Hello everyone! My cluster runs the CentOS 7 operating system, and I have installed OpenFOAM and ccx_preCICE on it. The Calculix version is 2.20. When running the tutorial/elastic-tube-3don the cluster, the example can be successfully executed on a single node. However, I encountered difficulties w…

It is my understanding that the Calculix binary does not support distributed memory parallelization (MPI). You’ve found that it does support shared memory parallelization (MT – or multi-thread). This is certainly a limitation of using Calculix.

Thanks a lot! I’d like to ask in passing, why does CentOS 7 only support preCICE-2.3.0? What are the reasons that prevent CentOS 7 from installing higher versions of preCICE? If I have a higher version of the GCC compiler, such as gcc-9.2.0, can I compile and install preCICE v3?

Are you building preCICE from source code on your own CentOS7 system, or are you downloading a pre-compiled version of preCICE from somwhere? If you’re getting a pre-compiled version, I think those all come in containers (like Docker) that should handle operating system and external library dependen…

Thank you for your reply! I am compiling and installing preCICE from source on CentOS 7. I learned from the following webpage that CentOS 7 only supports preCICE-v2.3.0, so I thought it would not be possible to compile and install a higher version of preCICE from source! Now I understand.

Hello, I’m also trying to run precice_ccx on an HPC system. I successfully installed all dependencies to run a coupled simulation, including the spoolesMT as mentioned in this conversation. How do you run a coupled case (calculix, openfoam, precice) using a slurm script? (can you please share a …

Hello! Up to now, I have only been able to successfully run ccx_preCICE (i.e., OpenMP) on a single node in the Slurm cluster, but not with MPI. Therefore, I am unable to provide an example of a Slurm script that successfully uses MPI. Regarding your second question, based on the installation guide o…

Hi, I split the topic form @Umut and replied in the new topic regarding CCX: [image] Running CalculiX and OpenFOAM on HPC Using preCICE Hi, I split the topic after the python problem disappeared. CalculiX on HPC The CCX adapter itself is not designed for be…

Dear @Amadeus , Thank you for your response! I would still love to see your (complete) Slurm script for running ccx_precice on a single node. As I thought more about it, I think I don’t necessarily need multi-node execution for ccx_preCICE—I’m primarily interested in understanding how you structured…

Does the executable binary file of Calculix support running on a Slurm cluster via MPI?

Using preCICE

fsimonis February 26, 2025, 12:50pm 8

Hi, I split the topic form @Umut and replied in the new topic regarding CCX:

Topic		Replies	Views
Running CalculiX and OpenFOAM on HPC Using preCICE openfoam , adapters , calculix , slurm , hpc	8	356	March 13, 2025
Calculix parallelization Official adapters and tutorials openfoam , calculix , fsi	11	3670	April 19, 2021
Problem in calling the adapted Calculix on HPC Official adapters and tutorials adapters , configuration , calculix	11	717	July 28, 2023
How to Run Coupled OpenFOAM & CalculiX Simulations in Parallel with preCICE? Using preCICE	1	132	August 14, 2025
Point-to-point communication on a cluster Using preCICE communication , configuration , parallel	2	589	June 28, 2021

Does the executable binary file of Calculix support running on a Slurm cluster via MPI?

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