Re: [deal.II] Modelling Anistropic materials for electrostatic simulations

Hello Dr. Bangerth, Thank you for the reply to my discussion! I greatly I appreciate the help. I did not realize that the flow equations are very similiar if not the same to the electrostatic equations. I am still going through the material and formulating a plan on how to code the solver. Ther

Re: [deal.II] Modelling Anistropic materials for electrostatic simulations

Philip, > In short, I am modeling the maxwell equations for the electric field and > voltage scalar field. The equations that I am using are displayed below: > > div(*E*) = rho / epsilon where epsilon = epsilon_{0} * epsilon_{r} and > rho is the charge density of the material. > > -grad(V) =

[deal.II] Re: Trouble building from source on MacOS

Thanks for the suggestion. I tried building with candi today, but it failed somewhere during the p4est-2.0/FAST build from the look of it. I've been using macports instead of homebrew, and I'm wondering if some of the ports are causing issues. I might try removing all the ports and macports this

Re: [deal.II] Re: Status of matrix-free CUDA support

Steve, Just to add on what Bruno said: Explicit time integration typically requires only a subset of what you need for running an iterative solver (no decision making like in convergence test of conjugate gradient, no preconditioner), so running that should be pretty straight-forward. Best,

[deal.II] Re: Status of matrix-free CUDA support

Steve On Monday, October 29, 2018 at 10:43:48 AM UTC-4, Stephen DeWitt wrote: > > So far I've read through the "CUDA Support" issue > , the "Roadmap for > inclusion of GPU implementation of matrix free in Deal.II" issue >

Re: [deal.II] How to compute the cellwise error of the finite element solution without exact solution?

Chucuim > If I don't have the exact solution, but I want to compute the L2 form of > u_{h}-u_{finest} (i.e. see u_{finest} as the exact solution, and > u_{finest} is the numerical solution with the finest mesh grid among the > series we want to test, for example, the width of the unit meshgri

[deal.II] How to compute the cellwise error of the finite element solution without exact solution?

Dear all, If I don't have the exact solution, but I want to compute the L2 form of u_{h}-u_{finest} (i.e. see u_{finest} as the exact solution, and u_{finest} is the numerical solution with the finest mesh grid among the series we want to test, for example, the width of the unit meshgrid is h =

[deal.II] Re: Status of matrix-free CUDA support

I thought that I'd re-up this thread, since it didn't get any responses. I apologize if the questions are a bit broad. Typically, I spend a bit of time trying to get some code working myself before posting a question here, but I don't currently have a machine with a NVIDIA GPU. If the CUDA suppo

Re: [deal.II] How to restart a time dependent code from its breakpoint?

Dear Chucui, The file in the production code for ASPECT with checkpoint/restart is here: https://github.com/bangerth/aspect/blob/master/source/simulator/checkpoint_restart.cc If a second example would be helpful, we implemented checkpoint/restart in PRISMS-PF using a similar approach: https://git

[deal.II] YIC 2019

Dear deal.II developers and users, European Community on Computational Methods in Applied Sciences (ECCOMAS) has chosen AGH University of Science and Technology to organize Eccomas Young Investigators Conference. YIC primarily aims to bring together young researchers and students working in t

[deal.II] Re: Trouble building from source on MacOS

Jonathan, I'm trying to build version 9.0.1 from source on my Mac. I tried to build > using the deal.ii terminal from the dealii-9.0.0.dmg, figuring it would be > easier to configure using all the spack libraries, etc. It builds, but > fails several tests when I run make test, and I can't insta

[deal.II] Re: Trouble building from source on MacOS

you may try out candi; for your selected needs this should be fine https://github.com/dealii/candi kind regards Uwe -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message bec

Re: [deal.II] How to restart a time dependent code from its breakpoint?

Dear Chucui, I don’t use this functionality myself, so I can only point you to the test suite where its functionality is tested. Here is one example wher

Re: [deal.II] How to restart a time dependent code from its breakpoint?

Dear Jean-Paul, Thanks for your reply! And I am interested in 'the serialization capabilities', can you give me a little example or code to show me how it work. For me the ASPECT library