Skip to content

Reply To: Choose between CPU and GPU

New to LBM and OpenLB? Attend our upcoming one-week hands-on Spring School in Marseille/France from 19.05.2025 – 23.05.2025.

OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Choose between CPU and GPU › Reply To: Choose between CPU and GPU

October 14, 2024 at 11:23 am #9374
sfraniatte
Participant

Ok, the first lines after this call are :
[MpiManager] Sucessfully initialized, numThreads=32
[ThreadPool] Sucessfully initialized, numThreads=1

Yes, it returned true. However, I uninstalled CUDA then to have Openmpi which works properly. Because, it was not working. And it still does not work…

My main goal is to have Openmpi to use CPU. But I have the feeling that it is not possible due to the presence of the GPU card.

So, to sum up, I uninstalled CUDA and I install again Openmpi as explained in the user manual (sudo apt-get install openmpi-bin openmpi-doc libopenmpi-dev) but it still does not work properly.

Sylavin