Load Based Dynamic Resource Sets

• US 20150160977A1
• Filed: 12/05/2013
• Published: 06/11/2015
• Est. Priority Date: 12/05/2013
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Bello, Adekunle, Accapadia, Mathew
• Granted Patent: US 9,875,145 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 2209/5011 Pool
• CPC Class Codes: G06F 2209/5012 Processor sets
• CPC Class Codes: G06F 2209/5022 Workload threshold
• CPC Class Codes: G06F 9/5083 Techniques for rebalancing the load in a distributed system

Abstract

A method, system and computer-usable medium are disclosed for dynamic load based resource sets that provide flexible assignment of resources to processes with nested resource sets. Resource sets include plural resource subsets so that processes that are assigned to a resource subset can have additional resources flexibly made available by providing additional resources from a parent resource set. A resource threshold is monitored to selectively adjust process resource subset assignments based upon utilization of resources within a resource subset, such as by comparing the number of threads assigned to a resource subset with the number processors available to run the threads.

Claims

1. A computer-implemented method for load based dynamic resource sets to allocate resources to a process, comprising:

defining at least first and second resource sets, each of the resource sets having plural resource subsets, each resource subset including a portion of the resources;

creating a process to run on the resources;

restricting the process to use of a selected resource subset of the first resource set;

running the process on the resources of the selected resource subset;

determining a resource threshold associated with the selected resource subset; and

in response to determining, running the process on the resources of the first resource set.

2. The method of claim 1 further comprising:

detecting a predetermined condition associated with the process; and

in response to detecting, restricting the running the process to the selected resource subset.

3. The method of claim 2 wherein determining a resource threshold further comprises:

comparing the number of runnable threads assigned to run in the selected resource subset with the number of processors in the selected resource subset; and

determining the resource threshold if the number of runnable threads is greater than the number of processors for a predetermined number of consecutive intervals.

4. The method of claim 3 wherein determining a resource threshold further comprises:

comparing the number of runnable threads assigned to run in the first resource set with the number of processors in the first resource set; and

determining the resource threshold if the number of runnable threads assigned to run in the first resource set is less than the number of processors for a predetermined number of consecutive intervals.

5. The method of claim 1 wherein in response to determining, running the process on the resources of the first resource set further comprises:

changing at least one resource identifier of the selected resource subset to include a resource of the first resource set.

6. The method of claim 1 wherein in response to determining, running the process on the resources of the first resource set further comprises:

requesting by the process use of a resource of the selected resource subset; and

responding to the requesting by assigning the process to a resource of the first resource set other than the resources of the selected resource subset.

7. A system comprising:

a processor;

a data bus coupled to the processor; and

a computer-usable medium embodying computer program code, the computer-usable medium being coupled to the data bus, the computer program code used for load based dynamic resource sets to allocate resources to a process and comprising instructions executable by the processor and configured for;

defining at least first and second resource sets, each of the resource sets having plural resource subsets, each resource subset including a portion of the resources;

creating a process to run on the resources;

restricting the process to use of a selected resource subset of the first resource set;

running the process on the resources of the selected resource subset;

determining a resource threshold associated with the selected resource subset; and

in response to determining, running the process on the resources of the first resource set.

8. The system of claim 7 wherein the instructions executable by the processor are further configured for:

detecting a predetermined condition associated with the process; and

in response to detecting, restricting the running the process to the selected resource subset.

9. The system of claim 8 wherein determining a resource threshold further comprises:

comparing the number of runnable threads assigned to run in the selected resource subset with the number of processors in the selected resource subset; and

determining the resource threshold if the number of runnable threads is greater than the number of processors for a predetermined number of consecutive intervals.

10. The system of claim 9 wherein determining a resource threshold further comprises:

comparing the number of runnable threads assigned to run in the first resource set with the number of processors in the first resource set; and

determining the resource threshold if the number of runnable threads assigned to run in the first resource set is less than the number of processors for a predetermined number of consecutive intervals.

11. The system of claim 7 wherein in response to determining, running the process on the resources of the first resource set further comprises:

changing at least one resource identifier of the selected resource subset to include a resource of the first resource set.

12. The system of claim 7 wherein in response to determining, running the process on the resources of the first resource set further comprises:

requesting by the process use of a resource of the selected resource subset; and

responding to the requesting by assigning the process to a resource of the first resource set other than the resources of the selected resource subset.

13. A non-transitory, computer-readable storage medium embodying computer program code, the computer program code comprising computer executable instructions configured for:

defining at least first and second resource sets, each of the resource sets having plural resource subsets, each resource subset including a portion of the resources;

creating a process to run on the resources;

restricting the process to use of a selected resource subset of the first resource set;

running the process on the resources of the selected resource subset;

determining a resource threshold associated with the selected resource subset; and

in response to determining, running the process on the resources of the first resource set.

14. The non-transitory, computer-readable storage medium of claim 13, wherein the instructions are further configured for:

detecting a predetermined condition associated with the process; and

in response to detecting, restricting the running the process to the selected resource subset.

15. The non-transitory, computer-readable storage medium of claim 14, wherein determining a resource threshold further comprises:

comparing the number of runnable threads assigned to run in the selected resource subset with the number of processors in the selected resource subset; and

determining the resource threshold if the number of runnable threads is greater than the number of processors for a predetermined number of consecutive intervals.

16. The non-transitory, computer-readable storage medium of claim 15 wherein determining a resource threshold further comprises:

comparing the number of runnable threads assigned to run in the first resource set with the number of processors in the first resource set; and

determining the resource threshold if the number of runnable threads assigned to run in the first resource set is less than the number of processors for a predetermined number of consecutive intervals.

17. The non-transitory, computer-readable storage medium of claim 13, wherein in response to determining, running the process on the resources of the first resource set further comprises:

changing at least one resource identifier of the selected resource subset to include a resource of the first resource set.

18. The non-transitory, computer-readable storage medium of claim 13, wherein in response to determining, running the process on the resources of the first resource set further comprises:

requesting by the process use of a resource of the selected resource subset; and

responding to the requesting by assigning the process to a resource of the first resource set other than the resources of the selected resource subset.

19. The non-transitory, computer-readable storage medium of claim 13, wherein the computer executable instructions are deployable to a client system from a server system at a remote location.

20. The non-transitory, computer-readable storage medium of claim 13, wherein the computer executable instructions are provided by a service provider to a user on an on-demand basis.