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Synchronization of concurrent computation engines

專(zhuān)利號(hào)
US11175919B1
公開(kāi)日期
2021-11-16
申請(qǐng)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(lèi)
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(shuō)明書(shū)

When the global checkpoint register Ckpt1 broadcasts 424 that the value “2” is set, the third execution engine 430 may resume executing instructions until it executes still another checkpoint wait instruction (i.e., Wait (Ckpt1, ≥3) 435 indicating another dependency on an operation to be performed by the second execution engine 420 and may wait for a value equal to or greater than “3” to be set in the global checkpoint register Ckpt1. The second execution engine 420 may have executed instructions including a checkpoint set instruction to set a value of “3” in the global checkpoint register, Ckpt1 (i.e., Set (Ckpt1, 3)) 427. Independently, the fourth execution engine 440 may execute instructions until it executes a checkpoint wait instruction (i.e., Wait (Ckpt1, ≥3) 441 indicating a dependency on an operation to be performed by the second execution engine 420. The fourth execution engine 440 may halt execution of instructions and wait for a value equal to or greater than “3” to be set in the global checkpoint register Ckpt1. When the global checkpoint register Ckpt1 broadcasts 426 that the value “3” is set, the third execution engine 430 and the fourth execution engine 440 may resume executing instructions. Thus, in the above example, one global checkpoint register (i.e., Ckpt1) operated to coordinate several dependencies among different execution engines.

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