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Quantifying load stream behavior

S. Sair, T. Sherwood, B. Calder
Proceedings Eighth International Symposium on High Performance Computer Architecture  
Acknowledgments We would like to thank Yuanfang Hu for her help in gathering the recurrent, base address, and complex pointer load classification results.  ...  To quantify the behavior of pointer loads, we examined two metrics each weighted by the number of cache misses for pointer-based loads.  ...  Thus, the stride prediction for a stream buffer is based only on the past memory behavior of the load for which the stream buffer was allocated.  ... 
doi:10.1109/hpca.2002.995710 dblp:conf/hpca/SairSC02 fatcat:6n4ra5bwzzdn7ff77q27wglxxe

Quantifying In-Stream Processes on Phosphorus Export Using an Empirical Approach

Soni M. Pradhanang, Rajith Mukundan, Mark S. Zion, Elliot M. Schneiderman, Donald Pierson, Tammo S. Steenhuis
2014 Journal of Water Resource and Protection  
A mass balance of estimated P inputs to the stream with observed P export at the watershed outlet was used to quantify P delivery and explore the behavior of P.  ...  We investigated the significance of stream processes in regulating P loading to the Cannonsville watershed, NY, USA.  ...  Net P retention or release processes quantified by comparing the observed curvilinear PLoad Outlet versus stream flow relationships with corresponding P loads calculated using the corresponding linear  ... 
doi:10.4236/jwarp.2014.62017 fatcat:6z6wjefqpfetzh5l5sd6pm2frq

Efficient representations and abstractions for quantifying and exploiting data reference locality

Trishul M. Chilimbi
2001 Proceedings of the ACM SIGPLAN 2001 conference on Programming language design and implementation - PLDI '01  
We demonstrate that these representations and our hot data stream abstraction are useful for quantifying and exploiting data reference locality.  ...  We believe the primary reason for this imbalance is the lack of a suitable representation of a program's dynamic data reference behavior and a quantitative basis for understanding this behavior.  ...  Using Metrics to Quantify Locality Two factors contribute to the regularity magnitude or 'heat' of a data stream.  ... 
doi:10.1145/378795.378840 dblp:conf/pldi/Chilimbi01 fatcat:qyhdirqogzfm5hcf6x6plin3nq

Modeling Superscalar Processor Memory-Level Parallelism

Sam Van Den Steen, Lieven Eeckhout
2018 IEEE computer architecture letters  
We profile the workload once and measure a set of distributions to characterize the workload's inherent memory behavior.  ...  We subsequently generate a virtual instruction stream, over which we then process an abstract MLP model to predict MLP for a particular micro-architecture with a given ROB size, LLC size, MSHR size and  ...  The inter-load dependence distribution quantifies the probability that a load depends on any of the n previous loads in the instruction stream.  ... 
doi:10.1109/lca.2017.2701370 fatcat:hoq64fsdzrfqvhrkggjgcalgqe

Page 42 of SMPTE Motion Imaging Journal Vol. 123, Issue 2 [page]

2014 SMPTE Motion Imaging Journal  
ANALYSIS OF PRECISION TIME PROTOCOL (PTP) LOCKING TIME ON NON-PTP NETWORKS FOR GENERATOR LOCKING OVER IP «i Load at congestion point 300% 150% 100% 50% Stream 1...1>3 100% 100% 50% 25% Stream 2...2 > 4  ...  '* Therefore, one of the objectives of this work was to quantify the effect of class-based queuing on lock time and clock synchronization accuracy in case of (heavily) loaded net- works.  ... 

Modeling Water Quality Management Alternatives for a Nutrient Impaired Stream Using System Dynamics Simulation

R. S. V. Teegavarapu
2005 Journal of Environmental Informatics  
Case study application of this model is illustrated by developing a total maximum daily load (TMDL) allocation strategy for a nutrient impaired stream in the southeastern region of Kentucky, USA.  ...  The model structure and behavior of the system is validated using dimensionality, replication and sensitivity tests; and calibration along with validation is carried out using an appropriate model performance  ...  The TMDL development process establishes the allowable loadings of pollutants or other quantifiable parameters for a water body based on the relationship between pollution sources and * Corresponding author  ... 
doi:10.3808/jei.200500048 fatcat:xvq3fqzslzdmporm4y5zturjha

Predicting Time Cattle Spend in Streams to Quantify Direct Deposition of Manure

2014 Applied Engineering in Agriculture  
Current methods to predict bacterial loads into streams resulting from direct deposition of manure by livestock do not consider factors that influence livestock behavior.  ...  Information on relative location of the cattle to the pasture stream was used to calculate the number of hours a cow spent in the stream, and from that the load of bacteria deposited directly into the  ...  For this study however, to quantify the hours per day spent in the stream instead of a probability based on temperature, the time interval between data collection was multiplied by the number of instances  ... 
doi:10.13031/aea.30.10393 fatcat:l2ielq4g2jh6bkw4k75fgbphaq

YABench: A Comprehensive Framework for RDF Stream Processor Correctness and Performance Assessment [chapter]

Maxim Kolchin, Peter Wetz, Elmar Kiesling, A Min Tjoa
2016 Lecture Notes in Computer Science  
It is highly configurable and provides quantifiable and reproducible results on correctness and performance characteristics.  ...  RDF stream processing (RSP) has become a vibrant area of research in the semantic web community.  ...  We observed similar behavior under medium and high load (see Figs. 3b-c).  ... 
doi:10.1007/978-3-319-38791-8_16 fatcat:mclqdno75zgvpaqpy6ofm56s3a

