Search found 1169 matches

by kevinarden
18 Jun 2021, 18:39
Forum: ElmerSolver
Topic: How can I get natural convection to run?
Replies: 1
Views: 44

Re: How can I get natural convection to run?

I don't think you need radiation on all of your boundaries. The boundaries that share nodes between materials will transfer heat through the shared nodes. The diffused boundary transfers heat out of the boundary and is received by another material that does not share nodes. The idealized radiation t...
by kevinarden
18 Jun 2021, 13:23
Forum: Installation & compilation
Topic: PARALLELING COMPUTATION
Replies: 25
Views: 133

Re: PARALLELING COMPUTATION

The executable line is fine, but I would make the argument line just like Rich's.
by kevinarden
18 Jun 2021, 12:51
Forum: Installation & compilation
Topic: PARALLELING COMPUTATION
Replies: 25
Views: 133

Re: PARALLELING COMPUTATION

Can you send a copy of your parallel settings window like Rich did?
by kevinarden
17 Jun 2021, 22:14
Forum: ElmerSolver
Topic: True multiphysics
Replies: 2
Views: 39

Re: True multiphysics

This is a case that was combining the heat equation with the static current, including joule heating. Good discussion, but not sure this case was completely solved, but provides the overall approach.

viewtopic.php?f=3&t=7062&hilit=8mm
by kevinarden
17 Jun 2021, 20:33
Forum: Installation & compilation
Topic: PARALLELING COMPUTATION
Replies: 25
Views: 133

Re: PARALLELING COMPUTATION

You should check that mpiexec.exe exists in your windows installation, for example it does on my W10 desktop, but it does not on my W10 laptop.
by kevinarden
17 Jun 2021, 18:53
Forum: Installation & compilation
Topic: PARALLELING COMPUTATION
Replies: 25
Views: 133

Re: PARALLELING COMPUTATION

If you are on windows you can go to the C drive in explorer and search for mpi to see if it finds any executable starting with mpi such as
mpirun.exe
mpiexec.exe
If it does not find anything then mpi is not installed.

on the unix machine you can do

find /usr -name "mpi*"
by kevinarden
17 Jun 2021, 17:41
Forum: Installation & compilation
Topic: PARALLELING COMPUTATION
Replies: 25
Views: 133

Re: PARALLELING COMPUTATION

If under the run parallel settings, the use parallel check box is on. Then the green start button will run the parallel solver.
by kevinarden
17 Jun 2021, 14:45
Forum: Installation & compilation
Topic: PARALLELING COMPUTATION
Replies: 25
Views: 133

Re: PARALLELING COMPUTATION

Yes it can be used in windows.

You could try mpiexec instead of mpirun, MPICH uses mpiexec.
by kevinarden
17 Jun 2021, 12:56
Forum: Installation & compilation
Topic: PARALLELING COMPUTATION
Replies: 25
Views: 133

Re: PARALLELING COMPUTATION

Good news is that the mesh partition with ElmerGrid work Problem is that last line in the output Unable to start parallel solver means that you do not have the right mpi executable name in executable field, either you have a different mpi solver installed on the system or there is no mpi solver on t...
by kevinarden
17 Jun 2021, 12:01
Forum: Installation & compilation
Topic: PARALLELING COMPUTATION
Replies: 25
Views: 133

Re: PARALLELING COMPUTATION

You go to run, parallel setting, check the box on hot select number of processes.
You will likely have to find the name of the mpi exectuable on the system, you can try the default, but it is probably different.