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Title: Multiprocessor system with multiple concurrent modes of execution

Abstract

A multiprocessor system supports multiple concurrent modes of speculative execution. Speculation identification numbers (IDs) are allocated to speculative threads from a pool of available numbers. The pool is divided into domains, with each domain being assigned to a mode of speculation. Modes of speculation include TM, TLS, and rollback. Allocation of the IDs is carried out with respect to a central state table and using hardware pointers. The IDs are used for writing different versions of speculative results in different ways of a set in a cache memory.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
International Business Machines Corporations (Armonk, NY)
Sponsoring Org.:
USDOE
OSTI Identifier:
1113225
Patent Number(s):
8,621,478
Application Number:
13/008,502
Assignee:
International Business Machines Corporation (Armonk, NY) OSTI
DOE Contract Number:  
B554331
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING

Citation Formats

Ahn, Daniel, Ceze, Luis H, Chen, Dong, Gara, Alan, Heidelberger, Philip, and Ohmacht, Martin. Multiprocessor system with multiple concurrent modes of execution. United States: N. p., 2013. Web.
Ahn, Daniel, Ceze, Luis H, Chen, Dong, Gara, Alan, Heidelberger, Philip, & Ohmacht, Martin. Multiprocessor system with multiple concurrent modes of execution. United States.
Ahn, Daniel, Ceze, Luis H, Chen, Dong, Gara, Alan, Heidelberger, Philip, and Ohmacht, Martin. Tue . "Multiprocessor system with multiple concurrent modes of execution". United States. https://www.osti.gov/servlets/purl/1113225.
@article{osti_1113225,
title = {Multiprocessor system with multiple concurrent modes of execution},
author = {Ahn, Daniel and Ceze, Luis H and Chen, Dong and Gara, Alan and Heidelberger, Philip and Ohmacht, Martin},
abstractNote = {A multiprocessor system supports multiple concurrent modes of speculative execution. Speculation identification numbers (IDs) are allocated to speculative threads from a pool of available numbers. The pool is divided into domains, with each domain being assigned to a mode of speculation. Modes of speculation include TM, TLS, and rollback. Allocation of the IDs is carried out with respect to a central state table and using hardware pointers. The IDs are used for writing different versions of speculative results in different ways of a set in a cache memory.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {12}
}

Patent:

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