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Synchronization of concurrent computation engines

專利號
US11175919B1
公開日期
2021-11-16
申請人
Amazon Technologies, Inc.（US WA Seattle）
發(fā)明人
Ilya Minkin; Ron Diamant; Drazen Borkovic; Jindrich Zejda; Dana Michelle Vantrease
IPC分類
G06F9/30; G06F9/35; G06F13/28; G06F9/38; G06F9/52; G06N3/06
技術(shù)領(lǐng)域
checkpoint,engine,execution,register,ckpt1,engines,in,wait,value,can
地域： WA WA Seattle

摘要

Integrated circuit devices and methods for synchronizing execution of program code for multiple concurrently operating execution engines of the integrated circuit devices are provided. In some cases, one execution engine of an integrated circuit device may be dependent on the operation of another execution engine of the integrated circuit device. To synchronize the execution engines around the dependency, a first execution engine may execute an instruction to set a value in a register while a second execution engine may execute an instruction to wait for a condition associated with the register value.

說明書

Independently, the second execution engine 420 executes instructions until it executes a checkpoint wait instruction to wait until a value equal to or greater than “1” set in the global checkpoint register Ckpt2 (i.e., Wait (Ckpt2, ≥1) 421. The second execution engine 420 may have a dependency on the operation performed by the first execution engine 410 and may halt execution of instructions until the value equal to or greater than “1” is set in the global checkpoint register Ckpt2. When the global checkpoint register Ckpt2 broadcasts 412 that the value “1” is set, the second execution engine 420 may resume executing instructions. The second execution engine 420 may continue executing instructions and may execute a checkpoint set instruction (i.e., Set (Ckpt1, 1)) 423 to set a value of “1” in a different global checkpoint register, Ckpt1. Global checkpoint register Ckpt1 may broadcast 422 its value to all of the execution engines. The second execution engine 420 may continue executing instructions.

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