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 Corp., Armonk, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1333218
- Patent Number(s):
- 9,501,333
- Application Number:
- 14/143,783
- Assignee:
- International Business Machines Corporation (Armonk, NY)
- DOE Contract Number:
- B554331
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2013 Dec 30
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 97 MATHEMATICS AND COMPUTING
Citation Formats
Ahn, Daniel, Ceze, Luis H., Chen, Dong Chen, Gara, Alan, Heidelberger, Philip, and Ohmacht, Martin. Multiprocessor system with multiple concurrent modes of execution. United States: N. p., 2016.
Web.
Ahn, Daniel, Ceze, Luis H., Chen, Dong Chen, Gara, Alan, Heidelberger, Philip, & Ohmacht, Martin. Multiprocessor system with multiple concurrent modes of execution. United States.
Ahn, Daniel, Ceze, Luis H., Chen, Dong Chen, Gara, Alan, Heidelberger, Philip, and Ohmacht, Martin. Tue .
"Multiprocessor system with multiple concurrent modes of execution". United States. https://www.osti.gov/servlets/purl/1333218.
@article{osti_1333218,
title = {Multiprocessor system with multiple concurrent modes of execution},
author = {Ahn, Daniel and Ceze, Luis H. and Chen, Dong Chen 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 = {2016},
month = {11}
}
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