wherein the dynamic migrating occurs at a predetermined frequency.
6. The apparatus of claim 1 , wherein the dynamic migrating occurs at an adaptive frequency.
7. The apparatus of claim 1 , wherein the dynamic migrating is based on a temperature response of the multi-core processor.
8. The apparatus of claim 7 , wherein the temperature response includes at least one of a predetermined operating temperature of the multi-core processor, an adaptive operating temperature of the multi-core processor, and combinations thereof.
9. The apparatus of claim 1 , wherein the dynamic migrating occurs at a frequency greater than a thermal time constant associated with a temperature response of the multi-core processor.
10. The apparatus of claim 1 , wherein the dynamic migrating is based on a relationship between a migration frequency and a temperature response of the multi-core processor.
11. The apparatus of claim 1 , in which the DTM is implemented with a controller.
12. The apparatus of claim 11 , in which the controller provides a hardware based DTM mechanism.
13. A memory storage device having instructions that when executed perform a method comprising:
in a multi-core processor having a plurality of cores to process multiple threads, dynamically migrating one or more threads from one or more hot cores to one or more lower-temperature cores at a thread migration rate corresponding to a temperature difference between at least one of the hot cores and at least one of the lower-temperature cores.
14. The device of claim 13 , wherein the method is to begin the migration by migrating a thread from a hottest core.
15. The device of claim 13 , wherein the plurality of cores includes a first cluster of at least two adjacent cores and a second cluster of at least two adjacent cores that are not adjacent to the cores in the first cluster, the method to migrate a thread from the first cluster to the second cluster if a thread has not yet been migrated from the first cluster.
16. The device of claim 13 , wherein the dynamic migrating occurs using predetermined and adaptive migration parameters.
17. The device of claim 13 , wherein the dynamic migrating occurs at a predetermined frequency.
18. The device of claim 13 , wherein the dynamic migrating is based on a relationship between a migration frequency and a temperature response of the multi-core processor.
19. An apparatus comprising:
a multi-core processor including a plurality of cores to process multiple threads; and
a dynamic thermal manager (DTM) to dynamically migrate one or more threads from one or more hot cores to one or more lower-temperature cores, wherein the plurality of cores includes a first cluster of at least two adjacent cores and a second cluster of at least two adjacent cores that are not adjacent to the cores in the first cluster, the DTM to migrate a thread from a hot core in the first cluster to a lower-temperature core in the second cluster, wherein migration is to occur at a thread migration rate corresponding to a temperature difference between at least one of the hot cores and at least one of the lower-temperature cores.
20. The apparatus of claim 19 , wherein the DTM is to begin by migrating a thread from a hottest core of the cores in the first and second clusters.
21. The apparatus of claim 19 , wherein the dynamic migrating occurs using predetermined and adaptive migration parameters.
22. The apparatus of claim 21 , wherein the dynamic migrating is to occur based on at least one adaptive parameter.