Selective workgroup wake-up based on synchronization mechanism identification with high contention scenario

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United States of America

PATENT NO 12190174
APP PUB NO 20200379820A1
SERIAL NO

16425881

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
ADVANCED MICRO DEVICES INC2485 AUGUSTINE DRIVE ATTN LEGAL DEPARTMENT SANTA CLARA CA 95054

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Beckmann, Bradford M Bellevue, US 57 920
Blagodurov, Sergey Bellevue, US 66 373
Dutu, Alexandru Bellevue, US 18 21
Gutierrez, Anthony T Bellevue, US 9 12
Sinclair, Matthew D Bellevue, US 6 8
Wood, David A Austin, US 49 1889

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