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Efficient parameter variation sampling for architecture simulations

Feng Lu, R Joseph, G Trajcevski, Song Liu
2011 2011 Design, Automation & Test in Europe  
This paper addresses the problem of efficient and effective parameter variation modeling and sampling in computer architecture simulations.  ...  Toward this we investigated two complementary avenues: (1) adapting low-discrepancy sampling methods for use in Monte Carlo architectural simulations.  ...  ACKNOWLEDGEMENTS The authors would like to thank the anonymous reviewers for their helpful comments. This work is in part supported by NSF grants CAREER CCF-0644332, CNS-0720820 and CNS-0910952.  ... 
doi:10.1109/date.2011.5763250 dblp:conf/date/LuJTL11 fatcat:eylbwpglibduhpnjetl7tgor4q

Considering process variations during system-level power analysis

Saumya Chandra, Kanishka Lahiri, Anand Raghunathan, Sujit Dey
2006 Proceedings of the 2006 international symposium on Low power electronics and design - ISLPED '06  
In this paper, we propose techniques for accurately and efficiently incorporating the effects of process variations into systemlevel power estimation tools.  ...  The proposed methodology combines efficient trace-based analysis, power-state based leakage modeling, and Monte Carlo sampling.  ...  For each simulation, the power models are refined by randomly generating a sample point from a pre-defined distribution of process parameters (e.g., transistor channel lengths), and calculating a variation  ... 
doi:10.1145/1165573.1165654 dblp:conf/islped/ChandraLRD06 fatcat:os76p6tnnfhixfr54catfkkiga

Low power high speed analog-to-digital converter for wireless communications

A. E. Hussein, M. I. Elmasry
2000 Proceedings of the 10th Great Lakes Symposium on VLSI - GLSVLSI '00  
A new ADC architecture is devised. This architecture is memory based, in which the last sample is used to predict the current one, resulting in both power dissipation and energy reduction.  ...  This depends on the nature of the signal itself (i.e how fast its variation). Conclusion The efficient use of previous signal samples may reduce the power dissipation in the A/D converter.  ...  The higher value for this factor means less power dissipation and higher efficiency factor. The power efficiency factor for the different architectures in table 2 has been plotted in figures 5, 6 .  ... 
doi:10.1145/330855.331016 dblp:conf/glvlsi/HusseinE00 fatcat:nwjxrgjonjh7zjssv2smratd2e

Adaptive data sensing rate in ad-hoc sensor networks for autonomous transport application

Xinwei Wang, A Jabbari, R Jedermann, R Laur, W Lang
2010 2010 13th International Conference on Information Fusion  
The WSN is applied to monitor the environmental parameters e.g. temperature and humidity, inside containers for the food transportation.  ...  Both the simulation and implementation results show that the algorithm can autonomously concentrate on the problematic situation and efficiently reduce the redundant data measurements.  ...  The sampling rate of each participant node has remarkable influence on data fusion efficiency.  ... 
doi:10.1109/icif.2010.5711911 fatcat:hhlq3geu2jhpllad5thaerhmfy

Variational optimization in the AI era: Computational Graph States and Supervised Wave-function Optimization [article]

Dmitrii Kochkov, Bryan K. Clark
2018 arXiv   pre-print
We demonstrate CGS and SWO by optimizing for the ground state wave-function of 1D and 2D Heisenberg models on nine different variational architectures including architectures not previously used to represent  ...  One interesting application of this architectural exploration is that we show that fully convolution neural network wave-functions can be optimized for one system size and, using identical parameters,  ...  Acknowledgements We thank Ryan Levy for the DMRG data in fig. S1 . We acknowledge useful conversations with Di Luo.  ... 
arXiv:1811.12423v1 fatcat:tv2acthwevdw5ldbsakact3te4

Maximum Power Point Tracking Using DRCC and MRAC With Modified Mit Rules For PV Cells

K. SriRakavi
2016 International Journal Of Engineering And Computer Science  
which provides promising increase in tracking efficiency and accuracy.  ...  control (RCC), and the model reference adaptive control (MRAC) are used in Photovoltaic systems to reduce pertabations.This paper includes the improved version of both RCC and MRAC ,a model two layer architecture  ...  Sgn K= -sgn Fig1.Simulation output of DRCC The DRCC uses the integer time delay which provides delay to the sample time so the efficient duty cycle is achieved.  ... 
doi:10.18535/ijecs/v5i11.09 fatcat:4zbijdruxje4doj7ilwp4tctny

TaskPoint: Sampled simulation of task-based programs

Thomas Grass, Alejandro Rico, Marc Casas, Miquel Moreto, Eduard Ayguade
2016 2016 IEEE International Symposium on Performance Analysis of Systems and Software (ISPASS)  
Sampled simulation is a mature technique for reducing simulation time of single-threaded programs, but it is not directly applicable to simulation of multi-threaded architectures.  ...  In this paper, we propose TaskPoint, a sampled simulation technique for dynamically scheduled task-based programs.  ...  Afterwards, we simulate the lowpower architecture using the same sampling parameters.  ... 
doi:10.1109/ispass.2016.7482104 dblp:conf/ispass/GrassRCMA16 fatcat:tadft4b5ejbapjqyz3jdnccs74

