Hardware accuracy counters for application precision and quality feedback
Abstract
Methods, devices, and systems for capturing an accuracy of an instruction executing on a processor. An instruction may be executed on the processor, and the accuracy of the instruction may be captured using a hardware counter circuit. The accuracy of the instruction may be captured by analyzing bits of at least one value of the instruction to determine a minimum or maximum precision datatype for representing the field, and determining whether to adjust a value of the hardware counter circuit accordingly. The representation may be output to a debugger or logfile for use by a developer, or may be output to a runtime or virtual machine to automatically adjust instruction precision or gating of portions of the processor datapath.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1455226
- Patent Number(s):
- 9990203
- Application Number:
- 14/981,310
- Assignee:
- Advanced Micro Devices, Inc. (Sunnyvale, CA)
- Patent Classifications (CPCs):
-
G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02D - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
- DOE Contract Number:
- AC52-07NA27344; B609201
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2015 Dec 28
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
de Paula Rosa Piga, Leonardo, Majumdar, Abhinandan, Paul, Indrani, Huang, Wei, Arora, Manish, and Greathouse, Joseph L. Hardware accuracy counters for application precision and quality feedback. United States: N. p., 2018.
Web.
de Paula Rosa Piga, Leonardo, Majumdar, Abhinandan, Paul, Indrani, Huang, Wei, Arora, Manish, & Greathouse, Joseph L. Hardware accuracy counters for application precision and quality feedback. United States.
de Paula Rosa Piga, Leonardo, Majumdar, Abhinandan, Paul, Indrani, Huang, Wei, Arora, Manish, and Greathouse, Joseph L. Tue .
"Hardware accuracy counters for application precision and quality feedback". United States. https://www.osti.gov/servlets/purl/1455226.
@article{osti_1455226,
title = {Hardware accuracy counters for application precision and quality feedback},
author = {de Paula Rosa Piga, Leonardo and Majumdar, Abhinandan and Paul, Indrani and Huang, Wei and Arora, Manish and Greathouse, Joseph L.},
abstractNote = {Methods, devices, and systems for capturing an accuracy of an instruction executing on a processor. An instruction may be executed on the processor, and the accuracy of the instruction may be captured using a hardware counter circuit. The accuracy of the instruction may be captured by analyzing bits of at least one value of the instruction to determine a minimum or maximum precision datatype for representing the field, and determining whether to adjust a value of the hardware counter circuit accordingly. The representation may be output to a debugger or logfile for use by a developer, or may be output to a runtime or virtual machine to automatically adjust instruction precision or gating of portions of the processor datapath.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {6}
}
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