Selective workgroup wake-up based on synchronization mechanism identification with high contention scenario
US12190174B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2019 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | May 29, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/3495
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A technique for synchronizing workgroups is provided. Multiple workgroups execute a wait instruction that specifies a condition variable and a condition. A workgroup scheduler stops execution of a workgroup that executes a wait instruction and an advanced controller begins monitoring the condition variable. In response to the advanced controller detecting that the condition is met, the workgroup scheduler determines whether there is a high contention scenario, which occurs when the wait instruction is part of a mutual exclusion synchronization primitive and is detected by determining that there is a low number of updates to the condition variable prior to detecting that the condition has been met. In a high contention scenario, the workgroup scheduler wakes up one workgroup and schedules another workgroup to be woken up at a time in the future. In a non-contention scenario, more than one workgroup can be woken up at the same time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.