• Long has extensively focused his research on computational science particularly computational fluid dynamics, and massively parallel computers, and has developed efficient algorithms for solving mathematical model equations. (wikipedia.org)
  • In 1989, he conducted a research study which explained the solution method aimed at the solution of 3D and Navier-Stokes equations with the massively parallel connection machine. (wikipedia.org)
  • Massively Parallel Front Tracking In Computational Geoscience Workshop, 18-20 January 2012 in Geilo . (simula.no)
  • The core algorithm is optimized for massively parallel execution on graphics processing units (GPUs) and is based on a unique dissection of the inner body shell. (cambridge.org)
  • Furthermore, algorithms are developed to perform massively parallel computations to allow simulation of turbulent flow directly or using highly advanced turbulence models. (tudelft.nl)
  • On Day 3 of GTC, HPC architect and Ogden prize winner Dr. Alan Gray from the University of Edinburgh described his use of C, MPI and CUDA on an NVIDIA Tesla -powered Cray XK6 hybrid supercomputer to run massively parallel Lattice-Boltzmann methods . (nvidia.com)
  • In one case, massively parallel (MP) simulations for grain evolution and microcracking in alumina stronglink materials were dynamically coupled. (sandia.gov)
  • The optimal solution of the objective function is estimated with genetic algorithm. (hindawi.com)
  • Optimization is done with genetic algorithm (GA), a heuristic optimization algorithm. (hindawi.com)
  • Sandia National Laboratories has developed an agent-based model of critical US infrastructures using time-dependent Monte Carlo methods and a genetic algorithm learning classifier system to control decision making. (sandia.gov)
  • A number of groups within DCSE are actively developing methods for the simulation of fluid-fluid and fluid-solid flow, based on very diverse methodology, targeted at their own particular applications that range from modeling scour to chemical reactors.In many applications only fully coupled multiphysics simulations can accurately model intricate processes. (tudelft.nl)
  • The group is working on fundamental numerical and high performance computing algorithms for integral equations, partial differential equations, scientific machine learning, inverse problems, model reduction, and linear and nonlinear solvers. (utexas.edu)
  • Together with V. Ahuja, he also developed algorithms and software to solve Maxwell's equations for electromagnetic propagation on parallel computers. (wikipedia.org)
  • Parallel and simultaneous computation of eikonal and transport equations by taking full advantage of GPU computer architecture In Jena, Germany . (simula.no)
  • We suggest a multirate Neumann--Neumann waveform relaxation algorithm to solve two heterogeneous coupled heat equations. (lu.se)
  • The aim of this work is to present a high order, parallel, multirate method for two heterogeneous coupled heat equations which could be applied to FSI problems. (lu.se)
  • The mission of the Parallel Algorithms for Data Analysis and Simulation (PADAS) group is to integrate applied mathematics and computer science to design and deploy algorithms for grand challenge problems that scale to leadership computing platforms. (utexas.edu)
  • His research works are focused on various aspects of applied mathematics, and computational science with a particular emphasis on computational fluid dynamics, modernizing STEM education, artificial intelligence, rarefied gas dynamics, and parallel computing. (wikipedia.org)
  • Simulation ideally bridges the gap of experiment and traditional theory by taking advantage of state-of-the-art development in applied mathematics, computer science, and high performance computers. (inria.fr)
  • ABSTRACT We used computer simulation to determine variation in gene, heterozygous and homozygous frequencies induced by 4 different approaches to thalassaemia. (who.int)
  • A stochastic simulation algorithm is used to obtain an exact realization of the process at the mesoscopic scale (in parallel). (uu.se)
  • We developed and validated an independent stochastic simulation model to estimate effects of dilution on PPA and efficiency of a 2-stage pooled real-time reverse transcription PCR testing algorithm. (cdc.gov)
  • Long, along with E. Alpman showed that the Reynolds stress turbulence model was a complete model, he examined separated turbulent flow simulations. (wikipedia.org)
  • Journal of Parallel and Distributed Computing. (illinois.edu)
  • This paper presents a fast surface voxelization technique for the mapping of tessellated triangular surface meshes to uniform and structured grids that provide a basis for CFD simulations with the lattice Boltzmann method (LBM). (cambridge.org)
  • Because the Lattice-Boltzmann method generally needs only nearest neighbor information and the data volume can be divided into spatially contiguous blocks along one axis, the algorithm was an ideal candidate for NVIDIA's SIMD architecture. (nvidia.com)
