Clock Frequency Drift with Power Droop in GPU Chips

Clock Frequency Drift with Power Droop in GPU Chips

Bibliographic Details
Main Author: Jhaveri, Shaival G.
Language:English
Published: University of Cincinnati / OhioLINK 2013
Subjects:
Computer Engineering
GPU
LVx
Switching activity
Power Droop
Clock frequency
Low-power
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=ucin1378195126
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-ucin13781951262021-08-03T06:19:39Z Clock Frequency Drift with Power Droop in GPU Chips Jhaveri, Shaival G. Computer Engineering GPU LVx Switching activity Power Droop Clock frequency Low-power GPU chips consume hundreds of watts of power when fully loaded as they undergo a large number of switching activities. This excessive switching activity can cause a sudden drop in power supply voltage, which is known as power droop. The main objective of this thesis is to understand the relationship between clock frequency and power droop. To establish the relationship we performed SPICE simulations and replicated the phenomenon of power droop to observe its effect on clock frequency. We define the observed effect of power droop to be Clock Frequency Drift Effect – wherein, the greater the power droop, the lower the frequency at which the clocks run. Industrial results are generated on a silicon GPU chip using Verigy 93K ATE and through LVx (Laser Voltage Extraction) control to strengthen the point of frequency degradation. On average, a frequency degradation of 18.33% was observed through the LVx results. We have also done a review on low capture power solutions to show how those solutions reduce toggle count which in turn mitigates the effect of power droop and thereby improves frequency. 2013-10-21 English text University of Cincinnati / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ucin1378195126 http://rave.ohiolink.edu/etdc/view?acc_num=ucin1378195126 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Computer Engineering
GPU
LVx
Switching activity
Power Droop
Clock frequency
Low-power
spellingShingle Computer Engineering
GPU
LVx
Switching activity
Power Droop
Clock frequency
Low-power
Jhaveri, Shaival G.
Clock Frequency Drift with Power Droop in GPU Chips
author Jhaveri, Shaival G.
author_facet Jhaveri, Shaival G.
author_sort Jhaveri, Shaival G.
title Clock Frequency Drift with Power Droop in GPU Chips
title_short Clock Frequency Drift with Power Droop in GPU Chips
title_full Clock Frequency Drift with Power Droop in GPU Chips
title_fullStr Clock Frequency Drift with Power Droop in GPU Chips
title_full_unstemmed Clock Frequency Drift with Power Droop in GPU Chips
title_sort clock frequency drift with power droop in gpu chips
publisher University of Cincinnati / OhioLINK
publishDate 2013
url http://rave.ohiolink.edu/etdc/view?acc_num=ucin1378195126
work_keys_str_mv AT jhaverishaivalg clockfrequencydriftwithpowerdroopingpuchips
_version_ 1719434830012219392

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