Results 31 to 40 of about 29,809 (206)
Object-oriented construction of a multigrid electronic-structure code with Fortran 90 [PDF]
, 1999 We describe the object-oriented implementation of a higher-order finite-difference density-functional code in Fortran 90. Object-oriented models of grid and related objects are constructed and employed for the implementation of an efficient one-way ...
Kim, Yong-Hoon +2 more
core +3 more sources
A new wavelet multigrid method for the numerical solution of elliptic type differential equations
Alexandria Engineering Journal, 2018 In this paper, we present a new wavelet multigrid method for the numerical solution of elliptic type differential equations based on Daubechies (db4) high pass and low pass filter coefficients with modified intergrid operators. The proposed method is the
S.C. Shiralashetti +2 more
doaj +1 more source
A hierarchical mesh refinement technique for global 3-D spherical mantle convection modelling [PDF]
Geoscientific Model Development, 2013 A method for incorporating multi-resolution capabilities within pre-existing global 3-D spherical mantle convection codes is presented. The method, which we term "geometric multigrid refinement", is based upon the application of a multigrid solver on non-
D. R. Davies +5 more
doaj +1 more source
Task stalling for a batch of task makespan minimisation in heterogeneous multigrid computing
Computational Science and Techniques, 2021 This paper presents a new algorithm for a batch of task makespan minimisation in heterogeneous multigrid computing. Heterogeneous grids are known to cause straggling task problem that increases task execution makespan.
Albertas Jurgelevičius +2 more
doaj +1 more source
Explicit‐Implicit Material Point Method for Dense Granular Flows With a Novel Regularized µ(I) Model
International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.ABSTRACT The material point method (MPM) is widely employed to simulate granular flows. Although explicit time integration is favored in most current MPM implementations for its simplicity, it cannot rigorously incorporate the incompressible µ(I)‐rheology, an efficient model ubiquitously adopted in other particle‐based numerical methods. While operator‐
Hang Feng, Zhen‐Yu Yin
wiley +1 more source
A cell structure implementation of the multigrid method for the two-dimensional diffusion equation
AIP AdvancesTo solve the two-dimensional diffusion equation using the finite difference method, we propose a simple MATLAB implementation of the multigrid method. The diffusion equation plays a fundamental role in modeling many significant physical phenomena and is ...
Yongho Choi +6 more
doaj +1 more source
A NetCDF version of the two-dimensional energy balance model based on the full multigrid algorithm
SoftwareX, 2017 A NetCDF version of the two-dimensional energy balance model based on the full multigrid method in Fortran is introduced for both pedagogical and research purposes. Based on the land–sea–ice distribution, orbital elements, greenhouse gases concentration,
Kelin Zhuang +2 more
doaj +1 more source
Vectorized multigrid Poisson solver for the CDC CYBER 205 [PDF]
, 1984 The full multigrid (FMG) method is applied to the two dimensional Poisson equation with Dirichlet boundary conditions. This has been chosen as a relatively simple test case for examining the efficiency of fully vectorizing of the multigrid method.
Barkai, D., Brandt, M. A.
core +1 more source
A novel multigrid method for electronic structure calculations
, 2001 A general real-space multigrid algorithm for the self-consistent solution of the Kohn-Sham equations appearing in the state-of-the-art electronic-structure calculations is described.
A. Brandt +33 more
core +1 more source
International Journal for Numerical Methods in Fluids, Volume 98, Issue 4, Page 492-509, April 2026.This paper presents a finite element method for simulating highly viscoelastic flows of pure polymer melts using the Elastic Viscous Stress Splitting formulation. The method avoids higher‐order derivatives in the weak formulation by reformulating the convective term in the constitutive equation.
R. Ahmad, P. Zajac, S. Turek
wiley +1 more source