help, i always get this error: mpirun noticed that process rank 0 with PID 1715 on node ceeckh exited on signal 8 (Floating point exception). everytime i run parallel. can you pls kindly advice on this?
I am getting error - WARNING: Linux kernel CMA support was requested via the btl_vader_single_copy_mechanism MCA variable, but CMA support is not available due to restrictive ptrace settings. The vader shared memory BTL will fall back on another single-copy mechanism if one is available. This may result in lower performance. Local host: DESKTOP-38IC7BI -------------------------------------------------------------------------- [DESKTOP-38IC7BI:15728] 3 more processes have sent help message help-btl-vader.txt / cma-permission-denied [DESKTOP-38IC7BI:15728] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages
hi evry body please if someone can help me in this case cause when i type in mpirun -np 2 pimpleFoam -parallel >> logSimulation i have this message [:01251] 1 more process has sent help message help-btl-vader.txt / cma-permission-denied [:01251] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages
Hello Using OpenFOAM v5.0 and gmsh 3.0.6 I got an error when calling gmesh. An alternative approach to reproduce this tutorial is by: 0. Go to your working directory by typing run or whatever corresponds. 1. Copy the airFoil2D tutorial to your working directory: cp -r $FOAM_TUTORIALS/incompressible/simpleFoam/airFoil2D/ . 2. Do not change the boundary conditions in this case, and use the simple version of the decomposeParDict available in the directory system of the case file. 3. follow the tutorial since the step decomposePar: 4. Visualise with paraFoam By the way, thank you very much four your video.
Thank you very much! This video is really helpful and concise! I build a model using OpenFOAM and try to run the model in parallel. When the size of the mesh is about 700M, the program goes well. When I improve the number of cells and the size of the mesh becomes 5G some errors happen. I tried to use 8 cores for parallel calculation, the errors are: (1)7 more processes have sent help message help-btl-vader.txt / cma-permission-denied (2)mpirun detected that one or more processes exited with non-zero status, thus causing the job to be terminated. Could you give me some help about how to solve this problem? p.s. The size of the mesh which generated by blockMesh is about 5G. The solver I used is rhoPimpleFoam. My computer has 8 cores and 16G RAM.
Well, that has to do with the basic issue of parallelism. If your case does not have enough effectively parallelizable work (not enough cells), then the overhead associated with parallelization will outweigh any benefit.
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help, i always get this error: mpirun noticed that process rank 0 with PID 1715 on node ceeckh exited on signal 8 (Floating point exception).
everytime i run parallel. can you pls kindly advice on this?
Can you make a video to run OpenFoam case in parallel on HPC ?
I am getting error -
WARNING: Linux kernel CMA support was requested via the
btl_vader_single_copy_mechanism MCA variable, but CMA support is
not available due to restrictive ptrace settings.
The vader shared memory BTL will fall back on another single-copy
mechanism if one is available. This may result in lower performance.
Local host: DESKTOP-38IC7BI
--------------------------------------------------------------------------
[DESKTOP-38IC7BI:15728] 3 more processes have sent help message help-btl-vader.txt / cma-permission-denied
[DESKTOP-38IC7BI:15728] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages
hi evry body
please if someone can help me in this case cause when i type in mpirun -np 2 pimpleFoam -parallel >> logSimulation
i have this message
[:01251] 1 more process has sent help message help-btl-vader.txt / cma-permission-denied
[:01251] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages
Hello
Using OpenFOAM v5.0 and gmsh 3.0.6 I got an error when calling gmesh.
An alternative approach to reproduce this tutorial is by:
0. Go to your working directory by typing run or whatever corresponds.
1. Copy the airFoil2D tutorial to your working directory:
cp -r $FOAM_TUTORIALS/incompressible/simpleFoam/airFoil2D/ .
2. Do not change the boundary conditions in this case, and use the simple version of the decomposeParDict available in the directory system of the case file.
3. follow the tutorial since the step decomposePar:
4. Visualise with paraFoam
By the way, thank you very much four your video.
Thank you for this example!
very helpful thanks for sharing
Thank you very much!
This video is really helpful and concise!
I build a model using OpenFOAM and try to run the model in parallel.
When the size of the mesh is about 700M, the program goes well.
When I improve the number of cells and the size of the mesh becomes 5G some errors happen.
I tried to use 8 cores for parallel calculation, the errors are:
(1)7 more processes have sent help message help-btl-vader.txt / cma-permission-denied
(2)mpirun detected that one or more processes exited with non-zero status, thus causing
the job to be terminated.
Could you give me some help about how to solve this problem?
p.s. The size of the mesh which generated by blockMesh is about 5G.
The solver I used is rhoPimpleFoam.
My computer has 8 cores and 16G RAM.
what if it doesn't run faster !?
Well, that has to do with the basic issue of parallelism. If your case does not have enough effectively parallelizable work (not enough cells), then the overhead associated with parallelization will outweigh any benefit.
Dear professor , can you upload some tutorials on conjugate heat and multidomain meshing problems
very good, continud & tnx
Excellent...
Can you p l e a s e show as how to install rapiFoam for GPU also ? Thank you very much
I have not done it myself. Have you tried the forums at online-cfd.com? I think that is your best chance.
helpful