Identifying hadronic charmonium decays in hadron colliders

Nicolo De Groot, Sergi Castells
2020 SciPost Physics Core  
The algorithm is able to identify hadronic J/\psiJ/ψ decays with an efficiency of 36% while suppressing a background of quark and gluon jets by a factor 100.  ...  Acknowledgments NdG would like to thank the Duke University physics department for their hospitality.  ...  We also investigate the stability of the network performance under variations of the simulation parameters.  ... 
doi:10.21468/scipostphyscore.2.2.008 fatcat:hz3zxwr2sfdz3k6jguiikexdzu

Identifying hadronic charmonium decays in hadron colliders [article]

Nicolo de Groot, Sergi Castells
2020 arXiv   pre-print
The algorithm is able to identify hadronic J/ψ decays with an efficiency of 36% while suppressing a background of quark and gluon jets by a factor 100.  ...  Acknowledgments NdG would like to thank the Duke University physics department for their hospitality.  ...  Mixed background test samples contain 50% quark Table 4 : 4 Variations in the AuC for different Pythia tunes Parameter +variation -variation Var1: UE activity +0.001 +0.005 Var2: jet shapes and  ... 
arXiv:1910.05334v4 fatcat:iqrrgiu6szfpxozeo7msgxmw2a

Efficient Uncertainty Modeling for System Design via Mixed Integer Programming [article]

Zichang He, Weilong Cui, Chunfeng Cui, Timothy Sherwood, Zheng Zhang
2019 arXiv   pre-print
We also develop a novel mixed-integer programming method to select a small number of uncertain parameter samples for detailed simulations.  ...  With a few highly informative simulation samples, an accurate surrogate model is constructed in place of cycle-level simulators for various architectural uncertainty analysis.  ...  Given the carefully selected parameter samples, we call a high-fidelity cycle accurate simulator (e.g., the DRAMSim2 [19] for a DRAM) to simulate sample ξ i for i = 1, 2 . . . , M .  ... 
arXiv:1907.05700v2 fatcat:nzulnn6ebncv7pzazyhql7rqzy

A Cross-Core Performance Model for Heterogeneous Many-Core Architectures [chapter]

Rui Pinheiro, Nuno Roma, Pedro Tomás
2017 Lecture Notes in Computer Science  
The devised predictor is easily integrated in most system schedulers, providing the ability to periodically determine whether a certain thread is running in the most efficient core-architecture.  ...  The devised predictor is based on a linear regression model that considers several different parameters of the many-core processor architectures, including the cache size, issuewidth, re-order buffer size  ...  parameter variations.  ... 
doi:10.1007/978-3-319-61982-8_11 fatcat:kfh7wria5bbjzk36ui3jlzeuni

Investigating the influence of geometrical traits on light interception efficiency of apple trees: A modelling study with MAppleT

Liqi Han, Evelyne Costes, Frederic Boudon, Thomas Cokelaer, Christophe Pradal, David Da Silva, Robert Faivre
2012 2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications  
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not.  ...  Lavergne (Univ. of Montpellier I) for scientific discussions on Markovian models and sensitivity analyses, and Bertrand Pitollat for his helpful support for computing parallel simulations on cluster.  ...  We also thank Agropolis Fundation for its support to OpenAlea platform.  ... 
doi:10.1109/pma.2012.6524827 fatcat:timqoe4vvfhkva7vemgtlilqhm

An off-chip input capacitor-less boost converter with fast MPPT for energy harvesting

Sangkwon Lee, Jinseong Jeong
2014 IEICE Electronics Express  
Power conversion efficiency of the harvesting system also improves due to the fast V MPP sampling. For the scenario used in this paper, the overall efficiency improves from 70% to 85%.  ...  The proposed architecture can sample V MPP more than 100 times faster than the conventional architecture.  ...  In this simulation, V TEG is sampled every 10 µs and total simulation time is 150 µs for both cases.  ... 
doi:10.1587/elex.11.20140385 fatcat:4tbnciydsre7tfdzoe74zqieem

TSS: Applying two-stage sampling in micro-architecture simulations

Zhibin Yu, Hai Jin, Jian Chen, L.K. John
2009 2009 IEEE International Symposium on Modeling, Analysis & Simulation of Computer and Telecommunication Systems  
Accelerating micro-architecture simulation is becoming increasingly urgent as the complexity of workload and simulated processor increases.  ...  This paper presents a novel twostage sampling (TSS) scheme to accelerate the sampling-based simulation.  ...  The sampling strategy affects simulation results and efficiency largely.  ... 
doi:10.1109/mascot.2009.5366603 dblp:conf/mascots/YuJCJ09 fatcat:3so3kq4rsjalvowd4f3tee3oia

Power Reduction Technique for Successive-Approximation Analog-to-Digital Converters

Dragan B. Stankovic, Mile K. Stojcev, Goran Lj. Djordjevic
2007 2007 8th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services  
Metrics for evaluating energy efficiency of the conversion process, called energy reduction factor, F er , is involved.  ...  Simulation results show that energy saving per conversion cycle of up to 25 % can be obtained.  ...  Parameters of input signals, for both input signals are defined in Table III. TABLE III PARAMETERS OF THE ANALOG INPUT Figure 5 presents simulation results related to periodic input signal.  ... 
doi:10.1109/telsks.2007.4376012 fatcat:kmvzkcjrmfal7k3cpow2k23wmq
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