Invention Grant
- Patent Title: Fast GPU context switch
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Application No.: US16511742Application Date: 2019-07-15
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Publication No.: US10853907B2Publication Date: 2020-12-01
- Inventor: Tatsuya Iwamoto , Kutty Banerjee , Rohan Sanjeev Patil
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Blank Rome LLP
- Main IPC: G06T1/20
- IPC: G06T1/20 ; G06F9/48

Abstract:
Systems, methods, and computer readable media to improve task switching operations in a graphics processing unit (GPU) are described. As disclosed herein, the clock rate (and voltages) of a GPU's operating environment may be altered so that a low priority task may be rapidly run to a task switch boundary (or completion) so that a higher priority task may begin execution. In some embodiments, only the GPU's operating clock (and voltage) is increased during the task switch operation. In other embodiments, the clock rate (voltages) of supporting components may also be increased. For example, the operating clock for the GPU's supporting memory, memory controller or memory fabric may also be increased. Once the lower priority task has been swapped out, one or more of the clocks (and voltages) increased during the switch operation could be subsequently decreased, though not necessarily to their pre-switch rates.
Public/Granted literature
- US20190340723A1 Fast GPU Context Switch Public/Granted day:2019-11-07
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