  • He referred to a library called Ludwig, a versatile code for the simulation of Lattice-Boltzmann models in 3D on cubic lattices. (nvidia.com)
  • Then, we use confocal microscopy experiments and Monte Carlo simulations spanning a broad range of volume fractions and attraction strengths to show that disordered clusters form near coexistence boundaries, whereas oriented strands persist with strong attractions. (nature.com)
  • A simulation algorithm based on Monte Carlo method and a directed Acyclic Graph has been developed and applied for maintenance optimization [ 4 ]. (hindawi.com)
  • This tutorial surveys the state of the art in quasi-Monte Carlo rendering algorithms as used for image synthesis in the movie industry and product design. (edu.au)
  • The tutorial explains how to generate transport paths using quasi-Monte Carlo points, and presents deterministic parallel algorithms for image synthesis. (edu.au)
  • Techniques like high performance ray tracing, the high speed generation of (t, s)-sequences, parallel quasi-Monte Carlo integration, or treating weak singularities in a robust way have many applications outside computer graphics, too. (edu.au)
  • In this paper we present two parallel Monte Carlo based algorithms for pricing multi--dimensional Bermudan/American options. (hal.science)
  • Working on High Performance Computing and fundamental Numerical Analysis Algorithms for problems in science, engineering, and medicine. (utexas.edu)
  • Mark has over twenty years of experience developing software for GPUs, ranging from graphics and games, to physically-based simulation, to parallel algorithms and high-performance computing. (nvidia.com)
  • The results of the computational experiments are presented, and the accuracy and efficiency of the parallel algorithm is tested on real industrial geometries. (degruyter.com)
  • Numerical simulations of particulate suspensions via a discretized Boltzmann equation. (crossref.org)
  • But leveraging this opportunity requires a new generation of ambitious numerical simulations. (harvard.edu)
  • Most of the NPP MS optimization methods integrate the PSA optimization techniques with the optimization algorithms [ 1 , 2 ]. (hindawi.com)
  • An Evaluation of Implementations of the CMB Parallel Simulation Algori" by JosĂ© Miguel, Agustin Arruabarrena et al. (purdue.edu)
  • A model of a message-passing network is used to analyze the behavior of three implementations of the Chandy-Misra-Bryant parallel simulation algorithm. (purdue.edu)
  • The design and deployment of algorithms that scale well on such platforms will be critical for exploiting the new architectures effectively. (utexas.edu)
  • He is a Professor Emeritus of Computational Science, Mathematics, and Engineering at The Pennsylvania State University, and is most known for developing algorithms and software for mathematical models, including neural networks, and robotics. (wikipedia.org)
  • In this paper, we consider parallel numerical algorithms for solving mathematical models describing the process of filtration, filtering solid particles out of liquid oil. (degruyter.com)
  • Rarefied Gas Dynamics: Theory and Simulations, Vol. 159 of Prog. (crossref.org)
  • A Parallel 3D Front Propagation Algorithm for Simulation of Geological Folding on GPUs In EAGE 74th Conference & Exhibition, Copenhagen , Edited by Eage . (simula.no)
  • In particular, Summit boasts lots of graphical processing units, or GPUs, that excel at parallel processing. (harvard.edu)
  • Lockhart is recognized for contributions in scalable iterative solvers using node-aware communication and low synchronization algorithms to reduce communication bottlenecks on supercomputers. (utah.edu)
  • Our particular interests include advanced architecture design and evaluation, including Beyond Moore capabilities, scalable system software, scalable input/output, and algorithms. (sandia.gov)
  • Our efforts in scalable computer architecture seek to explore advancements in the design and integration of processors, memory, and networks necessary to effectively deploy and use the largest parallel computing systems in the world. (sandia.gov)
  • Effective use of extreme-scale computing systems depends on the availability of scalable parallel algorithms. (sandia.gov)
  • Core areas of competency are lightweight operating systems, multi-threaded runtime systems, high-performance interconnect APIs, parallel I/O and file systems, and scalable system management infrastructure software. (sandia.gov)
  • A domain is conventionally defined as a stationary sub-region of the simulated system in a domain-decomposition scheme for molecular dynamics (MD) simulations on parallel computers. (elsevierpure.com)
  • Herein, classical molecular dynamics simulations are performed to investigate the effect of edge mode on mass sensing for a doubly clamped strained graphene resonator. (mdpi.com)
