System and method for out-of-order resource allocation and deallocation in a threaded machine

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United States of America Patent

PATENT NO 9690625
APP PUB NO 20100318998A1
SERIAL NO

12485608

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Abstract

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A system and method for managing the dynamic sharing of processor resources between threads in a multi-threaded processor are disclosed. Out-of-order allocation and deallocation may be employed to efficiently use the various resources of the processor. Each element of an allocate vector may indicate whether a corresponding resource is available for allocation. A search of the allocate vector may be performed to identify resources available for allocation. Upon allocation of a resource, a thread identifier associated with the thread to which the resource is allocated may be associated with the allocate vector entry corresponding to the allocated resource. Multiple instances of a particular resource type may be allocated or deallocated in a single processor execution cycle. Each element of a deallocate vector may indicate whether a corresponding resource is ready for deallocation. Examples of resources that may be dynamically shared between threads are reorder buffers, load buffers and store buffers.

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Patent Owner(s)

Patent OwnerAddress
SUN MICROSYSTEMS INC4150 NETWORK CIRCLE SANTA CLARA CA 95054

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Golla, Robert T Round Rock, US 56 904

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