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Forum: OpenFOAM Running, Solving & CFD August 26, 2018, 14:02
Replies: 35
Views: 4,213
Posted By hokhay
I mean server. The one I am using is PowerEdge...

I mean server. The one I am using is PowerEdge R620. It is a dual cpu computer and total of 16 Ram slots. You can find the spec from Dell website. Also OpenFoam is I/O intensitive software, which...
Forum: OpenFOAM Running, Solving & CFD August 25, 2018, 23:28
Replies: 35
Views: 4,213
Posted By hokhay
I don't think there is any way to calculate this....

I don't think there is any way to calculate this. It is just from my experience.

For your reference, I am running a car aerodynamics steady state simulation with 35 millions cell on 12 server...
Forum: OpenFOAM Running, Solving & CFD August 25, 2018, 14:41
Replies: 35
Views: 4,213
Posted By hokhay
I think it's just purely too little RAM and 7...

I think it's just purely too little RAM and 7 millions cell is not small number. My rough guess for 4GB ram, you maybe able to run 2millions cell simulation.

To be honest, your PC is not up to the...
Forum: OpenFOAM Running, Solving & CFD August 25, 2018, 00:37
Replies: 35
Views: 4,213
Posted By hokhay
Just to remind you that the source line needs to...

Just to remind you that the source line needs to place at the first line in the bashrc file. Did you do that?
Forum: OpenFOAM Running, Solving & CFD August 22, 2018, 13:07
Replies: 35
Views: 4,213
Posted By hokhay
I can see that it is trying to look for...

I can see that it is trying to look for simpleFoam at /opt/openfoam6/bin/simpleFoam but the actual location is /opt/openfoam6/platforms/linux64GccDPInt32Opt/bin/simpleFoam on client 1, so it says...
Forum: OpenFOAM Running, Solving & CFD August 22, 2018, 12:50
Replies: 35
Views: 4,213
Posted By hokhay
What error does it show when you type "mpirun...

What error does it show when you type "mpirun --hostfile machines -np 6 simpleFoam -parallel". Can you paste here?
Forum: OpenFOAM Running, Solving & CFD August 22, 2018, 12:18
Replies: 35
Views: 4,213
Posted By hokhay
Can you type "which simpleFoam" on both computers...

Can you type "which simpleFoam" on both computers and show us the output
Forum: OpenFOAM Running, Solving & CFD August 22, 2018, 11:34
Replies: 35
Views: 4,213
Posted By hokhay
U don't need foamJob in this command. Just type...

U don't need foamJob in this command. Just type "mpirun --hostfile machines -np 6 simpleFoam -parallel"
Forum: OpenFOAM Running, Solving & CFD August 21, 2018, 12:58
Replies: 35
Views: 4,213
Posted By hokhay
Have you tried to run the case separately on each...

Have you tried to run the case separately on each machine? Can you specify the command you have type?
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