  • Flow-enhanced nucleation of the crystal phase under shear and uniaxial extension for a monodisperse melt of n -pentacontahectane (C 150 H 302 or C150) chains was studied by nonequilibrium molecular dynamics simulation. (aip.org)
  • However, the associated challenge of closing the gap between idealized (largely empirically-based) modeling and high-end first principles based simulations of mostly individual plasma dynamics is formidable. (inria.fr)
  • Significant recent progress in simulations of fine-scale turbulence and in large-scale dynamics of magnetically confined plasmas has been enabled by access to terascale supercomputers. (inria.fr)
  • His background applies to advanced computer simulation, algorithm development, parallel computing, storing and search of massive chemical datasets, and the mathematical description of chemical dynamics as they pertain to molecular design. (thoughtworks.com)
  • A theoretical model is proposed for the estimation of the complexity of the given parallel algorithm and a scalability analysis is done on the basis of this model. (degruyter.com)
  • Integrating active noise reduction (ANR) techniques with speech enhancement algorithms could solve these limitations of modern electronic HPDs. (cdc.gov)
  • Examines formal concepts of algorithm efficiency including Big O, Theta, and NP theory. (muskingum.edu)
  • We used these data to validate a stochastic model to estimate optimal pool size, efficiency, and expected positive percent agreement (PPA) of a 2-stage pooled testing algorithm that takes into account prevalence, viral load distribution, and assay analytical sensitivity. (cdc.gov)
  • Ishii is recognized for developing lightweight, dimension-parameterized, parallel meshing algorithms with a focus on scalability and improving total time-to-solution for engineering applications. (utah.edu)
  • Groover's quantum algorithm implemented on contemporary computer is characterized by exponential complexity which is shown in the Fig. 1. (lvee.org)
  • Increase of processing time of sequential algorithm on the Intel Xeon E7-4860 processor during the simulation of the quantum computer with deferent size of quantum register. (lvee.org)
  • Parallel computer simulation was used to study temperature changes in the knee. (actapress.com)
  • ABMs are typically implemented as computer simulations , either as custom software, or via ABM toolkits, and this software can be then used to test how changes in individual behaviors will affect the system's emerging overall behavior. (wikipedia.org)
  • While the goal of creating accurate modeling algorithms is to advance biological research, the research on this topic is a multidisciplinary effort drawing on mathematics, physics, and computer science. (tu-dresden.de)
  • The characteristics of the model, the organization of the logical processes that constitute the simulator and the characteristics of the host parallel computer have a definite influence on the achieved performance, measured in terms of speedup. (purdue.edu)
  • Scientists will make those improved estimations by comparing the new observations to computer simulations of the universe with different values for the various parameters - such as the nature of the dark energy pulling the universe apart. (harvard.edu)
  • The performance of oil filters used in the automotive industry can be significantly improved, especially when computer simulation is an essential component of the design process. (degruyter.com)
  • He is working in the field of 3D applications, Nu¬merical Mathematics and Parallel Algorithms and is responsible for research projects on the areas of 3D rapid prototyping, 3D rapid manufacturing, computer mathematics, simulation models for traffic control. (idtechex.com)
  • Computer simulation has helped science malaria, has now become a socioeconomic in general, and medicine in particular, burden for many countries [ 2,3 ]. (who.int)
  • With the exception of the extremely a computer simulation, we investigated rare mutations, only those individuals the effect on the population disease born to 2 gene carriers (heterozygotes or gene frequency and the frequencies of homozygotes) may develop thalassaemia heterozygous and homozygous individuals major. (who.int)
  • The project will develop and implement algorithms for parallel processing of radiosity and ray tracing computations. (europa.eu)
  • The performance of the presented grid generation procedure is superior to the performance of the GPU-accelerated flow field computations per time step which allows efficient fluid-structure interaction simulations, without noticeable performance loss due to the dynamic grid update. (cambridge.org)
  • Ongoing projects include applications tumor growth modeling, direct numerical simulation of particulate flows, medical image analysis, additive manufacturing, plasma physics, and remote sensing. (utexas.edu)
  • Equally challenging is the modeling of a fluid or particle flow interacting with electromagnetic fields or the simulation of the flow of multiple species that are chemically reacting.Therefore, this is another point of focus of research within DCSE.In reality flow conditions, the geometry of the flow domain and material properties are only known with a problem specific degree of uncertainty. (tudelft.nl)
