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Title: Checkpointing in speculative versioning caches

Abstract

Mechanisms for generating checkpoints in a speculative versioning cache of a data processing system are provided. The mechanisms execute code within the data processing system, wherein the code accesses cache lines in the speculative versioning cache. The mechanisms further determine whether a first condition occurs indicating a need to generate a checkpoint in the speculative versioning cache. The checkpoint is a speculative cache line which is made non-speculative in response to a second condition occurring that requires a roll-back of changes to a cache line corresponding to the speculative cache line. The mechanisms also generate the checkpoint in the speculative versioning cache in response to a determination that the first condition has occurred.

Inventors:
; ; ;
Issue Date:
Research Org.:
International Business Machines Corporation (Armonk, NY)
Sponsoring Org.:
USDOE
OSTI Identifier:
1093267
Patent Number(s):
8,521,961
Application Number:
12/544,704
Assignee:
International Business Machines Corporation (Armonk, NY)
DOE Contract Number:  
B554331
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING

Citation Formats

Eichenberger, Alexandre E, Gara, Alan, Gschwind, Michael K, and Ohmacht, Martin. Checkpointing in speculative versioning caches. United States: N. p., 2013. Web.
Eichenberger, Alexandre E, Gara, Alan, Gschwind, Michael K, & Ohmacht, Martin. Checkpointing in speculative versioning caches. United States.
Eichenberger, Alexandre E, Gara, Alan, Gschwind, Michael K, and Ohmacht, Martin. Tue . "Checkpointing in speculative versioning caches". United States. https://www.osti.gov/servlets/purl/1093267.
@article{osti_1093267,
title = {Checkpointing in speculative versioning caches},
author = {Eichenberger, Alexandre E and Gara, Alan and Gschwind, Michael K and Ohmacht, Martin},
abstractNote = {Mechanisms for generating checkpoints in a speculative versioning cache of a data processing system are provided. The mechanisms execute code within the data processing system, wherein the code accesses cache lines in the speculative versioning cache. The mechanisms further determine whether a first condition occurs indicating a need to generate a checkpoint in the speculative versioning cache. The checkpoint is a speculative cache line which is made non-speculative in response to a second condition occurring that requires a roll-back of changes to a cache line corresponding to the speculative cache line. The mechanisms also generate the checkpoint in the speculative versioning cache in response to a determination that the first condition has occurred.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {8}
}

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