Reply To: Compiling OpenLB in parallel and running it with a set number of threads
OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Compiling OpenLB in parallel and running it with a set number of threads › Reply To: Compiling OpenLB in parallel and running it with a set number of threads
October 8, 2020 at 11:52 pm
#5215
d3rioe
Participant
Thanks for the reply. I should have mentioned that I was using mpirun. For example I just ran bstep2d with the following command:
$ /usr/lib64/openmpi/bin/mpirun -np 4 --use-hwthread-cpus ./bstep2d
However the first line of output is:
[OmpManager] Sucessfully initialized, numThreads=32
Similarly when I ran it without the –use-hwthread-cpus option:
$ /usr/lib64/openmpi/bin/mpirun -np 4 ./bstep2d
[OmpManager] Sucessfully initialized, numThreads=32
I’m pretty sure that Openmpi is fine, I use it for running the other simulations that are running on my system without any issues.
- This reply was modified 4 years, 4 months ago by d3rioe.