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Predicting the performance of synchronous discrete event simulation

Jinshen Xu, M.J. Chung
2004 IEEE Transactions on Parallel and Distributed Systems  
The effect of load balancing in a synchronous simulation is computed using probability distribution models.  ...  In this paper, we develop a model to predict the performance of synchronous discrete event simulation.  ...  Chung's work was supported in part by the US National Science Foundation under Grant DMI-0313174.  ... 
doi:10.1109/tpds.2004.85 fatcat:bbhjpyfvwvakhod2sli6dvh4uy

Importance of Granular Structure in the Initial Conditions for the Elliptic Flow

R. P. G. Andrade, F. Grassi, Y. Hama, T. Kodama, W. L. Qian
2008 Physical Review Letters  
We show effects of granular structure of the initial conditions (IC) of hydrodynamic description of high-energy nucleus-nucleus collisions on some observables, especially on the elliptic-flow parameter  ...  Such a structure enhances production of isotropically distributed high-pT particles, making v2 smaller there.  ...  We show the results of computations in Section IV, first on transverse-momentum (p T ) spectra, and then on v 2 as function both of pseudo-rapidity η and of p T .  ... 
doi:10.1103/physrevlett.101.112301 pmid:18851277 fatcat:acorvtywvvgxloa2grkz3asxkq

Performance Evaluation of A CMB Protocol

Celia O. Kawabata, Regina C. Santana, Marcos Santana, Sarita Bruschi, Kalinka L. J. Castelo Branco
2006 Proceedings of the 2006 Winter Simulation Conference  
This paper presents the performance evaluation of a CMB (Chandy-Misra-Bryant) protocol from the perspective of execution time. The performance of each logical process in simulation is measured.  ...  In order to analyze the behavior of the simulations some models were simulated using a CMB implementation called ParSMPLX.  ...  the event queue is not empty. • Unnecessary: When the received message is not the event to be executed, but one that enables the execution of another event in the event queue.  ... 
doi:10.1109/wsc.2006.323189 dblp:conf/wsc/KawabataSSBB06 fatcat:wljctcvcxfcnhefajrwm7udgxi

Computation with imprecise probabilities

Lotfi A. Zadeh
2008 2008 IEEE International Conference on Information Reuse and Integration  
The approach which is outlined in the following is rooted in my 1975 paper [5] , and is in the spirit of [3] . The approach is a radical departure from the mainstream.  ...  In effect, computation with imprecise probability distributions may be viewed as an instance of computation with granular probability distributions.  ...  For example, young, middle-aged and old are granular values of the granular variable Age. The probability distribution in Example 2 is an instance of a granular probability distribution.  ... 
doi:10.1109/iri.2008.4582989 dblp:conf/iri/Zadeh08 fatcat:2d76nk5edvamxfqwvua5bhjyqe

Transparent and adaptive computation-block caching for agent-based simulation on a PDES core

Yin Xiong, Maria Hybinette, Eileen Kraemer
2008 2008 Winter Simulation Conference  
We assess the performance of the approach in a benchmark-application.  ...  The potential savings of avoiding a computation entirely may offset the overhead cost of caching.  ...  Typical parallel and distributed discrete event simulations (PDES) recompute events in time stamp order, without exploiting a computational result cache even if events may have been processed earlier.  ... 
doi:10.1109/wsc.2008.4736149 dblp:conf/wsc/XiongHK08 fatcat:ajcv7p3auzcrfichqyajaisgoy

Temporal analysis of acoustic emission from a plunged granular bed

Daisuke Tsuji, Hiroaki Katsuragi
2015 Physical Review E  
In the actual time analysis, the calm time distribution and the decay of the event-occurrence density after the largest event (i.e., Omori-Utsu law) are measured.  ...  We find that the effective shear strain rate is a key parameter to classify the emergence rate of power-law nature and Markovianity in the granular AE events.  ...  Matsuyama for taking the data used in this study.  ... 
doi:10.1103/physreve.92.042201 pmid:26565229 fatcat:yywxfyu3cbecxiyebbtfq6jhze

On the role of fluids in stick-slip dynamics of saturated granular fault gouge using a coupled computational fluid dynamics-discrete element approach

Omid Dorostkar, Robert A. Guyer, Paul A. Johnson, Chris Marone, Jan Carmeliet
2017 Journal of Geophysical Research - Solid Earth  
Analysis of a long time train of slip events shows that the (1) drop in shear stress, (2) compaction of granular layer, and (3) the kinetic energy release during slip all increase in magnitude in the presence  ...  In this paper, we present 3-D discrete element simulations of dry and fluid-saturated granular fault gouge and analyze the effect of fluids on stick-slip behavior.  ...  Support from the technical teams regarding the high performance computational clusters of Empa (Hypatia) and ETH Zurich (Brutus and Euler) is highly appreciated.  ... 
doi:10.1002/2017jb014099 fatcat:pwikuikoovgofjkkpnyjqh4d5i

Granular Computing in the Information Transformation of Pattern Recognition

Hong Hu, Zhongzhi Shi
2007 2007 IEEE International Conference on Granular Computing (GRC 2007)  
The information similarity is the main point in the original insight of Granular Computing (GrC) proposed by Zadeh(1997[1]).  ...  The key points of GrC are (1) there are two granular computing approaches to change a high dimensional complex distribution domain to a low dimensional and simple domain,(2)these two kind approaches can  ...  Just as the above section mentioned, information about events or objects or examples are sampled by the sensors distributed in the granules' centers of a sensordistribution granular system(sdGsys).  ... 
doi:10.1109/grc.2007.42 dblp:conf/grc/HuS07 fatcat:roakaapngnc5lir2gbsro6lsqq