  • There have been extended efforts on designing algorithms for faster simulation, and the evolution time T for the simulation greatly affect algorithm runtime as expected. (dagstuhl.de)
  • A Semi-Ordered Fast Iterative Method (SOFI) for Monotone Front Propagation in Simulations of Geological Folding In The 19th International Congress on Modelling and Simulation (MODSIM2011) . (simula.no)
  • A Semi-Ordered Fast Iterative Method (SOFI) for Monotone Front Propagation in Simulations of Geological Folding In MODSIM2011, 19th International Congress on Modelling and Simulation , Edited by F. Chan , D. Marinova and B. Anderssen . (simula.no)
  • Modelling and Simulation Society of Australia and New Zealand, 2011. (simula.no)
  • This research effort focuses on methodology for quantifying the effects of model uncertainty and discretization error on computational modeling and simulation. (sandia.gov)
  • Importantly, the parallel LKMC solver utilizes particle-based parallel decomposition allowing efficient use of cores over highly heterogeneous regions of the domain. (frontiersin.org)
  • Dr. Gray pointed out that running algorithms on many cores and many machines would be a bigger challenge if we did not have well-tested and proven libraries. (nvidia.com)
  • In parallel, we have developed algorithms to estimate (origin-destination) OD-matrices from sensor observations and we are in the process of validating their performance. (trb.org)
  • [2] Agent-based modeling is related to, but distinct from, the concept of multi-agent systems or multi-agent simulation in that the goal of ABM is to search for explanatory insight into the collective behavior of agents obeying simple rules, typically in natural systems, rather than in designing agents or solving specific practical or engineering problems. (wikipedia.org)
  • Such models, known as N-body simulations, capture the behavior of the dark matter, a mysterious and invisible force that makes up 27 percent of the universe and interacts only via gravity. (harvard.edu)
  • New models based on conformational invariants for Kuhn segments are proposed and shown to describe the simulation data more accurately than those based on conformational behavior of entire chains. (aip.org)
  • This unique definition necessitates a topology based neighbor search as a preprocessing step, but also enables parallel implementation. (cambridge.org)
  • A data decomposition method is used to develop a parallel algorithm, where the domain is distributed among the processors by using a structured reference grid. (degruyter.com)
  • His research has been focused in the fields of computational science, computational neuroscience, cognitive robotics, parallel computing, and software engineering. (wikipedia.org)
  • A New Parallel 3D Front Propagation Algorithm for Fast Simulation of Geological Folds In The International Conference on Computational Science, ICCS 2012 , Edited by H. Ali , Y. Shi , D. Khazanchi , M. Lees , D. G. van Albada , J. Dongarra , P. M. A. Sloot and J. Dongarra . (simula.no)
  • Cambridge, MA -- Collectively clocking in at nearly 60 trillion particles, a newly released set of cosmological simulations is by far the biggest ever produced. (harvard.edu)
  • In the second step, the collision detection and handling between a set of sphere colliders and a cloth model are performed in parallel. (springer.com)
  • [6] MPI is now a widely available communications model that enables parallel programs to be written in languages such as C , Fortran, Python , etc. [8] The MPI specification has been implemented in systems such as MPICH and Open MPI . (wikipedia.org)
  • Simulation techniques for multiphase flow have not yet reached the same level of maturity. (tudelft.nl)
  • In 2019, he presented a review of artificial general intelligence (AGI), characterized the current AGI as Narrow AI which focuses on purpose-built applications, formulated by the cumulation of well-recognized algorithms, and proposed a framework as well. (wikipedia.org)
  • The Simula programming language, developed in the mid 1960s and widely implemented by the early 1970s, was the first framework for automating step-by-step agent simulations. (wikipedia.org)
  • Ishii is the main developer for the University of Utah's Dendro-KT framework for four-dimensional adaptivity and parallel in time formulations. (utah.edu)
  • Comparison of Olib library performance with parallel processing and the NumPy (test for 14 qubits and processor Intel Core i7 920). (lvee.org)
  • As the number of nodes in a cluster increases, the rapid growth in the complexity of the communication subsystem makes message passing delays over the interconnect a serious performance issue in the execution of parallel programs . (wikipedia.org)
  • Even though libraries like cuBLAS, cuFFT and Ludwig provide the infrastructure for parallelizing algorithms, non-optimized code will always give poor performance. (nvidia.com)