Reordering of IP Packets in Internet [chapter]

Xiaoming Zhou, Piet Van Mieghem
2004 Lecture Notes in Computer Science  
We studied the extent of the reordering in these streams, and observed that most reordered streams have a relative small number of reordered packets: about 14% of all the streams have more than 2 reordered  ...  We also compared the reordered stream ratios in the different directions of Internet paths, and observed that reordered stream ratios are asymmetric, but they vary largely from testbox-to-testbox.  ...  Reordering depends on the network load, although below a certain load very little reordering occurs.  ... 
doi:10.1007/978-3-540-24668-8_24 fatcat:vnsjfhfjhregrkpgfrcyvgtsb4

Quantifying loop nest locality using SPEC'95 and the perfect benchmarks

Kathryn S. McKinley, Olivier Temam
1999 ACM Transactions on Computer Systems  
This article analyzes and quantifies the locality characteristics of numerical loop nests in order to suggest future directions for architecture and software cache optimizations.  ...  Figure 18 quantifies the fraction of references that belong to streams.  ...  Even with these caveats, load/store statistics tend to reflect the behavior of array references.  ... 
doi:10.1145/329466.329484 fatcat:cb2fnleylnfsxpflviy4rrxwve

Quantification of Changes in Metal Loading from Storm Runoff, Merse River (Tuscany, Italy)

Briant A. Kimball, Francesco Bianchi, Katherine Walton-Day, Robert L. Runkel, Marco Nannucci, Andrea Salvadori
2007 Mine Water and the Environment  
The metal loading to the stream was quantified by defining detailed profiles of discharge and concentration, using tracer-dilution and synoptic-sampling techniques.  ...  It is possible that in-stream colloids had relatively more Cu than Mn, while near-stream colloids had relatively more Mn.  ...  The different behavior was attributed to different sources for the elements.  ... 
doi:10.1007/s10230-007-0020-6 fatcat:lth7m33bmbgz3akyvwefnnizyq

Size-Dependent Territoriality of Mottled Sculpin in a Southern Appalachian Stream

J. Todd Petty, Gary D. Grossman
2007 Transactions of the American Fisheries Society  
We quantified the space use behaviors of juvenile and adult mottled sculpin Cottus bairdii over a 3-year period in Shope Fork, western North Carolina.  ...  Our objectives were to (1) quantify home range size, (2) determine whether the fish exhibit territorial behaviors, (3) characterize the relative stability of territories, and (4) relate temporal variation  ...  to observe territorial behaviors in stream fishes.  ... 
doi:10.1577/t06-034.1 fatcat:jq3jbqhiaje63ktcmu4jaziovq

Low threshold for nitrogen concentration saturation in headwaters increases regional and coastal delivery

Noah Schmadel, Judson W Harvey, Richard B Alexander, Elizabeth W Boyer, Gregory E Schwarz, Jesus D Gomez-Velez, Durelle Scott, Christopher P Konrad
2020 Environmental Research Letters  
A consequence of chronic excess nitrogen loading, as supported by theory and field studies in specific watersheds, is saturation of the biogeochemically-mediated nitrogen removal processes that weakens  ...  Threshold behavior indicates that even modest mitigation of nitrogen concentration in river corridors above the threshold can cause a self-reinforcing boost to nitrogen removal.  ...  Quantifying the regional effects of nitrogen concentration saturation We calibrated the nitrogen model to load observations (i.e. mean annual nitrogen loads estimated at 363 monitoring stations spread  ... 
doi:10.1088/1748-9326/ab751b fatcat:acfso7264jgdtfkixentuksn5y

Quantifying Preferences and Responsiveness of Marine Zooplankton to Changing Environmental Conditions using Microfluidics

Nirupama Ramanathan, Oleg Simakov, Christoph A. Merten, Detlev Arendt, Juan Carlos Molinero
2015 PLoS ONE  
Here, we use a microfluidic device to characterize individual behavior of actively swimming zooplankton, and to quantitatively determine their ecological preferendum.  ...  These results set the stage for extensive usage of our microfluidic device to dissect and quantify foraging behavior.  ...  We thus set out to quantify the behavioral responsiveness to a given parameter from the recorded distributions of plankton in our device, taking advantage of the different shapes of the distributions.  ... 
doi:10.1371/journal.pone.0140553 pmid:26517120 pmcid:PMC4627805 fatcat:b4hmjq4b7jgyfoxpk2wmr2gb7e

Removal of terrestrial DOC in aquatic ecosystems of a temperate river network

W. M. Wollheim, R. J. Stewart, G. R. Aiken, K. D. Butler, N. B. Morse, J. Salisbury
2015 Geophysical Research Letters  
We used a unique combination of spatially distributed sampling of three DOC fractions throughout a river network and modeling to quantify the net removal of terrestrial DOC during a summer base flow period  ...  Gridded loading was determined to account for proper location of input along stream reaches.  ...  Net aquatic removal would cause the regression parameters to differ, as would differences in loading directly to small versus large streams.  ... 
doi:10.1002/2015gl064647 fatcat:3zzo2jodundn5lowdjqvvmfmge
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