Apparatus and method of dispatching instructions for execution clusters based on dependencies

Aspects of the present disclosure relate to an apparatus comprising a plurality of clusters, each cluster having a plurality of execution units to execute instructions. The apparatus comprises dispatch circuitry to determine, for each instruction to be executed, a chosen cluster from amongst the plu...

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Bibliographic Details
Main Authors Nassi, Luca, Maiorano, Damian, Teyssier, Remi Marius, Donati, François
Format Patent
LanguageEnglish
Published 09.02.2021
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:Aspects of the present disclosure relate to an apparatus comprising a plurality of clusters, each cluster having a plurality of execution units to execute instructions. The apparatus comprises dispatch circuitry to determine, for each instruction to be executed, a chosen cluster from amongst the plurality of clusters to which to dispatch that instruction for execution. This determination is performed by selecting between a default dispatch policy wherein said chosen cluster is a cluster to which an earlier instruction to generate at least one source operand of said instruction was dispatched for execution, and an alternative dispatch policy for selecting said chosen cluster. Said selecting is based on a selection parameter. The dispatch circuitry is further configured to dispatch said instruction to the chosen cluster for execution.
Bibliography:Application Number: US201816220050