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Title: Software only inter-compute unit redundant multithreading for GPUs

Abstract

A system, method and computer program product to execute a first and a second work-group, and compare the signature variables of the first work-group to the signature variables of the second work-group via a synchronization mechanism. The first and the second work-group are mapped to an identifier via software. This mapping ensures that the first and second work-groups execute exactly the same data for exactly the same code without changes to the underlying hardware. By executing the first and second work-groups independently, the underlying computation of the first and second work-groups can be verified. Moreover, system performance is not substantially affected because the execution results of the first and second work-groups are compared only at specified comparison points.

Inventors:
; ;
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1532148
Patent Number(s):
9,274,904
Application Number:
13/920,524
Assignee:
Advanced Micro Devices, Inc. (Sunnyvale, CA)
DOE Contract Number:  
AC52-07NA27344; B600716
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013-06-18
Country of Publication:
United States
Language:
English

Citation Formats

Lyashevsky, Alexander, Gurumurthi, Sudhanva, and Sridharan, Vilas. Software only inter-compute unit redundant multithreading for GPUs. United States: N. p., 2016. Web.
Lyashevsky, Alexander, Gurumurthi, Sudhanva, & Sridharan, Vilas. Software only inter-compute unit redundant multithreading for GPUs. United States.
Lyashevsky, Alexander, Gurumurthi, Sudhanva, and Sridharan, Vilas. Tue . "Software only inter-compute unit redundant multithreading for GPUs". United States. https://www.osti.gov/servlets/purl/1532148.
@article{osti_1532148,
title = {Software only inter-compute unit redundant multithreading for GPUs},
author = {Lyashevsky, Alexander and Gurumurthi, Sudhanva and Sridharan, Vilas},
abstractNote = {A system, method and computer program product to execute a first and a second work-group, and compare the signature variables of the first work-group to the signature variables of the second work-group via a synchronization mechanism. The first and the second work-group are mapped to an identifier via software. This mapping ensures that the first and second work-groups execute exactly the same data for exactly the same code without changes to the underlying hardware. By executing the first and second work-groups independently, the underlying computation of the first and second work-groups can be verified. Moreover, system performance is not substantially affected because the execution results of the first and second work-groups are compared only at specified comparison points.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {3}
}

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