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Synchronization of concurrent computation engines

專利號(hào)
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

The third execution engine 430 may independently execute instructions until it executes a checkpoint wait instruction to wait on a value equal to or greater than “1” set in the global checkpoint register Ckpt1 (i.e., Wait (Ckpt1, 1) 431. The third execution engine 430 may have a dependency on an operation performed by the second execution engine 420 and may halt execution of instructions until the value equal to or greater than “1” is set in the global checkpoint register Ckpt1. When the global checkpoint register Ckpt1 broadcasts 422 that the value “1” is set, the third execution engine 430 may resume executing instructions until it executes another checkpoint wait instruction (i.e., Wait (Ckpt1, 2) 433 indicating another dependency on an operation to be performed by the second execution engine 420. The third execution engine 430 may halt execution of instructions and wait for a value equal to or greater than “2” to be set in the global checkpoint register Ckpt1. Meanwhile, the second execution engine 420 may have executed instructions including a checkpoint set instruction to set a value of “2” in the global checkpoint register, Ckpt1 (i.e., Set (Ckpt1, 2)) 425.

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