code_saturne User's Forum

Hi Yvan, Works perfectly now that I installed code_saturne on a /shared partition between all nodes. I can just submit code_saturne run through sbatch and performance is improving a lot while running on multiple nodes ! Leveraging AWS's fsx Lustre partition type, I gained 25% performance over 512 co...

Hi Yvan, I think I have a configuration issue between SLURM on the nodes and mpi inside the container. For now, I will try to install code_saturne directly onto the nodes since this cluster will be used exclusively for this purpose... I'll keep you updated. Thanks for the advices ! Best regards, Ant...

Hi Yvan, Thank you for your answer. However I still don't completely get it. I set up the config file with a custom batch.SLURM file that i bind with the singularity container for code_saturne to find. #SBATCH --nodes=2 #SBATCH --ntasks-per-node=64 #SBATCH --cpus-per-task=1 #SBATCH --time=0:10:00 #S...

Hi Yvan, I finally set up the whole thing on an AWS cluster using graviton cpus as suggested. But I am now facing a challenge launching code_saturne on multiple nodes. Here is what i have : AWS cluster with head node and 10 compute nodes of 64 cores each (no multithread). I used C6gn instances as th...

Hi Yvan,

I will try on next install
But everything is working just fine at the moment, so I will keep the solution mentionned before.
I will give an update when trying your fix.

Best regards,
Antoine

Hi, I'm wondering if anyone has ever tried to run code_saturne simulations on an Azure Batch cluster or Google Cloud HPC ? I'm not exactly sure how to set up the whole thing, but before diving into some time-consuming trial and error, I wanted to know if there was any point doing so... I am refering...

Hello,

Do you mean using this flag when running a simulation or when installing code_saturne ?

Best regards,
Antoine

Hi Yvan, I got it to work with the following commands : code_saturne compile --libs=-lgdal --source=./SRC --dest=./DATA cp ./DATA/* ./RESU/test/ code_saturne run --no-stage --id test I tried again on code_saturne v7 which worked just fine before i updated to Debian 12, and it does not work anymore. ...

Hello Yvan,

You can find attached te output of the ldd command.

regarding GDAL : It is the right library.

Is there a way i can launch computation with the created cs_solver in the SRC directory ?

Best regards,
Antoine

Hi, I can't seem to understand why the compile stage fails whereas GDAL is installed on my computer. /usr/bin/ld: cs_user_initialization.o: in function `cs_user_initialization': cs_user_initialization.c:(.text+0x6b): undefined reference to `GDALAllRegister' /usr/bin/ld: cs_user_initialization.c:(.te...