  • We also evaluate the performance of both the algorithms in a desktop grid environment. (hal.science)
  • Computational materials simulations have traditionally focused on individual phenomena: grain growth, crack propagation, plastic flow, etc. (sandia.gov)
  • In this paper, we present a parallel cloth simulation with an efficient collision detection algorithm for interactive AR applications. (springer.com)
  • Developing and Implementing Parallel Algorithms for Fold Simulations in 3D In Presented during a workshop at Simula: Using the GPU for Scientific Computing: coding concepts and a look at applications in structural geology http://simula.no/intranet/news/using-the-gpu-for-scie\ ntific-computing-coding-concepts-and-a-look-at-appl . (simula.no)
  • The need for accurate simulation of fluid flow in very diverse applications has been one of the major drivers behind the development of computational methods in general since the middle of the 20th century.Numerical methods for the simulation for single-phase flow have reached a very high Technology Readiness Level. (tudelft.nl)
  • He developed a new efficient computational aeroacoustics algorithm for the prediction of aerodynamic noise. (wikipedia.org)
  • The challenge of mobile tracking lies of course in finding efficient algorithms that determine the 3D pose of a mobile device fast and robustly. (tugraz.at)
  • Quantum algorithms are very difficult for simulation in contemporary computers because of their calculation complexity. (lvee.org)
  • Core areas of competency are post-CMOS processors, quantum information processing, simulation of solid state and quantum devices, and development of computing methods to support materials and device simulations. (sandia.gov)
  • Later on, he presented an in-depth evaluation of the gas dynamic models, and discussed the Navier-Stokes method and a molecular simulation methods. (wikipedia.org)
  • A version of the time-parallel algorithm parareal is analyzed and applied to stochastic models in chemical kinetics. (uu.se)
  • Made up of more than 160 simulations, it models how particles in the universe move about due to their gravitational attraction. (harvard.edu)
  • Previous work shows that agent-based simulations models have the potential to improve the accuracy of complex system forecasting and to provide new insights into the factors that are the primary drivers of emergent behaviors in interdependent systems. (sandia.gov)
  • The MPI library is used to implement the data communication part of the algorithm. (degruyter.com)
  • Preliminary results for a circumaural HPD constructed to implement the concept will be presented for comparison with the simulation. (cdc.gov)
  • Decrease of time of register simulation which consists of 13 qubits when different threads on the processor Intel Core i5-2400 and single channel memory and dual-channel memory DDR3 are used. (lvee.org)
  • Difference in the transfer of the random-access memory has an important impact on the minimum time execution of the algorithm, which for the dual-channel memory is 5,107 seconds and for the single channel memory is 8,916 seconds. (lvee.org)
  • Decrease of time of register simulation which consists of 13 qubits when used different threads on the processor Intel Core 2 Quad Q8400. (lvee.org)
  • By using four threads the execution time of the algorithm is 31,049 seconds and for eight threads, with support of HT Technology it decreases to 29,902 seconds. (lvee.org)
  • A. Gevorkyan, H. Abajyan and H. Sukiasyan, "A New Parallel Algorithm for Simulation of Spin-Glass Systems on Scales of Space-Time Periods of an External Field," Journal of Modern Physics , Vol. 2 No. 6, 2011, pp. 488-497. (scirp.org)
  • The study presents the aspect of the quantum simulation of the Groover's algorithm using contemporary parallel processors with shared memory. (lvee.org)
  • Tested platform used single-channel memory with 10,6 GB/s capacity but processor Core 2 Quad in comparison to the modern processors Core i5/i7 and Xeon doesn't have integrated DDR3 memory controller and that probably significantly slows down the communication process when the algorithm is processed. (lvee.org)
  • The team designed the codebase for AbacusSummit - called Abacus - to take full advantage of Summit's parallel processing power, whereby multiple calculations can run simultaneously. (harvard.edu)
  • Running N-body calculations using parallel processing requires careful algorithm design because an entire simulation requires a substantial amount of memory to store. (harvard.edu)
  • Lockhart has made contributions in parallel communication, core parallel numerical algorithms, and advancing capabilities of large-scale predictive simulation. (utah.edu)
  • During the analysis, the Olib library was used, which supports parallel computing. (lvee.org)
  • Spike responses of the biomimetic afferents are then collected for analysis by rate and temporal coding algorithms. (nature.com)