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Forum: OpenFOAM Running, Solving & CFD

February 18, 2011, 13:14

Replies: 24

Cluster OpenFOAM [Solved]

Views: 14,846

Posted By falcao

Try to install openfoam from ubuntu pack in all...

Try to install openfoam from ubuntu pack in all machines. I think it will work.

Forum: OpenFOAM Running, Solving & CFD

February 18, 2011, 13:02

Replies: 24

Cluster OpenFOAM [Solved]

Views: 14,846

Posted By falcao

May be this is your problem! Usualy the...

May be this is your problem!

Usualy the Solver patch is /home/user/openfoam/user-1.7.0/applicatons/solvers/multiphase/bubblefoam

And tutorial patch is usualy
...

Forum: OpenFOAM Running, Solving & CFD

February 18, 2011, 12:15

Replies: 24

Cluster OpenFOAM [Solved]

Views: 14,846

Posted By falcao

Is the patch of solver and tutorial the same in...

Is the patch of solver and tutorial the same in all PC´s ?

Did you note that the line is .<space>/opt... ?

It shold be work.

Forum: OpenFOAM Running, Solving & CFD

February 18, 2011, 10:45

Replies: 24

Cluster OpenFOAM [Solved]

Views: 14,846

Posted By falcao

Is there another identical machine file, with the...

Is there another identical machine file, with the cpu names and quantity of processors, in the other machine ?

Forum: OpenFOAM Running, Solving & CFD

February 18, 2011, 08:41

Replies: 24

Cluster OpenFOAM [Solved]

Views: 14,846

Posted By falcao

Try to to run mpirun --hostfile host.txt...

Try to to run

mpirun --hostfile host.txt -np 8 icoFoam -parallel

in the folder of the problem, for example
...

Forum: OpenFOAM Running, Solving & CFD

February 16, 2011, 08:48

Replies: 24

Cluster OpenFOAM [Solved]

Views: 14,846

Posted By falcao

If you are using Ubuntu, go to the Fyle...

If you are using Ubuntu, go to the Fyle System/etc/hostname

The file above content the name of your machine. This name have to be the same in machine files, that is a .txt file in the OpenFOAM...

Forum: OpenFOAM Running, Solving & CFD

February 15, 2011, 17:32

Replies: 24

Cluster OpenFOAM [Solved]

Views: 14,846

Posted By falcao

But i think, in your case, the address of the...

But i think, in your case, the address of the solver is wrong.

Try

mpirun --hostfiles machines -np <total numbers of processors> <solver name> - parallel

Where machines is a .txt file in...

Forum: OpenFOAM Running, Solving & CFD

February 15, 2011, 17:01

Replies: 24

Cluster OpenFOAM [Solved]

Views: 14,846

Posted By falcao

This error often occurs when you do not put the...

This error often occurs when you do not put the line . /opt/openfoam171/etc/bashrc as the first line in the files: sudo gedit /etc/profile , sudo gedit ~/.profile and gedit ~/.bashrc

This is to...

Forum: OpenFOAM Running, Solving & CFD

February 14, 2011, 06:56

Replies: 24

Cluster OpenFOAM [Solved]

Views: 14,846

Posted By falcao

An important observation must be made, the PCG...

An important observation must be made, the PCG algorithm, usually used
to calculate the pressure, is resistant to parallelization. We recommend the use of
GAMG algorithm when the parallelization...

Forum: OpenFOAM Running, Solving & CFD

October 20, 2010, 12:54

Replies: 24

Cluster OpenFOAM [Solved]

Views: 14,846

Posted By falcao

Cluster OpenFOAM [Solved]

Importante: A velocidade da rede influencia muito a efetividade do cluster. Redes com longos caminhos a serem percorridos pelo sinal (como a da Unicamp) não são as mais indicadas. O bom eh ter uma...

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