Granular Computing in the Information Transformation of Pattern Recognition

Hong Hu, Zhongzhi Shi
2007 2007 IEEE International Conference on Granular Computing (GRC 2007)  
The information similarity is the main point in the original insight of Granular Computing (GrC) proposed by Zadeh(1997[1]).  ...  The key points of GrC are (1) there are two granular computing approaches to change a high dimensional complex distribution domain to a low dimensional and simple domain,(2)these two kind approaches can  ...  Just as the above section mentioned, information about events or objects or examples are sampled by the sensors distributed in the granules' centers of a sensordistribution granular system(sdGsys).  ... 
doi:10.1109/grc.2007.4403062 fatcat:kd33nbd7zbdedohiqffygqnvu4

Constraining the initial state granularity with bulk observables in Au+Au collisions at \sqrt{s_{\rm NN}}=200 GeV

Hannah Petersen, Christopher Coleman-Smith, Steffen A Bass, Robert Wolpert
2011 Journal of Physics G: Nuclear and Particle Physics  
In this paper we conduct a systematic study of the granularity of the initial state of hot and dense QCD matter produced in ultra-relativistic heavy-ion collisions and its influence on bulk observables  ...  In addition, the influence of changes in the equation of state is studied and the results of our event-by-event calculations are compared to a calculation with averaged initial conditions.  ...  This work was supported in part by U.S. department of Energy grant DE-FG02-05ER41367, NSF grants PHY-09-41373 and DMS-07-57549 and NASA grant NNX09AK60G.  ... 
doi:10.1088/0954-3899/38/4/045102 fatcat:gjsq5ohyvzfbzkwjvymh4hudzu

Efficient execution of Time Warp programs on heterogeneous, NOW platforms

C.D. Carothers, R.M. Fujimoto
2000 IEEE Transactions on Parallel and Distributed Systems  
Using this observation, we devise a single algorithm that mitigates these performance problems and enables the ªbackgroundº execution of Time Warp programs on heterogeneous distributed computing platforms  ...  Index TermsÐDiscrete event simulation, distributed simulation, network of workstations (NOW), time warp, dynamic load balancing. Fig. 10.  ...  PHold Configuration We configure the PHold program to have a one of two computation granularities: null and one millisecond. In the null case, event processing is made as small as possible.  ... 
doi:10.1109/71.841745 fatcat:ctcpguvr3rca3g5m6kni6jhbye

Towards Mobile Internet: Location Privacy Threats and Granular Computation Challenges

Ling Liu, Georgia Institute of Technology
2007 2007 IEEE International Conference on Granular Computing (GRC 2007)  
being embedded in billions of wireless devices such as PDAs, cellular phones, and computers embedded in vehicles (e.g., navigational systems on cars).  ...  ACM conferences, including IEEE International Conference on Data Engineering (ICDE), IEEE 2007 IEEE International Conference on Granular Computing 0-7695-3032-X/07 $25.00  ...  In this keynote, I will discuss location privacy threats and the granular computing challenges for protecting location privacy in the mobile Internet era.  ... 
doi:10.1109/grc.2007.162 dblp:conf/grc/Liu07 fatcat:m5ivcwx64ff6dpqgya5wa673ii

Towards Mobile Internet: Location Privacy Threats and Granular Computation Challenges

Ling Liu, Georgia Institute of Technology
2007 2007 IEEE International Conference on Granular Computing (GRC 2007)  
being embedded in billions of wireless devices such as PDAs, cellular phones, and computers embedded in vehicles (e.g., navigational systems on cars).  ...  ACM conferences, including IEEE International Conference on Data Engineering (ICDE), IEEE 2007 IEEE International Conference on Granular Computing 0-7695-3032-X/07 $25.00  ...  In this keynote, I will discuss location privacy threats and the granular computing challenges for protecting location privacy in the mobile Internet era.  ... 
doi:10.1109/grc.2007.4403056 fatcat:cojehvmqpzh7tmrlxoczc5zbza

Continuously sheared granular matter reproduces in detail seismicity laws [article]

S. Lherminier, R. Planet, V. Levy dit Vehel, G. Simon, L. Vanel, K. J. Måløy, O. Ramos
2019 arXiv   pre-print
Moreover foreshocks and aftershocks are described by Omori laws and inter-event times also follow exactly the same distribution as real earthquakes, showing the existence of memory of past events.  ...  By continuously and slowly shearing a compressed monolayer of disks in a ring-like geometry, our system delivers events of frictional failures with energies following a Gutenberg-Richter law.  ...  The load was also varied between 126 N and 326 N in order to analyze its influence on the energy distribution of the events (Fig. S3) .  ... 
arXiv:1901.06735v2 fatcat:xwftixs5hna37kwevcntd2et5m

Towards a Computer Vision Particle Flow [article]

Francesco Armando Di Bello, Sanmay Ganguly, Eilam Gross, Marumi Kado, Michael Pitt, Lorenzo Santi, Jonathan Shlomi
2020 arXiv   pre-print
In this paper, a computer vision approach to this fundamental aspect of PFlow algorithms, based on calorimeter images, is proposed.  ...  Calorimeter images with a finer granularity than that of the input calorimeter image are also obtained using super-resolution techniques.  ...  From this distribution The average energy profile as a function of radial distance ρ E (r) is computed (as displayed in the left panel) from this 2-D distribution in rings (of surface S(r)) with a width  ... 
arXiv:2003.08863v2 fatcat:z3gdqprufbdezaredcuztwudpe
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