Search found 4812 matches
- 24 Aug 2011, 14:00
- Forum: ElmerSolver
- Topic: Element coupling
- Replies: 1
- Views: 1997
Re: Element coupling
Hi Alex First of all. We might distinguish explicit and implicit coupling. Implicit coupling of different equations is rather hard since then there needs to be a monolithic matrix equation that includes all the unknowns. The legacy strategy of Elmer, and the one still mainly used, is to have a separ...
- 24 Aug 2011, 13:40
- Forum: Installation & compilation
- Topic: ElmerSolver_mpi and MPICH2 v1.4
- Replies: 3
- Views: 4735
Re: ElmerSolver_mpi and MPICH2 v1.4
Hi The old mpi version of Elmer available at sf.net is certainly outdated. It takes some effort to compile the parallel version under mingw. At least the most developers use Elmer mainly on Unix platforms so this is not of high priority. As an altenative for testing parallel stuff on Windows platfor...
- 22 Aug 2011, 15:19
- Forum: ElmerSolver
- Topic: 2 instances of SaveScalars in sif possible?
- Replies: 3
- Views: 2222
Re: 2 instances of SaveScalars in sif possible?
Hi
The SaveData may have some static settings. So to be totally sure that things are going without problems you could make a copy of the shared library of SaveData under different name, and use that in the Procedure statement.
-Peter
The SaveData may have some static settings. So to be totally sure that things are going without problems you could make a copy of the shared library of SaveData under different name, and use that in the Procedure statement.
-Peter
- 19 Aug 2011, 09:55
- Forum: ElmerSolver
- Topic: Segregated and coupled algorithm
- Replies: 3
- Views: 3571
Re: Segregated and coupled algorithm
Hi cupper Yes, you're right. There are different pros and cons for monolithic and segregated systems. Monolithic systems tend to consume lots of memory and this is amplified by the denser matrix topology of FE when compared to FV. Now segragated schemes split the problem into a number of simpler tas...
- 19 Aug 2011, 09:39
- Forum: ElmerSolver
- Topic: monolithic fsi coding
- Replies: 2
- Views: 1645
Re: monolithic fsi coding
Hi To have everything as a monolithic system is often optimal for the convergence for the coupled nonlinear system but you tend to loose in that the linear system is more difficult to solve than the individual linear systems would be. Still, monolithic approach is sometimes desirable. Now the steps ...
- 19 Aug 2011, 09:30
- Forum: ElmerSolver
- Topic: Transient analysis as a series of steady-state problems
- Replies: 3
- Views: 3102
Re: Transient analysis as a series of steady-state problems
Hi Tibi
ElmerSolver Manual, Chapter "Parallel Runs" (currently Ch. 10).
-Peter
ElmerSolver Manual, Chapter "Parallel Runs" (currently Ch. 10).
-Peter
- 18 Aug 2011, 22:41
- Forum: ElmerSolver
- Topic: Transient analysis as a series of steady-state problems
- Replies: 3
- Views: 3102
Re: Transient analysis as a series of steady-state problems
Hi Sorry, you cannot parallellize the problem like that. The previous timestep has to be resolved before going further and hence the time-integration is doomed to be sequential. However, transient problems tend to parallellize rather nicely (mass matrix dominates i.e. preconditioning is easy) using ...
- 18 Aug 2011, 22:35
- Forum: ElmerSolver
- Topic: Avoid writing .ep file
- Replies: 2
- Views: 1815
Re: Avoid writing .ep file
Hi,
Just omit the keyword "Post File" and none will be written.
-Peter
Just omit the keyword "Post File" and none will be written.
-Peter
- 18 Aug 2011, 18:48
- Forum: Updates
- Topic: Elmer group in LinkedIn
- Replies: 7
- Views: 13779
Elmer group in LinkedIn
Dear Elmer Users, This is just to inform that there is since some time a group "Elmer finite element software" in the LinkedIn professional network. http://www.linkedin.com -> Groups -> Search "Elmer" The group is open to all users and followers of Elmer finite element software. ...
- 16 Aug 2011, 14:49
- Forum: Events
- Topic: Elmer Intensive Course, Sep 7th 2011
- Replies: 0
- Views: 6507
Elmer Intensive Course, Sep 7th 2011
Dear Elmer users, There will be an Elmer Intensive Course taking place on 7th of September 2011. Elmer Intensive Course is intended for people who want to dwell quickly into to the world of Elmer. The participants should preferably have some background in the solution of partial differential equatio...